Academic literature on the topic 'Solid Polymer Electrolyte'

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Journal articles on the topic "Solid Polymer Electrolyte"

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Jia, Mingxun, Tunan Li, Daotong Yang, Luhua Lu, Limei Duan, Jinghai Liu, and Tong Wu. "Polymer Electrolytes for Lithium-Sulfur Batteries: Progress and Challenges." Batteries 9, no. 10 (September 25, 2023): 488. http://dx.doi.org/10.3390/batteries9100488.

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The lithium-sulfur battery has garnered significant attention from both researchers and industry due to its exceptional energy density and capacity. However, the conventional liquid electrolyte poses safety concerns due to its low boiling point, hence, research on liquid electrolytes has gradually shifted towards solid electrolytes. The polymer electrolyte exhibits significant potential for packaging flexible batteries with high energy density owing to its exceptional flexibility and processability, but it also has inherent disadvantages such as poor ionic conductivity, high crystallinity, and lack of active groups. This article critically examines recent literature to explore two types of polymer electrolytes, namely gel polymer electrolyte and solid polymer electrolyte. It analyzes the impact of polymers on the formation of lithium dendrites, addresses the challenges posed by multiple interfaces, and investigates the underlying causes of capacity decay in polymer solid-state batteries. Clarifying the current progress and summarizing the specific challenges encountered by polymer-based electrolytes will significantly contribute to the development of polymer-based lithium-sulfur battery. Finally, the challenges and prospects of certain polymer solid electrolytes in lithium-sulfur battery are examined, thereby facilitating the commercialization of solid polymer electrolytes.
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Kim, A.-yeon, Hun-Gi Jung, Hyeon-Ji Shin, and Jun tae Kim. "Binderless Sheet-Type Oxide-Sulfide Composite Solid Electrolyte for All-Solid-State Batteries." ECS Meeting Abstracts MA2023-02, no. 4 (December 22, 2023): 745. http://dx.doi.org/10.1149/ma2023-024745mtgabs.

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Lithium-ion batteries have been used as energy sources not only for small electronic devices but also for high-capacity and high-energy-density applications such as electric vehicles. However, the use of flammable organic liquid electrolytes in lithium-ion batteries has raised safety concerns in various applications. Therefore, solid-state batteries using flame-retardant inorganic materials are considered a more reasonable direction for future energy sources due to their high safety and high energy density. Solid electrolytes(SEs) are divided into oxide-based, sulfide-based, and polymer-based. Each solid electrolyte has its own advantages and disadvantages. Oxide-based solid electrolytes (e.g., Li7La3Zr2O12 (LLZO), Li3xLa2/3-xTiO3 (LLTO), Li1.3Al0.3Ti1.7(PO4)3 (LATP)) are air-stable and exhibit excellent electrochemical properties over a wide potential range. However, their high interfacial resistance may limit their practical application as batteries. Sulfide-based solid electrolytes (e.g., Li6PS5X (X=Cl, Br, I), Li10GeP2S12, (100-x)Li2S-xP2S5)) have high ionic conductivity, ductile properties, low interfacial resistance, and good room temperature workability. However, they are vulnerable to atmospheric instability, which can produce toxic gases such as H2S, and are relatively electrochemically unstable with Li metal. Polymer-based solid electrolytes, such as those made from polymers like PEO, PVDF, PAN, etc. that are compounded with other solid electrolytes (oxides, sulfides, etc.), offer the advantage of being able to form solid electrolyte membranes over large areas. But they have low ionic conductivity and weak mechanical properties of the polymer itself, limiting their practical application. To apply solid-state batteries to practical high-energy density energy storage devices such as electric vehicles, high ion conductivity, electrochemical stability, high mechanical properties, and large area formation of the electrolyte layer are essential. Solid electrolytes are mainly formed in powder form, and without a polymer binder, it is limited to apply as a film for large-capacity storage devices. Here, we fabricated a freestanding sheet-type Al-LLZO oxide-based solid electrolyte that forms a 3D network without a polymer material using an electrospinning method. In addition, we prepared a oxide-sulfide composite solid electrolyte membrane by impregnating LPSCl sulfide-based solid electrolyte into the Al-LLZO solid electrolyte sheet. As a result, This process removed the polymer and improved both the ionic conductivity and mechanical properties. Furthermore, it was possible to achieve both large-area and film characteristics without the need for a polymer.
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Ponam and Parshuram Singh. "Synthesis and characterization of PEO and PVDF based polymer electrolytes with Mg(NO3)2 ionic salt as ionic conductivity improver." Journal of Physics: Conference Series 2062, no. 1 (November 1, 2021): 012031. http://dx.doi.org/10.1088/1742-6596/2062/1/012031.

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Abstract The demand for solid polymer electrolytes is increasing continuously because of their better mechanical properties, stability, and strength while compared with liquid or gel electrolytes. However, the polymers are having poor ionic conductivity that can be improved by adding ionic salt during solid electrolyte production. Further, not all the electrolytes are compatible with polymers also the concentration of ionic salt beyond some limit not only decrease the ionic conductivity of solid electrolyte but also decrease the strength as well. In the present work, the mixture of two different polymers (10% PEO and 90% PVDF) is selected as the parent polymer for the production of solid polymer electrolytes. Mg(NO3)2 is used as ionic salt to increase the ionic conductivity and other properties of electrolytes. The concentration of Mg(NO3)2 is taken in 10%, 15%, and 20% (w%w) to the parent polymer, and the effects are analyzed on ionic conductivity. It is found that the addition of Mg(NO3)2 improves the ionic conductivity of electrolytes with a higher rate initially but the rate of increase of ionic conductivity decreases after 15%. Further, better thermal conduction and other properties are observed for the electrolyte having a 15% Mg(NO3)2 concentration. The detailed results are given in the present work.
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Dolle, Mickael, Lea Caradant, Nina Verdier, Gabrielle Foran, Paul Nicolle, David Lepage, Arnaud Prébé, and David Aymé-Perrot. "(Invited) Polymer Blends As Electrolytes in All-Solid-State Batteries." ECS Meeting Abstracts MA2023-01, no. 6 (August 28, 2023): 994. http://dx.doi.org/10.1149/ma2023-016994mtgabs.

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Advantages of polymer electrolytes include material flexibility, good interfacial compatibility and easy processability. However, these materials typically possess room temperature ionic conductivities, oxidation stability windows and mechanical strengths that are too low for them to be useful electrolyte materials in all-solid-state batteries (ASSB). One reason for this is that polymer properties that favor improved ionic conductivity such as high polymer chain mobility are generally not compatible with good mechanical strength making these properties difficult to optimize simultaneously. One strategy that has been investigated to this effect is polymer blending. The idea is that polymers with good ionic conductivity can be blended with thermoplastic or elastomeric materials that have high mechanical resistance to create a new electrolyte material with the properties of its combined parts. In this work, polymers with good ionic conductivity were combined with thermoplastic materials with high mechanical strength via melt processing methods to yield solid polymer electrolytes. The resultant electrolyte materials show promising results when implemented in composite electrodes and electrolytes for use in ASSB which will be discussed in this talk.
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Kanai, Yamato, Koji Hiraoka, Mutsuhiro Matsuyama, and Shiro Seki. "Chemically and Physically Cross-Linked Inorganic–Polymer Hybrid Solvent-Free Electrolytes." Batteries 9, no. 10 (September 26, 2023): 492. http://dx.doi.org/10.3390/batteries9100492.

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Safe, self-standing, all-solid-state batteries with improved solid electrolytes that have adequate mechanical strength, ionic conductivity, and electrochemical stability are strongly desired. Hybrid electrolytes comprising flexible polymers and highly conductive inorganic electrolytes must be compatible with soft thin films with high ionic conductivity. Herein, we propose a new type of solid electrolyte hybrid comprising a glass–ceramic inorganic electrolyte powder (Li1+x+yAlxTi2−xSiyP3−yO12; LICGC) in a poly(ethylene)oxide (PEO)-based polymer electrolyte that prevents decreases in ionic conductivity caused by grain boundary resistance. We investigated the cross-linking processes taking place in hybrid electrolytes. We also prepared chemically cross-linked PEO/LICGC and physically cross-linked poly(norbornene)/LICGC electrolytes, and evaluated them using thermal and electrochemical analyses, respectively. All of the obtained electrolyte systems were provided with homogenous, white, flexible, and self-standing thin films. The main ionic conductive phase changed from the polymer to the inorganic electrolyte at low temperatures (close to the glass transition temperature) as the LICGC concentration increased, and the Li+ ion transport number also improved. Cyclic voltammetry using [Li metal|Ni] cells revealed that Li was reversibly deposited/dissolved in the prepared hybrid electrolytes, which are expected to be used as new Li+-conductive solid electrolyte systems.
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Sadeghzadeh, Rozita, Mickaël Dollé, David Lepage, Arnaud Prébé, Gabrielle Foran, and David Aymé-Perrot. "(Digital Presentation) Post-Treatment Study on Blended Polymer for Solid-State Lithium Batteries." ECS Meeting Abstracts MA2022-02, no. 7 (October 9, 2022): 2468. http://dx.doi.org/10.1149/ma2022-0272468mtgabs.

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The widely used Li batteries (LiBs) is the most established rechargeable energy storage device. Therefore, the development of new electrode and electrolyte materials is essential for improving battery performance. Solid polymer electrolytes (SPEs) have been presented as safer alternatives for liquid electrolytes as they tend to be non-flammable, have enough mechanical strength to resist dendrite growth, and do not leak. However, these materials tend to be less conductive than liquid electrolytes. This problem can be solved by solid-state gel polymer electrolytes (GPEs), which have lately received more attention. In fact, present a possible solution to this dilemma as they combine the ionic conductivity of liquid electrolytes with the increased safety of SPE to develop of electrolytes with high ionic conductivity and good mechanical stability.1 This work presents a preparation of in-situ GPE from SPE which produce by dry process in order to take advantage of the easy processability of SPE and the higher ionic conductivity of GPE.2, 3 The initial SPE was prepared by combining two polymers with LiTFSI (bis(trifluorormethanesulfonyl)imide) via extrusion mixing. This method of GPE processing was also found to improve other aspects of the electrolyte such as thermal and electrochemical properties which were characterized using cycling voltammetry, electrochemical impedance spectroscopy, and thermal gravimetric analysis. Additionally, the salt-polymer interaction in the GPE was characterized using FTIR, NMR, and the homogeneity of the polymer blend study by SEM-EDX. The cell of LFP/electrolyte/ Li metal showed a high capacity near to the theoretical one at C/20 at temperature 60 C. Additionally, the ionic conductivity of the electrolyte is around 10-5 S/cm. These first results confirmed that this blend of the polymers is a good electrolyte candidate for lithium batteries. Verdier, N.; Lepage, D.; Zidani, R.; Prebe, A.; Ayme-Perrot, D.; Pellerin, C.; Dolle, M.; Rochefort, D., Cross-linked polyacrylonitrile-based elastomer used as gel polymer electrolyte in Li-ion battery. ACS Applied Energy Materials 2019, 3 (1), 1099-1110. Ma, C.; Cui, W.; Liu, X.; Ding, Y.; Wang, Y., In situ preparation of gel polymer electrolyte for lithium batteries: Progress and perspectives. InfoMat 2021. Verdier, N.; Foran, G.; Lepage, D.; Prébé, A.; Aymé-Perrot, D.; Dollé, M., Challenges in Solvent-Free Methods for Manufacturing Electrodes and Electrolytes for Lithium-Based Batteries. Polymers 2021, 13 (3), 323.
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Sadeghzadeh, Rozita, David Lepage, Arnaud Prébé, Gabrielle Foran, David Ayme-Perrot, and Mickael Dolle. "Advancing Lithium Battery Performance through Gel Electrolytes: Investigating EC-Based Blends with HNBR and PEC for Enhanced Conductivity." ECS Meeting Abstracts MA2023-02, no. 8 (December 22, 2023): 3319. http://dx.doi.org/10.1149/ma2023-0283319mtgabs.

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Li-ion batteries (LiBs), the most established rechargeable energy storage devices, are currently at closing the gap of their theoretical capacity. That is the main reason why Lithium metal batteries (LMB) have recently regained interest, mainly because of the higher theoretical energy densities achievable with this technology. Therefore, the development of new electrode and electrolyte materials is essential for improving battery performance. Solid polymer electrolytes (SPEs) have been presented as safer alternatives for liquid electrolytes which are used commercially in these devices as they tend to be non-flammable, have enough mechanical strength to resist lithium dendrite growth, and do not leak. However, solid polymer electrolytes are less conductive than liquid electrolytes. Improved ionic conductivity in solid electrolyte materials can be obtained through the use of solid-state gel polymer electrolytes (GPEs). These materials combine the ionic conductivity of liquid electrolytes with the increased safety of SPE resulting in electrolytes with high ionic conductivity and good mechanical stability.1 This study introduces a novel approach to creating in-situ gel polymer electrolytes (GPEs) from solid polymer electrolytes (SPEs) using melt processing followed by sample heating. 2, 3This method capitalizes on the easy processability of SPEs. Initially, the SPE was prepared by blending two polymers with LiTFSI (bis(trifluoromethanesulfonyl)imide) through extrusion mixing. The sample was then converted into a GPE via a controlled heating step. Compared to the initial SPE, the resultant GPE possessed improved thermal and electrochemical properties. In this presentation, we will provide supportive data derived from IR, DSC, and NMR analyses to highlight the differences linked to changes in salt-polymer interactions in the GPE. Verdier, N.; Lepage, D.; Zidani, R.; Prebe, A.; Ayme-Perrot, D.; Pellerin, C.; Dolle, M.; Rochefort, D., Cross-linked polyacrylonitrile-based elastomer used as gel polymer electrolyte in Li-ion battery. ACS Applied Energy Materials 2019, 3 (1), 1099-1110. Ma, C.; Cui, W.; Liu, X.; Ding, Y.; Wang, Y., In situ preparation of gel polymer electrolyte for lithium batteries: Progress and perspectives. InfoMat 2021. Verdier, N.; Foran, G.; Lepage, D.; Prébé, A.; Aymé-Perrot, D.; Dollé, M., Challenges in Solvent-Free Methods for Manufacturing Electrodes and Electrolytes for Lithium-Based Batteries. Polymers 2021, 13 (3), 323.√
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He, Binlang, Shenglin Kang, Xuetong Zhao, Jiexin Zhang, Xilin Wang, Yang Yang, Lijun Yang, and Ruijin Liao. "Cold Sintering of Li6.4La3Zr1.4Ta0.6O12/PEO Composite Solid Electrolytes." Molecules 27, no. 19 (October 10, 2022): 6756. http://dx.doi.org/10.3390/molecules27196756.

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Ceramic/polymer composite solid electrolytes integrate the high ionic conductivity of in ceramics and the flexibility of organic polymers. In practice, ceramic/polymer composite solid electrolytes are generally made into thin films rather than sintered into bulk due to processing temperature limitations. In this work, Li6.4La3Zr1.4Ta0.6O12 (LLZTO)/polyethylene-oxide (PEO) electrolyte containing bis(trifluoromethanesulfonyl)imide (LiTFSI) as the lithium salt was successfully fabricated into bulk pellets via the cold sintering process (CSP). Using CSP, above 80% dense composite electrolyte pellets were obtained, and a high Li-ion conductivity of 2.4 × 10−4 S cm–1 was achieved at room temperature. This work focuses on the conductivity contributions and microstructural development within the CSP process of composite solid electrolytes. Cold sintering provides an approach for bridging the gap in processing temperatures of ceramics and polymers, thereby enabling high-performance composites for electrochemical systems.
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Wang, Wei Min. "Discussion on the Effect Factors of the Conductivity Performance of PEO-Based Polymer Electrolyte." Advanced Materials Research 571 (September 2012): 22–26. http://dx.doi.org/10.4028/www.scientific.net/amr.571.22.

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Polymer electrolytes since the 1970s, the PV Wright, PEO polymers and inorganic salts can form complexes with high ionic conductivity. Thereafter, on a global scale, set off a craze of the theory with solid polymer electrolyte materials research and technology development, a lot of research work has been in the field to start and made great achievements in the preparation and study of different substrate materials composite polymer electrolytes, the most promising as lithium solid electrolyte materials. The polymer matrix itself large to have a high degree of crystallinity, this is very unfavorable to ion transport, therefore, to try to expand the ion transport required for the amorphous region and increase the migration of the polymer chain, and the electrolyte conductivity the rate is not only related with the polymer matrix, but also by the factors of the salt type and concentration of organic plasticizer and nano inorganic filler types and add methods.
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Yahya, Wan Zaireen Nisa, Wong Theen Meng, Mehboob Khatani, Adel Eskandar Samsudin, and Norani Muti Mohamed. "Bio-based chitosan/PVdF-HFP polymer-blend for quasi-solid state electrolyte dye-sensitized solar cells." e-Polymers 17, no. 5 (August 28, 2017): 355–61. http://dx.doi.org/10.1515/epoly-2016-0305.

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AbstractDye-sensitized solar cells (DSSCs) have emerged to become one of the most promising alternatives to conventional solar cells. However, long-term stability and light-to-energy conversion efficiency of the electrolyte in DSSCs are the main challenges in the commercial use of DSSCs. Current liquid electrolytes in DSSCs allow achieving high power conversion efficiency, but they still suffer from many disadvantages such as solvent leakage, corrosion and high volatility. Quasi-solid state electrolytes have therefore been developed in order to curb these problems. A novel polymer electrolyte composed of biobased polymer chitosan, poly(vinylidene fluoride-hexafluoropropylene) (PVdF-HFP), 1-methyl-3-propylimidazolium iodide ionic liquid and iodide/tri-iodide redox salts in various compositions is proposed in this study as a quasi-solid state electrolyte. Fourier transform infrared microscopy (FTIR) studies on the polymer electrolyte have shown interactions between the redox salt and the polymer blend. The quasi-solid state electrolyte tested in DSSCs with an optimised weight ratio of PVdF-HFP:chitosan (6:1) with ionic liquid electrolyte PMII/KI/I2 has shown the highest power conversion efficiencies of 1.23% with ionic conductivity of 5.367×10−4 S·cm−1 demonstrating the potential of using sustainable bio-based chitosan polymers in DSSCs applications.
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Dissertations / Theses on the topic "Solid Polymer Electrolyte"

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Michaels, W. C. "Microheterogeneous solid polymer electrolyte (SPE) membranes for electrocatalysis." Thesis, Stellenbosch : Stellenbosch University, 2002. http://hdl.handle.net/10019.1/52934.

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Dissertation (Ph.D.)--Stellenbosch University, 2002.
ENGLISH ABSTRACT: The deposition of platinum catalyst on cation-exchange membranes was achieved by a counter diffusion deposition method known as the Takenaka- Torikai method. The morphology of the platinum catalyst on the membranes were controlled by varying the conditions of the platinum deposition process, such as, temperature, type of reducing agent and concentration of the platinic acid solution. The effect of the sonication of platinic acid solution and the pre-treatment of membranes on the morphology of a platinum catalyst was also investigated. Platinum loading on cation-exchange membranes was determined by UV spectrophotometric and gravimetric analyses. Suitable conditions for the quantitative determination of the platinum loading on membranes by UV spectrophotometric analysis was established through the development of a protocol. Membranes were characterised using different techniques such as, Atomic Force Microscopy (AFM), Scanning Electron Microscopy (SEM), Infrared spectrometry (IR), Dielectric analysis (DEA) and Brunauer Emmett Teller adsorption (BET). The roughness profile of a platinum catalyst embedded on a membrane was explored by various statistical methods. The statistical analysis of various data sets for a surface of a platinum-containing membrane was investigated using the Hurst exponent. The effect of surface modification of membranes on the deposition process, as well as the morphology of the platinum catalyst, was investigated. Membranes were modified with ethylene diamine (EDA) and cetyltrimethylammonium bromide surfactant. Modification of membranes with cetyltrimethylammonium bromide surfactant resulted in a unique textured platinum catalyst. The electrochemical "switching" phenomenon was investigated for EDAmodified membranes and EDA-modified membranes embedded with platinum catalyst. The "switching" phenomenon was observed in i-V cyclic curves, which were obtained by galvanodynamie measurements. The application of electro catalytic membrane systems in the anodic oxidation of water was investigated by electrochemical techniques such as galvanostatic and cyclic voltammetric measurements.
AFRIKAANSE OPSOMMING: Die deponering van 'n platinum katalis op katioon-uitruil membrane is suksesvol gedoen d.m.v. die Takenaka-Torikai metode. Die morfologie van die platinum katalis op die membrane is gekontrolleer deur variasie van die kondisies van die platinum deponeringsproses, bv. temperatuur, tipe reduseermiddel gebruik en konsentrasie van die platiensuuroplossing, asook die ultrasonifikasie van die platiensuuroplossing en voorafbehandeling van die membrane. UV spektrofotometriese asook gravimetriese analitiese metodes is gebruik om die platinumlading op katioon-uitruil membrane te bepaal. Geskikte kondisies vir die kwantitatiewe bepaling van die platinumlading op membrane d.m.v. UV spektrofotometriese analise is ontwikkel deur die skep van 'n protokol. Membrane is gekarakteriseer d.m.v. die volgende tegnieke: Atoomkrag Mikroskopie, Skanderingselektron Mikroskopie, Infrarooi Spektrometrie, di-elektriese analise en Brunauer Emmett Teller adsorpsie. Die skurtheidsprofiel van 'n platinum katalis op 'n membraan is ondersoek deur gebruik te maak van verskeie statistiese metodes. Statistiese analises van verskeie data stelsels van 'n platinum-bevattende membraan is ondersoek deur gebruik te maak van die Hurst eksponent. \ Die effek van oppervlakmodifikasie op membrane sowel as die deponeringsproses en morfologie van die platinum katalis is ondersoek deur die modifikasie van membrane met etileen diamien (EDA) en setieltrimetielammonium bromied as versepingsmiddel Die elektrochemiese omswaai van EDA-gemodifiseerde membrane sowel as gemodifiseerde platinum bevattende membrane is ondersoek d.m.v. galvanodinamiese metings. Die gebruik van elektro-katalitiese membraansisteme in die anodiese oksidasie van water is ondersoek deur gebruik te maak van elektrochemiese tegnieke, bv. galvanostatiese en sikliese voltammetriese metings.
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Kim, Jong-Chul. "Lithium deposition in solid polymer electrolyte batteries." Thesis, University College London (University of London), 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.287985.

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Shao, Yunfan. "Highly electrochemical stable quaternary solid polymer electrolyte for all-solid-state lithium metal batteries." University of Akron / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=akron1522332577785545.

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Hu, Qichao. "Electrode-Electrolyte Interfaces in Solid Polymer Lithium Batteries." Thesis, Harvard University, 2012. http://dissertations.umi.com/gsas.harvard:10187.

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This thesis studies the performance of solid polymer lithium batteries from room temperature to elevated temperatures using mainly electrochemical techniques, with emphasis on the bulk properties of the polymer electrolyte and the electrode-electrolyte interfaces. Its contributions include: 1) Demonstrated the relationship between polymer segmental motion and ionic conductivity indeed has a Vogel-Tammann-Fulcher (VTF) dependence, and improved the conductivity of the graft copolymer electrolyte (GCE) by almost an order of magnitude by changing the ion-conducting block from poly(oxyethylene) methacrylate (POEM) to a block with a lower glass transition temperature \((T_g)\) poly(oxyethylene) acrylate (POEA). 2) Identified the rate-limiting step in the battery occurs at the cathode-electrolyte interface using both full cell and symmetric cell electrochemical impedance spectroscopy (EIS), improved the battery rate capability by using the GCE as both the electrolyte and the cathode binder to reduce the resistance at the cathode-electrolyte interface, and used TEM and SEM to visualize the polymer-particle interface (full cells with \(LiFePO_4\) as the cathode active material and lithium metal as the anode were assembled and tested). 3) Applied the solid polymer battery to oil and gas drilling application, performed high temperature (up to 210°C) cycling (both isothermal and thermal cycling), and demonstrated for the first time, current exchange between a solid polymer electrolyte and a liquid lithium metal. Both the cell open-circuit-voltage (OCV) and the overall GCE mass remained stable up to 200°C, suggesting that the GCE is electrochemically and gravimetrically stable at high temperatures. Used full cell EIS to study the behavior of the various battery parameters as a function of cycling and temperature. 4) Identified the thermal instability of the cell was due to the reactivity of lithium metal and its passivation film at high temperatures, and used Li/GCE/Li symmetric cell EIS to study the thermal stability of the anode-electrolyte interface, which was responsible for the fast capacity fade observed at high temperatures. 5) Proposed a new electrolyte material and a new battery design called polymer ionic liquid (PIL) battery that can dramatically improve the safety, energy density, and rate capability of rechargeable lithium batteries.
Engineering and Applied Sciences
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Harry, Katherine Joann. "Lithium dendrite growth through solid polymer electrolyte membranes." Thesis, University of California, Berkeley, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10150902.

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The next generation of rechargeable batteries must have significantly improved gravimetric and volumetric energy densities while maintaining a long cycle life and a low risk of catastrophic failure. Replacing the conventional graphite anode in a lithium ion battery with lithium foil increases the theoretical energy density of the battery by more than 40%. Furthermore, there is significant interest within the scientific community on new cathode chemistries, like sulfur and air, that presume the use of a lithium metal anode to achieve theoretical energy densities as high as 5217 W˙h/kg. However, lithium metal is highly unstable toward traditional liquid electrolytes like ethylene carbonate and dimethyl carbonate. The solid electrolyte interphase that forms between lithium metal and these liquid electrolytes is brittle which causes a highly irregular current distribution at the anode, resulting in the formation of lithium metal protrusions. Ionic current concentrates at these protrusions leading to the formation of lithium dendrites that propagate through the electrolyte as the battery is charged, causing it to fail by short-circuit. The rapid release of energy during this short-circuit event can result in catastrophic cell failure.

Polymer electrolytes are promising alternatives to traditional liquid electrolytes because they form a stable, elastomeric interface with lithium metal. Additionally, polymer electrolytes are significantly less flammable than their liquid electrolyte counterparts. The prototypical polymer electrolyte is poly(ethylene oxide). Unfortunately, when lithium anodes are used with a poly(ethylene oxide) electrolyte, lithium dendrites still form and cause premature battery failure. Theoretically, an electrolyte with a shear modulus twice that of lithium metal could eliminate the formation of lithium dendrites entirely. While a shear modulus of this magnitude is difficult to achieve with polymer electrolytes, we can greatly enhance the modulus of our electrolytes by covalently bonding the rubbery poly(ethylene oxide) to a glassy polystyrene chain. The block copolymer phase separates into a lamellar morphology yielding co-continuous nanoscale domains of poly(ethylene oxide), for ionic conduction, and polystyrene, for mechanical rigidity. On the macroscale, the electrolyte membrane is a tough free-standing film, while on the nanoscale, ions are transported through the liquid-like poly(ethylene oxide) domains.

Little is known about the formation of lithium dendrites from stiff polymer electrolyte membranes given the experimental challenges associated with imaging lithium metal. The objective of this dissertation is to strengthen our understanding of the influence of the electrolyte modulus on the formation and growth of lithium dendrites from lithium metal anodes. This understanding will help us design electrolytes that have the potential to more fully suppress the formation of dendrites yielding high energy density batteries that operate safely and have a long cycle life.

Synchrotron hard X-ray microtomography was used to non-destructively image the interior of lithium-polymer-lithium symmetric cells cycled to various stages of life. These experiments showed that in the early stages of lithium dendrite development, the bulk of the dendritic structure was inside of the lithium electrode. Furthermore, impurity particles were found at the base of the lithium dendrites. The portion of the lithium dendrite protruding into the electrolyte increased as the cell approached the end of life. This imaging technique allowed for the first glimpse at the portion of lithium dendrites that resides inside of the lithium electrode.

After finding a robust technique to study the formation and growth of lithium dendrites, a series of experiments were performed to elucidate the influence of the electrolyte’s modulus on the formation of lithium dendrites. Typically, electrochemical cells using a polystyrene – block¬ – poly(ethylene oxide) copolymer electrolyte are operated at 90 °C which is above the melting point of poly(ethylene oxide) and below the glass transition temperature of polystyrene. In these experiments, the formation of dendrites in cells operated at temperatures ranging from 90 °C to 120 °C were compared. The glass transition temperature of polystyrene (107 °C) is included in this range resulting in a large change in electrolyte modulus over a relatively small temperature window. The X-ray microtomography experiments showed that as the polymer electrolyte shifted from a glassy state to a rubbery state, the portion of the lithium dendrite buried inside of the lithium metal electrode decreased. These images coupled with electrochemical characterization and rheological measurements shed light on the factors that influence dendrite growth through electrolytes with viscoelastic mechanical properties. (Abstract shortened by ProQuest.)

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Michan, Alison Louise. "Nuclear magnetic resonance characterization of solid polymer electrolyte materials." Thesis, University of British Columbia, 2012. http://hdl.handle.net/2429/42608.

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Solid polymer electrolytes have the potential to improve manufacturability, performance, and safety characteristics of lithium-ion batteries by replacing conventional liquid electrolytes. Two different solid polymer electrolyte materials were characterized using Nuclear Magnetic Resonance (NMR) techniques. The first material is a result of research efforts on single-ion conducting polymers. The material is intended to combine the high conductivity properties of ionic liquids with lithium cation single-ion conduction. The goal of the synthesis was to produce a polymerized ionic liquid, where crosslinking an anionic monomer (AMLi) with poly(ethylene glycol) dimethacrylate (PEGDM) immobilizes the fluorinated anionic species. Pulsed-field gradient NMR diffusion measurements of the AMLi/PEGDM samples have demonstrated that both the lithium cations and fluorinated anions are mobile and contributing toward conductivity. Therefore, further work is required to successfully immobilize the fluorinated anion in a crosslinked network. The ⁷Li and ¹⁹F diffusion coefficients of the AMLi/PEGDM 40/60 sample were 3.4x10⁻⁸ cm²/s and 2.2x10⁻⁸ cm²/s at 100°C. The second material incorporates a poly(ethylene oxide) (PEO) conductive block and polyethylene (PE) reinforcement block. The PEO/PEO-b-PE/LiClO₄ samples were not intended to be single-ion conducting and materials synthesis aimed to maximize conductivity and mechanical properties. A ⁷Li diffusion coefficient of ~4x10⁻⁸ cm²/s at 60°C was observed. It is expected that the anion would also be mobile and therefore the polymer electrolyte would be a bi-ionic conductor. These samples demonstrated higher ⁷Li diffusion coefficients at a given temperature and superior mechanical properties for a flexible polymer electrolyte compared to the AMLi/PEGDM samples. Practically, the diffusion measurements of the solid polymer samples are extremely challenging, as the spin-spin (T₂) relaxation times are very short, necessitating the development of specialized pulsed-field gradient apparatus. These results provide valuable insight into the conduction mechanisms in these materials, and will drive further optimization of solid polymer electrolytes.
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Stekly, Jan J. K. "Solid polymer electrolyte chemical concentration cells for hydrogen determination." Thesis, University of Cambridge, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.385363.

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Törmä, Erik. "Synthesis and characterisation of solid low-Tg polymer electrolytes for lithium-ion batteries." Thesis, Uppsala universitet, Institutionen för kemi - Ångström, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-226754.

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Electrolytes of poly(trimethylene carbonate-co-ε-caprolactone), poly(TMC-co-CL), and LiTFSI have been prepared and characterised. The copolymers were analysed with GPC and NMR, which showed that random high molecular weight copolymers of desired compositions had been obtained. The electrolytes with varied salt concentration were examined with TGA, DSC, FTIR and impedance spectroscopy. The highest ionic conductivities were measured for the copolymer of 60:40 ratio of TMC:CL and for the homopolymer poly(ε-caprolactone), PCL, both electrolytes with 28 wt% LiTFSI. The ionic conductivity was measured to of the order of 10−3 S cm−1 for the PCL electrolyte and 10−4 S cm−1 for the 60:40 copolymer at 50 °C.
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Yang, Run. "A Superionic Conductive Solid Polymer Electrolyte Based Solid Sodium Metal Batteries with Stable Cycling Performance at Room Temperature." University of Akron / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=akron1619741453185762.

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Davies, Damian Patrick. "Development and optimisation of solid polymer electrolyte fuel cell systems." Thesis, De Montfort University, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.391234.

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Books on the topic "Solid Polymer Electrolyte"

1

Hirai, Kazuhiro. Preparation of electrodes for solid polymer electrolyte fuel cells. Ottawa: National Library of Canada, 1993.

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Davies, Damian Patrick. Development and optimisation of solid polymer electrolyte fuel cell systems. Leicester: De Montfort University, 1997.

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Solid polymer electrolytes: Fundamentals and technological applications. New York, NY: VCH, 1991.

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Neat, Robin John. Preparation-related effects in polymer solid electrolytes. Leicester: Leicester Polytechnic, 1988.

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Gray, Fiona M. Solid polymer electrolytes: Fundamentals and technological applications. New York: VCH, 1991.

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Patrick, Andrew John. Novel solid electrolytes with emphasis on polymeric systems. Leicester: Leicester Polytechnic, School of chemistry, 1986.

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Choudhury, Snehashis. Rational Design of Nanostructured Polymer Electrolytes and Solid–Liquid Interphases for Lithium Batteries. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-28943-0.

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Writer, Beta. Lithium-Ion Batteries: A Machine-Generated Summary of Current Research. Springer, 2019.

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Polymer Electrolytes for Energy Storage Devices. Taylor & Francis Group, 2021.

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Raghavan, Prasanth, and Jabeen Fatima M. J. Polymer Electrolytes for Energy Storage Devices. Taylor & Francis Group, 2021.

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Book chapters on the topic "Solid Polymer Electrolyte"

1

Rao, Swati S., and Manoranjan Patri. "Solid Polymer Electrolyte Membranes." In Smart Polymers, 291–305. New York: CRC Press, 2022. http://dx.doi.org/10.1201/9781003037880-14.

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Tsuruoka, Tohru, Karthik Krishnan, Saumya R. Mohapatra, Shouming Wu, and Masakazu Aono. "Solid-Polymer-Electrolyte-Based Atomic Switches." In Atomic Switch, 139–59. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-34875-5_8.

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Tsuchida, E. "Polymeric Solid Electrolyte and Ion-Conduction." In Progress in Pacific Polymer Science, 153–63. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-84115-6_20.

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Lee, Yu Jin, Yun Kyung Jo, Hyun Park, Ho Hwan Chun, and Nam Ju Jo. "Solvent Effect on Ion Hopping of Solid Polymer Electrolyte." In Materials Science Forum, 1049–52. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-431-6.1049.

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Kudoh, Y., M. Fukuyama, T. Kojima, N. Nanai, and S. Yoshimura. "A Highly Thermostable Aluminum Solid Electrolytic Capacitor with an Electroconducting-Polymer Electrolyte." In Intrinsically Conducting Polymers: An Emerging Technology, 191–207. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-017-1952-0_18.

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Lee, Gyu Jei, Han Kyu Lee, and Dong Il Kwon. "Microscratch Analysis and Interfacial Toughness of Catalyst Coating on Electrolyte Polymer in Micro Fuel Cells." In Solid State Phenomena, 1633–36. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/3-908451-31-0.1633.

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Donoso, J. P., M. G. Cavalcante, W. Gorecki, C. Berthier, and M. Armand. "NMR Study of the Polymer Solid Electrolyte PEO (LIBF4)x." In 25th Congress Ampere on Magnetic Resonance and Related Phenomena, 331–32. Berlin, Heidelberg: Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-642-76072-3_171.

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Miyanishi, Shoji, and Takeo Yamaguchi. "Development of Polymer Electrolyte Membranes for Solid Alkaline Fuel Cells." In Nanocarbons for Energy Conversion: Supramolecular Approaches, 309–50. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-92917-0_14.

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Tamilselvi, P., and M. Hema. "Fabrication of Three-Electrode Lithium Cell Using Solid Polymer Electrolyte." In Lecture Notes in Mechanical Engineering, 679–86. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-15-8025-3_65.

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Talham, Daniel R., Richard M. Crooks, Vince Cammarata, Nicholas Leventis, Martin O. Schloh, and Mark S. Wrighton. "Solid-State Microelectrochemical Devices: Transistor and Diode Devices Employing a Solid Polymer Electrolyte." In Lower-Dimensional Systems and Molecular Electronics, 627–34. Boston, MA: Springer US, 1990. http://dx.doi.org/10.1007/978-1-4899-2088-1_73.

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Conference papers on the topic "Solid Polymer Electrolyte"

1

JAIPAL REDDY, M., and PETER P. CHU. "MESOPOROUS COMPOSITE PEO SOLID POLYMER ELECTROLYTE." In Proceedings of the 8th Asian Conference. WORLD SCIENTIFIC, 2002. http://dx.doi.org/10.1142/9789812776259_0044.

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Fauzi, Iqbal, and I. Made Arcana. "Solid polymer electrolyte from phosphorylated chitosan." In 4TH INTERNATIONAL CONFERENCE ON MATHEMATICS AND NATURAL SCIENCES (ICMNS 2012): Science for Health, Food and Sustainable Energy. AIP Publishing LLC, 2014. http://dx.doi.org/10.1063/1.4868772.

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Liu, Wei, Ryan Milcarek, Kang Wang, and Jeongmin Ahn. "Novel Structured Electrolyte for All-Solid-State Lithium Ion Batteries." In ASME 2015 13th International Conference on Fuel Cell Science, Engineering and Technology collocated with the ASME 2015 Power Conference, the ASME 2015 9th International Conference on Energy Sustainability, and the ASME 2015 Nuclear Forum. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/fuelcell2015-49384.

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In this study, a multi-layer structure solid electrolyte (SE) for all-solid-state electrolyte lithium ion batteries (ASSLIBs) was fabricated and characterized. The SE was fabricated by laminating ceramic electrolyte Li1.3Al0.3Ti1.7(PO4)3 (LATP) with polymer (PEO)10-Li(N(CF3SO2)2 electrolyte and gel-polymer electrolyte of PVdF-HFP/ Li(N(CF3SO2)2. It is shown that the interfacial resistance is generated by poor contact at the interface of the solid electrolytes. The lamination protocol, material selection and fabrication method play a key role in the fabrication process of practical multi-layer SEs.
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OTSUKI, MANABU, MAMI TANAKA, and TAKESHI OKUYAMA. "CURVATURE SENSOR USING A SOLID POLYMER ELECTROLYTE." In Proceedings of the Tohoku University Global Centre of Excellence Programme. IMPERIAL COLLEGE PRESS, 2012. http://dx.doi.org/10.1142/9781848169067_0056.

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Vijaya, N., S. Selvasekarapandian, D. Vinoth Pandi, S. Sindhuja, A. Arun, and S. Karthikeyan. "Bio – Polymer Pectin Based Proton Conducting Polymer Electrolyte." In 14th Asian Conference on Solid State Ionics (ACSSI 2014). Singapore: Research Publishing Services, 2014. http://dx.doi.org/10.3850/978-981-09-1137-9_043.

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Teofilo, Vincent L., Mark J. Isaacson, Robert L. Higgins, and Edward A. Cuellar. "Advanced Lithium Ion Solid Polymer Electrolyte Battery Development." In 34th Intersociety Energy Conversion Engineering Conference. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1999. http://dx.doi.org/10.4271/1999-01-2463.

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Manoharan, Sindhuja, S. Selvasekarapandian, Vinithra Gurunarayanan, D. Vinoth Pandi, C. Veeramanikandan, and Arun Araichimani. "Characetrization of PVA:Cellobiose – NH4 SCN Polymer Electrolyte." In 14th Asian Conference on Solid State Ionics (ACSSI 2014). Singapore: Research Publishing Services, 2014. http://dx.doi.org/10.3850/978-981-09-1137-9_028.

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Selvasekarapandian, S., N. Rubiya Evangelin, D. Vinoth Pandi, Arun Araichimani, N. Vijaya, Sindhuja Manoharan, S. Karthikeyan, and T. Mathavan. "Cellulose Acetatae Based Proton Conducting Polymer Electrolyte." In 14th Asian Conference on Solid State Ionics (ACSSI 2014). Singapore: Research Publishing Services, 2014. http://dx.doi.org/10.3850/978-981-09-1137-9_048.

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Kumar, P. Naveen, U. Sasikala, P. Chandra Sekhar, V. B. S. Achari, V. V. R. N. Rao, A. K. Sharma, Alka B. Garg, R. Mittal, and R. Mukhopadhyay. "Discharge Characteristics of Low Molecular Weight Solid Polymer Electrolyte." In SOLID STATE PHYSICS, PROCEEDINGS OF THE 55TH DAE SOLID STATE PHYSICS SYMPOSIUM 2010. AIP, 2011. http://dx.doi.org/10.1063/1.3606028.

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Mishra, Kuldeep, S. S. Pundir, and D. K. Rai. "All-solid-state proton battery using gel polymer electrolyte." In SOLID STATE PHYSICS: Proceedings of the 58th DAE Solid State Physics Symposium 2013. AIP Publishing LLC, 2014. http://dx.doi.org/10.1063/1.4872700.

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Reports on the topic "Solid Polymer Electrolyte"

1

Fuller, T. F. Solid-polymer-electrolyte fuel cells. Office of Scientific and Technical Information (OSTI), July 1992. http://dx.doi.org/10.2172/7001224.

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Fuller, Thomas F. Solid-polymer-electrolyte fuel cells. Office of Scientific and Technical Information (OSTI), July 1992. http://dx.doi.org/10.2172/10180527.

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Prasad, P. S., M. Z. Munshi, B. B. Owens, and W. H. Smyri. Ambient Temperature Solid Polymer Electrolyte Devices. Fort Belvoir, VA: Defense Technical Information Center, May 1990. http://dx.doi.org/10.21236/ada228716.

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Metz, P., and M. Piraino. Photovoltaic-powered solid polymer electrolyte (SPE) electrolyzer system evaluation. Final report. Office of Scientific and Technical Information (OSTI), July 1985. http://dx.doi.org/10.2172/6192547.

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Harry, Katherine Joann. Lithium dendrite growth through solid polymer electrolyte membranes. Office of Scientific and Technical Information (OSTI), May 2016. http://dx.doi.org/10.2172/1481923.

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Schmidt, Sharon K., Ronald L. Cook, and Anthony F. Sammells. Characterization of Illuminated Semiconductor/Solid-Electrolyte Junctions. Semiconductor Redox Polymer Detector Junctions. Fort Belvoir, VA: Defense Technical Information Center, September 1985. http://dx.doi.org/10.21236/ada167665.

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Munshi, M. Z., and Boone B. Owens. A Study into the Effect of Humidity on (PEO)8.LiCF3SO3 Solid Polymer Electrolyte. Fort Belvoir, VA: Defense Technical Information Center, January 1987. http://dx.doi.org/10.21236/ada176212.

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Macdonald, Digby D., Mirna Urquidi-Macdonald, Harry Allcock, George Engelhard, N. Bomberger, L. Gao, and D. Olmeijer. Development of novel strategies for enhancing the cycle life of lithium solid polymer electrolyte batteries. Final report. Office of Scientific and Technical Information (OSTI), April 2001. http://dx.doi.org/10.2172/810692.

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Lin, Hsiu-Ping, and Denis Fauteux. Flexible Manufacturing, Rapid Prototyping of Solid Polymer Electrolyte (SPE), Rechargeable Ambient Temperature Batteries. Part A and B. Fort Belvoir, VA: Defense Technical Information Center, February 1995. http://dx.doi.org/10.21236/ada300077.

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Appleby, A. J. A Lightweight Solid Polymer Electrolyte Fuel Cell with Stack Power Density of 3kW/lb (7 kW/kg). Fort Belvoir, VA: Defense Technical Information Center, January 1989. http://dx.doi.org/10.21236/ada216253.

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