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Dissertations / Theses on the topic 'Lithium gel polymer electrolyte system'

Author: Grafiati

Published: 6 September 2023

Last updated: 31 July 2025

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1

Chamaani, Amir. "Hybrid Polymer Electrolyte for Lithium-Oxygen Battery Application." FIU Digital Commons, 2017. https://digitalcommons.fiu.edu/etd/3562.

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The transition from fossil fuels to renewable resources has created more demand for energy storage devices. Lithium-oxygen (Li-O2) batteries have attracted much attention due to their high theoretical energy densities. They, however, are still in their infancy and several fundamental challenges remain to be addressed. Advanced analytical techniques have revealed that all components of a Li-O2 battery undergo undesirable degradation during discharge/charge cycling, contributing to reduced cyclability. Despite many attempts to minimize the anode and cathode degradation, the electrolyte remains a

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2

Safa, Meer N. "Poly (Ionic Liquid) Based Electrolyte for Lithium Battery Application." FIU Digital Commons, 2018. https://digitalcommons.fiu.edu/etd/3746.

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The demand for electric vehicles is increasing rapidly as the world is preparing for a fossil fuel-free future in the automotive field. Lithium battery technologies are the most effective options to replace fossil fuels due to their higher energy densities. However, safety remains a major concern in using lithium as the anode, and the development of non-volatile, non-flammable, high conductivity electrolytes is of great importance. In this dissertation, a gel polymer electrolyte (GPE) consisting of ionic liquid, lithium salt, and a polymer has been developed for their application in lithium ba

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3

Piana, Giulia. "Electrolyte solide innovant à base de liquides ioniques pour micro-accumulateurs au lithium : réalisation par voie humide et caractérisation des propriétés de transport." Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLS359/document.

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Dans le but d’améliorer les performances des micro-accumulateurs au lithium, de nouvelles voies de dépôt, compatibles avec des géométries texturées, sont actuellement explorées. Au cours de ce travail de thèse, un nouvel électrolyte solide déposé par voie « humide » a été développé. Ce matériau, composé d’un liquide ionique et d’un sel de lithium confinés dans une matrice solide, a été synthétisé par polymérisation in-situ d’un oligomère diméthacrylate. Afin de définir leurs caractéristiques de conduction ionique, de nouvelles méthodes, comme le suivi de la photo-polymérisation par impédance i

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4

DESTRO, MATTEO. "Towards Realization of an Innovative Li-Ion Battery: Materials Optimization and System Up-Scalable Solutions." Doctoral thesis, Politecnico di Torino, 2013. http://hdl.handle.net/11583/2506270.

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The optimisation of existing chemistries by the introduction of environmentally friendly materials and the simplification of the device production process are intriguing challenges to promote the future widespread diffusion of LIBs. Moreover, the recent development of the next-generation electronic devices promoted a new research field for the modification of the current systems into light, flexible and/or micro-sized device. The enhancement of mechanical properties through the introduction of flexible electrodes will enable LIBs to be embedded into various functional systems in a wide range o

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5

Chaudoy, Victor. "Electrolytes polymères gélifiés pour microbatteries au lithium." Thesis, Tours, 2016. http://www.theses.fr/2016TOUR4019/document.

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Au cours de cette thèse, un nouvel électrolyte polymère gel pour la réalisation de microbatteries au lithium a été développé. Le gel a été préparé par « confinement » d’une phase de N-propyl-N-méthylpyrrolidinium bis(fluorosulfonyl)imide (P13FSI) et de LiTFSI dans un réseau semi-interpénétré (sRip) de polymère (PVdFHFP/ réseau de POE). L’électrolyte gel a tout d’abord été optimisé et étudié en termes de propriétés physicochimiques et de transport ionique en fonction de sa composition. Ensuite, des batteries Li/LiNi1/3Mn1/3Co1/3O2 ont été assemblées en utilisant l’électrolyte sRip. Les performa

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6

Krejza, Ondřej. "Gelové polymerní elektrolyty pro elektrochromní prvky." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-233503.

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Předkládaná práce se zabývá výzkumem nových materiálů a metod přípravy gelových polymerních elektrolytů (GPE) na bázi methakrylátů, které lze zejména vzhledem k jejich mechanickým vlastnostem s výhodou využít při konstrukci elektrochromních (EC) prvků.

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7

Szotkowski, Radek. "Gelové polymerní elektrolyty s nanočásticemi." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2017. http://www.nusl.cz/ntk/nusl-319296.

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This master‘s thesis concerns gel polymer electrolytes formed on a methyl methacrylate base with selected types of nanoparticles. In the thesis are also analyzed the methods for measuring electrochemical properties. The practical portion deals with sample preparations of gel polymer electrolytes with different contents of alkaline salt in a solvent, creating gels with different nanoparticle content and comparing gel polymer electrolytes polymerized with heat and UV radiation. The thesis deals with the evaluation of these samples from the viewpoint of electrical conductivity and potential windo

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8

George, Sweta Mariam. "Exploring Soft Matter and Modified-Liquid Electrolytes for Alkali metal (Li, Na) Based Rechargeable Batteries." Thesis, 2022. https://etd.iisc.ac.in/handle/2005/5913.

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The current upsurge in demand for high energy density batteries for applications across industries ranging from small scale portable electronics, electric automobiles to storage grids, has led to research in next generation, beyond lithium -ion batteries. Alkali metals like lithium and sodium, by virtue of their high theoretical capacity (3860 mAhg-1 for Li and 1165 mAhg-1 for Na) and low electrochemical potentials, are most suitable anodes for producing high energy density batteries. The vigorous reactivity, unstable solid-electrolyte interface and dendrite formation are some of the major hur

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9

Sen, Sudeshna. "A Few Case Studies of Polymer Conductors for Lithium-based Batteries." Thesis, 2016. http://etd.iisc.ac.in/handle/2005/3019.

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The present thesis demonstrates and discusses polymeric ion and mixed ion-electron conductors for rechargeable batteries based on lithium viz. lithium-ion and lithium-sulphur batteries. The proposed polymer ion conductors in the thesis are discussed primarily as potential alternatives to conventional liquid and solid-crystalline electrolytes in lithium-ion batteries. These discussions are part of Chapters 2-4. On the other hand, the polymer based mixed ion-electron conductor is demonstrated as a novel electrode for lithium-Sulphur battery in Chapter 5. Possibility of application of polymer ion

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10

Sen, Sudeshna. "A Few Case Studies of Polymer Conductors for Lithium-based Batteries." Thesis, 2016. http://hdl.handle.net/2005/3019.

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The present thesis demonstrates and discusses polymeric ion and mixed ion-electron conductors for rechargeable batteries based on lithium viz. lithium-ion and lithium-sulphur batteries. The proposed polymer ion conductors in the thesis are discussed primarily as potential alternatives to conventional liquid and solid-crystalline electrolytes in lithium-ion batteries. These discussions are part of Chapters 2-4. On the other hand, the polymer based mixed ion-electron conductor is demonstrated as a novel electrode for lithium-Sulphur battery in Chapter 5. Possibility of application of polymer ion

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11

Yu-HsienTseng and 曾宇賢. "On-Site Coagulation Type Gel Polymer Electrolyte for Lithium Batteries." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/q6k829.

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12

Sheng-MinWang and 王勝民. "Application of Highly Ordered Polymer Resin as Gel Polymer Electrolyte for Lithium Batteries: Performace Test with LiFePO4-Cathode, Lithium metal-Anode." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/42986724064808121003.

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碩士<br>國立成功大學<br>化學系<br>102<br>Gel polymer electrolytes (GPE) have been attractive for the development of plastic Li ion batteries since they combine the advantages of liquid electrolytes (high ionic conductivity) and polymers (free from leaks, good mechanical strength). Gel polymer electrolytes (GPEs) were prepared by dipping a solid polymer electrolyte in 1.0M LiPF6 in ethylene carbonate (EC)/ dimethyl carbonate (DMC)/diethyl carbonate (DEC)(1:1:1 wt% + 2wt% VC) liquid electrolyte. Compare to commercial liquid electrolyte (LE). GPE has a stable electrochemical window up to 5 V vs. Li/Li+. Hig

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13

Lu, ming-yi, and 呂明怡. "New polymer electrolyte for lithium battery base PVDF-HFP system." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/38861348742433695363.

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碩士<br>國立中央大學<br>化學研究所<br>92<br>Abstract Rechargeable lithium ionic battery, compared to other secondary batteries, has the advantages of high working potential, high specific energy, wide applied temperature and no memory effect. However, in order to make a small light-weight batteries, a solid electrolyte was needed. Solid polymer electrolytes can be categorized into three types: dry-type polymer electrolyte, gel-type polymer electrolyte, and porous-type polymer electrolyte. In this studies, two systems were studied: polyaniline derivative was blended with PEO-LiClO4 electrolyte to increase t

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14

Cheng, Cheng-Liang, and 鄭丞良. "Conductive Behavior of Lithium Ions in Polyacrylonitrile-based Gel Polymer Electrolyte Containing Non-solvent." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/81015026084299217310.

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15

Zhang, J. "Investigation of polymers used in lithium oxygen batteries as electrolyte and cathode materials." Thesis, 2013. http://hdl.handle.net/10453/23554.

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University of Technology, Sydney. Faculty of Science.<br>It has been well established that the electrolytes and cathodes have a significant effect on the electrochemical performance of lithium oxygen batteries. In this Master project, polymers were employed as electrolyte and cathode materials due to their unique superior properties. Using different methods, we synthesized suitable gel polymer electrolytes and conducting polymer catalysts for lithium oxygen batteries. Techniques such as field emission gun scanning electron microscopy, X-ray diffraction, and Fourier transform infrared spectrosc

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16

Wu, Chiung-Hui, and 吳炯輝. "New Polymer Electrolyte for Lithium battery Based on PEO-PAN-LiClO4 System." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/85015927562567652565.

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碩士<br>國立中央大學<br>化學研究所<br>91<br>Abstract Since 1975 Wright et al. discovered the ionic conductivity (1x10-7 S/cm) of PEO-Lithium salt, PEO-Lthium salt based solid electrolytes have under extensively studied. However, the room temperature conductivities of PEO-Li salts are usually too low (due to the semi-crystalline nature of PEO) to be applied practically in lithium batteries. Therefore, increasing the conductivity via various physical or chemical methods has become the major research efforts. To enhance the conductivity of PEO-LiClO4 system, one of the good strategies was forming polymer

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17

Po-TingLin and 林柏廷. "Exploring the Effects of Nanofillers on the Lithium Ion Conduction Mechanism of Gel Polymer Electrolyte for Lithium Ion Battery via Multiscale Molecular Simulation." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/mdk4u2.

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18

Lai, Bo-Yu, and 賴柏宇. "Lithium Sulfur Battery Materials Development and Electrochemical Analysis – Effects of PVDF Based Gel Polymer Electrolyte on Dendrite Formation and Carbon Based Protection Layer on Lithium Sulfur Electrodes." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/g7qbwe.

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碩士<br>國立臺灣大學<br>生物產業機電工程學研究所<br>103<br>This research is dedicating to one of the most promising lithium metal battery, lithium sulfur battery. The development of this kind of lithium metal battery is facing some challenges recently, which can split to two parts. One of them is dendrite growth on the lithium metal negative electrode, which may cause some safety issue, including short-circuited and energy capacity decay. We designed a symmetric cell to in-situ observe dendrite growth when applying a constant current. In order to study the relationship between mechanical strength and dendrite gro

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19

You-ChaoShih and 施友超. "Poly(ethylene oxide-co-propylene oxide)-Based Gel Polymer Electrolyte for Lithium Ion Batteries: Performance Tests with LiFePO4-Cathode, graphite- and TiO2-Anodes." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/73542413665442816876.

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碩士<br>國立成功大學<br>化學工程學系碩博士班<br>101<br>In this study, we used PEDGE, DGEBA and D2000 by cross-linking to synthesis the copolymer –poly(ethylene oxide)-co-poly(propylene oxide) (P(EO-co-PO)). Immersing the polymer film into the organic electrolyte for 24 hours, then we got the gel polymer electrolyte (GPE). Took this GPE film to assemble batteries and test its performance. Compare the difference between GPE and the organic liquid electrolyte battery (LE) , find out the advantages of GPE. Compare to LE, the proposed GPE has higher ionic conductivity (3.8210-3 S cm-1 at 30 °C) and a wider electr

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20

(8083202), Andres Villa Pulido. "DESIGN AND CHARACTERIZATION OF A PEO-BASED POLYMER COMPOSITE ELECTROLYTE EMBEDDED WITH DOPED-LLZO: ROLE OF DOPANT IN BULK IONIC CONDUCTIVITY." Thesis, 2019.

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Ionic conductivity of solid polymer electrolytes (SPEs) can be enhanced by the addition of fillers, while maintaining good chemical stability, and compatibility with popular cathode and anode materials. Additionally, polymer composite electrolytes can replace the flammable organic liquid in a lithium-ion battery design and are compatible with lithium metal. Compatibility with Li-metal is a key development towards a next-generation rechargeable Li-ion battery, as a Li-metal anode has a specific capacity an order of magnitude higher than LiC6 anodes used today in everyday devices. The addition o

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