Увійти

Готові списки джерел за темами / High energy density electrodes

Добірка наукової літератури з теми "High energy density electrodes"

Автор: Grafiati

Опубліковано: 20 червня 2021

Оновлено: 1 лютого 2022

Оформте джерело за APA, MLA, Chicago, Harvard та іншими стилями

Оберіть тип джерела:

Ознайомтеся зі списками актуальних статей, книг, дисертацій, тез та інших наукових джерел на тему "High energy density electrodes".

Біля кожної праці в переліку літератури доступна кнопка «Додати до бібліографії». Скористайтеся нею – і ми автоматично оформимо бібліографічне посилання на обрану працю в потрібному вам стилі цитування: APA, MLA, «Гарвард», «Чикаго», «Ванкувер» тощо.

Також ви можете завантажити повний текст наукової публікації у форматі «.pdf» та прочитати онлайн анотацію до роботи, якщо відповідні параметри наявні в метаданих.

Зміст

Статті в журналах
Дисертації
Книги
Частини книг
Тези доповідей конференцій
Звіти організацій

Статті в журналах з теми "High energy density electrodes":

1

Payer, Gizem, and Özgenç Ebil. "Zinc Electrode Morphology Evolution in High Energy Density Nickel-Zinc Batteries." Journal of Nanomaterials 2016 (2016): 1–9. http://dx.doi.org/10.1155/2016/1280236.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Prismatic Nickel-Zinc (NiZn) batteries with energy densities higher than 100 Wh kg−1were prepared using Zn electrodes with different initial morphologies. The effect of initial morphology of zinc electrode on battery capacity was investigated. Scanning electron microscopy (SEM) and X-ray diffraction (XRD) reveal that initial morphology of zinc electrode changes drastically after a few charge/discharge cycles regardless of initial ZnO powder used. ZnO electrodes prepared using ZnO powders synthesized from ZnCl2and Zn(NO3)2lead to average battery energy densities ranging between 92 Wh kg−1and 109 Wh kg−1while using conventional ZnO powder leads to a higher energy density, 118 Wh kg−1. Average discharge capacities of zinc electrodes vary between 270 and 345 mA g−1, much lower than reported values for nano ZnO powders in literature. Higher electrode surface area or higher electrode discharge capacity does not necessarily translate to higher battery energy density.

2

Rani, Janardhanan, Ranjith Thangavel, Se-I. Oh, Yun Lee, and Jae-Hyung Jang. "An Ultra-High-Energy Density Supercapacitor; Fabrication Based on Thiol-functionalized Graphene Oxide Scrolls." Nanomaterials 9, no. 2 (January 24, 2019): 148. http://dx.doi.org/10.3390/nano9020148.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Present state-of-the-art graphene-based electrodes for supercapacitors remain far from commercial requirements in terms of high energy density. The realization of high energy supercapacitor electrodes remains challenging, because graphene-based electrode materials are synthesized by the chemical modification of graphene. The modified graphene electrodes have lower electrical conductivity than ideal graphene, and limited electrochemically active surface areas due to restacking, which hinders the access of electrolyte ions, resulting in a low energy density. In order to solve the issue of restacking and low electrical conductivity, we introduce thiol-functionalized, nitrogen-doped, reduced graphene oxide scrolls as the electrode materials for an electric double-layer supercapacitor. The fabricated supercapacitor exhibits a very high energy/power density of 206 Wh/kg (59.74 Wh/L)/496 W/kg at a current density of 0.25 A/g, and a high power/energy density of 32 kW/kg (9.8 kW/L)/9.58 Wh/kg at a current density of 50 A/g; it also operates in a voltage range of 0~4 V with excellent cyclic stability of more than 20,000 cycles. By suitably combining the scroll-based electrode and electrolyte material, this study presents a strategy for electrode design for next-generation energy storage devices with high energy density without compromising the power density.

3

Kwon, Hae-Jun, Sang-Wook Woo, Yong-Ju Lee, Je-Young Kim, and Sung-Man Lee. "Achieving High-Performance Spherical Natural Graphite Anode through a Modified Carbon Coating for Lithium-Ion Batteries." Energies 14, no. 7 (April 1, 2021): 1946. http://dx.doi.org/10.3390/en14071946.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

The electrochemical performance of modified natural graphite (MNG) and artificial graphite (AG) was investigated as a function of electrode density ranging from 1.55 to 1.7 g∙cm−3. The best performance was obtained at 1.55 g∙cm−3 and 1.60 g∙cm−3 for the AG and MNG electrodes, respectively. Both AG, at a density of 1.55 g∙cm−3, and MNG, at a density of 1.60 g∙cm−3, showed quite similar performance with regard to cycling stability and coulombic efficiency during cycling at 30 and 45 °C, while the MNG electrodes at a density of 1.60 g∙cm−3 and 1.7 g∙cm−3 showed better rate performance than the AG electrodes at a density of 1.55 g∙cm−3. The superior rate capability of MNG electrodes can be explained by the following effects: first, their spherical morphology and higher electrode density led to enhanced electrical conductivity. Second, for the MNG sample, favorable electrode tortuosity was retained and thus Li+ transport in the electrode pore was not significantly affected, even at high electrode densities of 1.60 g∙cm−3 and 1.7 g∙cm−3. MNG electrodes also exhibited a similar electrochemical swelling behavior to the AG electrodes.

4

Wu, Qiang, Jim P. Zheng, Mary Hendrickson, and Edward J. Plichta. "Dry Process for Fabricating Low Cost and High Performance Electrode for Energy Storage Devices." MRS Advances 4, no. 15 (2019): 857–63. http://dx.doi.org/10.1557/adv.2019.29.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

AbstractWe report a roll-to-roll dry processing for making low cost and high performance electrodes for lithium-ion batteries (LIBs). Currently, the electrodes for LIBs are made with a slurry casting procedure (wet method). The dry electrode fabrication is a three-step process including: step 1 of uniformly mixing electrode materials powders comprising an active material, a carbonaceous conductor and the soft polymer binder; step 2 of forming a free-standing, continuous electrode film by pressing the mixed powders together through the gap between two rolls of a roll-mill; and step 3 of roll-to-roll laminating the electrode film onto a substrate such as a current collector. Compared with the conventional wet slurry electrode manufacturing method, the dry manufactural procedure and infrastructure are simpler, the production cost is lower, and the process eliminates volatile organic compound emission and is more environmentally friendly, and the ability of making thick (>120µm) electrodes with high tap density results in high energy density of final energy storage device. A prototype LIBs of LiNi0.6Mn0.2Co0.2O2 (NMC622)/graphite also has 230 Wh/ kg energy density.

5

Markoulidis, Todorova, Grilli, Lekakou, and Trapalis. "Composite Electrodes of Activated Carbon and Multiwall Carbon Nanotubes Decorated with Silver Nanoparticles for High Power Energy Storage." Journal of Composites Science 3, no. 4 (November 8, 2019): 97. http://dx.doi.org/10.3390/jcs3040097.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Composite materials in electrodes for energy storage devices can combine different materials of high energy density, in terms of high specific surface area and pseudocapacitance, with materials of high power density, in terms of high electrical conductivity and features lowering the contact resistance between electrode and current collector. The present study investigates composite coatings as electrodes for supercapacitors with organic electrolyte 1.5 M TEABF4 in acetonitrile. The composite coatings contain high surface area activated carbon (AC) with only 0.15 wt% multiwall carbon nanotubes (MWCNTs) which, dispersed to their percolation limit, offer high conductivity. The focus of the investigations is on the decoration of MWCNTs with silver nanoparticles, where smaller Ag crystallites of 16.7 nm grew on carboxylic group-functionalized MWCNTs, MWCNT–COOH, against 27–32 nm Ag crystallites grown on unfunctionalized MWCNTs. All Ag-decorated MWCNTs eliminate the contact resistance between the composite electrode and the current collector that exists when undecorated MWCNTs are used in the composite electrodes. Ag-decorated MWCNT–COOH tripled the power density and Ag-decorated MWCNT additive doubled the power density and increased the maximum energy density by 6%, due to pseudocapacitance of Ag, compared to composite electrodes with undecorated MWCNTs.

6

Tsai, Shan-Ho, Ying-Ru Chen, Yi-Lin Tsou, Tseng-Lung Chang, Hong-Zheng Lai, and Chi-Young Lee. "Applications of Long-Length Carbon Nano-Tube (L-CNT) as Conductive Materials in High Energy Density Pouch Type Lithium Ion Batteries." Polymers 12, no. 7 (June 30, 2020): 1471. http://dx.doi.org/10.3390/polym12071471.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Lots of lithium ion battery (LIB) products contain lithium metal oxide LiNi5Co2Mn3O2 (LNCM) as the positive electrode’s active material. The stable surface of this oxide results in high resistivity in the battery. For this reason, conductive carbon-based materials, including acetylene black and carbon black, become necessary components in electrodes. Recently, carbon nano-tube (CNT) has appeared as a popular choice for the conductive carbon in LIB. However, a large quantity of the conductive carbon, which cannot provide capacity as the active material, will decrease the energy density of batteries. The ultra-high cost of CNT, compared to conventional carbon black, is also a problem. In this work, we are going to introduce long-length carbon nano-tube s(L-CNT) into electrodes in order to design a reduced-amount conductive carbon electrode. The whole experiment will be done in a 1Ah commercial type pouch LIB. By decreasing conductive carbon as well as increasing the active material in the positive electrode, the energy density of the LNCM-based 1Ah pouch type LIB, with only 0.16% of L-CNT inside the LNCM positive electrode, could reach 224 Wh/kg and 549 Wh/L, in weight and volume energy density, respectively. Further, this high energy density LIB with L-CNT offers stable cyclability, which may constitute valuable progress in portable devices and electric vehicle (EV) applications.

7

Lawrence, Daniel W., Chau Tran, Arun T. Mallajoysula, Stephen K. Doorn, Aditya Mohite, Gautam Gupta, and Vibha Kalra. "High-energy density nanofiber-based solid-state supercapacitors." Journal of Materials Chemistry A 4, no. 1 (2016): 160–66. http://dx.doi.org/10.1039/c5ta05552k.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

We have developed binder-free solid-state electric double layer supercapacitors using freestanding porous carbon nanofiber electrodes fabricated using electrospinning and silica-based ionic liquid gel electrolytes.

8

Wang, Jie, Shengyang Dong, Bing Ding, Ya Wang, Xiaodong Hao, Hui Dou, Yongyao Xia, and Xiaogang Zhang. "Pseudocapacitive materials for electrochemical capacitors: from rational synthesis to capacitance optimization." National Science Review 4, no. 1 (December 12, 2016): 71–90. http://dx.doi.org/10.1093/nsr/nww072.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Abstract Among various energy-storage devices, electrochemical capacitors (ECs) are prominent power provision but show relatively low energy density. One way to increase the energy density of ECs is to move from carbon-based electric double-layer capacitors to pseudocapacitors, which manifest much higher capacitance. However, compared with carbon materials, the pseudocapacitive electrodes suffer from high resistance for electron and/or ion transfer, significantly restricting their capacity, rate capability and cyclability. Rational design of electrode materials offers opportunities to optimize their electrochemical performance, leading to devices with high energy density while maintaining high power density. This paper reviews the different approaches of electrodes striving to advance the energy and power density of ECs.

9

Park, Chang Won, Jung-Hun Lee, Jae Kwon Seo, Weerawat To A. Ran, Dongmok Whang, Soo Min Hwang, and Young-Jun Kim. "Graphene/PVDF Composites for Ni-rich Oxide Cathodes toward High-Energy Density Li-ion Batteries." Materials 14, no. 9 (April 27, 2021): 2271. http://dx.doi.org/10.3390/ma14092271.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Li-ion batteries (LIBs) employ porous, composite-type electrodes, where few weight percentages of carbonaceous conducting agents and polymeric binders are required to bestow electrodes with electrical conductivity and mechanical robustness. However, the use of such inactive materials has limited enhancements of battery performance in terms of energy density and safety. In this study, we introduced graphene/polyvinylidene fluoride (Gr/PVdF) composites in Ni-rich oxide cathodes for LIBs, replacing conventional conducting agents, carbon black (CB) nanoparticles. By using Gr/PVdF suspensions, we fabricated highly dense LiNi0.85Co0.15Al0.05O2 (NCA) cathodes having a uniform distribution of conductive Gr sheets without CB nanoparticles, which was confirmed by scanning spreading resistance microscopy mode using atomic force microscopy. At a high content of 99 wt.% NCA, good cycling stability was shown with significantly improved areal capacity (Qareal) and volumetric capacity (Qvol), relative to the CB/PVdF-containing NCA electrode with a commercial-level of electrode parameters. The NCA electrodes using 1 wt.% Gr/PVdF (0.9:0.1) delivered a high Qareal of ~3.7 mAh cm−2 (~19% increment) and a high Qvol of ~774 mAh cm−3 (~18% increment) at a current rate of 0.2 C, as compared to the conventional NCA electrode. Our results suggest a viable strategy for superseding conventional conducting agents (CB) and improving the electrochemical performance of Ni-rich cathodes for advanced LIBs.

10

Song, Jiaxing, Guoqiang Ma, Fei Qin, Lin Hu, Bangwu Luo, Tiefeng Liu, Xinxing Yin, et al. "High-Conductivity, Flexible and Transparent PEDOT:PSS Electrodes for High Performance Semi-Transparent Supercapacitors." Polymers 12, no. 2 (February 14, 2020): 450. http://dx.doi.org/10.3390/polym12020450.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Herein, we report a flexible high-conductivity transparent electrode (denoted as S-PH1000), based on conducting polymer poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS), and itsapplication to flexible semi-transparentsupercapacitors. A high conductivity of 2673 S/cm was achieved for the S-PH1000 electrode on flexible plastic substrates via a H2SO4 treatment with an optimized concentration of 80 wt.%. This is among the top electrical conductivities of PEDOT:PSS films processed on flexible substrates. As for the electrochemical properties,a high specific capacitance of 161F/g was obtained from the S-PH1000 electrode at a current density of 1 A/g. Excitingly, a specific capacitance of 121 F/g was retained even when the current density increased to 100 A/g, which demonstrates the high-rate property of this electrode. Flexible semi-transparent supercapacitors based on these electrodes demonstrate high transparency, over 60%, at 550 nm. A high power density value, over 19,200 W/kg,and energy density, over 3.40 Wh/kg, was achieved. The semi-transparent flexible supercapacitor was successfully applied topower a light-emitting diode.

Більше джерел

Дисертації з теми "High energy density electrodes":

1

Reck, James Nicholas. "Thin film techniques for the fabrication of nano-scale high energy density capacitors." Diss., Rolla, Mo. : Missouri University of Science and Technology, 2008. http://scholarsmine.mst.edu/thesis/pdf/Reck_09007dcc805c0c2a.pdf.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Thesis (Ph. D.)--Missouri University of Science and Technology, 2008.
Vita. The entire thesis text is included in file. Title from title screen of thesis/dissertation PDF file (viewed March 18, 2009) Includes bibliographical references.

2

Partridge, James M. "Development of a micro-retarding potential analyzer for high-density flowing plasmas." Link to electronic thesis, 2005. http://www.wpi.edu/Pubs/ETD/Available/etd-111005-142414/.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Thesis (M.S.)--Worcester Polytechnic Institute.
Keywords: Ion Energy Distribution; Current Collection Theory; Energy Diagnostic; Retarding Potential Analyzer; Electric Propulsion. Includes bibliographical references. (p.91-95)

3

Armutlulu, Andac. "Deterministically engineered, high power density energy storage devices enabled by MEMS technologies." Diss., Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/54270.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

This study focuses on the design, fabrication, and characterization of deterministically engineered, three-dimensional architectures to be used as high-performance electrodes in energy storage applications. These high-surface-area architectures are created by the robotically-assisted sequential electrodeposition of structural and sacrificial layers in an alternating fashion, followed by the removal of the sacrificial layers. The primary goal of this study is the incorporation of these highly laminated architectures into the battery electrodes to improve their power density without compromising their energy density. MEMS technologies, as well as electrochemical techniques, are utilized for the realization of these high-power electrodes with precisely controlled characteristic dimensions. Diffusion-limited models are adopted for the determination of the optimum characteristic dimensions of the electrodes, including the surface area, the thickness of the active material film, and the distance between the adjacent layers of the multilayer structure. The contribution of the resultant structures to the power performance is first demonstrated by a proof-of-concept Zn-air microbattery which is based on a multilayer Ni backbone coated with a conformal Zn film serving as the anode. This primary battery system demonstrates superior performance to its thin-film counterpart in terms of the energy density at high discharge rates. Another demonstration involves secondary battery chemistries, including Ni(OH)2 and Li-ion systems, both of which exhibit significant cycling stability and remarkable power capability by delivering more than 50% of their capacities after ultra-fast charge rates of 60 C. Areal capacities as high as 5.1 mAh cm-2 are reported. This multilayer fabrication approach is also proven successful for realizing high-performance electrochemical capacitors. Ni(OH)2-based electrochemical capacitors feature a relatively high areal capacitance of 1319 mF cm-2 and an outstanding cycling stability with a 94% capacity retention after more than 1000 cycles. The improved power performance of the electrodes is realized by the simultaneous minimization of the internal resistances encountered during the transport of the ionic and electronic species at high charge and discharge rates. The high surface area provided by the highly laminated backbone structures enables an increased number of active sites for the redox reactions. The formation of a thin and conformal active material film on this high surface area structure renders a reduced ionic diffusion and electronic conduction path length, mitigating the power-limiting effect of the active materials with low conductivities. Also, the highly conductive backbone serving as a mechanically stable and electrochemically inert current collector features minimized transport resistance for the electrons. Finally, the highly scalable nature of the multilayer structures enables the realization of high-performance electrodes for a wide range of applications from autonomous microsystems to macroscale portable electronic devices.

4

Luo, Jingru. "Electrode and Electrolyte Design for High Energy Density Batteries:." Thesis, Boston College, 2020. http://hdl.handle.net/2345/bc-ir:108928.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Thesis advisor: Udayan Mohanty
Thesis advisor: Dunwei Wang
With the fast development of society, the demand for batteries has been increasing dramatically over the years. To satisfy the ever-increasing demand for high energy density, different chemistries were explored. From the first-generation lead–acid batteries to the state-of-the-art LIBs (lithium ion batteries), the energy density has been improved from 40 to over 200 Wh kg⁻¹. However, the development of LIBs has approached the upper limit. Electrode materials based on insertion chemistry generally deliver a low capacity of no more than 400 mAh/g. To break the bottleneck of current battery technologies, new chemistries are needed. Moving from the intercalation chemistry to conversion chemistry is a trend. The conversion electrode materials feature much higher capacity than the conventional intercalation-type materials, especially for the O₂ cathode and Li metal anode. The combination of these two can bring about a ten-folds of energy density increase to the current LIBs. Moreover, to satisfy the safety requirements, either using non-flammable electrolytes to reduce the safety risk of Li metal anode or switch to dendrite-free Mg anode is a good strategy toward high energy density batteries. First, to enable the conversion-type O₂ cathode, a wood-derived, free-standing porous carbon electrode was demonstrated and successfully be applied as a cathode in Li-O₂ batteries. The spontaneously formed hierarchical porous structure exhibits good performance in facilitating the mass transport and hosting the discharge products of Li₂O₂. Heteroatom (N) doping further improves the catalytic activity of the carbon cathode with lower overpotential and higher capacity. Next, to solve the irreversible Li plating/stripping and safety issues related with Li metal anode, we introduced O₂ as additives to enable Li metal anode operation in non-flammable triethyl phosphate (TEP) electrolyte. The electrochemically induced chemical reaction between O₂- derived species and TEP solvent molecules facilitated the beneficial SEI components formation and effectively suppressed the TEP decomposition. The promise of safe TEP electrolyte was also demonstrated in Li-O₂ battery and Li-LFP battery. If we think beyond Li chemistries, Mg anode with dendrite-free property can be a promising candidate to further reduce the safety concerns while remaining the high energy density advantage. Toward the end of this thesis, we developed a thin film metal–organic framework (MOF) for selective Mg²⁺ transport to solve the incompatibility issues between the anode and the cathode chemistry for Mg batteries
Thesis (PhD) — Boston College, 2020
Submitted to: Boston College. Graduate School of Arts and Sciences
Discipline: Chemistry

5

Ihrfors, Charlotte. "Binder-free oxide nanotube electrodes for high energy and power density 3D Li-ion microbatteries." Thesis, Uppsala universitet, Strukturkemi, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-227451.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

This thesis covers synthesis and characterisation of TiO2 nanotubes and TiO2 / Li4Ti5O12 composite nanotubes. The aim was to build batteries with high areal capacity and good rate capability. TiO2 nanotubes were synthesized by two step anodization of titanium metal foil and the composite electrodes were synthesized through electrochemical lithiation of TiO2 nanotubes. To improve the battery performance the TiO2 nanotubes were annealed at 350 °C in air atmosphere, while the composite electrodes were annealed in argon at 550 °C. The longest TiO2 nanotubes were measured to 42.5 μm. The 40 μm long nanotubes displayed an areal capacity of 1.0 mAh/cm2 and a gravimetric capacity of 89 mAh/g. Nanotubes having a length of 10 μm had an areal capacity of 0.33 mAh/cm2 and a gravimetriccapacity of 130 mAh/g. When cycled at high rates, 10C, the capacity of the 40 μm nanotubes was 0.25 mAh/cm2, using a current density of 9.3 mA. The capacity of the 40 μm long nanotubes were higher than for the 10 μm long, but the increase was not proportional to the increase in length. A composite electrode was successfully synthesized and was found to have a capacity of 0.25 mAh/cm2 at a rate of C/5.

6

Lim, Tongli. "Fabrication of high energy density tin/carbon anode using reduction expansion synthesis and aerosol through plasma techniques." Thesis, Monterey, California: Naval Postgraduate School, 2017. http://hdl.handle.net/10945/53011.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Approved for public release; distribution is unlimited
The aim of this study was to fabricate tin/carbon (Sn/C) battery anodes using a novel approach, reduction expansion synthesis (RES), and test their performance as electrodes in lithium or sodium batteries. A second preparation route, the Aerosol-Through-Plasma (ATP) method, was also employed for comparison. The specimens generated were characterized, before and after cycling, using techniques such as X-ray diffraction, scanning, and transmission electron microscopy. The RES technique was successful in creating remarkably small (ca. <5 nm) nano-scale particles of tin dispersed on the carbon support. The use of the electrodes as part of coin cell batteries resulted in capacitance values of 320 mAh/g and 110 mAh/g for lithium-ion and sodium-ion batteries, respectively. Nano-sized Sn particles were found before and after cycling. It is believed that bonds between metal atoms and dangling carbon produced via the reduction of the carbon surface during RES were responsible for the materials' ability to withstand stresses during lithiation, avoid volumetric expansion, and prevent disintegration after hundreds of cycles. When tin loading in Sn/C was increased from 10% to 20%, an increase of capacitance from 280 mAh/g to 320mAh/g was observed; thus, increased tin loading is recommended for future studies. Tin/carbon produced using ATP presented morphology consistent with stable electrodes, although battery testing was not completed because of the difficulty of producing the material in sufficient quantity.
Military Expert 5, Republic of Singapore Navy

7

Breitenbach, Rene. "Development of Free-standing Nanostructured Iron Oxide Electrodes for High Energy and Power Density 3D Li-ion Microbatteries." Thesis, Uppsala universitet, Strukturkemi, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-301338.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

8

Jenicek, David P. (David Pierre). "Improvements on carbon nanotube structures in high-energy density ultracapacitor electrode design." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/93063.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Thesis: Ph. D., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2014.
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 125-134).
Ultracapacitors are a class of electrochemical energy storage device that is gaining significant industrial traction due to their high charging rate and cycle life compared to rechargeable batteries; however, they store significantly less energy on a per-volume basis. The quest to find an electrode material that could bridge the gap between energy and power density in electrochemical storage devices has been the object of significant industrial and academic research efforts over the past two decades. One promising material, and the focus of this research, is a dense forest of vertically-aligned carbon nanotubes (CNTs). Previous work at MIT has projected that such structures could augment the energy density of ultracapacitors by a factor of five over existing packaged devices. This thesis is an investigation into the electrode fabrication techniques that approach this goal. Carbon nanotube forests are synthesized on thin tungsten substrates by chemical vapor deposition (CVD) to form porous, high-surface area electrodes. We demonstrate that the capacitance of CNT electrodes is very highly correlated to the morphological and geometrical features of the CNT forest. These features, such as areal density, mean nanotube diameter, and nanotube length, are shown to be tunable and a series of pre- and post-treatment steps are examined to achieve two specific goals: an increased electrode specific surface area (m²/cm³ ) and an improved differential capacitance ([mu]F/cm² of CNT surface). Substrates are prepared for CVD by depositing a thin sub-nanometer film of catalytically active material via magnetron sputtering. Electrodes we fabricated using this conventional technique did not exhibit a specific surface area large enough to provide the high capacitance required for energy-dense electrodes. Numerous enhancements to this "standard" procedure are explored, such as varying the material deposition rate and substrate temperature, adding reactive gases during deposition, and depositing multiple catalyst layers. A nearly 5x increase in specific surface area is achieved. Furthermore, the surface properties of as-grown CNTs are modified by exposure to reactive plasmas and other high-energy environments; these treatments result in over a 2 x increase in differential capacitance. Compounded, the fabrication methods explored in this thesis provide a nearly 10x performance increase over conventional CNT electrodes, with a demonstrated cell capacitance of 56 mF using two 1 cm² electrodes. Finally, some key arguments are presented that assess the commercial viability of CNT-based ultracapacitors.
by David P. Jenicek.
Ph. D.

9

Ho, Bryan Y. "An experimental study on the structure-property relationship of composite fluid electrodes for use in high energy density semi-solid flow cells." Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/101864.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Thesis: Ph. D., Massachusetts Institute of Technology, Department of Materials Science and Engineering, February 2012.
Cataloged from PDF version of thesis.
Includes bibliographical references.
A novel electrochemical energy storage device, the semi-solid flow cell (SSFC), has recently been demonstrated. The device features a complex fluid composite as its anode and cathode. Both electrodes incorporate particles of a lithium storage compound suspended in a carbon black electrolyte gel. This design of a mixed conductor gel host and electrochemically active filler allows for fluid electrodes to be pumped, from storage tanks, through reaction cells. The de-coupling of energy and power capacity in a high energy density device opens up new opportunities for low cost, high performance energy storage. This thesis explores the microstructure of these fluid composites and establishes links to macroscopic properties that determine the device's energy and power density, efficiency, and cycle life. The rapid agglomeration of colloidal carbon black aggregates leads to gelation by diffusion limited cluster aggregation. The low density, percolating network of carbon provides conduction paths for both ions and electrons. The gel's yield stress stably suspends density mismatched particles of lithium storage compounds, which can readily access the electrochemical reactants via the gel matrix. Application of shear reversibly destroys the gel network, allowing for flow. Flow-induced heterogeneities are also investigated and methods of maintaining macroscopic homogeneity are presented.
by Bryan Y. Ho.
Ph. D.

10

Krygier, Andrew. "On The Origin of Super-Hot Electrons in Intense Laser-Plasma Interactions." The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1365724528.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Більше джерел

Книги з теми "High energy density electrodes":

1

Klapötke, T. M., ed. High Energy Density Materials. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-72202-1.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

2

Drake, R. Paul. High-Energy-Density Physics. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-67711-8.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

3

Kyrala, George A. High energy density laboratory astrophysics. Dordrecht: Springer, 2005.

Знайти повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

4

Kyrala, G. A., ed. High Energy Density Laboratory Astrophysics. Dordrecht: Springer Netherlands, 2005. http://dx.doi.org/10.1007/1-4020-4162-4.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

5

Lebedev, Sergey V., ed. High Energy Density Laboratory Astrophysics. Dordrecht: Springer Netherlands, 2007. http://dx.doi.org/10.1007/978-1-4020-6055-7.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

6

Plewa, Tomasz, ed. High Energy Density Laboratory Astrophysics 2008. Dordrecht: Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-90-481-9999-0.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

7

Rapp, Douglas C. High energy-density liquid rocket fuel performance. [Cleveland, Ohio]: Lewis Research Center, 1990.

Знайти повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

8

Garbassi, F., and E. Occhiello, eds. High Energy Density Technologies in Materials Science. Dordrecht: Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-0499-6.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

9

Rapp, Douglas C. High energy-density liquid rocket fuel performance. [Cleveland, Ohio]: Lewis Research Center, 1990.

Знайти повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

10

Workshop on High Energy Density and High Power RF (7th 2005 Kalamata, Greece). High energy density and high power RF: 7th Workshop on High Energy Density and High Power RF, Kalamata, Greece, 13-17 June 2005. Edited by Abe David K and Nusinovich G. S. Melville, N.Y: American Institute of Physics, 2006.

Знайти повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Більше джерел

Частини книг з теми "High energy density electrodes":

1

Ramakrishna, B., P. A. Wilson, K. Quinn, L. Romagnani, M. Borghesi, A. Pipahl, O. Willi, et al. "Propagation of relativistic electrons in low density foam targets." In High Energy Density Laboratory Astrophysics 2008, 161–65. Dordrecht: Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-90-481-9999-0_28.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

2

Medvedev, Mikhail V. "Radiation of electrons in Weibel-generated fields: a general case." In High Energy Density Laboratory Astrophysics 2008, 147–50. Dordrecht: Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-90-481-9999-0_25.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

3

Drake, R. Paul. "Introduction to High-Energy-Density Physics." In High-Energy-Density Physics, 1–20. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-67711-8_1.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

4

Drake, R. Paul. "Magnetized Flows and Pulsed-Power Devices." In High-Energy-Density Physics, 435–81. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-67711-8_10.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

5

Drake, R. Paul. "Inertial Confinement Fusion." In High-Energy-Density Physics, 483–523. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-67711-8_11.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

6

Drake, R. Paul. "Experimental Astrophysics." In High-Energy-Density Physics, 525–66. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-67711-8_12.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

7

Drake, R. Paul. "Relativistic High-Energy-Density Systems." In High-Energy-Density Physics, 567–608. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-67711-8_13.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

8

Drake, R. Paul. "Descriptions of Fluids and Plasmas." In High-Energy-Density Physics, 21–49. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-67711-8_2.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

9

Drake, R. Paul. "Properties of High-Energy-Density Plasmas." In High-Energy-Density Physics, 51–114. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-67711-8_3.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

10

Drake, R. Paul. "Shocks and Rarefactions." In High-Energy-Density Physics, 115–81. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-67711-8_4.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Тези доповідей конференцій з теми "High energy density electrodes":

1

Fu, Hongli, Jianli Zhao, Jiasi Li, Yejun Liu, Zhaoyang Li, and Zhuohong Pan. "High-precision Calculation of Geographical Current Density of DC Grounding Electrodes." In 2019 IEEE 3rd Conference on Energy Internet and Energy System Integration (EI2). IEEE, 2019. http://dx.doi.org/10.1109/ei247390.2019.9061989.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

2

Miao, Y. "Prebunching Of Electrons In Harmonic-Multiplying Cluster-Cavity Gyro-Amplifiers." In HIGH ENERGY DENSITY AND HIGH POWER RF: 6th Workshop on High Energy Density and High Power RF. AIP, 2003. http://dx.doi.org/10.1063/1.1635149.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

3

Kominis, Y. "Dynamics and Output Momentum Spectrum of Electrons Under Harmonic Resonance in Gyrotron Resonators." In HIGH ENERGY DENSITY AND HIGH POWER RF: 7th Workshop on High Energy Density and High Power RF. AIP, 2006. http://dx.doi.org/10.1063/1.2158782.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

4

Parekh, Mihir, and Christopher Rahn. "Dendrite Suppression and Energy Density in Metal Batteries With Electrolyte Flow Through Perforated Electrodes." In ASME 2020 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/imece2020-23487.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Abstract Previous research shows that forced advection through porous lithium metal electrodes can eliminate dendrite growth in lithium metal batteries. In this paper, we study the effect of creeping electrolyte flow through perforated metal anodes on dendrite growth and energy density by using a 2D COMSOL Multiphysics model. The flowing electrolyte enhances plating inside the slot (2D model of pore) and reduces plating on the part of electrode directly facing the counter-electrode. This reduces the chances of short circuit via dendrite growth. Higher electrolyte velocity reduces the plating current density in the inter-slot gap and increases the amount of plating in the slot. Larger slot separation and thicker electrodes alleviate dendrite growth but lower the specific charge density. Wider slots enhance the possibility of short circuits and narrower slots may get plugged due to plating inside the hole. Thus, slot width, slot separation, and electrode thickness should be optimized to ensure high specific charge density and non-dendritic plating in the inter-slot gap.

5

Ogihara, Nobuhiro. "Novel electrochemical capacitors with high-energy density using intercalated metal-organic framework electrodes." In 2019 JSAE/SAE Powertrains, Fuels and Lubricants. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2019. http://dx.doi.org/10.4271/2019-01-2260.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

6

Gerasopoulos, K., E. Pomerantseva, A. Brown, C. Wang, J. Culver, M. McCarthy, and R. Ghodssi. "THREE-DIMENSIONAL HIERARCHICAL MICROBATTERY ELECTRODES FOR TUNABLE HIGH ENERGY AND POWER DENSITY BATTERIES." In 2012 Solid-State, Actuators, and Microsystems Workshop. San Diego: Transducer Research Foundation, 2012. http://dx.doi.org/10.31438/trf.hh2012.28.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

7

Mondragón-Rodríguez, G. C., and Bilge Saruhan. "Nanostructured metal-oxides for use as high power and energy density storage electrodes." In SPIE Sensing Technology + Applications, edited by Nibir K. Dhar, Palani Balaya, and Achyut K. Dutta. SPIE, 2014. http://dx.doi.org/10.1117/12.2053009.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

8

Li, Siwei, Xiaohong Wang, and Caiwei Shen. "High-energy-density on-chip supercapacitors using manganese dioxide-decorated direct-prototyped porous carbon electrodes." In 2014 IEEE 27th International Conference on Micro Electro Mechanical Systems (MEMS). IEEE, 2014. http://dx.doi.org/10.1109/memsys.2014.6765662.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

9

Ennis, J. B. "Recent developments in high energy density metallised electrode capacitor technology." In IEE Colloquium Pulsed Power '97. IEE, 1997. http://dx.doi.org/10.1049/ic:19970419.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

10

Fang, Xudong, and Donggang Yao. "An Overview of Solid-Like Electrolytes for Supercapacitors." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-64069.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Supercapacitors with an electric double-layer design have attracted great attention in the recent years because they are promising energy storage devices for a number of applications, particularly for portable electronics and electric automobiles. They utilize the interface between the electrode and the electrolyte to store energy, resulting in energy storage devices with high power density but low energy density compared to batteries. To improve the performance and reduce the cost, researchers have made significant progress in increasing energy density, electrode voltage, and cycle life. The increase of the energy density is considered to be achieved mainly by increasing the effective specific interface between the electrodes and the electrolyte. Various electrodes with porous structure have been attempted to increase the specific surface area. The increase of electrode voltage is realized primarily via the change of liquid electrolytes to gel, solid and composite ones. In this overview, they are summarized as solid-like electrolytes. This paper reviews the materials adopted and the processing methods developed for solid-like electrolytes, as well as the general characteristics of supercapacitors employing such electrolytes.

Звіти організацій з теми "High energy density electrodes":

1

Amatucci, Glenn, Kimberly Scott, Nathalie Pereira, and Anna Halajko. Self-Forming Thin Interphases and Electrodes Enabling 3-D Structured High Energy Density Batteries. Office of Scientific and Technical Information (OSTI), December 2019. http://dx.doi.org/10.2172/1580651.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

2

Bomberger, David, Jeffrey C. Bottaro, Mark Petrie, Paul E. Penwell, and Allen L. Dodge. High Energy Density Materials. Fort Belvoir, VA: Defense Technical Information Center, September 2003. http://dx.doi.org/10.21236/ada417725.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

3

Haiges, Ralf, Stefan Schneider, Thorsten Schroer, and Karl O. Christe. High Energy Density Materials. Fort Belvoir, VA: Defense Technical Information Center, March 2004. http://dx.doi.org/10.21236/ada422681.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

4

Whittingham, M. Stanley. High Energy Density Lithium Battery. Office of Scientific and Technical Information (OSTI), October 2018. http://dx.doi.org/10.2172/1475189.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

5

GENERAL ATOMICS SAN DIEGO CA. High Energy Density Cryogenic Capacitors. Fort Belvoir, VA: Defense Technical Information Center, July 2006. http://dx.doi.org/10.21236/ada454866.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

6

Christe, Karl O. High Energy Density Material Chemistry. Fort Belvoir, VA: Defense Technical Information Center, November 2006. http://dx.doi.org/10.21236/ada463493.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

7

Wootton, Alan. Institute for High Energy Density Science. Office of Scientific and Technical Information (OSTI), January 2017. http://dx.doi.org/10.2172/1339089.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

8

Boufelfel, Ali. High Energy Density Polymer Film Capacitors. Fort Belvoir, VA: Defense Technical Information Center, October 2006. http://dx.doi.org/10.21236/ada459821.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

9

Virkar, Anil V. LOW-TEMPERATURE, ANODE-SUPPORTED HIGH POWER DENSITY SOLID OXIDE FUEL CELLS WITH NANOSTRUCTURED ELECTRODES. Office of Scientific and Technical Information (OSTI), April 2000. http://dx.doi.org/10.2172/788101.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

10

Prof. Anil V. Virkar. LOW-TEMPERATURE, ANODE-SUPPORTED HIGH POWER DENSITY SOLID OXIDE FUEL CELLS WITH NANOSTRUCTURED ELECTRODES. Office of Scientific and Technical Information (OSTI), April 2000. http://dx.doi.org/10.2172/784599.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.