Designing current collector/composite electrode interfacial structure of organic radical battery

A fast and reversible charge storage capability was established for the radical polyether/SWCNT composite layer with a large layer thickness of several tens of micrometres despite the low SWCNT content of 10%.

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Fabricating a flexible super capacitor prototype based on nano - composite electrode and polymer electrolyte

Science and Technology Development Journal ◽

10.32508/stdj.v19i4.683 ◽

2016 ◽

Vol 19 (4) ◽

pp. 195-201

Author(s):

Dao Thi Anh Luong ◽

Quyet Huu Do

Keyword(s):

High Power ◽

Composite Electrode ◽

Current Collector ◽

High Energy ◽

High Energy Density ◽

Metal Foil ◽

Super Capacitor ◽

Nano Composite ◽

Compact Size ◽

Super Capacitors

Super capacitor is an important device for energy storage and usage with high power and high efficiency. Commercial super capacitors are typically fabricated by using binder to attach electrode powder to the metal foil current collector. In this paper, we present a method to fabricate super capacitors using binder-free electrodes and carbon current collector to enhance the compact size, light weight and flexibility. To obtain high power and high energy density, nano composite electrode of CNTs-polyaniline was employed. The super capacitors with PVA electrolyte achieved the electrode capacitance of 170 F/g and charged voltage can be up to 1.2 volt, which is the maximum voltage achieved by aqueous PVA electrolyte.

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Electrical and Electrochemical Properties of La2–xCaxNiO4+δ and La2–xCaxNiO4+δ–Ce0.8Sm0.2O1.9 Cathode Materials for Intermediate Temperature SOFCs

Advances in Science and Technology ◽

10.4028/www.scientific.net/ast.93.25 ◽

2014 ◽

Vol 93 ◽

pp. 25-30 ◽

Cited By ~ 3

Author(s):

Elena Yurievna Pikalova ◽

Alexander Anatolievich Kolchugin ◽

Nina Mihailovna Bogdanovich ◽

Dimitry Igorevich Bronin

Keyword(s):

Electrical Properties ◽

Impedance Spectroscopy ◽

Electrochemical Performance ◽

Cathode Materials ◽

Polarization Resistance ◽

Composite Electrode ◽

Sintering Temperature ◽

Current Collector ◽

Different Content ◽

Resistance Value

The present work focuses on the electrical properties of La2–xCaxNiO4+δ (x=0–0.4) and the electrochemical performance of the cathodes based on these materials with a LаNi0.6Fe0.4O3-δ current collector in contact with a Ce0.8Sm0.2O1.9 electrolyte. The effect of the sintering temperature on the polarization resistance of La1.7Ca0.3NiO4+δ–Ce0.8Sm0.2O1.9 composites of different content has been studied by an impedance spectroscopy method. The composite electrode 50 wt.% La1.7Ca0.3NiO4+δ – 50 wt.% Ce0.8Sm0.2O1.9 sintered at the temperature below 1300°C has showed the lowest polarization resistance value equal to 0.27 Ωcm2 and in case of PrOx infiltration 0.033 Ωcm2 at 800°C in air.

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Ni foam as the current collector for high capacity C–Si composite electrode

Journal of Power Sources ◽

10.1016/j.jpowsour.2012.02.020 ◽

2012 ◽

Vol 208 ◽

pp. 46-51 ◽

Cited By ~ 36

Author(s):

Qina Sa ◽

Yan Wang

Keyword(s):

Composite Electrode ◽

High Capacity ◽

Current Collector ◽

Ni Foam

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Three-Dimensional Porous Carbon Nanotube Papers as Current Collector and Buffer for SnO2 Anodes

NANO ◽

10.1142/s1793292017501417 ◽

2017 ◽

Vol 12 (11) ◽

pp. 1750141 ◽

Cited By ~ 1

Author(s):

Xiaogang Sun ◽

Zhiwen Qiu ◽

Long Chen ◽

Manyuan Cai ◽

Jie Wang ◽

...

Keyword(s):

Electron Microscopy ◽

Anode Materials ◽

Composite Electrode ◽

Three Dimensional ◽

Current Collector ◽

Discharge Process ◽

Composite Anode ◽

Transmission Electron ◽

Multi Walled Carbon Nanotubes ◽

Walled Carbon Nanotubes

A novel three-dimensional porous conductive papers have been successfully synthesized via a simple physical route. Multi-walled carbon nanotubes (MWCNTs)@SnO2 composite anode materials are embedded in porous conductive papers. The peculiar structure can accommodate the huge volume expansion of MWCNTs@SnO2 composite anode materials during charge–discharge process. The framework formed by MWCNTs and cellulose can greatly improve the strength, stability and flexibility of the electrode. In addition, the structure successfully prevent the aggregation of SnO2 nanoparticles and collapse of MWCNTs@SnO2 composite electrode, leading to the improvement in electrochemical utilization and stable cyclability. The samples were characterized by X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM), respectively. The electrochemical properties and application were evaluated by galvanostatic discharge–charge testing and cycling voltammetry. As a result, the MWCNTs@SnO2 composite electrode showed excellent rate performance. The discharge capacity remains about 680[Formula: see text]mAh g[Formula: see text] after 100 cycles at 200[Formula: see text]mA g[Formula: see text], and even around 300[Formula: see text]mAh g[Formula: see text] at 1000[Formula: see text]mA g[Formula: see text].

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Nitroxide radical polymer/carbon-nanotube-array electrodes with improved C-rate performance in organic radical batteries

RSC Advances ◽

10.1039/c5ra03680a ◽

2015 ◽

Vol 5 (42) ◽

pp. 33044-33048 ◽

Cited By ~ 18

Author(s):

Chun-Hao Lin ◽

Jyh-Tsung Lee ◽

Dong-Rong Yang ◽

Hsiu-Wei Chen ◽

Shao-Tzu Wu

Keyword(s):

Carbon Nanotubes ◽

Electron Transfer ◽

Nitroxide Radical ◽

Current Collector ◽

Organic Radical ◽

Rate Performance ◽

Transfer Resistance ◽

Nanotube Array ◽

Carbon Nanotube Array ◽

Electron Transfer Resistance

The intimate connection between carbon nanotubes and the current collector reduces electron-transfer resistance of the cathode and enhances the C-rate performance of the batteries.

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