High Performance Electrodes for All-Solid-State Supercapacitor Prepared by Using E-Jet Deposition Technique

Electrohydrodynamic jet (E-jet) deposition technique was used to prepare thin film porous electrodes for all-solid-state electrochemical supercapacitors. The performance of thin film graphene/PANI electrodes separately prepared by E-jet deposition and brush-coating were comparatively studied in supercapacitors. Results show that the specific capacitance of the supercapacitor by E-jet deposition can reach 228F·g-1 at 0.5A·g-1and remain 92% after 1000 charge-discharge cycles. Compared to those electrodes made by traditional brush coating techniques, the capacitance and cycling stability of the supercapacitors in this work were respectively increased by 11% and 7%, means that E-jet deposition can be an ideal technique for fabrication of high performance supercapacitor electrodes.

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Ensemble Design of Electrode–Electrolyte Interfaces: Toward High-Performance Thin-Film All-Solid-State Li–Metal Batteries

ACS Nano ◽

10.1021/acsnano.0c08691 ◽

2021 ◽

Vol 15 (3) ◽

pp. 4561-4575

Author(s):

Cheng-Fan Xiao ◽

Jong Heon Kim ◽

Su-Ho Cho ◽

Yun Chang Park ◽

Min Jung Kim ◽

...

Keyword(s):

Thin Film ◽

Solid State ◽

High Performance

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Fabrication of Hierarchical NiMoO4/NiMoO4 Nanoflowers on Highly Conductive Flexible Nickel Foam Substrate as a Capacitive Electrode Material for Supercapacitors with Enhanced Electrochemical Performance

Energies ◽

10.3390/en12061143 ◽

2019 ◽

Vol 12 (6) ◽

pp. 1143 ◽

Cited By ~ 6

Author(s):

Anil Yedluri ◽

Tarugu Anitha ◽

Hee-Je Kim

Keyword(s):

Energy Density ◽

Electrochemical Performance ◽

Specific Capacitance ◽

Electrode Material ◽

High Performance ◽

Nickel Foam ◽

High Specific Capacitance ◽

High Energy ◽

High Energy Density ◽

Charge Discharge

Hierarchical NiMoO4/NiMoO4 nanoflowers were fabricated on highly conductive flexible nickel foam (NF) substrates using a facile hydrothermal method to achieve rapid charge-discharge ability, high energy density, long cycling lifespan, and higher flexibility for high-performance supercapacitor electrode materials. The synthesized composite electrode material, NF/NiMoO4/NiMoO4 with a nanoball-like NF/NiMoO4 structure on a NiMoO4 surface over a NF substrate, formed a three-dimensional interconnected porous network for high-performance electrodes. The novel NF/NiMoO4/NiMoO4 nanoflowers not only enhanced the large surface area and increased the electrochemical activity, but also provided an enhanced rapid ion diffusion path and reduced the charge transfer resistance of the entire electrode effectively. The NF/NiMoO4/NiMoO4 composite exhibited significantly improved supercapacitor performance in terms of a sustained cycling life, high specific capacitance, rapid charge-discharge capability, high energy density, and good rate capability. Electrochemical analysis of the NF/NiMoO4/NiMoO4 nanoflowers fabricated on the NF substrate revealed ultra-high electrochemical performance with a high specific capacitance of 2121 F g−1 at 12 mA g−1 in a 3 M KOH electrolyte and 98.7% capacitance retention after 3000 cycles at 14 mA g−1. This performance was superior to the NF/NiMoO4 nanoball electrode (1672 F g−1 at 12 mA g−1 and capacitance retention 93.4% cycles). Most importantly, the SC (NF/NiMoO4/NiMoO4) device displayed a maximum energy density of 47.13 W h kg−1, which was significantly higher than that of NF/NiMoO4 (37.1 W h kg−1). Overall, the NF/NiMoO4/NiMoO4 composite is a suitable material for supercapacitor applications.

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Solid-State Thin-Film Supercapacitors with Ultrafast Charge/Discharge Based on N-Doped-Carbon-Tubes/Au-Nanoparticles-Doped-MnO2 Nanocomposites

Nano Letters ◽

10.1021/acs.nanolett.5b02489 ◽

2015 ◽

Vol 16 (1) ◽

pp. 40-47 ◽

Cited By ~ 123

Author(s):

Qiying Lv ◽

Shang Wang ◽

Hongyu Sun ◽

Jun Luo ◽

Jian Xiao ◽

...

Keyword(s):

Thin Film ◽

Solid State ◽

Au Nanoparticles ◽

Charge Discharge

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Construction of novel nanocomposite ZnO@CoFe2O4 microspheres grown on nickel foam for high performance electrochemical supercapacitors

Analytical Methods ◽

10.1039/c7ay02176c ◽

2018 ◽

Vol 10 (2) ◽

pp. 223-229 ◽

Cited By ~ 8

Author(s):

Araveeti Eswar Reddy ◽

Tarugu Anitha ◽

Chandu V. V. Muralee Gopi ◽

S. Srinivasa Rao ◽

Bandari Naresh ◽

...

Keyword(s):

Specific Capacitance ◽

High Performance ◽

Composite Electrode ◽

Nickel Foam ◽

Cycling Stability ◽

Electrochemical Supercapacitors

A ZnO@CoFe2O4 composite electrode exhibits superior specific capacitance and cycling stability than a CoFe2O4 electrode.

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Твердотельный литий-ионный аккумулятор: структура, технология и характеристики

Письма в журнал технической физики ◽

10.21883/pjtf.2020.05.49101.18083 ◽

2020 ◽

Vol 46 (5) ◽

pp. 15

Author(s):

А.С. Рудый ◽

А.А. Мироненко ◽

В.В. Наумов ◽

А.М. Скундин ◽

Т.Л. Кулова ◽

...

Keyword(s):

Thin Film ◽

Solid State ◽

Fermi Level ◽

Lithium Ion Batteries ◽

Lithium Ion Battery ◽

Lithium Ion ◽

Test Results ◽

Lithium Ions ◽

Discharge Characteristics ◽

Charge Discharge

The design description and test results of an all solid-state thin-film lithium-ion battery are provided. It is shown that the features of its charge-discharge characteristics are associated with a change in the Fermi level of the electrodes and are caused by a change in the concentration of lithium ions in the course of the charge-discharge. The specific capacitive characteristics of the layout are determined, which are comparable with the characteristics of industrial solid-state lithium-ion batteries.

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