Mesoporous Co-Mo-S nanosheet networks as cathode materials for flexible electrochemical capacitors

CrystEngComm ◽  
2021 ◽  
Author(s):  
Yuchen Sun ◽  
Xiaowei Wang ◽  
Weichao Zhang ◽  
Xiang Wu
Keyword(s):  
Cathode Materials ◽  
Electrochemical Capacitors ◽  
Cycling Stability ◽  
Electrochemical Activity ◽  
The Poor ◽  
High Theoretical Capacity ◽  
Excellent Cycling Stability

Molybdenum-based oxides possess high theoretical capacity and excellent cycling stability. However, the poor conductivity limits their wide applications. A simple vulcanization strategy can be employed to improve their electrochemical activity....

NiCo2O4@NiO hybrid arrays with improved electrochemical performance for pseudocapacitors

2015 ◽  
Vol 3 (26) ◽  
pp. 13900-13905 ◽  
Author(s):  
Xijun Liu ◽  
Junfeng Liu ◽  
Xiaoming Sun
Keyword(s):  
Electrochemical Performance ◽  
Electrochemical Capacitors ◽  
High Capacity ◽  
Cycling Stability ◽  
Hierarchical Architecture ◽  
Excellent Cycling Stability

A novel hierarchical NiCo2O4@NiO array is developed for electrochemical capacitors. Such a 3D hybrid electrode exhibits high capacity and excellent cycling stability. The enhanced performance could be attributed to the synergetic contribution of the composite and unique hierarchical architecture.

Li9V3(P2O7)3(PO4)2 nanotubes fabricated by a simple molten salt approach with excellent cycling stability and enhanced rate capability in lithium-ion batteries

RSC Advances ◽  
2015 ◽  
Vol 5 (1) ◽  
pp. 243-247 ◽  
Author(s):  
Xue Miao ◽  
Chun Li ◽  
Wei Chu ◽  
Ping Wu ◽  
Dong Ge Tong
Keyword(s):  
Molten Salt ◽  
Lithium Ion Batteries ◽  
Cathode Materials ◽  
Rate Capability ◽  
Lithium Ion ◽  
Cycling Stability ◽  
Excellent Cycling Stability

Li9V3(P2O7)3(PO4)2 nanotubes exhibited excellent cycling stability in addition to enhanced rate capability as cathode materials for lithium-ion batteries.

Preparation and electrochemical properties of double-shell LiNi0.5Mn1.5O4 hollow microspheres as cathode materials for Li-ion batteries

RSC Advances ◽  
2016 ◽  
Vol 6 (51) ◽  
pp. 45369-45375 ◽  
Author(s):  
SiXu Deng ◽  
DuoLu Mao ◽  
Hao Wang ◽  
Bo Wang ◽  
JingBing Liu ◽  
...  
Keyword(s):  
Electrochemical Properties ◽  
Molten Salt ◽  
Cathode Materials ◽  
Cycling Stability ◽  
Hollow Microspheres ◽  
Li Ion Batteries ◽  
Li Ion ◽  
Excellent Cycling Stability ◽  
Annealing Method

Double shell LiNi0.5Mn1.5O4 have been synthesized via a molten salt and annealing method with excellent cycling stability as cathode materials.

A biomimetic Setaria viridis-inspired electrode with polyaniline nanowire arrays aligned on MoO3@polypyrrole core–shell nanobelts

2018 ◽  
Vol 6 (27) ◽  
pp. 13428-13437 ◽  
Author(s):  
Ying Liu ◽  
Le Li ◽  
Jixin Zhu ◽  
Jingsan Xu ◽  
Siliang Liu ◽  
...  
Keyword(s):  
Cycling Stability ◽  
Electrochemical Activity ◽  
Nanowire Arrays ◽  
Core Shell ◽  
Setaria Viridis ◽  
High Capacitance ◽  
Excellent Cycling Stability

Benefiting from the structural superiority achieved by mimicking Setaria viridis, the resultant MoO3/PPy/PANI electrodes exhibit enhanced electrochemical activity including high capacitance and excellent cycling stability for supercapacitors.

An aqueous rechargeable lithium ion battery with long cycle life and overcharge self-protection

2021 ◽  
Author(s):  
Zhiguo Hou ◽  
Lei Zhang ◽  
Jianwu Chen ◽  
Yali Xiong ◽  
Xueqian Zhang ◽  
...  
Keyword(s):  
Lithium Ion Battery ◽  
Lithium Ion ◽  
Cycling Stability ◽  
Cycle Life ◽  
Long Cycle ◽  
Full Cell ◽  
Long Cycle Life ◽  
Excellent Cycling Stability ◽  
Self Protection

Zn2+ added into electrolyte can effectively suppress H2 evolution. Therefore, a LiMn2O4/NaTi2(PO4)3 full cell exhibits enhanced overcharging performance and excellent cycling stability up to 10 000 cycles.

scholarly journals Na0.76V6O15/Activated Carbon Hybrid Cathode for High-Performance Lithium-Ion Capacitors

Materials ◽  
2020 ◽  
Vol 14 (1) ◽  
pp. 122
Author(s):  
Renwei Lu ◽  
Xiaolong Ren ◽  
Chong Wang ◽  
Changzhen Zhan ◽  
Ding Nan ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Energy Density ◽  
Power Density ◽  
Cathode Materials ◽  
Low Cost ◽  
Lithium Ion ◽  
High Energy ◽  
Cycling Stability ◽  
High Energy Density ◽  
Artificial Graphite

Lithium-ion hybrid capacitors (LICs) are regarded as one of the most promising next generation energy storage devices. Commercial activated carbon materials with low cost and excellent cycling stability are widely used as cathode materials for LICs, however, their low energy density remains a significant challenge for the practical applications of LICs. Herein, Na0.76V6O15 nanobelts (NaVO) were prepared and combined with commercial activated carbon YP50D to form hybrid cathode materials. Credit to the synergism of its capacitive effect and diffusion-controlled faradaic effect, NaVO/C hybrid cathode displays both superior cyclability and enhanced capacity. LICs were assembled with the as-prepared NaVO/C hybrid cathode and artificial graphite anode which was pre-lithiated. Furthermore, 10-NaVO/C//AG LIC delivers a high energy density of 118.9 Wh kg−1 at a power density of 220.6 W kg−1 and retains 43.7 Wh kg−1 even at a high power density of 21,793.0 W kg−1. The LIC can also maintain long-term cycling stability with capacitance retention of approximately 70% after 5000 cycles at 1 A g−1. Accordingly, hybrid cathodes composed of commercial activated carbon and a small amount of high energy battery-type materials are expected to be a candidate for low-cost advanced LICs with both high energy density and power density.

Boosting Cycling Stability of Ni-rich Layered Oxide Cathode by Dry Coating of Ultrastable Li3V2(PO4)3 Nanoparticles

Nanoscale ◽  
2021 ◽  
Author(s):  
Dongdong Wang ◽  
Qizhang Yan ◽  
Mingqian Li ◽  
Hongpeng Gao ◽  
Jianhua Tian ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Cathode Materials ◽  
Lithium Ion ◽  
High Energy ◽  
Cycling Stability ◽  
Next Generation ◽  
Layered Oxides ◽  
Dry Coating ◽  
Layered Oxide ◽  
Oxide Cathode

Nickel (Ni)-rich layered oxides such as LiNi0.6Co0.2Mn0.2O2 (NCM622) represent one of the most promising candidates for the next-generation high-energy lithium-ion batteries (LIBs). However, the pristine Ni-rich cathode materials usually suffer...

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