Facile synthesis of nickel network supported three-dimensional graphene gel as a lightweight and binder-free electrode for high rate performance supercapacitor application

Nanoscale ◽  
2014 ◽  
Vol 6 (4) ◽  
pp. 2426-2433 ◽  
Author(s):  
Haifu Huang ◽  
Lianqiang Xu ◽  
Yanmei Tang ◽  
Shaolong Tang ◽  
Youwei Du

A Ni network supported 3d graphene electrode was synthesized by a nickel etching process, and exhibited high rate capability for supercapacitor applications.

Nanoscale ◽  
2014 ◽  
Vol 6 (11) ◽  
pp. 5746-5753 ◽  
Author(s):  
Kai Xi ◽  
Piran R. Kidambi ◽  
Renjie Chen ◽  
Chenlong Gao ◽  
Xiaoyu Peng ◽  
...  

A novel ultra-lightweight 3-D Li-S battery cathode has been synthesised by loading sulphur on to an interconnected 3-D network of few-layered graphene. The battery shows high rate discharge capacity retention for up to 400 cycles.


2021 ◽  
Vol 869 ◽  
pp. 159279 ◽  
Author(s):  
Zhenzhen Liu ◽  
Wanhai Zhou ◽  
Jian He ◽  
Hui Chen ◽  
Ruixue Zhang ◽  
...  

Energies ◽  
2020 ◽  
Vol 13 (7) ◽  
pp. 1602 ◽  
Author(s):  
Jun-Ping Hu ◽  
Hang Sheng ◽  
Qi Deng ◽  
Qiang Ma ◽  
Jun Liu ◽  
...  

LiNixCoyMnzO2 (LNCM)-layered materials are considered the most promising cathode for high-energy lithium ion batteries, but suffer from poor rate capability and short lifecycle. In addition, the LiNi1/3Co1/3Mn1/3O2 (NCM 111) is considered one of the most widely used LNCM cathodes because of its high energy density and good safety. Herein, a kind of NCM 111 with semi-closed structure was designed by controlling the amount of urea, which possesses high rate capability and long lifespan, exhibiting 140.9 mAh·g−1 at 0.85 A·g−1 and 114.3 mAh·g−1 at 1.70 A·g−1, respectively. The semi-closed structure is conducive to the infiltration of electrolytes and fast lithium ion-transfer inside the electrode material, thus improving the rate performance of the battery. Our work may provide an effective strategy for designing layered-cathode materials with high rate capability.


RSC Advances ◽  
2016 ◽  
Vol 6 (23) ◽  
pp. 19522-19530 ◽  
Author(s):  
Xiangyang Zhou ◽  
Tao Bai ◽  
Feng Chen ◽  
JingJing Tang ◽  
Qunchao Liao ◽  
...  

MnOx nanoparticles sandwiched between nitrogen-doped carbon plates architecture (C/MnOx/C) has been successfully synthesized via a step-by-step strategy.


2016 ◽  
Vol 9 (23) ◽  
pp. 19446-19454 ◽  
Author(s):  
Debdyuti Mukherjee ◽  
Guruprasada Gowda Y. K ◽  
Harish Makri Nimbegondi Kotresh ◽  
S. Sampath

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