Three-dimensional interconnected network GeOx/multi-walled CNT composite spheres as high-performance anodes for lithium ion batteries

2015 ◽  
Vol 3 (38) ◽  
pp. 19393-19401 ◽  
Author(s):  
Wei He ◽  
Huajun Tian ◽  
Xiaoliang Wang ◽  
Fengxia Xin ◽  
Weiqiang Han

3D GeOx/MWCNTs composite spheres as anode exhibited high rate capability and long-life performances with high areal loading for lithium ion batteries.

Nanoscale ◽  
2018 ◽  
Vol 10 (37) ◽  
pp. 17435-17455 ◽  
Author(s):  
Shiyuan Zhou ◽  
Tao Mei ◽  
Xianbao Wang ◽  
Yitai Qian

The rational design of crystal planes with express channels is an effective approach to develop the high-performance cathodes for lithium ion batteries.


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.


2015 ◽  
Vol 3 (9) ◽  
pp. 5054-5059 ◽  
Author(s):  
Chang Yu ◽  
Meng Chen ◽  
Xiaoju Li ◽  
Changtai Zhao ◽  
Lianlong He ◽  
...  

Hierarchically porous carbon architectures composed of a micro-sized porous carbon sphere matrix embedded with hollow nanocapsules are configured, demonstrating a large capacity and an ultra-high rate capability in lithium ion batteries.


2016 ◽  
Vol 4 (20) ◽  
pp. 7585-7590 ◽  
Author(s):  
Kaifu Huo ◽  
Lei Wang ◽  
Changjian Peng ◽  
Xiang Peng ◽  
Yuanyuan Li ◽  
...  

Peapod-like Ge/CNx is designed as a high-performance anode for lithium-ion batteries, which boasts high capacity, excellent cyclability and rate capability.


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