Porous CuO@C composite as high-performance anode materials for lithium-ion batteries

2020 ◽  
Vol 49 (33) ◽  
pp. 11597-11604 ◽  
Author(s):  
Yang Xu ◽  
Kainian Chu ◽  
Zhiqiang Li ◽  
Shikai Xu ◽  
Ge Yao ◽  
...  

The in situ formation of a carbon matrix can confine the growth of CuO nanoparticles, which can provide more exposed active sites for electrochemical reactions.

Nanoscale ◽  
2019 ◽  
Vol 11 (28) ◽  
pp. 13343-13353 ◽  
Author(s):  
Xing Li ◽  
Jiatian Fu ◽  
Yuping Sun ◽  
Mei Sun ◽  
Shaobo Cheng ◽  
...  

Electrochemical properties of core/branch-structured VS2 nanosheets@CNTs and the in situ investigation of the corresponding dynamic structural evolutions.


2019 ◽  
Vol 4 (46) ◽  
pp. 13569-13575
Author(s):  
Zhimiao Li ◽  
Yunlong Xu ◽  
Yue Chen ◽  
Wei Zhang ◽  
Keqiang Li ◽  
...  

2015 ◽  
Vol 44 (10) ◽  
pp. 4594-4600 ◽  
Author(s):  
Yao Li ◽  
Qing Meng ◽  
Shen-min Zhu ◽  
Zeng-hui Sun ◽  
Hao Yang ◽  
...  

A Fe/Fe3O4/N-carbon composite consisting of a porous carbon matrix containing a highly conductive N-doped graphene-like network and Fe/Fe3O4 nanoparticles was prepared.


Energies ◽  
2020 ◽  
Vol 13 (4) ◽  
pp. 827 ◽  
Author(s):  
Ying Liu ◽  
Xueying Li ◽  
Anupriya K. Haridas ◽  
Yuanzheng Sun ◽  
Jungwon Heo ◽  
...  

Lithium ion (Li-ion) batteries have been widely applied to portable electronic devices and hybrid vehicles. In order to further enhance performance, the search for advanced anode materials to meet the growing demand for high-performance Li-ion batteries is significant. Fe3C as an anode material can contribute more capacity than its theoretical one due to the pseudocapacity on the interface. However, the traditional synthetic methods need harsh conditions, such as high temperature and hazardous and expensive chemical precursors. In this study, a graphitic carbon encapsulated Fe/Fe3C (denoted as Fe/Fe3C@GC) composite was synthesized as an anode active material for high-performance lithium ion batteries by a simple and cost-effective approach through co-pyrolysis of biomass and iron precursor. The graphitic carbon shell formed by the carbonization of sawdust can improve the electrical conductivity and accommodate volume expansion during discharging. The porous microstructure of the shell can also provide increased active sites for the redox reactions. The in-situ-formed Fe/Fe3C nanoparticles show pseudocapacitive behavior that increases the capacity. The composite exhibits a high reversible capacity and excellent rate performance. The composite delivered a high initial discharge capacity of 1027 mAh g−1 at 45 mA g−1 and maintained a reversible capacity of 302 mAh g−1 at 200 mA g−1 after 200 cycles. Even at the high current density of 5000 mA g−1, the Fe/Fe3C@GC cell also shows a stable cycling performance. Therefore, Fe/Fe3C@GC composite is considered as one of the potential anode materials for lithium ion batteries.


2018 ◽  
Vol 5 (4) ◽  
pp. 932-938 ◽  
Author(s):  
Haocheng Yuan ◽  
Yuqiang Jin ◽  
Jinle Lan ◽  
Yuan Liu ◽  
Yunhua Yu ◽  
...  

A new ternary composite for high-performance and binder-free anode materials for lithium-ion batteries.


2019 ◽  
Vol 7 (27) ◽  
pp. 16541-16552 ◽  
Author(s):  
Xuefang Xie ◽  
Yang Hu ◽  
Guozhao Fang ◽  
Xinxin Cao ◽  
Bo Yin ◽  
...  

In situ formed hierarchical FeS nanosheets supported by a TiO2/C fibrous backbone exhibit higher rate capability and cycling stability as anode materials for lithium ion batteries.


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