Enhanced cyclability of amorphous carbon-coated SnO2-graphene composite as anode for Li-ion batteries

2014 ◽  
Vol 147 ◽  
pp. 596-602 ◽  
Author(s):  
Xiaoxiao Lu ◽  
Fan Yang ◽  
Xin Geng ◽  
Ping Xiao
2011 ◽  
Vol 1 (2) ◽  
pp. 212-220 ◽  
Author(s):  
Md. Mokhlesur Rahman ◽  
Jia-Zhao Wang ◽  
Mohd Faiz Hassan ◽  
David Wexler ◽  
Hua Kun Liu

Author(s):  
Hui Chang ◽  
Ying Li ◽  
Zi-Kui Fang ◽  
Jin-Peng Qu ◽  
Yan-Rong Zhu ◽  
...  

Molecules ◽  
2021 ◽  
Vol 26 (15) ◽  
pp. 4531
Author(s):  
Mihaela-Ramona Buga ◽  
Adnana Alina Spinu-Zaulet ◽  
Cosmin Giorgian Ungureanu ◽  
Raul-Augustin Mitran ◽  
Eugeniu Vasile ◽  
...  

Porous silica-based materials are a promising alternative to graphite anodes for Li-ion batteries due to their high theoretical capacity, low discharge potential similar to pure silicon, superior cycling stability compared to silicon, abundance, and environmental friendliness. However, several challenges prevent the practical application of silica anodes, such as low coulombic efficiency and irreversible capacity losses during cycling. The main strategy to tackle the challenges of silica as an anode material has been developed to prepare carbon-coated SiO2 composites by carbonization in argon atmosphere. A facile and eco-friendly method of preparing carbon-coated SiO2 composites using sucrose is reported herein. The carbon-coated SiO2 composites were characterized using X-ray diffraction, X-ray photoelectron spectroscopy, thermogravimetry, transmission and scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy, cyclic voltammetry, and charge–discharge cycling. A C/SiO2-0.085 M calendered electrode displays the best cycling stability, capacity of 714.3 mAh·g−1, and coulombic efficiency as well as the lowest charge transfer resistance over 200 cycles without electrode degradation. The electrochemical performance improvement could be attributed to the positive effect of the carbon thin layer that can effectively diminish interfacial impedance.


Carbon ◽  
2013 ◽  
Vol 65 ◽  
pp. 97-104 ◽  
Author(s):  
Wenbo Yue ◽  
Shanshan Tao ◽  
Jianmei Fu ◽  
Ziqi Gao ◽  
Yu Ren

RSC Advances ◽  
2017 ◽  
Vol 7 (5) ◽  
pp. 2637-2643 ◽  
Author(s):  
Lili Liu ◽  
Lihui Mou ◽  
Jia Yu ◽  
Shimou Chen

Urchin-like microspheres consisting of radial carbon-coated cobalt monoxide nanowires are designed, to fabricate a micro/nano hierarchical structure for efficient Li-storage.


2015 ◽  
Vol 153 ◽  
pp. 523-530 ◽  
Author(s):  
Riguo Mei ◽  
Yanfeng Yang ◽  
Xiaorui Song ◽  
Zhenguo An ◽  
Jingjie Zhang

RSC Advances ◽  
2017 ◽  
Vol 7 (47) ◽  
pp. 29821-29826 ◽  
Author(s):  
Renhui Zhang ◽  
Juan Zhao ◽  
Lei Guo ◽  
Hangdao Qin ◽  
Wei Shi ◽  
...  

In this investigation, we studied the effect of the synergistic mechanism on the stability and the electronic and Li diffusion performance of a β-MnO2 and graphene composite.


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