scholarly journals Enhancement of Electrochemical Stability about Silicon/Carbon Composite Anode Materials for Lithium Ion Batteries

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Wei Xiao ◽  
Chang Miao ◽  
Xuemin Yan ◽  
Qing Sun ◽  
Ping Mei

Silicon/carbon (Si/C) composite anode materials are successfully synthesized by mechanical ball milling followed by pyrolysis method. The structure and morphology of the composite are characterized by X-ray diffraction and scanning electron microscopy and transmission electron microscope, respectively. The results show that the composite is composed of Si, flake graphite, and phenolic resin-pyrolyzed carbon, and Si and flake graphite are enwrapped by phenolic resin-pyrolyzed carbon, which can provide not only a good buffering matrix but also a conductive network. The Si/C composite also shows good electrochemical stability, in which the composite anode material exhibits a high initial charge capacity of 805.3 mAh g−1at 100 mA g−1and it can still deliver a high charge capacity of 791.7 mAh g−1when the current density increases to 500 mA g−1. The results indicate that it could be used as a promising anode material for lithium ion batteries.

2009 ◽  
Vol 189 (1) ◽  
pp. 16-21 ◽  
Author(s):  
Zhaojun Luo ◽  
Dongdong Fan ◽  
Xianlong Liu ◽  
Huanyu Mao ◽  
Caifang Yao ◽  
...  

2016 ◽  
Vol 168 ◽  
pp. 138-142 ◽  
Author(s):  
Yu Zhou ◽  
Huajun Guo ◽  
Yong Yang ◽  
Zhixing Wang ◽  
Xinhai Li ◽  
...  

2017 ◽  
Vol 4 (12) ◽  
pp. 1996-2004 ◽  
Author(s):  
Yankai Li ◽  
Zhi Long ◽  
Pengyuan Xu ◽  
Yang Sun ◽  
Kai Song ◽  
...  

A novel silicon–carbon composite with a 3D pore-nest structure denoted as Si@SiOx/CNTs@C was prepared and studied, and the capacity of a Si@SiOx/CNTs@C composite anode can be maintained at above 1740 mA h g−1 at a current density of 0.42 A g−1 after 700 cycles.


2018 ◽  
Vol 10 (29) ◽  
pp. 24549-24553 ◽  
Author(s):  
Seong Heon Kim ◽  
Yong Su Kim ◽  
Woon Joong Baek ◽  
Sung Heo ◽  
Dong-Jin Yun ◽  
...  

2010 ◽  
Vol 150-151 ◽  
pp. 1387-1390
Author(s):  
Cheng Zhao Yang ◽  
Guo Qing Zhang ◽  
Lei Zhang ◽  
Li Ma

A composite anode material of SnO2/graphite(GT)/carbon nanotube(CNT) for lithium-ion batteries was prepared by ball milling. It was observed that SnO2 particles were homogeneously embedded into the buffering matrix of graphite particles. This composite anode material showed an increased initial coulombic efficiencies of 56% in the first cycle, and after 25 charge–discharge cycles, a reversible capacity of 431 mAh/g was obtained, much higher than 282 mAh/g of SnO2/GT composite and 177 mAh/g of pure SnO2. The improvement in the electrochemical properties of the composite anode materials was mainly attributed to good electric conductivity of the CNT network and the excellent resiliency.


2017 ◽  
Vol 41 (3) ◽  
pp. 975-981 ◽  
Author(s):  
Hua Li ◽  
Zhoufu Li ◽  
Yanhui Cui ◽  
Chenxiang Ma ◽  
Zhiyuan Tang

Li2ZnTi3O8 and Li2ZnTi3O8/TiO2 anode materials were synthesized via a co-precipitation method and displayed excellent electrochemical performances.


Author(s):  
Guangfeng Shi ◽  
Jiale Zhou ◽  
Rong Zeng ◽  
Bing Na ◽  
Shufen Zou

Abstract Porous structures in anode materials are of importance to accommodate volume dilation of active matters. In the present case, a carbon nanoporous framework is hydrothermally synthesized from glucose in the presence of graphene oxide (GO), together with in situ active Fe3O4 nanoparticles within it. The composite anode material has outstanding electrochemical performance, including high specific capacity, excellent cyclic stability and superior rate capability. The specific capacity stays at 830.8 mAhg−1 after 200 cycles at 1 A/g, equivalent to a high capacity retention of 88.7%. The findings provide valuable clues to tailor morphology of hydrothermally carbonized glucose for advanced composite anode materials of lithium-ion batteries.


RSC Advances ◽  
2012 ◽  
Vol 2 (13) ◽  
pp. 5701 ◽  
Author(s):  
Xuejiao Feng ◽  
Jun Yang ◽  
Pengfei Gao ◽  
Jiulin Wang ◽  
Yanna Nuli

ChemSusChem ◽  
2020 ◽  
Vol 13 (8) ◽  
pp. 1923-1946 ◽  
Author(s):  
Joseph Nzabahimana ◽  
Zhifang Liu ◽  
Songtao Guo ◽  
Libin Wang ◽  
Xianluo Hu

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