Study of Si/p-PANI Anode Materials for Lithium Ion Batteries

化学工业与工程

Chemcial Industry and Engineering

2018, Vol. 35

Issue (5) :28-34 DOI: 10.13353/j.issn.1004.9533.20161101

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Study of Si/p-PANI Anode Materials for Lithium Ion Batteries

Liu Yuanyuan¹, Xie Haimei², Kang Yilan², Li Xianggao^1,3, Tian Jianhua^1,3

1. School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China;
2. School of Mechanical Engineering, Tianjin University, Tianjin 300350, China;
3. Tianjin Engineering Research Center of Functional Fine Chemicals, Tianjin 300350, China

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Abstract Si and pyrolized PANI composites (Si/p-PANI) used as anode materials for lithium ion batteries, were prepared by ball-milling and high temperature pyrolysis at different temperatures,using nano-silicon as raw material and polyaniline (PANI) as carbon source. The structure, morphology and electrochemical properties of the Si/PANI and Si/p-PANI composites were characterized by XRD, SEM, TEM, FTIR, XPS, constant current charge-discharge and cyclic voltammetry (CV) methods. The results show that Si/p-PANI composites can prevent the agglomeration of nano-silicon particles and form a good conductive network. Si/p-PANI composite pyrolized at 700℃ exhibits a reversible capacity of 1 051.1 mAh·g^-1 after 50 cycles at a current density of 400 mA·g^-1 and has the best electrochemical properties.

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	Liu Yuanyuan
	Xie Haimei
	Kang Yilan
	Li Xianggao
	Tian Jianhua

Keywords： lithium ion batteries； anode materials； Si/p-PANI； ball-milling

Received 2016-05-18;

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Liu Yuanyuan, Xie Haimei, Kang Yilan, Li Xianggao, Tian Jianhua.Study of Si/p-PANI Anode Materials for Lithium Ion Batteries[J] Chemcial Industry and Engineering, 2018,V35(5): 28-34

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