Effects of Compaction Density of Graphite Anode on Performance of Lithium-Ion Battery with Soft Package

化学工业与工程

Chemcial Industry and Engineering

2017, Vol. 34

Issue (2) :68-72 DOI: 10.13353/j.issn.1004.9533.20151050

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Effects of Compaction Density of Graphite Anode on Performance of Lithium-Ion Battery with Soft Package

Jiang Huan¹, Xu Qiang¹, Meng Fanhui², Zhou Jiang², Gao Junkui²

1. School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China;
2. Tianjin Li-Shen Battery Join-Stock Co. Ltd, Tianjin 300384, China

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Abstract

Compaction density of graphite anode is one of the main factors on the cycle performance and rate performance of lithium ion batteries. The electrochemical performances of three kinds of graphite anode with different compaction density are conducted in this article. Both the resistance of cell and the absorption time of electrolyte have increased with increasing the compaction density of graphite anode. Among these batteries with different compaction density of graphite anode, the cycle performance and rate performance with a compaction density of 1.7 g/cm³ is the best. After 500 cycles at 0.5 C discharge, the capacity retention ratio of battery with a compaction density of 1.7 g/cm³ is 86.8%. The 3.0 C discharge capacity retains 95.1% of 0.2 C discharge capacity.

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	Jiang Huan
	Xu Qiang
	Meng Fanhui
	Zhou Jiang
	Gao Junkui

Keywords： lithium-ion batteries； graphite； anode； compaction density； battery performance

Received 2015-04-08;

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Cite this article:

Jiang Huan, Xu Qiang, Meng Fanhui, Zhou Jiang, Gao Junkui.Effects of Compaction Density of Graphite Anode on Performance of Lithium-Ion Battery with Soft Package[J] Chemcial Industry and Engineering, 2017,V34(2): 68-72

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