中国物理B ›› 2010, Vol. 19 ›› Issue (11): 117101-117102.doi: 10.1088/1674-1056/19/11/117101

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First-principle study on phase Al0.8Ni3Sn0.2 in Sn-Ni-Al alloy as anode for lithium ion battery

赵灵智1, 李伟善1, 黄钊文2, 胡社军2, 侯贤华2, 汝强2, 张志文2   

  1. (1)Key Laboratory of Electrochemical Technology on Energy Storage and Power Generation of Guangdong Higher Education Institutes, South China Normal University, Guangzhou 510006, China; (2)School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China
  • 收稿日期:2009-01-04 修回日期:2010-06-18 出版日期:2010-11-15 发布日期:2010-11-15
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 50771046), China Postdoctoral Science Foundation (Grant No. 20080440764), and Guangdong Province Natural Science Foundation (Grant No. 9451063101002082).

First-principle study on phase Al0.8Ni3Sn0.2 in Sn-Ni-Al alloy as anode for lithium ion battery

Huang Zhao-Wen(黄钊文)a), Hu She-Jun(胡社军)a), Hou Xian-Hua(侯贤华)a), Zhao Ling-Zhi(赵灵智)b), Ru Qiang(汝强) a),Li Wei-Shan(李伟善)b), and Zhang Zhi-Wen(张志文)a)   

  1. a School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China; b Key Laboratory of Electrochemical Technology on Energy Storage and Power Generation of Guangdong Higher Education Institutes, South China Normal University, Guangzhou 510006, China
  • Received:2009-01-04 Revised:2010-06-18 Online:2010-11-15 Published:2010-11-15
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 50771046), China Postdoctoral Science Foundation (Grant No. 20080440764), and Guangdong Province Natural Science Foundation (Grant No. 9451063101002082).

摘要: The mechanism of lithium intercalation/deintercalation for phase Al0.8Ni3Sn0.2 as anode material used in lithium ion battery was studied carefully based on the first-principle plane wave pseudo-potential method. The calculated results indicated that Sn--Ni--Al alloy had high theoretical capacity when used as anode material, however, there was high initial irreversible capacity loss because of the large volume expansion. Therefore the technological parameters during preparing the Sn-Ni-Al anode should be controlled strictly to make the content of Al0.8Ni3Sn0.2 phase as low as possible and to make the anode consist of promising Sn--Ni and Al--Ni phases. For comparison, an experiment based on magnetron sputtering was done. The result showed that the calculation is in good agreement with the experiment. We found that the first-principle investigation method is of far-reaching significance in synthesising new commercial anode materials with high capacity and good cycle performance.

Abstract: The mechanism of lithium intercalation/deintercalation for phase Al0.8Ni3Sn0.2 as anode material used in lithium ion battery was studied carefully based on the first-principle plane wave pseudo-potential method. The calculated results indicated that Sn–Ni–Al alloy had high theoretical capacity when used as anode material, however, there was high initial irreversible capacity loss because of the large volume expansion. Therefore the technological parameters during preparing the Sn–Ni–Al anode should be controlled strictly to make the content of Al0.8Ni3Sn0.2 phase as low as possible and to make the anode consist of promising Sn–Ni and Al–Ni phases. For comparison, an experiment based on magnetron sputtering was done. The result showed that the calculation is in good agreement with the experiment. We found that the first-principle investigation method is of far-reaching significance in synthesising new commercial anode materials with high capacity and good cycle performance.

Key words: Sn–Ni–Al alloy, first-principle, lithium ion battery

中图分类号:  (Electrodes)

  • 82.45.Fk
82.47.Aa (Lithium-ion batteries)