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Citation: ZHENG Hong-He, JIANG Kai, QIN Jian-Hua, XU Zhong-Yu. Lithium Insertion-deinsertion Properties of Coated Graphite by Ultrasonic Impregnation Technique[J]. Chinese Journal of Applied Chemistry, ;2004, 21(8): 801-805. shu

Lithium Insertion-deinsertion Properties of Coated Graphite by Ultrasonic Impregnation Technique

1.
a College of Chemistry & Environmental Sciences, He'nan Normal University, Xinxiang 453002;
2.
b College of Materials Science and Engineering, Hunan University, Changsha

Corresponding author: ZHENG Hong-He,
Received Date: 27 September 2003
Available Online: 25 February 2004
Fund Project: 河南省杰出青年基金(04120001100) (04120001100)河南省自然科学基金(0311022500)资助课题 (0311022500)

The microstructure and electrochemical performance of coated graphite obtained by ultrasonic impregnation technique were investigated. The results show that ultrasonic impregnation technique favors coating of graphite profoundly and uniformly, at the same time prevents the co-intercalation of solvated lithium ions into graphite layers effectively. The charge-discharge capacity of the composite material attains 308.2 mA·h/g in 1 mol/L LiClO₄/EC+DMC(1:1) electrolyte. The electrode can also be recycled in propylene carbonate based electrolyte solution.
- lithium ion battery,
- carbon anode,
- coating,
- electrochemical performance
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