The Electrochemical Performance Studies on Novel LiFeBO3 Cathode Materials for Li-ion Batteries

doi:10.3724/SP.J.1095.2011.00522

Chinese Journal of Applied Chemistry ›› 2011, Vol. 28 ›› Issue (07): 821-825.DOI: 10.3724/SP.J.1095.2011.00522

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The Electrochemical Performance Studies on Novel LiFeBO₃ Cathode Materials for Li-ion Batteries

WANG Hong^1*, YANG Ci¹, GUO Chuntai², WANG Daxing³, SUN Lian³

(1.School of Chemistry and Chemical Engineering,Mianyang Normal University,Mianyang 621000;
2.Jiewei Power Co.Lt,Tianjin;
3.Sichuan Jiuyuan Huantong Power Sources Co. Lt,Mianyang)

Received:2010-09-06 Revised:2010-10-16 Published:2011-07-10 Online:2011-07-10

Abstract

Abstract:

The LiFeBO3 cathode materials for Li-ion batteries were prepared by means of solid reaction using lithium metaborate and ferrous oxalate as raw materials. The LiFeBO3 cathode materials were further coated by ethylene propylene copolymer(EPM). The samples were characterized by X-ray diffraction, scanning electron microscopy, and titration analysis. Electrochemical tests of materials showed that LiFeBO3 exhibited a higher discharge mass specific capacity. The electrochemical performance of the coated samples was demonstrated to be improved. Sample coated with 5%EPM had an initial capacity of 190 mA·h/g. It was found that only 4.2% capacity was lost after 50 charge/discharge cyclings at 0.5C.

Key words: Lithium ion batterry, Cathode material, Lithium Iron Borate

CLC Number:

WANG Hong1*, YANG Ci1, GUO Chuntai2, WANG Daxing3, SUN Lian3. The Electrochemical Performance Studies on Novel LiFeBO₃ Cathode Materials for Li-ion Batteries[J]. Chinese Journal of Applied Chemistry, 2011, 28(07): 821-825.

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The Electrochemical Performance Studies on Novel LiFeBO₃ Cathode Materials for Li-ion Batteries

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