Changes of LiCoO2 cathode material for lithium-ion battery during long cycling

H. P. Zhang; L. J. Fu; Y. P. Wu; H. Q. Wu

doi:10.1149/1.2789404

Changes of LiCoO2 cathode material for lithium-ion battery during long cycling

H. P. Zhang, L. J. Fu, Y. P. Wu, H. Q. Wu

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

Changes of the cathode material LiCoO2 of our homemade lithium-ion batteries with good uniformity, high capacity, and good cycling were investigated after 500, 1060, and 1600 cycles. The results show clearly that the cathode partially contributes to capacity fading of lithium-ion batteries due to two factors: (i) reactions between the electrolytes and LiCoO2, which produce a continuously growing surface layer on the cathode, leading to the increase of the charge transfer resistance, and (ii) the fading of LiCoO2 structure. These results provide valuable clues to extend the cycling life for lithium-ion batteries.

Original language	English
Pages (from-to)	A283-A285
Journal	Electrochemical and Solid-State Letters
Volume	10
Issue number	12
DOIs	https://doi.org/10.1149/1.2789404
State	Published - 2007
Externally published	Yes

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abstract = "Changes of the cathode material LiCoO2 of our homemade lithium-ion batteries with good uniformity, high capacity, and good cycling were investigated after 500, 1060, and 1600 cycles. The results show clearly that the cathode partially contributes to capacity fading of lithium-ion batteries due to two factors: (i) reactions between the electrolytes and LiCoO2, which produce a continuously growing surface layer on the cathode, leading to the increase of the charge transfer resistance, and (ii) the fading of LiCoO2 structure. These results provide valuable clues to extend the cycling life for lithium-ion batteries.",

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AU - Fu, L. J.

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AU - Wu, H. Q.

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AB - Changes of the cathode material LiCoO2 of our homemade lithium-ion batteries with good uniformity, high capacity, and good cycling were investigated after 500, 1060, and 1600 cycles. The results show clearly that the cathode partially contributes to capacity fading of lithium-ion batteries due to two factors: (i) reactions between the electrolytes and LiCoO2, which produce a continuously growing surface layer on the cathode, leading to the increase of the charge transfer resistance, and (ii) the fading of LiCoO2 structure. These results provide valuable clues to extend the cycling life for lithium-ion batteries.

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Changes of LiCoO2 cathode material for lithium-ion battery during long cycling

Abstract

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