Studies on the Interfacial Process of Lithium Ion in the Cathode Material of LiMn2O4

Abstract

Abstract: The interfacial process of lithium ion in the cathode material of LiMn₂O₄ was investigated through the technique of impedance spectroscopy.The results show that the semicircle in the high frequency range is associated with the resistance and capacitance caused by the absorption of lithium ion of electrolyte onto the surface of LiMn₂O₄The semicircle in the middle frequency range is caused by the charge-transfer resistance and double-layer capacitance.The inclined line in the low frequency range is caused by the diffusion of lithium ion in LiMn₂O_4.

Key words: Lithium ion, interfacial process, impedance

XIAO Zhuo-Bing. Studies on the Interfacial Process of Lithium Ion in the Cathode Material of LiMn₂O₄[J]. journal6, 2004, 25(4): 53-57.

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Studies on the Interfacial Process of Lithium Ion in the Cathode Material of LiMn₂O₄

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