Preparation and Performance of Spinel LiMn2O4 Thin Films ——An EQCM Technique Study

Abstract

Abstract: The intercalation process of Li⁺ in spinel LiMn₂O₄ thin films in₁ mol/L LiClO₄+PC solution has been investigated using EQCM method. The results indicate that a passive solvent film is formed on the lithium-manganese-oxides electrode surface in PC solvent. The Li⁺ intercalation is a main process in the potential range between 2.5～3.25 V. However, the decomposition of the solvent film and de intercalation of Li⁺ occur simultaneously when the electrode potentials are controlled between 3.7～4.1V.

Key words: Lithium ion battery, Lithium manganese oxide film, EQCM technique

CLC Number:

O646

TrendMD:

SHU Dong, YANG Yong, XIA Xi, LIN Zu-Geng . Preparation and Performance of Spinel LiMn₂O₄ Thin Films ——An EQCM Technique Study[J]. Chem. J. Chinese Universities, 1998, 19(5): 805.

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Preparation and Performance of Spinel LiMn₂O₄ Thin Films ——An EQCM Technique Study

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