Improved Electrochemical Performance of LiCoO2 due to Pt Additive

Abstract

Abstract: The influence of the initial addition of Pt on the microstructure and electrochemical properties of synthesized LiCoO₂-based material was investigated. A small amount of Pt additive induces Li₂PtO₃ and Pt in matrix LiCoO₂ to form a multi-phase composite. This multi-phase composite shows the improved rate performance and cycleability at high rate in comparison with the single-phase of LiCoO₂. This behavior is attributed to the enhanced diffusion of Li ion in the LiCoO₂ matrix, which can be demonstrated by galvanostatic intermittent titration technique.

Key words: LiCoO₂-based multi-phase composite, Pt element additive, discharge rate, diffusion

CLC Number:

TM912

DU Ke,QI Lu,WANG Yin-Jie,ZHANG Hong. Improved Electrochemical Performance of LiCoO₂ due to Pt Additive[J]. Journal of Inorganic Materials.

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Improved Electrochemical Performance of LiCoO₂ due to Pt Additive

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