Synthesis by an EDTA-based Complexation Process and Characterization of LiNi0.9Co0.1O2 Cathode Materials

Abstract

Abstract: The layered LiNi_xCo_1-xO₂ compound was prepared by calcining a complex precursor at different temperatures.
The physical properties of the synthesized cathode materials were discussed on the basis of structural analysis. The charge and discharge cycling of the
cells containing the synthesized oxide as the positive electrode in conjunction with lithium metal and employing a non-aqueous electrolyte
shows that LiNi_0.9Co_0.1O₂ treated at 900℃ exhibits the best electrochemical performance. The first discharge capacity of
LiNi_0.9Co_0.1O₂ is 120.5 mAh/g with 30 cycle capacity loss of only 1.4%. The mechanisms of capacity degradation were investigated based on
phase and microstructure analyses.

Key words: LiNi_xCo_1-xO₂, cathode, complexation process, lithium-ion batteries

CLC Number:

TM911

LIU Jing,WEN Zhao-Yin,GU Zhong-Hua,ZHANG Xiang-Feng. Synthesis by an EDTA-based Complexation Process and Characterization of LiNi_0.9Co_0.1O₂ Cathode Materials[J]. Journal of Inorganic Materials.

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Synthesis by an EDTA-based Complexation Process and Characterization of LiNi_0.9Co_0.1O₂ Cathode Materials

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