电解液对LiCr0.1Mn1.9O4电化学性能的影响

引用本文: 李建刚, 唐致远, 薛建军, 王占良. 电解液对LiCr_0.1Mn_1.9O₄电化学性能的影响[J]. 应用化学, 2002, 19(7): 699-701. shu

Citation: LI Jian-Gang, TANG Zhi-Yuan, XUE Jian-Jun, WANG Zhan-Liang. Effects of Electrolyte Solutions on the Electrochemical Properties of LiCr_0.1Mn_1.9O₄ Cathode[J]. Chinese Journal of Applied Chemistry, 2002, 19(7): 699-701. shu

电解液对LiCr_0.1Mn_1.9O₄电化学性能的影响

1.
天津大学化工学院天津 300072

通讯作者: 唐致远,男,1946年生,硕士,教授;E-mail:zytang@tju.edu.cn;研究方向:应用电化学

基金项目:
天津市自然科学基金资助项目(990346) (990346)

摘要: LiMn₂O₄作为锂离子电极阴极材料具有低成本、高安全性、低污染等优点,但由于锰溶解、电解液分解及Jahn-Teller畸变等因素导致其容量衰减较快^[1~3].

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English

Effects of Electrolyte Solutions on the Electrochemical Properties of LiCr_0.1Mn_1.9O₄ Cathode

1.
School of Chemical Engineering, Tianjin University, Tianjin 300072

Corresponding author: 唐致远,男,1946年生,硕士,教授;E-mail:zytang@tju.edu.cn;研究方向:应用电化学

Received Date: 20 October 2001
Fund Project:
天津市自然科学基金资助项目(990346)

Abstract: The electrochemical properties of LiCr_0.1Mn_1.9O₄ as a cathode material in five electrolyte solutions, LiPF₆/EC+DEC, LiPF₆/EC+EMC, LiPF₆/EC+DME, LiPF₆/EC+DMC and LiBF₄/ EC+ DMC have been studied. The initial capacity values were very close each to other for the electrolyte solutions examined. However, the capacity fading and self-discharge data obtained from the cells with above electrolyte solutions were different in the order of LiPF₆/EC+DME > LiPF₆/EC+EMC >> LiPF₆/EC+DMC≈LiPF₆/EC+DEC≈LiBF₄/EC+DMC. Decrease of the electrochemical properties was attributed mainly to the electrolyte decompositions on the surface of the electrodes. LiPF₆/EC+DEC, LiPF₆/EC+DMC and LiBF₄/EC+DMC appeared electrolytes well compatible with LiCr_0.1Mn_1.9O₄ electrode.

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

电解液对LiCr_0.1Mn_1.9O₄电化学性能的影响

通讯作者: 唐致远,男,1946年生,硕士,教授;E-mail:zytang@tju.edu.cn;研究方向:应用电化学

English

Effects of Electrolyte Solutions on the Electrochemical Properties of LiCr_0.1Mn_1.9O₄ Cathode

Corresponding author: 唐致远,男,1946年生,硕士,教授;E-mail:zytang@tju.edu.cn;研究方向:应用电化学

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通讯作者: 陈斌, bchen63@163.com

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