Use of a chelate complex with boron as a lithium salt for lithium battery electrolytes

被引：40

作者：

Handa, M ^{[1
]}

Fukuda, S ^{[1
]}

Sasaki, Y ^{[1
]}

Usami, K ^{[1
]}

机构：

[1] DENSO CORP,RES & DEV,KARIYA,AICHI 448,JAPAN

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 1997年 / 144卷 / 09期

关键词：

D O I：

10.1149/1.1837927

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A chelate complex with boron, lithium bis[2,3-naphthalenediolato(2-)-O,O']borate was used in lithium battery electrolytes for Li/V2O5 prototype cells. This lithium salt remains a safe and thermally stable compound up to 320 degrees C without melting. A high specific conductivity (4.63 mS cm(-1)) is exhibited in spite of its high viscosity (1.732 cP) in a 0.5 mol dm(-3) electrolyte(ethylene carbonate-1,2-dimethoxyethane (mol ratio 2:3) binary solvent mixture at 25 degrees C. Based on the discharge characteristics of a Li/V2O5 prototype cell, this lithium salt electrolyte resulted in high energy density (460 Wh kg(-1)) at a cutoff potential of 2.5 V vs. Li/Li+.

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页码：L235 / L237

页数：3

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