Effect of lithium difluoro(oxalate)borate (LiDFOB) additive on the performance of high-voltage lithium-ion batteries

被引：100

作者：

Hu, Meng ^{[1
]}

Wei, Jinping ^{[1
]}

Xing, Liying ^{[1
]}

Zhou, Zhen ^{[1
]}

机构：

[1] Nankai Univ, Tianjin 300071, Peoples R China

来源：

JOURNAL OF APPLIED ELECTROCHEMISTRY | 2012年 / 42卷 / 05期

关键词：

Lithium-ion batteries; LiDFOB; Electrolyte additive; High voltage; CATHODE MATERIALS; ELECTROCHEMICAL PERFORMANCE; ELECTROLYTE ADDITIVES; LICOPO4/C COMPOSITES; LIQUID; CELLS; EXTRACTION; INSERTION; GRAPHITE;

D O I：

10.1007/s10800-012-0398-0

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Lithium difluoro(oxalato)borate (LiDFOB) was investigated as an electrolyte additive for high-voltage lithium-ion batteries in order to decrease the decomposition of the electrolyte. As a typical high-voltage cathode material, LiCoPO4 was tested in the LiDFOB-containing electrolyte, exhibiting higher reversible charge/discharge capacity and better cyclic stability. The effect of LiDFOB on the formation of a stable interphase film was investigated through cyclic voltammetry and X-ray photoelectron spectroscopy. LiDFOB was helpful to form a stable interphase film and passivate the cathode surface; therefore, the decomposition of the electrolyte was inhibited accordingly.

引用

页码：291 / 296

页数：6

共 52 条

[1] Functional electrolytes: Novel type additives for cathode materials, providing high cycleability performance [J].