Enhanced electrochemical performance and thermal stability of LiNi0.5Mn1.5O4 using an electrolyte with sulfolane

被引：29

作者：

Zhang, Qian ^{[1
]}

Chen, Jia-Jia ^{[1
]}

Wang, Xue-Yin ^{[1
]}

Yang, Cheng ^{[1
]}

Zheng, Ming-Sen ^{[1
]}

Dong, Quan-Feng ^{[1
]}

机构：

[1] Xiamen Univ, Coll Chem & Chem Engn, State Key Lab Phys Chem Solid Surfaces, Xiamen 361005, Peoples R China

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2015年 / 17卷 / 16期

关键词：

LITHIUM-ION BATTERIES; CATHODE LIMN1.5NI0.5O4; INTERFACE; MECHANISMS; SOLVENT; SULFONE; MN;

D O I：

10.1039/c5cp00799b

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A sulfide-based SEI layer was formed on the surface of a LiNi0.5Mn1.5O4 cathode by using a sulfolane-carbonate mixed solvent electrolyte, which led to an improvement in the electrochemical performance. Moreover, the thermal stability of the LiNi0.5Mn1.5O4 cathode was also significantly improved in the presence of the SEI layer. ARC (Accelerating Rate Calorimetry) tests showed that the self-heating rate of the delithiated LiNi0.5Mn1.5O4 material in the sulfolanecarbonate electrolyte was suppressed.

引用

页码：10353 / 10357

页数：5

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