A highly concentrated phosphate-based electrolyte for high-safety rechargeable lithium batteries

被引：169

作者：

Shi, Pengcheng ^{[1
]}

Zheng, Hao ^{[1
]}

Liang, Xin ^{[1
]}

Sun, Yi ^{[1
]}

Cheng, Sheng ^{[1
]}

Chen, Chunhua ^{[2
]}

Xiang, Hongfa ^{[1
]}

机构：

[1] Hefei Univ Technol, Sch Mat Sci & Engn, Anhui Prov Key Lab Adv Funct Mat & Devices, Hefei 230009, Anhui, Peoples R China

[2] Univ Sci & Technol China, CAS Key Lab Mat Energy Convers, Dept Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China

来源：

CHEMICAL COMMUNICATIONS | 2018年 / 54卷 / 35期

基金：

美国国家科学基金会;

关键词：

LI-ION BATTERIES; SUPERCONCENTRATED ELECTROLYTES; ALKYL PHOSPHATES; GRAPHITE; METAL; EXFOLIATION; STABILITY; ANODE; WATER;

D O I：

10.1039/c8cc00994e

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We prepare a totally nonflammable phosphate-based electrolyte composed of 5 mol L-1 (M) Li bis(fluorosulfonyl) imide (LiFSI) in a trimethyl phosphate (TMP) solvent. The concentrated 5 M LiFSI/TMP electrolyte shows good compatibility with graphite and no Al corrosion. More attractively, such a concentrated electrolyte can effectively suppress the growth of Li dendrites in Li metal batteries because of a stable LiF-rich SEI layer. Therefore, this highly concentrated electrolyte is promising for safe Li batteries.

引用

页码：4453 / 4456

页数：4

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