An all-solid-state lithium ion battery electrolyte membrane fabricated by hot-pressing method

被引：65

作者：

Han, Pengfei ^{[1
]}

Zhu, Yuewu ^{[1
]}

Liu, Jin ^{[1
]}

机构：

[1] Cent S Univ, Sch Met & Environm, Changsha 410083, Hunan, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2015年 / 284卷

基金：

中国国家自然科学基金;

关键词：

Solid polymer electrolyte; Hot-pressing; Solvent-free filming technique; All-solid-state lithium ion battery; Cross-linked electrolyte membrane; CRYSTALLINE POLYMER ELECTROLYTES; POLY(ETHYLENE OXIDE); CONDUCTIVITY; PERFORMANCE; BLENDS; POLYSILOXANE; COMPLEXES; STRATEGY;

D O I：

10.1016/j.jpowsour.2015.03.058

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 cross-linked polymer electrolyte membrane (SPE) was fabricated by a solvent-free hot-pressing method for all-solid-state lithium ion battery. The ionic conductivity of the electrolyte is 1.34 x 10(-3) S cm(-1) and the decomposition potential is 4.87 V at the ethylene oxide (EO):LiN(SO2CF3)(2) (LiTFSI) molar ratio of 20:1 and 120 degrees C. TG-DSC results show that the SPE is thermally stable up to 230 degrees C in argon atmosphere. The assembled LiFePO4/SPE/Li all-solid-state battery can stably work in the temperature range of 80-140 degrees C. At 120 degrees C, the initial discharge capacity of the battery is 156.7 mAh g(-1) at 1C which is close to the theoretical capacity of the cathode material, showing that the solvent-free filming method is low-cost and environment-friendly for solid polymer electrolyte and all-solid-state lithium ion battery. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：459 / 465

页数：7

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