Investigation of Rechargeable Poly(ethylene oxide)-Based Solid Lithium-Oxygen Batteries

被引：12

作者：

Balaish, Moran ^{[1
,2
]}

Leskes, Michal ^{[3
]}

Ein-Eli, Yair ^{[1
,2
]}

机构：

[1] Technion Israel Inst Technol, Grand Technion Energy Program, IL-3200003 Haifa, Israel

[2] Technion Israel Inst Technol, Dept Mat Sci & Engn, IL-3200003 Haifa, Israel

[3] Weizmann Inst Sci, Dept Mat & Interfaces, IL-7610001 Rehovot, Israel

来源：

ACS APPLIED ENERGY MATERIALS | 2018年 / 1卷 / 07期

关键词：

Li-O-2; battery; oxygen; poly(ethylene oxide); polymer electrolyte; CNT; high temperature Li-O-2 battery; THERMAL OXIDATIVE-DEGRADATION; POLYMER ELECTROLYTE; LI-O-2; STABILITY; MECHANISM; PERFORMANCE; PRODUCTS;

D O I：

10.1021/acsaem.8b00702

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：

Liquid-free solid polymer electrolyte (SPE) Li-O-2 batteries are considered advantageous power sources for multiple applications, albeit their cycle performance is far from being acceptable. A most challenging SPE stability in Li-O-2 battery operating at 80 degrees C is described here, presenting possible directions for this battery type future development. Hereby, we investigated poly(ethylene oxide) (PEO) stability in Li-O-2 batteries after cycling and determined that the polymer instability is originated from an accumulation of formate-based species, which required high decomposition potential and showed low decomposition efficiency. This poses a key challenging issue of unfavorable round-trip efficiency, dictating a poor cycle performance.

引用

页码：3048 / 3056

页数：17

共 29 条

[1] Understanding the Chemical Stability of Polymers for Lithium-Air Batteries [J].