Block copolymer electrolytes synthesized by atom transfer radical polymerization for solid-state, thin-film lithium batteries

被引：79

作者：

Trapa, PE ^{[1
]}

Huang, BY ^{[1
]}

Won, YY ^{[1
]}

Sadoway, DR ^{[1
]}

Mayes, AM ^{[1
]}

机构：

[1] MIT, Dept Mat Sci & Engn, Cambridge, MA 02139 USA

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2002年 / 5卷 / 05期

关键词：

D O I：

10.1149/1.1461996

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Block copolymer electrolytes of poly[(oxyethylene)(9) methacrylate]-b-poly(butyl methacrylate) (POEM-b-PBMA) (60:40 by mass) synthesized for the first time by atom transfer radical polymerization (ATRP) exhibited mechanical and electrical properties indistinguishable from those of materials made by the more difficult anionic polymerization method. ATRP offers distinct processing advantages as it is easily scalable and almost solvent-free. Solid-state, thin-film batteries comprised of a metallic lithium anode, a binder-free, additive-free, fully dense vanadium oxide cathode, and an electrolyte of ATRP-synthesized POEM-b-PBMA (60:40) doped with LiCF3SO3 demonstrate resistance to capacity fade during extended cycling at a discharge rate of C/2, and perform comparably to otherwise identical batteries operated with the liquid electrolyte 1 M LiPF6 in ethylene carbonate: dimethyl carbonate (1:1 by mass). (C) 2002 The Electrochemical Society.

引用

页码：A85 / A88

页数：4

共 23 条

[1] Poly(phosphazene-ethylene oxide) di- and triblock copolymers as solid polymer electrolytes [J].