Nanoparticle-Driven Assembly of Highly Conducting Hybrid Block Copolymer Electrolytes

被引：77

作者：

Villaluenga, Irune ^{[1
,3
]}

Chen, Xi Chelsea ^{[4
]}

Devaux, Didier ^{[1
]}

Hallinan, Daniel T. ^{[5
]}

Balsara, Nitash P. ^{[1
,2
,3
,4
]}

机构：

[1] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA

[2] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA

[3] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, JCESR, Berkeley, CA 94720 USA

[4] Univ Calif Berkeley, Dept Chem & Biomol Engn, Berkeley, CA 94720 USA

[5] Florida State Univ, Dept Chem & Biomed Engn, Tallahassee, FL 32310 USA

来源：

MACROMOLECULES | 2015年 / 48卷 / 02期

关键词：

RECHARGEABLE LITHIUM BATTERIES; POLYMER ELECTROLYTES; IONIC-CONDUCTIVITY; MOLECULAR-WEIGHT; DIBLOCK COPOLYMERS; ORDER-DISORDER; PHASE; MORPHOLOGIES; DIFFUSION; ROUTE;

D O I：

10.1021/ma502234y

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Hybrid nanostructured materials comprising block copolymers, nanoparticles, and lithium salts have the potential to serve as electrolytes in non-flammable rechargeable lithium batteries. Here we show that the addition of functionalized nanoparticles, at an optimized concentration, into lamellar block copolymer electrolytes, results in an increase in ionic conductivity. This is due to the occurrence of a lamellar-to-bicontinuous phase transition, driven by the addition of nanoparticles. The magnitude of the increase in conductivity is consistent with a simple model that accounts for the morphology of the conducting channels. The conductivity of the optimized hybrid electrolyte is only 6% lower than that of an idealized nanostructured electrolyte with perfectly connected conducting pathways and no dead ends.

引用

页码：358 / 364

页数：7

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