Nanoscale lithium ion conducting polyethylene oxide with self-attached insulating layers

Nanoscale lithium ion conducting polyethylene oxide with self-attached insulating layers

TitleNanoscale lithium ion conducting polyethylene oxide with self-attached insulating layers
Publication TypeJournal Article
Year of Publication2004
AuthorsGao Liu, Melanie T Reinhout, Gregory L Baker
JournalSolid State Ionics
Volume175
Pagination721-724
Date Published11/2004
Keywordslithium battery, nanostructure, polymer electrolyte, self-assembly
Abstract

We report a new family of self-assembling nanostructured polymers for potential application as electrolytes in rechargeable lithium batteries. The ester groups of these amphiphilic methacrylate polymers are oligoethylene oxide segments terminated by a linear alkyl chain. The ethylene oxide segments are amorphous providing good lithium salt solubility and ionic conductivity, while the terminal alkyl segments crystallize and provide dimensional stability. The polymers self-assemble into nanometer-thick lamellar structures with alternating layers of conductive ethylene oxide and insulating alkyl layers.