Studies on cross-linked polyurethane acrylate-based electrolyte consisting of reactive vinyl/divinyl diluents | Health & Environmental Research Online (HERO)

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Citation
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HERO ID

4948980

Reference Type

Journal Article

Title

Studies on cross-linked polyurethane acrylate-based electrolyte consisting of reactive vinyl/divinyl diluents

Author(s)

Digar, ML; Hung, SL; Wen, TC; Gopalan, A

Year

2002

Is Peer Reviewed?

Journal

Polymer
ISSN: 0032-3861

Volume

Issue

Page Numbers

1615-1622

DOI

10.1016/S0032-3861(01)00737-6

Web of Science Id

WOS:000173233000006

URL

http://www.sciencedirect.com/science/article/pii/S0032386101007376
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Abstract

A series of cross-linked polyurethane acrylate (PUA) electrolytes have been prepared by using 4,4'-methylene bis(phenyl isocyanate). polyethylene glycol, hydroxyethyl methacrylate and different reactive vinyl/divinyl diluents, such as methyl methacrylate (MMA), ethyl acrylate and acrylonitrile, tripropylene glycol diacrylate (TPGDA). The electrolytes were prepared by UV radiation induced cross-linking of the PUA-diluent mixture followed by swelling in a liquid electrolyte (LP-30). Depending upon the composition of the components, these electrolytes exhibited a wide range of mechanical and electrical properties. The system containing MMA as reactive diluent showed highest conductivity, but poor mechanical properties and stability in the liquid electrolyte. The TPGDA cross-linked system possesses a good combination of ionic conductivity and stability in liquid electrolytes. These systems showed good compatibility with Li-electrodes and sufficient electrochemical stability to allow safe operation in rechargeable Li-batteries. (C) 2002 Elsevier Science Ltd. All rights reserved.

Keywords

polymer electrolyte; polyurethane acrylate; vinyl diluents