Polynorbornene-polyethylene glycol based polymers as electrolyte materials for rechargeable lithium batteries

Abstract

Polymer electrolytes are a promising alternate to flammable liq. polymer electrolytes. Their use in lithium based rechargeable batteries is limited by low ion cond. (< 10-5 S/cm) and mech. stability. There has been considerable effort to develop dry solid polymer electrolyte materials with higher conductivities (10-4 S/cm) at room temps. Achieving both high cond. and mech. stability in a polymer is challenging. Towards that goal we have synthesized polynorbornene-polyethylene glycol based copolymers. Cond. and mech. properties of these materials were explored towards their use in lithum rechargeable batteries.

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