Polymers for electrochemical devices

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Abstract
Polymeric materials are already present in electrochemical storage devices such as batteries and PEM fuel cells. The polymer is an electro‐active material in lithium polymer batteries. Several network based polymer electrolytes provide thermal, mechanical and redox stabilities, while insuring a high conductivity level. Linear unsaturated polyether precursors may be obtained either by step‐growth polymerization from oligomeric polyethers, or by ring‐opening polymerization from oxirane mixtures. Some prototype performances, performed on a 10 Wh lithium polymer cell, are presented and discussed.