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Hyperbranched polymer electrolytes for high temperature fuel cells

T. Itoh,     Mie University, Japan

Abstract:

This chapter describes the application of hyperbranched polymer-based electrolyte membranes for high temperature fuel cells. Hyperbranched polymers with a sulfonic acid group or a phosphonic acid one as a proton source were synthesized and the proton conductivity, thermal property and fuel cell performance of their polymers and crosslinked membranes were investigated. The concept of the proton conduction coupled with the polymer chain motion was proposed for high temperature fuel cells.

Key words

hyperbranched polymer

sulfonic acid group

phosphonic acid group

proton-conducting polymer

high temperature fuel cells

13.1 Introduction ...

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