Polyelectrolyte membrane and production method therefor

Details Polyelectrolyte membrane and production method therefor Polyelectrolyte membrane and production method therefor

2003-06-18

2009-06-09

Yuan, Dah-Wei D (Department: 1795)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Include electrolyte chemically specified and method

C429S314000, C429S304000, C528S179000

Reexamination Certificate

active

07544445

ABSTRACT:
A polymer electrolyte membrane comprising a microporous polymer membrane having pores penetrating through the opposite sides thereof. The microporous polymer membrane holds a mixture of a polymer and a molten salt at a weight ratio of 1/99 to 99/1 and/or a molten salt. The polymer electrolyte membrane is inexpensive, durable, excellent in mechanical strength, excellent in structural retention in high temperatures, and capable of stably holding a molten salt in its porous polymer membrane structure, shows high heat resistance, and secures high ionic conductivity in the absence of water or a solvent and is therefore useful in fuel cells, secondary batteries, electric double layer capacitors, electrolytic capacitors, and the like.

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Kim et al., Highly Conductive Polymer Electrolytes Supported By Microporous Membrane, Solid State Ionics 144 (2001) 329-337.
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