電解質膜及びそれを用いた固体高分子型燃料電池

Electrolyte membrane and polymer electrolyte fuel cell using it

Abstract

【課題】特に、プロトン伝導性とメタノール透過阻止性が高く、しかもメタノール膨潤性が低い電解質膜及びそれを用いた固体高分子型燃料電池を提供する。 【解決手段】重量平均分子量50万以上のポリオレフィン類を必須成分とし、熱可塑性エラストマー、およびグラフトコポリマーからなる群より選ばれる1種以上を任意成分として含む第1ポリマーを99〜50重量%と、主鎖または側鎖に含まれる二重結合が少なくとも1%以上エポキシ基に置換されたポリマーである第2ポリマーを1〜50重量%とを含有する樹脂組成物から得られる多孔性基材の細孔内に、プロトン伝導性を有する第3ポリマーを充填してある電解質膜。 【選択図】なし
<P>PROBLEM TO BE SOLVED: To provide an electrolyte membrane having, in particular, high proton conductivity and methanol permeation prevention capability and a low methanol-swollen property; and to provide a polymer electrolyte fuel cell using it. <P>SOLUTION: In this electrolyte membrane, a third polymer having proton conductivity is filled in fine pores of a porous base material obtained from a resin composition containing 99-50 wt.% of a first polymer containing polyolefins having a weight-average molecular weight not smaller than 500,000 as an essential constituent and one or more kinds selected from a group comprising a thermoplastic elastomer and a graft polymer as an arbitrary constituent and 1-50 wt.% of a second polymer being a polymer wherein each double bond included in a main chain or a side chain is substituted with at least 1% of an epoxy group. <P>COPYRIGHT: (C)2006,JPO&NCIPI

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Cited By (2)

    Publication numberPublication dateAssigneeTitle
    JP-2006269279-AOctober 05, 2006Kaneka Corp, 株式会社カネカPolymer film, polyelectrolyte membrane, and manufacturing method of them, as well as solid polymer fuel cell using them
    JP-2009543949-ADecember 10, 2009ディーエスエム アイピー アセッツ ビー.ブイ.電解膜