JPWO2007108143A1 - 電解質組成物、固体電解質膜および固体高分子型燃料電池 - Google Patents
電解質組成物、固体電解質膜および固体高分子型燃料電池 Download PDFInfo
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- 125000000542 sulfonic acid group Chemical group 0.000 claims abstract description 46
- 229920001721 polyimide Polymers 0.000 claims abstract description 37
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- -1 diamine compound Chemical class 0.000 claims abstract description 21
- YTVNOVQHSGMMOV-UHFFFAOYSA-N naphthalenetetracarboxylic dianhydride Chemical compound C1=CC(C(=O)OC2=O)=C3C2=CC=C2C(=O)OC(=O)C1=C32 YTVNOVQHSGMMOV-UHFFFAOYSA-N 0.000 claims abstract description 5
- 125000003118 aryl group Chemical group 0.000 claims description 17
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- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
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- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 125000003277 amino group Chemical group 0.000 description 2
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- UQSQSQZYBQSBJZ-UHFFFAOYSA-N fluorosulfonic acid Chemical compound OS(F)(=O)=O UQSQSQZYBQSBJZ-UHFFFAOYSA-N 0.000 description 2
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- JVMSQRAXNZPDHF-UHFFFAOYSA-N 2,4-diaminobenzenesulfonic acid Chemical compound NC1=CC=C(S(O)(=O)=O)C(N)=C1 JVMSQRAXNZPDHF-UHFFFAOYSA-N 0.000 description 1
- RQBIGPMJQUKYAH-UHFFFAOYSA-N 4-(3,4-diaminophenoxy)benzene-1,2-diamine Chemical compound C1=C(N)C(N)=CC=C1OC1=CC=C(N)C(N)=C1 RQBIGPMJQUKYAH-UHFFFAOYSA-N 0.000 description 1
- HLBLWEWZXPIGSM-UHFFFAOYSA-N 4-Aminophenyl ether Chemical compound C1=CC(N)=CC=C1OC1=CC=C(N)C=C1 HLBLWEWZXPIGSM-UHFFFAOYSA-N 0.000 description 1
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 1
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 1
- 229920000557 Nafion® Polymers 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical group OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 1
- 239000004693 Polybenzimidazole Substances 0.000 description 1
- 239000004695 Polyether sulfone Substances 0.000 description 1
- 229920000265 Polyparaphenylene Polymers 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
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- 238000000862 absorption spectrum Methods 0.000 description 1
- GTDPSWPPOUPBNX-UHFFFAOYSA-N ac1mqpva Chemical compound CC12C(=O)OC(=O)C1(C)C1(C)C2(C)C(=O)OC1=O GTDPSWPPOUPBNX-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- KAMGOKSXKBHPHL-UHFFFAOYSA-N benzene-1,2,3,4-tetramine Chemical compound NC1=CC=C(N)C(N)=C1N KAMGOKSXKBHPHL-UHFFFAOYSA-N 0.000 description 1
- 125000002843 carboxylic acid group Chemical group 0.000 description 1
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- 238000001816 cooling Methods 0.000 description 1
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- 239000011521 glass Substances 0.000 description 1
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- 125000002883 imidazolyl group Chemical group 0.000 description 1
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- 229940100630 metacresol Drugs 0.000 description 1
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- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- 238000006384 oligomerization reaction Methods 0.000 description 1
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- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
- Conductive Materials (AREA)
Abstract
Description
この欠点を克服するため、アミノ基を3つ以上含む多官能成分とテトラカルボン酸二無水物との重縮合により得られる繰り返し構造単位含有するポリイミド樹脂組成物をプロトン伝導性高分子膜として使用する技術が開示されている(例えば特許文献4参照)。このポリイミド樹脂組成物は、多官能成分による分岐構造や架橋構造により、直鎖型のみで構成されるポリイミドと比較しているが、ポリイミド直鎖分子内架橋によるスルホン酸基含有ポリイミドについての記載はない。
また、特許文献5には、ポリイミダゾピロロンの気体分離膜について使用する技術が開示されている。このポリイミダゾピロロンについては、スルホン酸基を含有するプロトン伝導性高分子電解質膜に関する記述はない。
イオン交換容量は滴定法により測定した。約100mgのフィルムサンプルを50mLの飽和食塩水に2日間浸漬させた。フィルムサンプルから解離したプロトンイオンを0.01規定の水酸化ナトリウム水溶液により、滴定しイオン交換容量を求めた。
フィルムサンプルを直径30mmの切片に切り出した後、ポリテトラフルオロエチレンホルダー上に設置し、膜抵抗を測定した。測定は水中で行った。電圧端子間距離は3,4,5,6mmとした。温度変化は伝導度測定セルを入れた恒温浴槽内の温度を変えて行った。測定温度範囲は5〜70℃であった。
室温にてイオン交換水と10体積%メタノール水溶液とを、直径30mmのフィルムサンプルを介して接触させ、イオン交換水側のメタノール濃度の時間変化を、1時間掛けてガスクロマトグラフィにて測定した。得られたメタノール濃度増加直線の傾きよりメタノール透過係数を計算した。
フィルムサンプルを30mm×30mmに切り出した後,100mLのイオン交換水を注いだ200mLのサンプル瓶内に入れた。耐水性の評価は、80℃の恒温槽内に蓋を閉じたサンプル瓶を入れて、フィルムサンプルの形状が保持できなくなるまでの時間(単位:時間)とした。
(スルホン酸基含有ポリイミドの合成)
1.72g(5mmol)の2,2’−ベンジジンスルホン酸{式(4)のジアミンに該当}と1.7mLのトリエチルアミンを、45mLのm−クレゾールに添加後、2,2’−ベンジジンスルホン酸が完全に溶解したのを確認してから、1.72g(5mmol)の3,3’−ジアミノベンジジン{式(5)のテトラアミンに該当}を加え、2.68g(10mmol)の1,4,5,8−ナフタレンテトラカルボン酸二無水物と安息香酸1.71gを添加し、80℃で4時間、180℃で10時間加熱撹拌した。
3,3’−ジアミノベンジジンの代わりに、ビス−4−(3−アミノフェノキシ)フェニルスルホンを2.16g(5mmol)用いた以外は実施例1と同様にしてポリイミドを合成し、ポリイミドフィルムを得た後、実施例1と同様にプロトン交換処理した。
3,3’−ジアミノベンジジンの代わりに、4,4’−オキシジアニリンを1.00g(5mmol)用いた以外は実施例1と同様にしてポリイミドを合成し、ポリイミドフィルムを得た後、実施例1と同様にプロトン交換処理した。
Claims (9)
- 前記スルホン酸基含有ポリイミド中、式(2)で示される構造単位と式(3)で示される構造単位との合計に対する式(3)で示される構造単位の割合が5〜95mol%の範囲にある、請求項1に記載の電解質組成物。
- 前記スルホン酸基含有ポリイミドが、ホモポリマーの混合物、ランダムコポリマー、ブロックコポリマーまたはこれらの混合物である、請求項1または2に記載の電解質組成物。
- 前記スルホン酸基含有ポリイミドの数平均分子量Mnが5,000〜10,000,000の範囲にある、請求項1〜4のいずれかに記載の電解質組成物。
- 請求項1〜5のいずれかに記載の電解質組成物からなる固体電解質膜。
- 請求項6に記載の固体電解質膜を用いた固体高分子型燃料電池。
- 請求項1〜5のいずれかに記載の電解質組成物が有機溶媒を含み、当該有機溶媒を含む電解質組成物を基体上に塗布し、その後溶媒を除去する、固体電解質膜の製造方法。
- 請求項8の方法によって作製された固体電解質膜を用いた固体高分子型燃料電池。
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JP2008506144A JP5018769B2 (ja) | 2006-03-23 | 2006-08-15 | 電解質組成物、固体電解質膜および固体高分子型燃料電池 |
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JPPCT/JP2006/305783 | 2006-03-23 | ||
PCT/JP2006/305783 WO2007108118A1 (ja) | 2006-03-23 | 2006-03-23 | 電解質組成物、固体電解質膜および固体高分子型燃料電池 |
JP2008506144A JP5018769B2 (ja) | 2006-03-23 | 2006-08-15 | 電解質組成物、固体電解質膜および固体高分子型燃料電池 |
PCT/JP2006/316036 WO2007108143A1 (ja) | 2006-03-23 | 2006-08-15 | 電解質組成物、固体電解質膜および固体高分子型燃料電池 |
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JP2004269658A (ja) * | 2003-03-07 | 2004-09-30 | Toyota Motor Corp | 分枝化されたスルホン酸化ポリイミド樹脂及びその製造方法、スルホン酸化ポリイミド電解質膜及びその溶液、並びに燃料電池 |
JP4554179B2 (ja) * | 2003-09-09 | 2010-09-29 | 有限会社山口ティー・エル・オー | 架橋スルホン化ポリイミドの製造法及び用途 |
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