JP4650835B2 - 燃料電池用の高分子電解質膜とその製造方法、膜電極接合体および燃料電池 - Google Patents
燃料電池用の高分子電解質膜とその製造方法、膜電極接合体および燃料電池 Download PDFInfo
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- JP4650835B2 JP4650835B2 JP2006165273A JP2006165273A JP4650835B2 JP 4650835 B2 JP4650835 B2 JP 4650835B2 JP 2006165273 A JP2006165273 A JP 2006165273A JP 2006165273 A JP2006165273 A JP 2006165273A JP 4650835 B2 JP4650835 B2 JP 4650835B2
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- Prior art keywords
- phosphoric acid
- polymer
- electrolyte membrane
- polymer electrolyte
- fuel cell
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- 239000012528 membrane Substances 0.000 title claims description 125
- 239000005518 polymer electrolyte Substances 0.000 title claims description 103
- 239000000446 fuel Substances 0.000 title claims description 61
- 238000004519 manufacturing process Methods 0.000 title claims description 25
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 270
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 132
- 229920000642 polymer Polymers 0.000 claims description 83
- 239000000178 monomer Substances 0.000 claims description 77
- 238000006116 polymerization reaction Methods 0.000 claims description 34
- 229920000307 polymer substrate Polymers 0.000 claims description 32
- 239000003054 catalyst Substances 0.000 claims description 23
- 125000004432 carbon atom Chemical group C* 0.000 claims description 22
- 238000009792 diffusion process Methods 0.000 claims description 14
- 239000003999 initiator Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 13
- 238000012719 thermal polymerization Methods 0.000 claims description 11
- 229910019142 PO4 Inorganic materials 0.000 claims description 10
- 239000010452 phosphate Substances 0.000 claims description 10
- SEILKFZTLVMHRR-UHFFFAOYSA-N 2-phosphonooxyethyl 2-methylprop-2-enoate Chemical group CC(=C)C(=O)OCCOP(O)(O)=O SEILKFZTLVMHRR-UHFFFAOYSA-N 0.000 claims description 9
- -1 alkylene glycol methacrylate Chemical compound 0.000 claims description 7
- WDHYRUBXLGOLKR-UHFFFAOYSA-N phosphoric acid;prop-2-enoic acid Chemical compound OC(=O)C=C.OP(O)(O)=O WDHYRUBXLGOLKR-UHFFFAOYSA-N 0.000 claims description 6
- 239000002904 solvent Substances 0.000 claims description 6
- 150000001336 alkenes Chemical group 0.000 claims description 5
- 230000000379 polymerizing effect Effects 0.000 claims description 5
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 4
- 229910052731 fluorine Inorganic materials 0.000 claims description 4
- 239000011737 fluorine Substances 0.000 claims description 4
- 239000011148 porous material Substances 0.000 claims description 4
- 229920002818 (Hydroxyethyl)methacrylate Polymers 0.000 claims description 3
- BRWBXCPVJZQRHJ-UHFFFAOYSA-N 2-phosphonooxypropyl 2-methylprop-2-enoate Chemical compound OP(=O)(O)OC(C)COC(=O)C(C)=C BRWBXCPVJZQRHJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 3
- 239000004697 Polyetherimide Substances 0.000 claims description 3
- 239000004642 Polyimide Substances 0.000 claims description 3
- 239000004734 Polyphenylene sulfide Substances 0.000 claims description 3
- 150000001345 alkine derivatives Chemical class 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims description 3
- YVURAEQQLUQPFO-UHFFFAOYSA-N phosphoric acid;styrene Chemical compound OP(O)(O)=O.C=CC1=CC=CC=C1 YVURAEQQLUQPFO-UHFFFAOYSA-N 0.000 claims description 3
- 229920002492 poly(sulfone) Polymers 0.000 claims description 3
- 229920006393 polyether sulfone Polymers 0.000 claims description 3
- 229920002530 polyetherether ketone Polymers 0.000 claims description 3
- 229920001601 polyetherimide Polymers 0.000 claims description 3
- 229920001721 polyimide Polymers 0.000 claims description 3
- 229920000069 polyphenylene sulfide Polymers 0.000 claims description 3
- 229920001643 poly(ether ketone) Polymers 0.000 claims description 2
- 235000011007 phosphoric acid Nutrition 0.000 description 111
- 230000000052 comparative effect Effects 0.000 description 20
- 238000000034 method Methods 0.000 description 10
- 125000002467 phosphate group Chemical group [H]OP(=O)(O[H])O[*] 0.000 description 10
- 239000000047 product Substances 0.000 description 10
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 9
- 239000003792 electrolyte Substances 0.000 description 9
- 239000007788 liquid Substances 0.000 description 9
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 8
- 230000014759 maintenance of location Effects 0.000 description 8
- 239000000126 substance Substances 0.000 description 8
- 230000007423 decrease Effects 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- 239000004693 Polybenzimidazole Substances 0.000 description 6
- 229920002480 polybenzimidazole Polymers 0.000 description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 5
- 229910002091 carbon monoxide Inorganic materials 0.000 description 5
- 239000001257 hydrogen Substances 0.000 description 5
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- 238000005470 impregnation Methods 0.000 description 5
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 5
- 239000004810 polytetrafluoroethylene Substances 0.000 description 5
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
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- 230000000694 effects Effects 0.000 description 3
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- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 3
- 125000000542 sulfonic acid group Chemical group 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- KMNCBSZOIQAUFX-UHFFFAOYSA-N 2-ethoxy-1,2-diphenylethanone Chemical compound C=1C=CC=CC=1C(OCC)C(=O)C1=CC=CC=C1 KMNCBSZOIQAUFX-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 2
- 239000004342 Benzoyl peroxide Substances 0.000 description 2
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 2
- 229920000557 Nafion® Polymers 0.000 description 2
- QYKIQEUNHZKYBP-UHFFFAOYSA-N Vinyl ether Chemical class C=COC=C QYKIQEUNHZKYBP-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 125000002947 alkylene group Chemical group 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229960003328 benzoyl peroxide Drugs 0.000 description 2
- 235000019400 benzoyl peroxide Nutrition 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 229920002313 fluoropolymer Polymers 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 229920001523 phosphate polymer Polymers 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000002574 poison Substances 0.000 description 2
- 231100000614 poison Toxicity 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- FRAXJROUCGADSN-UHFFFAOYSA-N 2-ethoxy-1,2-diphenylethanone Chemical compound C=1C=CC=CC=1C(OCC)C(=O)C1=CC=CC=C1.C=1C=CC=CC=1C(OCC)C(=O)C1=CC=CC=C1 FRAXJROUCGADSN-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000003016 phosphoric acids Chemical class 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 229920000867 polyelectrolyte Polymers 0.000 description 1
- 229920000137 polyphosphoric acid Polymers 0.000 description 1
- 238000010526 radical polymerization reaction Methods 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
Classifications
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/20—Manufacture of shaped structures of ion-exchange resins
- C08J5/22—Films, membranes or diaphragms
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- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
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- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/06—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of other non-metallic substances
- H01B1/12—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of other non-metallic substances organic substances
- H01B1/122—Ionic conductors
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- H01M8/103—Polymeric electrolyte materials characterised by the chemical structure of the main chain of the ion-conducting polymer having nitrogen, e.g. sulfonated polybenzimidazoles [S-PBI], polybenzimidazoles with phosphoric acid, sulfonated polyamides [S-PA] or sulfonated polyphosphazenes [S-PPh]
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
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Description
リン酸を含浸した後、1Hz〜1MHzの周波数の範囲で、10mVの電圧バイアスを加えて温度をスキャンし、抵抗を測定することによってイオン伝導度を評価した。
EGMPモノマー6g及びベンゾインエチルエーテル0.33gをTHF100mlに入れた後、30分間攪拌して共に溶解させて、リン酸モノマー溶液を製造した。上記リン酸モノマー溶液に親水処理したPTFE20gを30分間浸漬させた後に取り出して、360nmの波長を有するUVランプを利用してUV重合を行った。UVは、UVランプで20分間照射させた。
EGMPモノマー6g及びAIBN0.44gをTHF100mlに入れた後、30分間攪拌して共に溶解させて、リン酸モノマー溶液を製造した。上記リン酸モノマー溶液に親水処理したPTFE20gを30分間浸漬させた後に取り出して、80℃の真空オーブンで60分間重合した。
親水処理されたPTFE膜に、リン酸のみを80℃で1時間含浸させた。上記のように製造されたPTFE電解質膜を利用して、上記方法によってイオン伝導度を測定して、図4に示した。
PBI膜に、リン酸のみを60℃で30時間含浸させた。上記のように製造されたPBI電解質膜を利用して、上記方法によってイオン伝導度を測定して図4及び図5に示した。
EGMPの代わりに、同じ質量のPEGMAを使用し、開始剤としてベンゾインエチルエーテル0.24gを使用した点を除いては、実施例1と同じ方法で高分子電解質膜を製造した。
上記実施例1で製造した高分子電解質膜及び商用電極(E−TEK社製)を利用して単位電池を製造した。電極の触媒担持量は、2mg/cm2であった。無加湿の条件で水素100ccm、空気300ccmの流量で流しつつ、電流の密度による電池電圧を測定して図7に示した。また、試験を開始してから、6時間が経過した後の結果も図7に示した。
前記比較例2で製造した高分子電解質膜を使用したことを除いては、前記実施例3と同じ方法で単位電池を製造した。電流密度による電池電圧を測定して、図7及び図8に示した。
上記実施例2で製造した高分子電解質膜を使用したことを除いては、上記実施例3と同じ方法で単位電池を製造した。電流密度による電池電圧を測定して図8に示した。また、試験を開始してから40時間が経過した後の結果も図8に示した。
リン酸溶液に4時間含浸させた点を除いては、実施例1と同じ方法で高分子電解質膜を製造した。前記のように製造した高分子電解質膜にホットプレス装置で6kgf/cm2の圧力を加えて、経時的な重さの変化で保液能力を測定した。本試験は、高温での効果を調べるために、150℃で行った。その結果を下記表1に表した。
リン酸溶液に4時間含浸させた点を除いては、比較例1と同じ方法で高分子電解質膜を製造した。前記のように製造した高分子電解質膜を利用して、実施例5と同じ方法で保液能力を測定した。その結果を下記表1に表した。
Claims (19)
- (a)多孔性高分子基材と、
(b)前記多孔性高分子基材の気孔間に存在する、リン酸基を含有するモノマーの重合体であるリン酸ポリマーと、
(c)前記多孔性高分子基材中に含浸されたリン酸と、
を含み、
前記リン酸ポリマーの密度は、前記燃料電池用の高分子電解質膜の表面へ行くほど増加することを特徴とする、燃料電池用の高分子電解質膜。 - 前記燃料電池用の高分子電解質膜全体の膜厚に対して当該燃料電池用の高分子電解質膜の各表面から20%の厚さ内に含まれたリン酸ポリマーの平均密度は、前記燃料電池用の高分子電解質膜の中心側の残りの60%の厚さ内に含まれたリン酸ポリマーの平均密度の1.5倍〜100倍であることを特徴とする、請求項1に記載の燃料電池用の高分子電解質膜。
- 前記燃料電池用の高分子電解質膜全体の膜厚に対して当該燃料電池用の高分子電解質膜の各表面から20%の厚さ内に含まれたリン酸ポリマーの平均密度は、前記燃料電池用の高分子電解質膜の中心側の残りの60%の厚さ内に含まれたリン酸ポリマーの平均密度の3倍〜50倍であることを特徴とする、請求項2に記載の燃料電池用の高分子電解質膜。
- 前記リン酸は、前記多孔性高分子基材全体に、均一に分布することを特徴とする、請求項1に記載の燃料電池用の高分子電解質膜。
- 前記燃料電池用の高分子電解質膜の中心側へ行くほど、前記リン酸の密度が増加することを特徴とする、請求項1に記載の燃料電池用の高分子電解質膜。
- 前記多孔性高分子基材は、親水性であるか、または親水処理されたものであることを特徴とする、請求項1に記載の高分子電解質膜。
- 前記多孔性高分子基材は、フッ素系高分子、ポリイミド系高分子、ポリエーテルイミド系高分子、ポリフェニレンスルフィド系高分子、ポリスルホン系高分子、ポリエーテルスルホン系高分子、ポリエーテルケトン系高分子、ポリエーテルエーテルケトン系高分子、またはポリフェニルキノキサリン系高分子であることを特徴とする、請求項1に記載の高分子電解質膜。
- (a)分子内に一つ以上のリン酸基及び一つ以上の不飽和結合を有するリン酸モノマーと開始剤とを溶媒に溶解させて、リン酸モノマー溶液を製造する工程と、
(b)前記リン酸モノマー溶液を、親水性の多孔性高分子基材または親水処理された多孔性高分子基材に含浸させる工程と、
(c)前記多孔性高分子基材に含浸された前記リン酸モノマーを重合する工程と、
(d)前記(c)の結果物にリン酸を含浸する工程と、
を含むことを特徴とする、燃料電池用の高分子電解質膜の製造方法。 - 前記リン酸モノマーは、炭素数2〜20のオレフィン系のモノマーであることを特徴とする、請求項8に記載の燃料電池用の高分子電解質膜の製造方法。
- 前記リン酸モノマーは、炭素数2〜20のアルケン系リン酸モノマー、炭素数2〜20のアルキン系リン酸モノマー、炭素数3〜20の(メタ)アクリレート系リン酸モノマー、炭素数4〜20のジ(メタ)アクリレート系リン酸モノマー、炭素数8〜20のスチレン系リン酸モノマーまたはこれらリン酸モノマーの混合物であることを特徴とする、請求項8に記載の燃料電池用の高分子電解質膜の製造方法。
- 前記リン酸モノマーは、炭素数6〜20のアルキレングリコールメタクリレートホスフェートであることを特徴とする、請求項8に記載の燃料電池用の高分子電解質膜の製造方法。
- 前記リン酸モノマーは、エチレングリコールメタクリレートホスフェートまたはプロピレングリコールメタクリレートホスフェートであることを特徴とする、請求項8に記載の燃料電池用の高分子電解質膜の製造方法。
- 前記リン酸モノマーの分子量は、100〜800であることを特徴とする、請求項8に記載の燃料電池用の高分子電解質膜の製造方法。
- 前記リン酸モノマーの含量は、前記多孔性高分子基材100質量部に対して、3〜50質量部であり、
前記開始剤の含量は、前記多孔性高分子基材100質量部に対して、0.3〜10質量部であることを特徴とする、請求項8に記載の燃料電池用の高分子電解質膜の製造方法。 - 前記重合は、熱重合またはUV重合であることを特徴とする、請求項8に記載の燃料電池用の高分子電解質膜の製造方法。
- 前記熱重合は、60〜120℃で、20分〜80分間行うことを特徴とする、請求項15に記載の燃料電池用の高分子電解質膜の製造方法。
- 前記UV重合は、UVランプを利用して5〜60分間行うことを特徴とする、請求項15に記載の燃料電池用の高分子電解質膜の製造方法。
- 触媒層及び拡散層を備えるカソードと、
触媒層及び拡散層を備えるアノードと、
前記カソードと前記アノードとの間に設けられる、請求項1〜請求項7のうち何れか1項に記載の燃料電池用の高分子電解質膜と、
を備えることを特徴とする、膜電極接合体。 - 触媒層及び拡散層を備えるカソードと、触媒層及び拡散層を備えるアノードと、前記カソードと前記アノードとの間に設けられる、高分子電解質膜と、を備える燃料電池において、
前記高分子電解質膜は、請求項1〜請求項7のうち何れか1項に記載の燃料電池用の高分子電解質膜であることを特徴とする、燃料電池。
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