JP4099519B2 - 燃料電池用膜電極接合体、高分子電解質型燃料電池用セル、高分子電解質型燃料電池及び膜電極接合体の製造方法 - Google Patents
燃料電池用膜電極接合体、高分子電解質型燃料電池用セル、高分子電解質型燃料電池及び膜電極接合体の製造方法 Download PDFInfo
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Description
本発明の第1態様によれば、高分子電解質膜と該高分子電解質膜の両表面の周縁部より内側の中央領域に、それぞれ触媒層と該触媒層よりも面積が大きく前記触媒層から周縁が突出した拡散層とが積層された一対の電極層とを備え、前記拡散層の突出部分と高分子電解質膜の周縁部との間に隙間が設けられた膜電極接合体本体部と、
前記高分子電解質膜の周縁部を前記一対の電極層に対し間隔を有して挟みかつ該高分子電解質膜の外縁を囲むように形成された板状の熱可塑性樹脂製の枠体と、
前記枠体の両面それぞれに設けられた熱可塑性樹脂製のガスケットとを備え、
前記ガスケットは、前記枠体の内縁に沿って設けられ、前記枠体の内縁から前記間隔を被覆する環状部と、前記環状部に設けられ前記枠体の内縁に沿って延在するリブと、前記拡散層の突出部分と高分子電解質膜の周縁部との間の隙間内を充填する隙間充填部とを備える、燃料電池用膜電極接合体を提供する。
前記アノードセパレータ及びカソードセパレータは、前記膜電極接合体本体部の周囲に設けられた環状部に当接する環状部当接部分が、前記環状部の外郭形状と同形状に設けられ、前記環状部と前記環状部当接部分との間に隙間を生じさせないように構成されている高分子電解質型燃料電池用セルを提供する。
第1金型と第2金型との間に熱可塑性樹脂を流し込んで、枠内縁に平坦部が形成された枠状の成形部材を成形し、
当該膜電極接合体本体部の周縁部が前記平坦部に位置するように前記膜電極接合体本体部が前記成形部材の枠内に配置された前記成形部材が嵌合した状態の第1金型に第3金型を接合して、前記第1金型と前記第3金型との間に熱可塑性樹脂を流し込んで、前記膜電極接合体本体部が接合された状態の枠体を成形し、
前記膜電極接合体本体部が接合された枠体を間に挟みながら、第4金型及び第5金型を接合して、前記第4金型と第5金型との間に溶融樹脂を流し込んで、前記枠体の内縁に沿って設けられ、前記枠体の内縁から前記拡散層の外縁までを被覆する環状部と、前記環状部に設けられ前記枠体の内縁に沿って延在するリブと、前記拡散層の突出部分と高分子電解質膜の周縁部との間の隙間内を充填する隙間充填部とを備えるガスケットを成型する、膜電極接合体の製造方法を提供する。
したがって、燃料利用率を向上させることができ、安定した発電を行うことができる。また、環状部の頂面にリブを設けることにより、膜電極接合体とセパレータの間の密閉性を高めることができる。
Claims (9)
- 高分子電解質膜と該高分子電解質膜の両表面の周縁部より内側の中央領域に、それぞれ触媒層と該触媒層よりも面積が大きく前記触媒層から周縁が突出した拡散層とが積層された一対の電極層とを備え、前記拡散層の突出部分と高分子電解質膜の周縁部との間に隙間が設けられた膜電極接合体本体部と、
前記高分子電解質膜の周縁部を前記一対の電極層に対し間隔を有して挟みかつ該高分子電解質膜の外縁を囲むように形成された板状の熱可塑性樹脂製の枠体と、
前記枠体の両面それぞれに設けられた熱可塑性樹脂製のガスケットとを備え、
前記ガスケットは、前記枠体の内縁に沿って設けられ、前記枠体の内縁から前記間隔を被覆する環状部と、前記環状部に設けられ前記枠体の内縁に沿って延在するリブと、前記拡散層の突出部分と高分子電解質膜の周縁部との間の隙間内を充填する隙間充填部とを備える、燃料電池用膜電極接合体。 - 前記枠体の内縁に沿って延在するリブが設けられている位置は、前記枠体に挟持される前記高分子電解質膜の外周端よりも内側となるように構成されている、請求項1に記載の燃料電池用膜電極接合体。
- 前記拡散層は、前記突出部分の突出幅が、前記拡散層の厚み幅より短い、請求項1に記載の燃料電池用膜電極接合体。
- 前記拡散層は、前記突出部分の端面が前記触媒層側が短くなる方向にテーパー状に構成されている、請求項1に記載の燃料電池用膜電極接合体。
- 前記高分子電解質膜の両表面にそれぞれ設けられた電極層は、その位置が表裏面でそれぞれずれて配置されており、前記間隔の位置が表裏方向で異なる、請求項1に記載の燃料電池用膜電極接合体。
- 前記枠体は、燃料ガス、酸化剤ガスをそれぞれ膜電極接合体本体部に供給するための、マニフォルド孔対を備えており、前記ガスケットの環状部は、前記マニフォルド孔対の周囲に設けられている、請求項1に記載の燃料電池用膜電極接合体。
- 請求項1に記載の膜電極接合体と、当該膜電極接合体を挟むように配設されたアノードセパレータ及びカソードセパレータとを有し、
前記アノードセパレータ及びカソードセパレータは、前記膜電極接合体本体部の周囲に設けられた環状部に当接する環状部当接部分が、前記環状部の外郭形状と同形状に設けられ、前記環状部と前記環状部当接部分との間に隙間を生じさせないように構成されている高分子電解質型燃料電池用セル。 - 請求項7に記載の高分子電解質型燃料電池用セルを2以上積層されて構成されている、高分子電解質型燃料電池。
- 高分子電解質膜の周縁部より内側の両表面に触媒層を設け、当該触媒層の表面に該触媒層よりも大きい面積を有し前記触媒層から周縁が突出して形成された拡散層を積層状態に配置して、前記拡散層の突出部分と高分子電解質膜の周縁部との間に隙間が形成されている膜電極接合体本体部を作製し、
第1金型と第2金型との間に熱可塑性樹脂を流し込んで、枠内縁に平坦部が形成された枠状の成形部材を成形し、
当該膜電極接合体本体部の周縁部が前記平坦部に位置するように前記膜電極接合体本体部が前記成形部材の枠内に配置された前記成形部材が嵌合した状態の第1金型に第3金型を接合して、前記第1金型と前記第3金型との間に熱可塑性樹脂を流し込んで、前記膜電極接合体本体部が接合された状態の枠体を成形し、
前記膜電極接合体本体部が接合された枠体を間に挟みながら、第4金型及び第5金型を接合して、前記第4金型と第5金型との間に溶融樹脂を流し込んで、前記枠体の内縁に沿って設けられ、前記枠体の内縁から前記拡散層の外縁までを被覆する環状部と、前記環状部に設けられ前記枠体の内縁に沿って延在するリブと、前記拡散層の突出部分と高分子電解質膜の周縁部との間の隙間内を充填する隙間充填部とを備えるガスケットを成型する、膜電極接合体の製造方法。
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Application Number | Priority Date | Filing Date | Title |
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JP2006167221 | 2006-06-16 | ||
JP2006167221 | 2006-06-16 | ||
PCT/JP2007/062034 WO2007145291A1 (ja) | 2006-06-16 | 2007-06-14 | 燃料電池用膜電極接合体、高分子電解質型燃料電池用セル、高分子電解質型燃料電池及び膜電極接合体の製造方法 |
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JP4099519B2 true JP4099519B2 (ja) | 2008-06-11 |
JPWO2007145291A1 JPWO2007145291A1 (ja) | 2009-11-12 |
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JP (1) | JP4099519B2 (ja) |
KR (1) | KR100907781B1 (ja) |
CN (1) | CN101356676B (ja) |
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WO (1) | WO2007145291A1 (ja) |
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JP2009217999A (ja) * | 2008-03-07 | 2009-09-24 | Daihatsu Motor Co Ltd | 膜・電極接合体 |
JP5412804B2 (ja) * | 2008-11-19 | 2014-02-12 | 日産自動車株式会社 | 燃料電池スタック |
DE102009016934A1 (de) * | 2009-04-08 | 2010-10-14 | Daimler Ag | Brennstoffzelle, Brennstoffzellenstapel und Verfahren zum Abdichten einer Brennstoffzelle |
JP5381647B2 (ja) * | 2009-11-26 | 2014-01-08 | トヨタ紡織株式会社 | 燃料電池用セパレータ及びその製造方法 |
GB201006403D0 (en) * | 2010-04-16 | 2010-06-02 | Itm Power | Laminated stack |
CA2802412C (en) | 2010-06-15 | 2015-04-07 | Nissan Motor Co., Ltd. | Fuel cell with improved contact surface pressure |
KR20130060322A (ko) * | 2010-10-29 | 2013-06-07 | 유티씨 파워 코포레이션 | 연료전지 조립체 밀봉부 배열체 |
DE102010061865A1 (de) | 2010-11-24 | 2012-05-24 | Behr Gmbh & Co. Kg | Rahmen für eine elektrochemische Energiespeichereinheit |
JP5640785B2 (ja) * | 2011-02-09 | 2014-12-17 | トヨタ自動車株式会社 | 燃料電池セパレータのシール構造 |
JP6168641B2 (ja) * | 2011-05-13 | 2017-07-26 | 日産自動車株式会社 | 燃料電池 |
DE112012003942B4 (de) * | 2011-09-22 | 2020-10-01 | Honda Motor Co., Ltd. | Elektrolyt-Membran-Elektrodenstruktur mit Harz-/Kunstharzrahmen für Brennstoffzellen |
CN103094593B (zh) * | 2011-11-01 | 2015-08-05 | 本田技研工业株式会社 | 燃料电池 |
EP2942830B1 (en) * | 2013-04-18 | 2016-10-26 | Panasonic Intellectual Property Management Co., Ltd. | Solid polymer electrolyte fuel cell |
DE102014221351A1 (de) * | 2014-10-21 | 2016-04-21 | Volkswagen Ag | Brennstoffzelle |
KR101963998B1 (ko) * | 2015-05-13 | 2019-03-29 | 닛산 지도우샤 가부시키가이샤 | 연료 전지 스택 |
CN107710483B (zh) * | 2015-06-15 | 2019-04-09 | 日产自动车株式会社 | 燃料电池用电极构造体、金属隔板、燃料电池单元及燃料电池用电极构造体制作用模具 |
KR102512284B1 (ko) * | 2015-10-02 | 2023-03-22 | 범한퓨얼셀 주식회사 | 막-전극 접합체 및 이의 제조방법 |
WO2018025601A1 (ja) * | 2016-08-02 | 2018-02-08 | Nok株式会社 | ガスケット |
JP6747188B2 (ja) * | 2016-09-01 | 2020-08-26 | 日産自動車株式会社 | 電解質膜とフレームとの接合体 |
JP6790701B2 (ja) * | 2016-10-12 | 2020-11-25 | トヨタ自動車株式会社 | 燃料電池セルの製造方法 |
US10847826B2 (en) * | 2017-02-16 | 2020-11-24 | Panasonic Intelletual Property Management Co., Ltd. | Polymer electrolyte fuel cells and production method thereof |
JP7018580B2 (ja) * | 2017-02-16 | 2022-02-14 | パナソニックIpマネジメント株式会社 | 高分子電解質型燃料電池とその製造方法 |
JP6427215B2 (ja) * | 2017-03-07 | 2018-11-21 | 本田技研工業株式会社 | 固体高分子型燃料電池用フィルム成形品のプレス加工方法及びプレス加工装置 |
CN109473707B (zh) * | 2017-09-08 | 2022-05-31 | 徐煜 | 质子交换膜燃料电池的质子交换膜 |
JP6649939B2 (ja) * | 2017-12-27 | 2020-02-19 | 本田技研工業株式会社 | 発電セル |
JP7257851B2 (ja) * | 2018-12-12 | 2023-04-14 | 現代自動車株式会社 | 燃料電池用弾性体セルフレームおよびその製造方法とそれを用いた単位セル |
TWI762099B (zh) | 2020-12-22 | 2022-04-21 | 財團法人工業技術研究院 | 氣冷式燃料電池電堆 |
US20230049148A1 (en) * | 2021-08-16 | 2023-02-16 | GM Global Technology Operations LLC | Fuel cell having a compliant energy attenuating bumper |
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JP3368907B2 (ja) | 1991-07-17 | 2003-01-20 | 富士電機株式会社 | 固体高分子電解質型燃料電池のシ−ル構造 |
JP4193015B2 (ja) | 1999-11-25 | 2008-12-10 | Nok株式会社 | 燃料電池用ガスケット |
US6977234B2 (en) * | 2001-01-19 | 2005-12-20 | Matsushita Electric Industrial Co., Ltd. | Method for manufacturing fuel cell electrolyte film-electrode bond |
JP4600632B2 (ja) * | 2001-08-24 | 2010-12-15 | Nok株式会社 | 燃料電池用構成部品 |
US20040058227A1 (en) * | 2002-07-09 | 2004-03-25 | Matsushita Electric Industrial Co., Ltd. | Electrolyte membrane-electrode assembly for a fuel cell, fuel cell using the same and method of making the same |
JP4426248B2 (ja) * | 2002-10-29 | 2010-03-03 | 本田技研工業株式会社 | 膜−電極構造体 |
JP4739685B2 (ja) * | 2003-03-14 | 2011-08-03 | パナソニック株式会社 | 高分子電解質型燃料電池 |
US7405019B2 (en) * | 2003-03-14 | 2008-07-29 | Matsushita Electric Industrial Co., Ltd. | Polymer electrolyte fuel cell |
JP4439966B2 (ja) | 2003-04-02 | 2010-03-24 | パナソニック株式会社 | 燃料電池用電解質膜構造、燃料電池用電解質膜−電極接合体構造、及び燃料電池 |
CN1536698B (zh) * | 2003-04-02 | 2010-12-15 | 松下电器产业株式会社 | 燃料电池用电解质膜结构、mea结构及燃料电池 |
JP4130164B2 (ja) | 2003-10-01 | 2008-08-06 | 株式会社竹中工務店 | 梁連結部構造 |
US7851100B2 (en) * | 2004-10-08 | 2010-12-14 | Panasonic Corporation | MEA-gasket assembly and polymer electrolyte fuel cell using same |
KR101270856B1 (ko) * | 2005-04-01 | 2013-06-05 | 파나소닉 주식회사 | Mea, mea의 제조방법 및 고분자 전해질형 연료 전지 |
JP3897808B2 (ja) * | 2005-04-01 | 2007-03-28 | 松下電器産業株式会社 | Mea、meaの製造方法及び高分子電解質形燃料電池 |
JP4975982B2 (ja) * | 2005-06-06 | 2012-07-11 | パナソニック株式会社 | 燃料電池 |
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2007
- 2007-06-14 WO PCT/JP2007/062034 patent/WO2007145291A1/ja active Application Filing
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- 2007-06-14 JP JP2007551498A patent/JP4099519B2/ja active Active
- 2007-06-14 KR KR1020087011096A patent/KR100907781B1/ko not_active IP Right Cessation
- 2007-06-14 DE DE112007000860T patent/DE112007000860B4/de active Active
- 2007-06-14 US US12/096,842 patent/US7709123B2/en active Active
Also Published As
Publication number | Publication date |
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US7709123B2 (en) | 2010-05-04 |
DE112007000860B4 (de) | 2010-08-26 |
DE112007000860T5 (de) | 2009-09-03 |
JPWO2007145291A1 (ja) | 2009-11-12 |
CN101356676B (zh) | 2010-06-02 |
WO2007145291A1 (ja) | 2007-12-21 |
KR20080100804A (ko) | 2008-11-19 |
KR100907781B1 (ko) | 2009-07-15 |
CN101356676A (zh) | 2009-01-28 |
US20090246586A1 (en) | 2009-10-01 |
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