JP2006222024A5 - - Google Patents

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JP2006222024A5
JP2006222024A5 JP2005036262A JP2005036262A JP2006222024A5 JP 2006222024 A5 JP2006222024 A5 JP 2006222024A5 JP 2005036262 A JP2005036262 A JP 2005036262A JP 2005036262 A JP2005036262 A JP 2005036262A JP 2006222024 A5 JP2006222024 A5 JP 2006222024A5
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Prior art keywords
gas diffusion
diffusion electrode
polymer electrolyte
fuel cell
carbon
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JP2005036262A
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JP2006222024A (en
JP4959945B2 (en
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Priority claimed from JP2005036262A external-priority patent/JP4959945B2/en
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Publication of JP2006222024A5 publication Critical patent/JP2006222024A5/ja
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Claims (4)

炭素短繊維と、炭素短繊維同士を結着させる炭素材とを含む抄紙体を有する固体高分子型燃料電池用ガス拡散電極基材であって、炭素短繊維の平均直径が2種類以上であり二次元平面内における該炭素短繊維の配向度が1.6以上である固体高分子型燃料電池用ガス拡散電極基材。 A gas diffusion electrode base material for a polymer electrolyte fuel cell having a papermaking body containing carbon short fibers and a carbon material for binding the carbon short fibers, wherein the average diameter of the carbon short fibers is two or more. A gas diffusion electrode substrate for a polymer electrolyte fuel cell, wherein the degree of orientation of the short carbon fibers in a two-dimensional plane is 1.6 or more. 炭素短繊維を抄紙方向に配向させつつ抄紙して炭素繊維紙を得る抄紙工程、
該炭素繊維紙に樹脂を含浸させる樹脂含浸工程、
該樹脂が含浸した炭素繊維紙を加熱し、該樹脂を炭化させる炭化工程
を有する請求項1記載の固体高分子型燃料電池用ガス拡散電極基材の製造方法。
A paper making process for obtaining carbon fiber paper by making paper while orienting short carbon fibers in the paper making direction;
A resin impregnation step of impregnating the carbon fiber paper with a resin;
The method for producing a gas diffusion electrode substrate for a polymer electrolyte fuel cell according to claim 1, further comprising a carbonization step of heating the carbon fiber paper impregnated with the resin to carbonize the resin.
高分子電解質膜と、アノード側およびカソード側ガス拡散電極を有する固体高分子型燃料電池用膜−電極接合体において、
該アノード側およびカソード側ガス拡散電極はいずれも触媒層およびガス拡散電極基材を有し、アノード側およびカソード側のガス拡散電極基材のうちの一方もしくは両方が請求項1記載のガス拡散電極基材であることを特徴とする固体高分子型燃料電池用膜−電極接合体。
In a membrane-electrode assembly for a polymer electrolyte fuel cell having a polymer electrolyte membrane and anode-side and cathode-side gas diffusion electrodes,
The gas diffusion electrode according to claim 1, wherein each of the anode side and cathode side gas diffusion electrodes has a catalyst layer and a gas diffusion electrode substrate, and one or both of the gas diffusion electrode substrates on the anode side and the cathode side are A membrane-electrode assembly for a polymer electrolyte fuel cell, characterized by being a substrate.
高分子電解質膜;アノード側およびカソード側ガス拡散電極;ならびにアノード側およびカソード側セパレーターを有する固体高分子型燃料電池において、
該アノード側およびカソード側ガス拡散電極はいずれも触媒層およびガス拡散電極基材を有し、
アノード側およびカソード側の少なくとも一方において、ガス拡散電極基材が請求項1記載のガス拡散電極基材であってガス拡散電極基材の炭素短繊維配向方向とセパレーターが有するガス流路方向とが交わる角度が45度を超えることを特徴とする固体高分子型燃料電池。
In a polymer electrolyte fuel cell having a polymer electrolyte membrane; an anode side and cathode side gas diffusion electrode; and an anode side and cathode side separator,
The anode side and cathode side gas diffusion electrodes both have a catalyst layer and a gas diffusion electrode substrate,
The gas diffusion electrode substrate according to claim 1, wherein the gas diffusion electrode substrate has a carbon short fiber orientation direction of the gas diffusion electrode substrate and a gas flow path direction of the separator on at least one of the anode side and the cathode side. A solid polymer fuel cell, wherein an intersecting angle exceeds 45 degrees.
JP2005036262A 2005-02-14 2005-02-14 Polymer electrolyte fuel cell Expired - Fee Related JP4959945B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005036262A JP4959945B2 (en) 2005-02-14 2005-02-14 Polymer electrolyte fuel cell

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005036262A JP4959945B2 (en) 2005-02-14 2005-02-14 Polymer electrolyte fuel cell

Related Child Applications (1)

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JP2010245072A Division JP2011049179A (en) 2010-11-01 2010-11-01 Membrane-electrode assembly for polymer electrolyte fuel cell and gas diffusion electrode substrate

Publications (3)

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JP2006222024A JP2006222024A (en) 2006-08-24
JP2006222024A5 true JP2006222024A5 (en) 2008-03-06
JP4959945B2 JP4959945B2 (en) 2012-06-27

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JP2005036262A Expired - Fee Related JP4959945B2 (en) 2005-02-14 2005-02-14 Polymer electrolyte fuel cell

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Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5398297B2 (en) * 2009-02-20 2014-01-29 三菱レイヨン株式会社 Method for producing porous carbon electrode substrate
KR101481187B1 (en) * 2009-12-03 2015-01-09 현대자동차주식회사 Gas diffusion layer for fuel cell applications and Method of Manufacturing the same
KR101282620B1 (en) * 2010-12-03 2013-07-12 기아자동차주식회사 Fuel Cell Stack with Enhanced Freeze/Thaw Durability and method of manufacturing same
JP5915283B2 (en) * 2012-03-14 2016-05-11 日産自動車株式会社 Gas diffusion layer and fuel cell using the same
GB201401952D0 (en) * 2014-02-05 2014-03-19 Johnson Matthey Fuel Cells Ltd Gas diffusion substrate
KR20200068178A (en) * 2018-12-05 2020-06-15 주식회사 제이앤티지 Carbon substrate for gas diffusion layer including carbon fibers with unidirectional orientation and gas diffusion layer emplying the same
WO2022198583A1 (en) * 2021-03-25 2022-09-29 宁德新能源科技有限公司 Carbon current collector, electrochemical device comprising carbon current collector, and electronic device
WO2022210008A1 (en) 2021-04-02 2022-10-06 東レ株式会社 Carbon sheet, method for manufacturing same, gas diffusion electrode, and fuel cell

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991006131A1 (en) * 1989-10-17 1991-05-02 Kureha Kagaku Kogyo Kabushiki Kaisha Porous carbon material equipped with flat sheet-like ribs and production method thereof
JPH07135001A (en) * 1993-11-12 1995-05-23 Toyota Motor Corp Fuel cell and electrode for fuel cell
JP3521619B2 (en) * 1996-06-07 2004-04-19 東レ株式会社 Carbon fiber paper and porous carbon plate
WO2001056103A1 (en) * 2000-01-27 2001-08-02 Mitsubishi Rayon Co., Ltd. Porous carbon electrode material, method for manufacturing the same, and carbon fiber paper
JP2003183994A (en) * 2001-10-09 2003-07-03 Mitsubishi Rayon Co Ltd Carbon fiber paper, and porous carbon electrode material for fuel battery using the same

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