JP2004207231A5 - - Google Patents

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JP2004207231A5
JP2004207231A5 JP2003409494A JP2003409494A JP2004207231A5 JP 2004207231 A5 JP2004207231 A5 JP 2004207231A5 JP 2003409494 A JP2003409494 A JP 2003409494A JP 2003409494 A JP2003409494 A JP 2003409494A JP 2004207231 A5 JP2004207231 A5 JP 2004207231A5
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Japan
Prior art keywords
electrolyte membrane
fuel cell
electrode assembly
carbon fiber
woven fabric
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Pending
Application number
JP2003409494A
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Japanese (ja)
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JP2004207231A (en
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Priority to JP2003409494A priority Critical patent/JP2004207231A/en
Priority claimed from JP2003409494A external-priority patent/JP2004207231A/en
Publication of JP2004207231A publication Critical patent/JP2004207231A/en
Publication of JP2004207231A5 publication Critical patent/JP2004207231A5/ja
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Claims (7)

高分子電解質膜および前記高分子電解質膜を挟む一対の電極からなり、前記電極が前記高分子電解質膜に接する触媒層および前記触媒層に接する撥水層を有するガス拡散層からなる電解質膜−電極接合体であって、
前記ガス拡散層の基材が、電子伝導性炭素繊維からなる縦糸および横糸で織った炭素繊維織布であり、前記縦糸および横糸の交点間に開口が形成されていることを特徴とする燃料電池用電解質膜−電極接合体。
An electrolyte membrane-electrode comprising a polymer electrolyte membrane and a pair of electrodes sandwiching the polymer electrolyte membrane, wherein the electrode comprises a catalyst layer in contact with the polymer electrolyte membrane and a gas diffusion layer having a water repellent layer in contact with the catalyst layer A joined body,
A fuel cell characterized in that the base material of the gas diffusion layer is a carbon fiber woven fabric woven with warp and weft made of electron conductive carbon fibers, and an opening is formed between the intersections of the warp and weft. Electrolyte membrane-electrode assembly for use.
前記炭素繊維織布の縦糸密度をZ本/cm、横糸密度をW本/cm、縦糸の太さをXmm、および横糸の太さをYmmとした場合に、
1/1500≦(10/W−Y)(10/Z−X)/XY≦1/5
の関係を満たす請求項1記載の燃料電池用電解質膜−電極接合体。
When the warp yarn density of the carbon fiber woven fabric is Z / cm, the weft yarn density is W / cm, the warp yarn thickness is X mm, and the weft yarn thickness is Y mm,
1/1500 ≦ (10 / W−Y) (10 / Z−X) / XY ≦ 1/5
The electrolyte membrane-electrode assembly for a fuel cell according to claim 1 satisfying the relationship:
前記炭素繊維織布の厚さが、0.05〜0.30mmの範囲にある請求項1または2記載の燃料電池用電解質膜−電極接合体。   The electrolyte membrane-electrode assembly for a fuel cell according to claim 1 or 2, wherein the carbon fiber woven fabric has a thickness in the range of 0.05 to 0.30 mm. 前記炭素繊維織布の密度が、0.32〜0.42g/ccの範囲にある請求項1〜3のいずれかに記載の燃料電池用電解質膜−電極接合体。   The electrolyte membrane-electrode assembly for a fuel cell according to any one of claims 1 to 3, wherein a density of the carbon fiber woven fabric is in a range of 0.32 to 0.42 g / cc. 前記炭素繊維織布の縦糸密度および横糸密度のいずれか一方が16〜45本/cmの範囲にあり,かつ他方が12〜40本/cmの範囲にある請求項1〜4のいずれかに記載の燃料電池用電解質膜−電極接合体。   Either one of the warp density and the weft density of the carbon fiber woven fabric is in the range of 16 to 45 yarns / cm, and the other is in the range of 12 to 40 yarns / cm. An electrolyte membrane-electrode assembly for a fuel cell. 請求項1〜5のいずれかに記載の燃料電池用電解質膜−電極接合体を具備すること、を特徴とする燃料電池。A fuel cell comprising the fuel cell electrolyte membrane-electrode assembly according to any one of claims 1 to 5. 請求項6記載の燃料電池の運転方法であって、A method of operating a fuel cell according to claim 6,
前記一対の電極のうちの一方に加湿した燃料ガスを供給し、前記一対の電極のうちの他方の電極に加湿した酸化剤ガスを供給し、Supplying a humidified fuel gas to one of the pair of electrodes, supplying a humidified oxidant gas to the other of the pair of electrodes,
前記燃料ガスの露点および前記酸化剤ガスの露点を、前記電解質膜−電極接合体の運転時の温度に対して同一温度あるいは5℃以内の範囲内で低い温度にコントロールして発電させることを特徴とする燃料電池の運転方法。Electric power is generated by controlling the dew point of the fuel gas and the dew point of the oxidant gas to the same temperature or lower temperature within 5 ° C. with respect to the temperature during operation of the electrolyte membrane-electrode assembly. A fuel cell operating method.
JP2003409494A 2002-12-11 2003-12-08 Electrolyte membrane-electrode junction body for fuel cell and fuel cell operating method using it Pending JP2004207231A (en)

Priority Applications (1)

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JP2003409494A JP2004207231A (en) 2002-12-11 2003-12-08 Electrolyte membrane-electrode junction body for fuel cell and fuel cell operating method using it

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002359314 2002-12-11
JP2003409494A JP2004207231A (en) 2002-12-11 2003-12-08 Electrolyte membrane-electrode junction body for fuel cell and fuel cell operating method using it

Publications (2)

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JP2004207231A JP2004207231A (en) 2004-07-22
JP2004207231A5 true JP2004207231A5 (en) 2006-10-26

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Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4054837B2 (en) 2005-01-14 2008-03-05 松下電器産業株式会社 Fuel cell stack and fuel cell
KR100742739B1 (en) 2005-07-15 2007-07-25 경상대학교산학협력단 Thread-type flexible battery
CN101425584B (en) * 2007-11-02 2011-05-04 清华大学 Fuel cell membrane electrode and preparation thereof
CN101635362B (en) 2008-07-25 2012-03-28 清华大学 Membrane electrode and fuel cell adopting same
US9077042B2 (en) 2008-07-25 2015-07-07 Tsinghua University Membrane electrode assembly and biofuel cell using the same
CN101752567B (en) 2008-12-17 2012-09-19 清华大学 Membrane electrode and fuel cell thereof
CN101752568B (en) 2008-12-17 2012-06-20 清华大学 Membrane electrode and biological fuel cell thereof
KR101072289B1 (en) 2010-07-02 2011-10-11 주식회사 샤인 Battery electrode assembly having fiber-shaped structures
KR101072292B1 (en) 2010-08-14 2011-10-11 주식회사 샤인 Electrode assembly having fiber-shaped structures and battery
JP6183065B2 (en) * 2012-08-31 2017-08-23 三菱ケミカル株式会社 Porous carbon electrode and manufacturing method thereof

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US4293396A (en) * 1979-09-27 1981-10-06 Prototech Company Thin carbon-cloth-based electrocatalytic gas diffusion electrodes, and electrochemical cells comprising the same
JPH07169469A (en) * 1993-12-16 1995-07-04 Toyota Motor Corp Electrode
JP3644007B2 (en) * 1998-08-11 2005-04-27 株式会社豊田中央研究所 Fuel cell
JP2000299113A (en) * 1999-02-10 2000-10-24 Toray Ind Inc Conductive sheet and electrode base material for fuel cell using it
JP4547754B2 (en) * 2000-02-10 2010-09-22 三菱樹脂株式会社 Pitch-based carbon fiber fabric
JP4475743B2 (en) * 2000-05-31 2010-06-09 パナソニック株式会社 Gas diffusion layer
CN1220802C (en) * 2000-11-24 2005-09-28 东邦泰纳克丝株式会社 Carbon fiber sheet and method for producing the same
JP4329296B2 (en) * 2001-02-28 2009-09-09 三菱化学株式会社 Conductive carbon fiber sheet and polymer electrolyte fuel cell
JP2002324557A (en) * 2001-04-27 2002-11-08 Mitsubishi Electric Corp Solid polymer fuel cell
JP3442061B2 (en) * 2001-05-29 2003-09-02 東邦テナックス株式会社 Flat carbon fiber spun yarn woven structural material
JP2003163009A (en) * 2001-11-27 2003-06-06 Asahi Glass Co Ltd Solid polymer fuel battery
JP4283010B2 (en) * 2002-03-13 2009-06-24 三菱化学株式会社 Conductive carbonaceous fiber woven fabric and polymer electrolyte fuel cell using the same
JP3972705B2 (en) * 2002-03-26 2007-09-05 松下電器産業株式会社 Electrolyte membrane electrode assembly, method for producing the same, and fuel cell

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