JP2000067874A5 - - Google Patents

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JP2000067874A5
JP2000067874A5 JP1998234374A JP23437498A JP2000067874A5 JP 2000067874 A5 JP2000067874 A5 JP 2000067874A5 JP 1998234374 A JP1998234374 A JP 1998234374A JP 23437498 A JP23437498 A JP 23437498A JP 2000067874 A5 JP2000067874 A5 JP 2000067874A5
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Japan
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fuel cell
pitch
cell according
electrode
reaction layer
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JP1998234374A
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Japanese (ja)
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JP4367983B2 (en
JP2000067874A (en
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Priority claimed from JP23437498A external-priority patent/JP4367983B2/en
Priority to JP23437498A priority Critical patent/JP4367983B2/en
Priority to US09/763,263 priority patent/US6660424B1/en
Priority to CNB998098582A priority patent/CN1190859C/en
Priority to KR10-2001-7001719A priority patent/KR100421708B1/en
Priority to EP99937001A priority patent/EP1117142A4/en
Priority to PCT/JP1999/004312 priority patent/WO2000011741A1/en
Publication of JP2000067874A publication Critical patent/JP2000067874A/en
Publication of JP2000067874A5 publication Critical patent/JP2000067874A5/ja
Publication of JP4367983B2 publication Critical patent/JP4367983B2/en
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Expired - Fee Related legal-status Critical Current

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本発明の燃料電池の製造法は、溶媒に溶かしたフッ化ピッチの溶液を、電極反応層、電極基材、またはガス流路の表面の少なくとも一部分、または電極反応層、電極基材、またはガス流路の表面を構成する原材料に塗布し、溶媒を乾燥、除去することによりフッ化ピッチを固着する工程を有することを特徴とする。
また、本発明は、フッ化ピッチを気相からの析出により、電極反応層、電極基材、またはガス流路の表面の少なくとも一部分、または電極反応層、電極基材、またはガス流路の表面を構成する原材料に固着する工程を含むことを特徴とする。
また、電極基材の電極反応層側の界面部分に、気相からの析出によりフッ化ピッチを形成することが有用である。 In the method for producing a fuel cell of the present invention, a solution of fluorinated pitch dissolved in a solvent is applied to at least a part of the surface of an electrode reaction layer, an electrode base material, or a gas flow path, or an electrode reaction layer, an electrode base material, or a gas. It is characterized by having a step of fixing the fluoride pitch by applying it to a raw material constituting the surface of the flow path and drying and removing the solvent.
Further, in the present invention, the fluoride pitch is precipitated from the gas phase to at least a part of the surface of the electrode reaction layer, the electrode base material, or the gas flow path, or the surface of the electrode reaction layer, the electrode base material, or the gas flow path. It is characterized by including a step of adhering to the raw materials constituting the above.
Further, it is useful to form a fluorine pitch by precipitation from the gas phase at the interface portion of the electrode base material on the electrode reaction layer side.

Claims (11)

電極反応層と電極基材とからなる一対の電極、前記一対の電極で挟持された電解質層、および前記電極の一方に少なくとも水素を含む燃料を供給分配し、前記電極の他方に少なくとも酸素を含む酸化剤ガスを供給分配するガス流路を具備し、前記電極反応層、前記電極基材、または前記ガス流路の流路表面の少なくとも一部分に、フッ化ピッチまたはフッ化黒鉛を配したことを特徴とする燃料電池。A pair of electrodes composed of an electrode reaction layer and an electrode base material, an electrolyte layer sandwiched between the pair of electrodes, and a fuel containing at least hydrogen are supplied to one of the electrodes, and at least oxygen is contained in the other of the electrodes A gas flow path for supplying and distributing an oxidant gas, and fluorinated pitch or fluorinated graphite is disposed on at least a part of the surface of the electrode reaction layer, the electrode base material, or the gas flow path; A fuel cell. 前記フッ化ピッチの平均分子量が、５００以上、１００００以下である請求項１記載の燃料電池。Average molecular weight of the fluorinated pitch is 500 or more, the fuel cell according to claim 1, wherein less than or equal to 10000. 前記フッ化ピッチに含まれるフッ素とカーボンの比（Ｆ／Ｃ）が１．２５以上、１．６５以下である請求項１または２記載の燃料電池。The fuel cell according to claim 1 or 2, wherein a ratio of fluorine to carbon (F / C) contained in the fluorinated pitch is 1.25 or more and 1.65 or less. 前記フッ化ピッチに含まれるフッ素と水素の比（Ｆ／Ｈ）が９以上である請求項１、２または３記載の燃料電池。The fuel cell according to claim 1, wherein the ratio of fluorine and hydrogen contained in the fluorinated pitch (F / H) is 9 or more. 前記フッ化ピッチの水に対する接触角が１３０度以上である請求項１、２、３または４記載の燃料電池。The fuel cell according to claim 1, 2, 3 or 4, wherein the contact angle to water of the fluorinated pitch is not less than 130 degrees. 前記フッ化ピッチの炭素骨格が６員環を有し、積層した平面構造である請求項１〜５のいずれかに記載の燃料電池。The fuel cell according to any one of claims 1 to 5 , wherein the carbon skeleton of the fluorinated pitch has a six-membered ring and has a laminated planar structure. 前記フッ化ピッチが、石炭系ピッチまたは石油系ピッチのフッ素化により合成されたものである請求項１〜６のいずれかに記載の燃料電池。The fuel cell according to any one of claims 1 to 6 , wherein the fluorinated pitch is synthesized by fluorination of coal pitch or petroleum pitch. 前記電解質層が固体高分子膜である請求項１〜７のいずれかに記載の燃料電池。The fuel cell according to claim 1 , wherein the electrolyte layer is a solid polymer membrane. 溶媒に溶かしたフッ化ピッチの溶液を、電極反応層、電極基材、またはガス流路の表面の少なくとも一部分、または電極反応層、電極基材、またはガス流路の表面を構成する原材料に塗布し、溶媒を乾燥、除去することによりフッ化ピッチを固着する工程を有することを特徴とする燃料電池の製造法。  Apply a solution of fluorinated pitch dissolved in a solvent to at least a part of the surface of the electrode reaction layer, electrode substrate, or gas flow path, or to the raw material that constitutes the surface of the electrode reaction layer, electrode substrate, or gas flow path And a process for fixing the fluorinated pitch by drying and removing the solvent. フッ化ピッチを気相からの析出により、電極反応層、電極基材、またはガス流路の表面の少なくとも一部分、または電極反応層、電極基材、またはガス流路の表面を構成する原材料に固着する工程を含むことを特徴とする燃料電池の製造法。  Fluoride pitch adheres to at least a part of the surface of the electrode reaction layer, electrode substrate, or gas flow path, or the raw material constituting the surface of the electrode reaction layer, electrode substrate, or gas flow path by precipitation from the gas phase The manufacturing method of the fuel cell characterized by including the process to do. 電極基材の電極反応層側の界面部分に、気相からの析出によりフッ化ピッチを形成する請求項１０記載の燃料電池の製造法。The method for producing a fuel cell according to claim 10, wherein a fluoride pitch is formed by precipitation from a gas phase at an interface portion of the electrode substrate on the electrode reaction layer side.
JP23437498A 1998-08-20 1998-08-20 Electrode electrolyte assembly for polymer electrolyte fuel cell, polymer electrolyte fuel cell and production method thereof Expired - Fee Related JP4367983B2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP23437498A JP4367983B2 (en) 1998-08-20 1998-08-20 Electrode electrolyte assembly for polymer electrolyte fuel cell, polymer electrolyte fuel cell and production method thereof
EP99937001A EP1117142A4 (en) 1998-08-20 1999-08-09 Fuel cell and method of manufacture thereof
CNB998098582A CN1190859C (en) 1998-08-20 1999-08-09 Fuel cell and manufacture thereof
KR10-2001-7001719A KR100421708B1 (en) 1998-08-20 1999-08-09 Fuel cell and method of menufacture thereof
US09/763,263 US6660424B1 (en) 1998-08-20 1999-08-09 Fuel cell and method of manufacture thereof
PCT/JP1999/004312 WO2000011741A1 (en) 1998-08-20 1999-08-09 Fuel cell and method of menufacture thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23437498A JP4367983B2 (en) 1998-08-20 1998-08-20 Electrode electrolyte assembly for polymer electrolyte fuel cell, polymer electrolyte fuel cell and production method thereof

Publications (3)

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JP2000067874A JP2000067874A (en) 2000-03-03
JP2000067874A5 true JP2000067874A5 (en) 2005-11-04
JP4367983B2 JP4367983B2 (en) 2009-11-18

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Publication number Priority date Publication date Assignee Title
ATE389243T1 (en) * 1999-01-25 2008-03-15 Asahi Glass Co Ltd SOLID POLYMER TYPE FUEL CELL AND PRODUCTION THEREOF
JP3382213B2 (en) * 2000-08-08 2003-03-04 松下電器産業株式会社 Method for producing gas diffusion electrode for polymer electrolyte fuel cell
GB0200253D0 (en) * 2002-01-08 2002-02-20 Johnson Matthey Plc Improved material for electrode manufacture
JP4882225B2 (en) * 2004-12-02 2012-02-22 大日本印刷株式会社 Water-repellent electrode catalyst layer, catalyst layer transfer sheet and catalyst layer-electrolyte assembly for polymer electrolyte fuel cell
JP4892912B2 (en) * 2004-12-02 2012-03-07 大日本印刷株式会社 Water-repellent separator for polymer electrolyte fuel cells
JP2006164574A (en) * 2004-12-02 2006-06-22 Dainippon Printing Co Ltd Water-repellent electrode catalyst layer for solid polymer fuel cell
JP4978578B2 (en) * 2008-07-29 2012-07-18 大日本印刷株式会社 Paste composition for imparting water repellency and method for producing gas diffusion layer
JP5608972B2 (en) * 2008-11-28 2014-10-22 大日本印刷株式会社 Water repellent layer forming paste composition and gas diffusion layer manufacturing method
JP5051203B2 (en) * 2009-03-24 2012-10-17 大日本印刷株式会社 Membrane-electrode assembly of fuel cell, transfer sheet for electrode production, and production method thereof
JP4691189B1 (en) 2009-11-25 2011-06-01 株式会社東芝 Direct methanol fuel cell
JP7229110B2 (en) * 2019-06-25 2023-02-27 株式会社Ｓｃｒｅｅｎホールディングス Cell potential measuring device

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JPH06349498A (en) * 1993-06-11 1994-12-22 Asahi Chem Ind Co Ltd Gas diffusion electrode, connecting body, fuel cell, and manufacture thereof
JPH07211324A (en) * 1994-01-19 1995-08-11 Osaka Gas Co Ltd Electrode catalyst composition, electrode material, and manufacture thereof
JP3591123B2 (en) * 1996-03-08 2004-11-17 トヨタ自動車株式会社 Fuel cell and fuel cell electrode

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