JP2021051857A - 燃料電池の製造方法 - Google Patents
燃料電池の製造方法 Download PDFInfo
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- 239000000446 fuel Substances 0.000 title claims abstract description 51
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 37
- 238000003466 welding Methods 0.000 claims abstract description 71
- 238000000034 method Methods 0.000 claims abstract description 35
- 239000012528 membrane Substances 0.000 claims abstract description 27
- 238000009792 diffusion process Methods 0.000 claims abstract description 26
- 238000003825 pressing Methods 0.000 claims description 17
- 239000000110 cooling liquid Substances 0.000 claims 1
- 239000011324 bead Substances 0.000 abstract description 7
- 239000002826 coolant Substances 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 11
- 239000003054 catalyst Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 239000003792 electrolyte Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000012495 reaction gas Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000003411 electrode reaction Methods 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000004840 adhesive resin Substances 0.000 description 1
- 229920006223 adhesive resin Polymers 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000003014 ion exchange membrane Substances 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000005518 polymer electrolyte Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
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- H—ELECTRICITY
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/403—Manufacturing processes of separators, membranes or diaphragms
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
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- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/0204—Non-porous and characterised by the material
- H01M8/0206—Metals or alloys
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/0247—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the form
- H01M8/0254—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the form corrugated or undulated
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0297—Arrangements for joining electrodes, reservoir layers, heat exchange units or bipolar separators to each other
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04029—Heat exchange using liquids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/14—Heat exchangers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/36—Electric or electronic devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/02—Iron or ferrous alloys
- B23K2103/04—Steel or steel alloys
- B23K2103/05—Stainless steel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/08—Non-ferrous metals or alloys
- B23K2103/14—Titanium or alloys thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/082—Scanning systems, i.e. devices involving movement of the laser beam relative to the laser head
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- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M2008/1095—Fuel cells with polymeric electrolytes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/1004—Fuel cells with solid electrolytes characterised by membrane-electrode assemblies [MEA]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
Description
図1は、本開示の一実施形態における製造方法で製造される燃料電池100の説明図である。図2は、図1をII−IIラインで切断した断面模式図である。図1には互いに直行するx軸、y軸、z軸を示している。x軸は燃料電池100の短手方向に沿った方向であり、y軸は燃料電池100の長手方向に沿った方向であり、z軸は燃料電池100の積層方向に沿った方向である。これらの軸は図2以降に示す軸に対応している。
図6は、第2実施形態における、燃料電池の製造方法の一例を示す工程図である。第2実施形態の燃料電池の製造方法は、ステップS100(図3)の後、つまり、ステップS110の溶接工程に先立ち、セパレータ20同士を重ねて押圧する押圧工程を行う点が第1実施形態と異なり、他の工程は第1実施形態と同じである。第2実施形態の燃料電池の構成は、第1実施形態の燃料電池の構成と同一であるため、燃料電池の構成の説明は省略する。
図9は、第3実施形態における、セパレータ20の押圧工程の説明図である。第3実施
実施形態の燃料電池の製造方法は、ステップS105(図6)の押圧工程において、加圧治具200の開口部201を通じて溶接箇所に対してポンチ処理を行う点が第2実施形態と異なり、他の工程は第2実施形態と同じである。第3実施形態の燃料電池の構成は、第1実施形態の燃料電池の構成と同一であるため、燃料電池の構成の説明は省略する。
(D1)上記実施形態において、ステップS110(図3)におけるワンショットレーザ溶接は、ガルバノスキャナ310を用いて断続的に複数の溶接箇所を溶接している。この代わりに、レーザ光源300自体を移動させて、断続的に複数の溶接箇所を溶接してもよい。
Claims (5)
- 一対のセパレータと前記一対のセパレータに隣接する膜電極拡散層接合体とを有する燃料電池の製造方法であって、
それぞれ、前記膜電極拡散層接合体に対向する面に、面方向に波打つように形成された複数の凸条部を有する前記一対のセパレータを用意し、
前記一対のセパレータの前記凸条部同士を、断続的に複数の溶接箇所において、1度のレーザ照射で予め定めた長さをレーザ溶接することにより、前記一対のセパレータの間に冷却液を流すための流路を形成する溶接工程を含む、燃料電池の製造方法。 - 請求項1に記載の燃料電池の製造方法であって、
前記溶接工程に先立ち、前記一対のセパレータを重ねて押圧する押圧工程を備える、燃料電池の製造方法。 - 請求項2に記載の燃料電池の製造方法であって、
前記押圧工程では、前記溶接工程における前記溶接箇所に対応する箇所に溶接のための開口部を備えた加圧治具を用いて前記一対のセパレータを加圧し、
前記溶接工程では、前記加圧治具によって加圧した状態で、前記開口部を通じてレーザ溶接を行う、燃料電池の製造方法。 - 請求項3に記載の燃料電池の製造方法であって、
前記押圧工程では、前記開口部を通じて前記溶接箇所に対してポンチ処理を行う、燃料電池の製造方法。 - 請求項1から請求項4までのいずれか一項に記載の燃料電池の製造方法であって、
前記溶接工程において、前記流路に沿った方向における一溶接あたりの溶接の長さは、前記流路に沿った方向に垂直な方向における前記凸条部の幅よりも長い、燃料電池の製造方法。
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JP2019172761A JP7215384B2 (ja) | 2019-09-24 | 2019-09-24 | 燃料電池の製造方法 |
DE102020114960.3A DE102020114960A1 (de) | 2019-09-24 | 2020-06-05 | Herstellungsverfahren für eine Brennstoffzelle |
CN202010541492.0A CN112620936A (zh) | 2019-09-24 | 2020-06-15 | 燃料电池的制造方法 |
US16/944,297 US20210091356A1 (en) | 2019-09-24 | 2020-07-31 | Manufacturing method of fuel cell |
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JP2019172761A JP7215384B2 (ja) | 2019-09-24 | 2019-09-24 | 燃料電池の製造方法 |
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Cited By (1)
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WO2022244404A1 (ja) * | 2021-05-17 | 2022-11-24 | Nok株式会社 | 燃料電池用セパレータの製造方法及び燃料電池用セパレータ |
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- 2019-09-24 JP JP2019172761A patent/JP7215384B2/ja active Active
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2020
- 2020-06-05 DE DE102020114960.3A patent/DE102020114960A1/de not_active Withdrawn
- 2020-06-15 CN CN202010541492.0A patent/CN112620936A/zh active Pending
- 2020-07-31 US US16/944,297 patent/US20210091356A1/en not_active Abandoned
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WO2022244404A1 (ja) * | 2021-05-17 | 2022-11-24 | Nok株式会社 | 燃料電池用セパレータの製造方法及び燃料電池用セパレータ |
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JP7215384B2 (ja) | 2023-01-31 |
CN112620936A (zh) | 2021-04-09 |
US20210091356A1 (en) | 2021-03-25 |
DE102020114960A1 (de) | 2021-03-25 |
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