JP6789448B1 - 電気化学セル - Google Patents
電気化学セル Download PDFInfo
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- JP6789448B1 JP6789448B1 JP2020531540A JP2020531540A JP6789448B1 JP 6789448 B1 JP6789448 B1 JP 6789448B1 JP 2020531540 A JP2020531540 A JP 2020531540A JP 2020531540 A JP2020531540 A JP 2020531540A JP 6789448 B1 JP6789448 B1 JP 6789448B1
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- 239000000446 fuel Substances 0.000 claims abstract description 65
- 230000002093 peripheral effect Effects 0.000 claims abstract description 36
- 239000007784 solid electrolyte Substances 0.000 claims abstract description 30
- 229910052746 lanthanum Inorganic materials 0.000 claims abstract description 13
- 229910052712 strontium Inorganic materials 0.000 claims abstract description 13
- 238000004611 spectroscopical analysis Methods 0.000 claims abstract 4
- 238000005259 measurement Methods 0.000 description 25
- 239000002002 slurry Substances 0.000 description 14
- 230000006866 deterioration Effects 0.000 description 13
- 230000035945 sensitivity Effects 0.000 description 12
- 239000000843 powder Substances 0.000 description 11
- 238000012935 Averaging Methods 0.000 description 8
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 239000000203 mixture Substances 0.000 description 7
- 230000004888 barrier function Effects 0.000 description 6
- 238000010894 electron beam technology Methods 0.000 description 6
- 229910021526 gadolinium-doped ceria Inorganic materials 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- 239000011230 binding agent Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000011812 mixed powder Substances 0.000 description 5
- 229910002080 8 mol% Y2O3 fully stabilized ZrO2 Inorganic materials 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 238000000682 scanning probe acoustic microscopy Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- WUOACPNHFRMFPN-UHFFFAOYSA-N alpha-terpineol Chemical compound CC1=CCC(C(C)(C)O)CC1 WUOACPNHFRMFPN-UHFFFAOYSA-N 0.000 description 3
- 229910052796 boron Inorganic materials 0.000 description 3
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 description 3
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- SQIFACVGCPWBQZ-UHFFFAOYSA-N delta-terpineol Natural products CC(C)(O)C1CCC(=C)CC1 SQIFACVGCPWBQZ-UHFFFAOYSA-N 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 239000003381 stabilizer Substances 0.000 description 3
- 229940116411 terpineol Drugs 0.000 description 3
- 229910001233 yttria-stabilized zirconia Inorganic materials 0.000 description 3
- 229910003026 (La,Sr)(Co,Fe)O3 Inorganic materials 0.000 description 2
- HXQQNYSFSLBXQJ-UHFFFAOYSA-N COC1=C(NC(CO)C(O)=O)CC(O)(CO)CC1=NCC(O)=O Chemical compound COC1=C(NC(CO)C(O)=O)CC(O)(CO)CC1=NCC(O)=O HXQQNYSFSLBXQJ-UHFFFAOYSA-N 0.000 description 2
- 229910018921 CoO 3 Inorganic materials 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 239000013025 ceria-based material Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- -1 oxygen ion Chemical class 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 229910020599 Co 3 O 4 Inorganic materials 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 229910052963 cobaltite Inorganic materials 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- LBSANEJBGMCTBH-UHFFFAOYSA-N manganate Chemical compound [O-][Mn]([O-])(=O)=O LBSANEJBGMCTBH-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229910001404 rare earth metal oxide Inorganic materials 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- HYXGAEYDKFCVMU-UHFFFAOYSA-N scandium oxide Chemical compound O=[Sc]O[Sc]=O HYXGAEYDKFCVMU-UHFFFAOYSA-N 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910002076 stabilized zirconia Inorganic materials 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- RUDFQVOCFDJEEF-UHFFFAOYSA-N yttrium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[Y+3].[Y+3] RUDFQVOCFDJEEF-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- H01M8/12—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
- H01M8/1231—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte with both reactants being gaseous or vaporised
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/8605—Porous electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/8636—Inert electrodes with catalytic activity, e.g. for fuel cells with a gradient in another property than porosity
- H01M4/8642—Gradient in composition
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/90—Selection of catalytic material
- H01M4/9016—Oxides, hydroxides or oxygenated metallic salts
- H01M4/9025—Oxides specially used in fuel cell operating at high temperature, e.g. SOFC
- H01M4/9033—Complex oxides, optionally doped, of the type M1MeO3, M1 being an alkaline earth metal or a rare earth, Me being a metal, e.g. perovskites
-
- 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
- H01M8/12—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
-
- 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
- H01M8/12—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
- H01M8/124—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the process of manufacturing or by the material of the electrolyte
- H01M8/1246—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the process of manufacturing or by the material of the electrolyte the electrolyte consisting of oxides
- H01M8/1253—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the process of manufacturing or by the material of the electrolyte the electrolyte consisting of oxides the electrolyte containing zirconium oxide
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2300/00—Electrolytes
- H01M2300/0017—Non-aqueous electrolytes
- H01M2300/0065—Solid electrolytes
- H01M2300/0068—Solid electrolytes inorganic
- H01M2300/0071—Oxides
- H01M2300/0074—Ion conductive at high temperature
- H01M2300/0077—Ion conductive at high temperature based on zirconium oxide
-
- 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
- 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
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Inert Electrodes (AREA)
- Fuel Cell (AREA)
Abstract
Description
本実施形態に係る電気化学セルの一例として、燃料電池100の構成について図面を参照しながら説明する。図1は、燃料電池100の斜視図である。
H2+O2−→H2O+2e− (於:燃料極110) …(2)
外周部130bにおけるオージェ電子分光分析で検出されるSrの定量値(以下、「Sr濃度」という。)に対するLaの定量値(以下、「La濃度」という。)の第1の比(La濃度/Sr濃度)Qbは、中央部130aにおけるオージェ電子分光分析で検出されるSr濃度に対するLa濃度の第2の比(La濃度/Sr濃度)Qaの1.1倍以上である。すなわち、Qb≧1.1×Qaが成立する。
燃料電池スタック100の製造方法について説明する。
以上、本発明の実施形態について説明したが、本発明はこれらに限定されるものではなく、本発明の趣旨を逸脱しない限りにおいて種々の変更が可能である。
以下のようにして、サンプルNo.1〜No.12に係る燃料電池を作製した。
まず、平面視において空気極の外縁を規定する四辺それぞれの中点を特定した。次に、対向する二辺それぞれの中点を結ぶ直線と、残りの対向する二辺それぞれの中点を結ぶ直線との交点を中心として特定した。次に、中心から各中点までの各線分上において中心から全長の3/4の位置を、第1の比Qbを算出するための第1測定点(合計4つ)として特定した。また、中心から各中点までの各線分上において中心から全長の1/4の位置を、第2の比Qaを算出するための第2測定点(合計4つ)として特定した。
サンプルNo.1〜No.12について、燃料極側に窒素ガス、空気極側に空気を供給しながら750℃まで昇温し、750℃に達した時点で燃料極に水素ガスを供給しながら還元処理を3時間行った。
110 燃料極
120 固体電解質層
130 空気極
130a 中央部
130b 外周部
Claims (3)
- 燃料極と、
一般式ABO3で表され、AサイトにLa及びSrを含むペロブスカイト型酸化物を主成分として含有する空気極と、
前記燃料極と前記空気極との間に配置される固体電解質層と、
を備え、
前記空気極は、前記空気極の厚み方向に垂直な面方向において前記空気極の中央に位置する中央部と、前記面方向において前記中央部を取り囲む外周部とを有し、
前記外周部におけるオージェ電子分光分析で検出されるSr濃度に対するLa濃度の第1の比は、前記中央部におけるオージェ電子分光分析で検出されるSr濃度に対するLa濃度の第2の比の1.1倍以上である、
電気化学セル。 - 前記第1の比は、前記第2の比の1.6倍以下である、
請求項1に記載の電気化学セル。 - 前記第1の比は、前記第2の比の1.3倍以下である、
請求項1又は2に記載の電気化学セル。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019014746 | 2019-01-30 | ||
JP2019014746 | 2019-01-30 | ||
PCT/JP2020/000556 WO2020158339A1 (ja) | 2019-01-30 | 2020-01-10 | 電気化学セル |
Publications (2)
Publication Number | Publication Date |
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JP6789448B1 true JP6789448B1 (ja) | 2020-11-25 |
JPWO2020158339A1 JPWO2020158339A1 (ja) | 2021-02-18 |
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JP2020531540A Active JP6789448B1 (ja) | 2019-01-30 | 2020-01-10 | 電気化学セル |
Country Status (5)
Country | Link |
---|---|
US (1) | US10903502B2 (ja) |
JP (1) | JP6789448B1 (ja) |
CN (1) | CN113316856B (ja) |
DE (1) | DE112020000007T5 (ja) |
WO (1) | WO2020158339A1 (ja) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08180885A (ja) * | 1994-12-26 | 1996-07-12 | Tokyo Gas Co Ltd | 空気極の集電効率を向上させた固体電解質型燃料電池 |
JP2012119212A (ja) * | 2010-12-02 | 2012-06-21 | Nippon Telegr & Teleph Corp <Ntt> | 固体酸化物形燃料電池および固体酸化物形燃料電池用単セル |
WO2017006943A1 (ja) * | 2015-07-07 | 2017-01-12 | 日本碍子株式会社 | 燃料電池 |
WO2018021490A1 (ja) * | 2016-07-27 | 2018-02-01 | 日本碍子株式会社 | 電気化学セル |
WO2018021484A1 (ja) * | 2016-07-27 | 2018-02-01 | 日本碍子株式会社 | 電気化学セル |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006032132A (ja) * | 2004-07-16 | 2006-02-02 | Hosokawa Funtai Gijutsu Kenkyusho:Kk | 固体電解質型燃料電池の空気極原料粉体、空気極及び固体電解質型燃料電池 |
JP2012043774A (ja) * | 2010-07-21 | 2012-03-01 | Ngk Insulators Ltd | 電極材料及びそれを含む固体酸化物型燃料電池セル |
EP2750227B1 (en) * | 2011-12-19 | 2016-11-30 | NGK Insulators, Ltd. | Air electrode material and solid oxide fuel cell |
JP5605890B1 (ja) * | 2013-03-19 | 2014-10-15 | 日本碍子株式会社 | 固体酸化物型燃料電池 |
-
2020
- 2020-01-10 CN CN202080000998.9A patent/CN113316856B/zh active Active
- 2020-01-10 WO PCT/JP2020/000556 patent/WO2020158339A1/ja active Application Filing
- 2020-01-10 DE DE112020000007.9T patent/DE112020000007T5/de active Pending
- 2020-01-10 JP JP2020531540A patent/JP6789448B1/ja active Active
- 2020-06-23 US US16/909,268 patent/US10903502B2/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08180885A (ja) * | 1994-12-26 | 1996-07-12 | Tokyo Gas Co Ltd | 空気極の集電効率を向上させた固体電解質型燃料電池 |
JP2012119212A (ja) * | 2010-12-02 | 2012-06-21 | Nippon Telegr & Teleph Corp <Ntt> | 固体酸化物形燃料電池および固体酸化物形燃料電池用単セル |
WO2017006943A1 (ja) * | 2015-07-07 | 2017-01-12 | 日本碍子株式会社 | 燃料電池 |
WO2018021490A1 (ja) * | 2016-07-27 | 2018-02-01 | 日本碍子株式会社 | 電気化学セル |
WO2018021484A1 (ja) * | 2016-07-27 | 2018-02-01 | 日本碍子株式会社 | 電気化学セル |
Also Published As
Publication number | Publication date |
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CN113316856A (zh) | 2021-08-27 |
US20200321628A1 (en) | 2020-10-08 |
JPWO2020158339A1 (ja) | 2021-02-18 |
CN113316856B (zh) | 2021-12-03 |
US10903502B2 (en) | 2021-01-26 |
DE112020000007T5 (de) | 2020-12-10 |
WO2020158339A1 (ja) | 2020-08-06 |
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