JP2009522748A - 多孔質電極を有する燃料電池構成体 - Google Patents
多孔質電極を有する燃料電池構成体 Download PDFInfo
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Abstract
Description
Claims (68)
- 第1電極と、
該第1電極を覆う電解質と、
該電解質を覆う第2電極と
を含み、該第2電極がバルク層部分と機能層部分を含み、該機能層部分が前記電解質と前記第2電極のバルク層部分との間に延びる界面層であり、該バルク層部分が二峰性の気孔サイズ分布を有する、SOFC構成体。 - 前記第1電極がバルク層部分と機能層部分を含み、該機能層部分が前記電解質と前記第1電極のバルク層部分との間に延びる界面層であり、該第1電極のバルク層部分が二峰性の気孔サイズ分布を有する、請求項1に記載のSOFC構成体。
- 前記バルク層部分が、平均気孔サイズPfを有する微細な気孔と、平均気孔サイズPcを有する粗い気孔とを含み、Pc/Pfが約2.0以上である、請求項1に記載のSOFC構成体。
- Pc/Pfが約5.0以上である、請求項3に記載のSOFC構成体。
- Pc/Pfが約10.0以上である、請求項4に記載のSOFC構成体。
- 前記バルク層部分が、微細な気孔と該微細な気孔よりも大きな粗い気孔を含み、該微細な気孔が粒間の気孔であり、該粗い気孔が粒内の気孔である、請求項1に記載のSOFC構成体。
- 前記機能層部分が二峰性の気孔サイズ分布を有する、請求項1に記載のSOFC構成体。
- 前記第2電極がカソードであり、前記第1電極がアノードを含む、請求項1に記載のSOFC構成体。
- 前記バルク層部分が前記機能層部分よりも大きな平均粒子サイズを有する、請求項1に記載のSOFC構成体。
- 前記バルク層部分が約50μm以上の平均粒子サイズを有する、請求項1に記載のSOFC構成体。
- 前記バルク層部分が前記機能層部分の厚さよりも大きな厚さを有し、該機能層部分が約10μm以上の厚さを有し、該バルク層部分が約500μm以上の厚さを有する、請求項1に記載のSOFC構成体。
- 前記バルク層部分が約15vol%以上の%気孔率を有する、請求項1に記載のSOFC構成体。
- 前記バルク層部分が約25vol%以上の%気孔率を有する、請求項12に記載のSOFC構成体。
- 前記機能層部分が約10vol%以上の%気孔率を有する、請求項1に記載のSOFC構成体。
- 前記機能層部分が約15vol%以上の%気孔率を有する、請求項14に記載のSOFC構成体。
- 前記第1電極と前記第2電極の一方がカソードであり、該カソードがランタンとマンガンのセラミック酸化物を含む、請求項1に記載のSOFC構成体。
- 前記カソードがストロンチウムをさらに含む、請求項16に記載のSOFC構成体。
- 前記電解質がジルコニアを含む、請求項1に記載のSOFC構成体。
- 前記ジルコニアが安定剤を含む、請求項18に記載のSOFC構成体。
- 前記安定剤が希土類酸化物を含む、請求項19に記載のSOFC構成体。
- 前記安定剤がイットリアを含む、請求項20に記載のSOFC構成体。
- 前記第1電極と前記第2電極の一方がアノードであり、該アノードがサーメットを含む、請求項1に記載のSOFC構成体。
- 前記サーメットが金属相とセラミック相を含み、該セラミック相が酸化物を含む、請求項22に記載のSOFC構成体。
- 前記酸化物がジルコニアを含み、前記金属相がニッケルを含む、請求項23に記載のSOFC構成体。
- 前記第1電極、前記第2電極及び前記電解質がSOFCセルを形成し、前記SOFC構成体が複数のSOFCセルをスタックの形態で含む、請求項1に記載のSOFC構成体。
- 第1電極層と、
該第1電極層を覆う電解質層と、
該電解質層を覆う第2電極層と
を含み、該第2電極層が、平均粒子サイズGfを有する微細な粒子と、平均粒子サイズGcを有する粗い粒子とを含むように二峰性の粒子サイズ分布を有し、Gc/Gfが約1.5以上である、SOFC構成体。 - Gc/Gfが約2.0以上である、請求項26に記載のSOFC構成体。
- Gc/Gfが約5.0以上である、請求項26に記載のSOFC構成体。
- Gc/Gfが約10.0以上である、請求項26に記載のSOFC構成体。
- Gc/Gfが約15.0以上である、請求項26に記載のSOFC構成体。
- Gc/Gfが約20.0以上である、請求項26に記載のSOFC構成体。
- 前記第2電極がカソードである、請求項26に記載のSOFC構成体。
- 前記第2電極がバルク層部分と機能層部分を含み、該機能層部分が前記電解質と該第2電極の機能層部分との間に延びる界面層であり、該バルク層部分が前記粗い粒子を含み、該機能層部分が前記微細な粒子を含む、請求項26に記載のSOFC構成体。
- 前記バルク層部分が前記機能層部分の厚さよりも大きな厚さを有し、該機能層部分が約10μm以上の厚さを有し、該バルク層部分が約500μm以上の厚さを有する、請求項33に記載のSOFC構成体。
- 前記バルク層部分が約15vol%以上の%気孔率を有する、請求項33に記載のSOFC構成体。
- 前記バルク層部分が約25vol%以上の%気孔率を有する、請求項33に記載のSOFC構成体。
- 前記機能層部分が約10vol%以上の%気孔率を有する、請求項33に記載のSOFC構成体。
- 前記機能層部分が約15vol%以上の%気孔率を有する、請求項33に記載のSOFC構成体。
- 前記第1電極と前記第2電極の一方がカソードであり、該カソードがランタンとマンガンのセラミック酸化物を含む、請求項26に記載のSOFC構成体。
- 前記カソードがストロンチウムをさらに含む、請求項39に記載のSOFC構成体。
- 前記電解質層がジルコニアを含む、請求項26に記載のSOFC構成体。
- 前記ジルコニアが安定剤を含む、請求項41に記載のSOFC構成体。
- 前記安定剤が希土類酸化物を含む、請求項42に記載のSOFC構成体。
- 前記安定剤がイットリアを含む、請求項43に記載のSOFC構成体。
- 前記第1電極と前記第2電極の一方がアノードであり、該アノードがサーメットを含む、請求項26に記載のSOFC構成体。
- 前記サーメットが金属相とセラミック相を含み、該セラミック相が酸化物を含む、請求項45に記載のSOFC構成体。
- 前記酸化物がジルコニアを含み、前記金属相がニッケルを含む、請求項46に記載のSOFC構成体。
- 前記第1電極、前記第2電極及び前記電解質がSOFCセルを形成し、前記SOFC構成体が複数のSOFCセルをスタックの形態で含む、請求項26に記載のSOFC構成体。
- 第1電極を形成すること、
該第1電極を覆う電解質を形成すること、及び
該電解質を覆う第2電極を形成すること
を含み、該第2電極が粉末を含み、該粉末が粒子から形成される凝集体を含み、
前記第1電極、前記電解質及び前記第2電極を熱処理してSOFC構成体を形成することをさらに含む、SOFC構成体を形成する方法。 - 前記粉末が主として凝集体を含む、請求項49に記載の方法。
- 原料粉末を焼成して該原料粉末を凝集させることによって前記粉末を形成することをさらに含む、請求項49に記載の方法。
- 前記焼成が900℃以上の温度で実施される、請求項50に記載の方法。
- 前記焼成が1000℃以上の温度で実施される、請求項49に記載の方法。
- 前記焼成が1100℃以上の温度で実施される、請求項53に記載の方法。
- 前記焼成が1700℃以下の温度で実施される、請求項49に記載の方法。
- 前記焼成が1600℃以下の温度で実施される、請求項55に記載の方法。
- 前記焼成が1500℃以下の温度で実施される、請求項56に記載の方法。
- 前記粉末が、前記粒子に関連した一次粒子サイズと、前記凝集体に関連した二次粒子サイズを有する、請求項49に記載の方法。
- 平均の一次粒子サイズが約0.1〜10μmの範囲内にある、請求項58に記載の方法。
- 平均の二次粒子サイズが約20〜300μmの範囲内にある、請求項58に記載の方法。
- 平均の二次粒子サイズが約20〜100μmの範囲内にある、請求項60に記載の方法。
- 平均の二次粒子サイズが約50〜250μmの範囲内にある、請求項60に記載の方法。
- 未処理の第1電極層を形成すること、
該第1電極層を覆う未処理の電解質層を形成すること、及び
該未処理の電解質層を覆う未処理の第2電極層を形成すること
を含み、該第2電極層が相対成形密度ρgを有し、
前記第1電極層、前記電解質層及び前記第2電極層を焼結してこれらの層を高密度化し、前記未処理の第2電極層が高密度化された第2電極層を形成し、該高密度化された第2電極層が相対焼結密度ρs及び多孔性を有し、該高密度化された第2電極層の多孔性が不堅牢な気孔形成剤なしで達成される、SOFC構成体を形成する方法。 - ρs−ρgが0.3以下である、請求項63に記載の方法。
- ρs−ρgが0.2以下である、請求項64に記載の方法。
- 前記焼結が約0.5MPa以上の圧力で実施される、請求項63に記載の方法。
- 前記焼結が約900℃以上の温度で実施される、請求項63に記載の方法。
- 前記焼結が約1000℃以上の温度で実施される、請求項67に記載の方法。
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- 2007-01-09 RU RU2008127752/09A patent/RU2008127752A/ru not_active Application Discontinuation
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JP2012146628A (ja) * | 2010-12-20 | 2012-08-02 | Ngk Insulators Ltd | 固体酸化物形燃料電池 |
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JP2014528636A (ja) * | 2011-10-07 | 2014-10-27 | サン−ゴバン セラミックス アンド プラスティクス,インコーポレイティド | 固体酸化物燃料電池を形成する方法 |
JP2015504588A (ja) * | 2011-12-07 | 2015-02-12 | サン−ゴバン セラミックス アンド プラスティクス,インコーポレイティド | 固体酸化物燃料電池品および形成方法 |
US9368823B2 (en) | 2011-12-07 | 2016-06-14 | Saint-Gobain Ceramics & Plastics, Inc. | Solid oxide fuel cell articles and methods of forming |
WO2013180299A1 (ja) * | 2012-05-31 | 2013-12-05 | 京セラ株式会社 | セルおよびセルスタック装置並びに電気化学モジュール、電気化学装置 |
JPWO2013180299A1 (ja) * | 2012-05-31 | 2016-01-21 | 京セラ株式会社 | セルおよびセルスタック装置並びに電気化学モジュール、電気化学装置 |
JP2019071289A (ja) * | 2012-05-31 | 2019-05-09 | 京セラ株式会社 | セルおよびセルスタック装置並びに電気化学モジュール、電気化学装置 |
US10355282B2 (en) | 2012-05-31 | 2019-07-16 | Kyocera Corporation | Cell, cell stack unit, electrochemical module, and electrochemical apparatus |
US11450859B2 (en) | 2012-05-31 | 2022-09-20 | Kyocera Corporation | Cell, cell stack unit, electrochemical module, and electrochemical apparatus |
US11909051B2 (en) | 2012-05-31 | 2024-02-20 | Kyocera Corporation | Cell, cell stack unit, electrochemical module, and electrochemical apparatus |
Also Published As
Publication number | Publication date |
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RU2008127752A (ru) | 2010-02-20 |
JP5498021B2 (ja) | 2014-05-21 |
EP1979964A2 (en) | 2008-10-15 |
CN101385169A (zh) | 2009-03-11 |
WO2007082209A3 (en) | 2008-03-20 |
US20130337360A1 (en) | 2013-12-19 |
WO2007082209A2 (en) | 2007-07-19 |
US20070178366A1 (en) | 2007-08-02 |
AU2007204758B2 (en) | 2010-01-21 |
KR20080105041A (ko) | 2008-12-03 |
KR101154217B1 (ko) | 2012-06-18 |
BRPI0706376A2 (pt) | 2011-03-22 |
CA2636310A1 (en) | 2007-07-19 |
AU2007204758A1 (en) | 2007-07-19 |
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