JP6194423B2 - 固体酸化物燃料電池の燃料極支持体の製造方法 - Google Patents
固体酸化物燃料電池の燃料極支持体の製造方法 Download PDFInfo
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Description
燃料極支持体としてGDC(10mole% Gd doped Ceria)とNiOを50:50の体積比の比率にして厚さ3ミリメートルの燃料極支持体を1−軸加圧方法で製造し、1450℃の温度で焼結した。その後、850℃の温度で還元ガス(H2)を用いてNiO/GDCをNi/GDCに30分間還元させた。
実施例1で製造したNi/GDC燃料極支持体の1つの表面に1ミリメートル直径のセリアビーズを5barの圧力で40m/sec速度で10分間ブラスト法で処理した。
実施例1で製造したNi/GDC燃料極支持体にブラスト法を用いた表面処理をしない場合、表面に凹凸が存在せず、表面粗さは100ナノメートルであり、面積固有抵抗は0.5Ωcm2であった。
実施例1で製造した燃料極支持体のブラスト法で処理された表面にGDCをディップコーティング方法により10マイクロメータ厚さで塗布し、1450℃の温度で焼結して電解質を形成した。電解質上にLSCFをスクリーンプリント方法により30マイクロメータ厚さで塗布し、1000℃の温度で焼結した後、空気極層を形成して燃料電池セルを製造した。
実施例2の燃料極支持体を製造例1の方法と同様な方法により燃料電池セルを製造した。
比較例1の燃料極支持体を製造例1の方法と同様な方法により燃料電池セルを製造した。
Claims (12)
- 金属および酸素イオン伝導性を有する無機酸化物を含む燃料極支持体の少なくとも1つの表面をブラスト法を利用して表面処理するステップを含む固体酸化物燃料電池の燃料極支持体の製造方法であって、
前記ブラスト法はセラミックビーズブラスト法であり、
前記表面処理された表面は幅0.5マイクロメータ以上10マイクロメータ以下の凹凸を含み、
前記凹凸の最高点および最低点の高さの差は燃料極支持体の全体厚さの0.1%以上50%以下である製造方法。 - 前記セラミックビーズの直径は0.5ミリメートル以上10ミリメートル以下であることを特徴とする、請求項1に記載の固体酸化物燃料電池の燃料極支持体の製造方法。
- 前記ブラスト法における噴射速度は0.1m/sec以上41.6m/sec以下であることを特徴とする、請求項1または2に記載の固体酸化物燃料電池の燃料極支持体の製造方法。
- 前記ブラスト法における噴射圧力は0.5bar以上5bar以下であることを特徴とする、請求項1〜3のいずれか一項に記載の固体酸化物燃料電池の燃料極支持体の製造方法。
- 前記金属は、Zr、Ce、Ti、Mg、Al、Si、Mn、Fe、Co、Ni、Cu、Zn、Mo、Y、Nb、Sn、La、Ta、VおよびNdからなる群から選択された1つまたは2つ以上であることを特徴とする、請求項1〜4のいずれか一項に記載の固体酸化物燃料電池の燃料極支持体の製造方法。
- 前記酸素イオン伝導性を有する無機酸化物は、ガドリニウムがドープされたセリア(GDC)、ガドリニウムがドープされたジルコニア(GDZ)、サマリウムがドープされたセリア(SDC)、サマリウムがドープされたジルコニア(SDZ)、イットリウムがドープされたセリア(YDC)、イットリウムがドープされたジルコニア(YDZ)、イットリア安定化ジルコニア(YSZ)およびスカンジア安定化ジルコニア(ScSZ)からなる群から選択された1つまたは2つ以上であることを特徴とする、請求項1〜5のいずれか一項に記載の固体酸化物燃料電池の燃料極支持体の製造方法。
- 前記表面処理された表面の粗さは150ナノメートル以上900ナノメートル以下であることを特徴とする、請求項1〜6のいずれか一項に記載の固体酸化物燃料電池の燃料極支持体の製造方法。
- 前記表面処理された表面の面積固有抵抗(ASR:area specific resistance)は0.01Ωcm2以上0.45Ωcm2以下であることを特徴とする、請求項1〜7のいずれか一項に記載の固体酸化物燃料電池の燃料極支持体の製造方法。
- 前記表面処理された表面の表面積は、表面処理前の表面積より1.5倍以上10倍以下に増加することを特徴とする、請求項1〜8のいずれか一項に記載の固体酸化物燃料電池の燃料極支持体の製造方法。
- 前記表面処理された表面は電解質と接する部分であることを特徴とする、請求項1〜9のいずれか一項に記載の固体酸化物燃料電池の燃料極支持体の製造方法。
- 請求項1〜10のいずれか一項に記載の方法を利用して燃料極支持体を準備するステップ、および前記燃料極支持体の表面処理された表面にイオン伝導性を有する無機酸化物を塗布して電解質を形成するステップを含む固体酸化物燃料電池の製造方法。
- 前記電解質に含まれる無機酸化物は、燃料極支持体に含まれる無機酸化物と同一であることを特徴とする、請求項11に記載の固体酸化物燃料電池の製造方法。
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KR20130115512 | 2013-09-27 | ||
KR10-2013-0115512 | 2013-09-27 | ||
PCT/KR2014/009062 WO2015046977A1 (ko) | 2013-09-27 | 2014-09-26 | 고체 산화물 연료전지의 연료극 지지체 제조방법 및 고체 산화물 연료전지의 연료극 지지체 |
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JP6194423B2 true JP6194423B2 (ja) | 2017-09-06 |
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KR102054537B1 (ko) * | 2015-08-26 | 2019-12-10 | 주식회사 엘지화학 | 고체 산화물 연료전지의 제조방법, 고체 산화물 연료전지 및 이를 포함하는 전지 모듈 |
KR101670612B1 (ko) | 2015-11-10 | 2016-11-10 | 한양대학교 산학협력단 | 평판형 고체 산화물 연료전지의 제조 방법 |
JP6910170B2 (ja) * | 2017-03-22 | 2021-07-28 | 大阪瓦斯株式会社 | 金属支持型電気化学素子用の電極層付基板、電気化学素子、電気化学モジュール、電気化学装置、エネルギーシステム、固体酸化物形燃料電池、および製造方法 |
KR102142551B1 (ko) | 2017-07-20 | 2020-08-07 | 주식회사 엘지화학 | 이차전지용 전극 제조시스템 및 제조방법 |
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KR20120080375A (ko) * | 2011-01-07 | 2012-07-17 | 삼성전자주식회사 | 연료전지용 양극 소재, 이를 포함하는 연료전지용 양극과 그 양극의 제조방법, 및 고체산화물 연료전지 |
JP5932232B2 (ja) * | 2011-03-25 | 2016-06-08 | 株式会社日本触媒 | アノード支持型ハーフセル及びこれを用いたアノード支持型セル、並びにアノード支持型ハーフセルの製造方法 |
JP5819099B2 (ja) * | 2011-05-11 | 2015-11-18 | 日本特殊陶業株式会社 | 固体酸化物形燃料電池 |
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JP2016528693A (ja) | 2016-09-15 |
CN105493328B (zh) | 2018-02-06 |
CN105493328A (zh) | 2016-04-13 |
KR101674259B1 (ko) | 2016-11-08 |
EP3021396B1 (en) | 2019-11-06 |
US20160197355A1 (en) | 2016-07-07 |
KR20150035457A (ko) | 2015-04-06 |
US10505198B2 (en) | 2019-12-10 |
EP3021396A1 (en) | 2016-05-18 |
EP3021396A4 (en) | 2017-01-25 |
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