JP5745747B2 - ホット部分およびコールド部分を有する細長い基板を備えた固体酸化物燃料電池デバイス - Google Patents
ホット部分およびコールド部分を有する細長い基板を備えた固体酸化物燃料電池デバイス Download PDFInfo
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Description
11a 第1のエンド
11b 第2のエンド
12 燃料入口
13 燃料予熱チャンバ
14 燃料通路
16 燃料出口
18 空気入口
19 空気予熱チャンバ
20 空気通路
21 排気通路
22 空気出口
24 アノード層
25 露出したアノード部分
26 カソード層
27 露出したカソード部分
28 電解質層
30 コールドゾーン(または第2の温度)
31 移行ゾーン
32 ホットゾーン(または加熱ゾーンあるいは第1の温度ゾーン)
33a 予熱ゾーン
33b 能動ゾーン
34 燃料サプライ
36 空気サプライ
38 負の電圧ノード
40 正の電圧ノード
42 配線
44 コンタクトパッド
46 はんだ接続
48 ばねクリップ
50 供給管
52 タイラップ
54 セラミック柱
56 第1のビアビア
58 第2のビアビア
60 障壁コーティング
62 表面粒子
64 テクスチャード表面層
66 アノード懸垂
70 開口
72 有機材料
80 左側
82 右側
84 橋絡部分
90 ブリッジ
100 SOFC Stick(商標)デバイス
102 細長いセクション
104 広い表面積セクション
106 細長いセクション
200 螺旋管状SOFC Stick(商標)デバイス
300 同心管状SOFC Stick(商標)デバイス
400 エンド−ロールSOFC Stick(商標)デバイス
402 分厚い部分
404 薄い部分
Claims (19)
- 固体酸化物燃料電池デバイスであって、
外部表面、内部固体セラミック支持構造、及び最大寸法である長さを有する細長いセラミック基板であって、
前記長さと同一の広がりを持つ主軸に沿った熱膨張を示し、
前記長さの第1の部分に沿った、作動反応温度まで加熱されるように構成された反応ゾーン、および
前記長さの第2の部分に沿った、前記反応ゾーンが加熱された場合に前記作動反応温度未満の低温を維持するように構成された少なくとも1つのコールドゾーンであって、前記細長いセラミック基板の第1のエンドと第2のエンドのそれぞれに位置された第1のコールドゾーン及び第2のコールドゾーンを含み、該第1のコールドゾーンと第2のコールドゾーンとの間に前記反応ゾーンが位置されているところの前記少なくとも1つのコールドゾーン
を有する細長いセラミック基板と、
前記反応ゾーン内のアノードとカソードの間に配置された電解質であって、前記電解質、アノード及びカソードは前記内部固体セラミック支持構造の中に延在しており、前記電解質は前記内部固体セラミック支持構造とモノリシックであり、並びに前記アノードおよびカソードはそれぞれ、前記作動反応温度未満の低温での電気接続のための、前記内部固体セラミック支持構造の中から前記少なくとも1つのコールドゾーン内の前記外部表面まで延在している電気経路を有しているところの電解質、アノードおよびカソードと、
前記アノードに関連し、前記第1のコールドゾーンにおける前記細長いセラミック基板の前記第1のエンド内における燃料入口から前記反応ゾーンへ延在しており、さらに前記反応ゾーンまたは前記第2のコールドゾーンにおける前記細長いセラミック基板の前記第2のエンドのうちの1つにおける燃料出口へ延在している燃料通路と、
前記カソードに関連し、前記第2のコールドゾーンにおける前記細長いセラミック基板の前記第2のエンド内の空気入口から前記反応ゾーン内若しくは前記第1のコールドゾーン内の前記第1のエンド内の空気出口へ、または前記反応ゾーン内の空気入口から前記少なくとも一つのコールドゾーン内の空気出口へ延在している酸化剤通路と、
を備えた燃料電池デバイス。 - 前記少なくとも1つのコールドゾーン内の前記外部表面に加えられた、前記アノードの前記電気経路と電気接触している第1の金属導体パッド、および前記第1の金属導体パッドと負の電圧ノードとの間の第1の電圧接続と、
前記少なくとも1つのコールドゾーン内の前記外部表面に加えられた、前記カソードの前記電気経路と電気接触している第2の金属導体パッド、および前記第2の金属導体パッドと正の電圧ノードとの間の第2の電圧接続と
をさらに備えた、請求項1に記載の燃料電池デバイス。 - 前記第1および第2の電圧接続が、それぞれ対応する前記第1および第2の金属導体パッドにはんだ付けされた配線である、請求項2に記載の燃料電池デバイス。
- 前記第1および第2の電圧接続が、それぞれ対応する前記第1および第2の金属導体パッドに機械接続された配線である、請求項2に記載の燃料電池デバイス。
- 前記燃料通路と流体連通している前記少なくとも1つのコールドゾーンに結合された、前記燃料通路に燃料の流れを供給するための燃料サプライと、
前記酸化剤通路と流体連通している前記第2のコールドゾーンまたは前記反応ゾーンに結合された、前記酸化剤通路に空気の流れを供給するための空気サプライと、をさらに備えた請求項1に記載の燃料電池デバイス。 - 前記燃料サプライ及び、前記空気入口が第2のコールドゾーン内の第2のエンドにある場合は前記空気サプライが、それぞれ前記デバイスの末端に固着された可撓性ゴム管またはプラスチック管によって結合された、請求項5に記載の燃料電池デバイス。
- 前記第1の部分が、前記少なくとも1つのコールドゾーンと前記反応ゾーンの間に予熱ゾーンをさらに備え、前記アノードおよび前記カソードが、前記細長いセラミック基板の前記反応ゾーンの中でそれぞれ対応する前記燃料通路および酸化剤通路に互いに対向する関係で関連し、かつ、それらの間に前記電解質を備え、また、前記予熱ゾーンには互いに対向する関係のアノードおよびカソードが存在していない、請求項1に記載の燃料電池デバイス。
- 前記アノードの前記電気経路が、前記関連する燃料通路から、前記反応ゾーンの第1の外部表面まで、及び、前記反応ゾーンの第1の外部表面に前記少なくとも1つのコールドゾーンの前記対応する外部表面まで形成された第1の外部金属被覆まで延在し、また、前記カソードの前記電気経路が、前記関連する酸化剤通路から前記反応ゾーンの第2の外部表面まで、及び、前記反応ゾーンの第2の外部表面に前記少なくとも1つのコールドゾーンの前記対応する外部表面まで形成された第2の外部金属被覆まで延在している、請求項7に記載の燃料電池デバイス。
- 前記燃料通路および前記酸化剤通路はそれぞれ、前記少なくとも1つのコールドゾーンの中に予熱チャンバをさらに備え、及び少なくとも部分的に前記予熱ゾーンの中へ延在しており、予熱チャンバの各々が前記反応ゾーン内の前記対応する燃料通路および酸化剤通路の体積より大きい体積を有する、請求項7に記載の燃料電池デバイス。
- 前記燃料出口は前記第2のコールドゾーン内の前記第2のエンドにあり、前記空気出口は前記第1のコールドゾーン内の前記第1のエンドにある請求項1に記載の燃料電池デバイス。
- 前記燃料入口に結合された、前記燃料通路に燃料の流れを供給するための燃料サプライと、
前記空気入口に結合された、前記酸化剤通路に空気の流れを供給するための空気サプライと
をさらに備えた、請求項10に記載の燃料電池デバイス。 - 前記燃料出口は前記第2のコールドゾーン内の前記第2のエンドにあり、前記空気入口は前記反応ゾーンにあり、前記空気出口が前記第2のコールドゾーン内の第2のエンドにある、請求項1に記載の燃料電池デバイス。
- 前記燃料入口に結合された、前記燃料通路に燃料の流れを供給するための燃料サプライと、
前記反応ゾーン内の、前記酸化剤通路に加熱された空気の流れを供給するための加熱空気源と
をさらに備えた、請求項12に記載の燃料電池デバイス。 - 前記酸化剤通路が、前記第1の部分の大部分に沿って前記細長いセラミック基板の一方の側に開き、それにより前記空気入口は前記大部分に沿った前記酸化剤通路と同じ大きさになる、請求項12に記載の燃料電池デバイス。
- 前記酸化剤通路の中に複数の支柱をさらに備えた、請求項14に記載の燃料電池デバイス。
- 前記第1の部分に隣接して配置されて、前記反応ゾーンを前記作動反応温度まで加熱するための熱源と、
前記熱源と前記少なくとも1つのコールドゾーンの間の、前記少なくとも1つのコールドゾーンを前記作動反応温度未満の低温に維持するように適合された絶縁領域と
をさらに備えた、請求項1に記載の燃料電池デバイス。 - 燃料電池システムであって、
ホットゾーンチャンバと、
請求項1及び5から15のいずれか一項に記載の複数の前記燃料電池デバイスであって、個々の燃料電池デバイスの前記第1の部分が前記ホットゾーンチャンバ内に配置され、前記少なくとも1つのコールドゾーンが前記ホットゾーンチャンバの外側に延在している複数の燃料電池デバイスと、
前記ホットゾーンチャンバに結合されて、前記反応ゾーンを前記ホットゾーンチャンバ内の前記作動反応温度まで加熱するように適応された熱源と、
前記複数のアノードの前記複数の電気経路のうちの少なくとも1つと電気接触している前記少なくとも1つのコールドゾーン内の複数の外部表面のうちの少なくとも1つに対する第1の電圧接続と、
前記複数のカソードの前記複数の電気経路のうちの少なくとも1つと電気接触している前記少なくとも1つのコールドゾーン内の複数の外部表面のうちの少なくとも1つに対する第2の電圧接続と
を備えた燃料電池システム。 - 請求項1に記載の前記デバイスを使用する方法であって、
前記第1の部分をホットゾーンチャンバ内に備え、かつ、前記第2の部分を前記ホットゾーンチャンバの外側に備えた前記細長いセラミック基板を配置する段階と、
前記少なくとも1つのコールドゾーンを300℃未満の低温に維持しつつ前記反応ゾーンを400℃を超える作動温度まで加熱するために前記ホットゾーンチャンバ内に熱を印加する段階と、
加熱された前記反応ゾーンに燃料および空気を供給する段階であって、前記燃料と空気が反応し、それにより前記アノードおよびカソードの前記電気経路に沿って前記少なくとも1つのコールドゾーン内の前記対応する電気接続まで移動する電子が生成される段階と
を含む方法。 - 請求項17に記載の前記システムを使用する方法であって、
前記少なくとも1つのコールドゾーンを300℃未満の低温に維持しつつ前記反応ゾーンを400℃を超える作動温度まで加熱するために前記ホットゾーンチャンバ内に熱を印加する段階と、
加熱された前記反応ゾーンに燃料および空気を供給する段階であって、前記燃料と空気が反応し、それにより前記アノードおよびカソードの前記電気経路に沿って前記少なくとも1つのコールドゾーン内の前記対応する第1および第2の電圧接続まで移動する電子が生成される段階と
を含む方法。
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