JP2013122926A - 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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Abstract
【解決手段】本発明によれば、固体酸化物燃料電池デバイスおよび複数の燃料デバイスを組み込んだ燃料電池システムが提供され、個々のデバイスは、長さの第1の部分に作動反応温度まで加熱するための反応ゾーンを有し、かつ、長さの第2の部分に、反応ゾーンが加熱された場合に作動反応温度未満の低温を維持する少なくとも1つのコールドゾーンを有する細長い基板を備えている。一実施形態では、電解質は、反応ゾーン内のアノードとカソードの間に配置されており、アノードおよびカソードは、それぞれ、低温で電気接続するための少なくとも1つのコールドゾーンの外部表面まで延在している電気経路を有している。
【選択図】図30A
Description
前に、その体積によって余分の時間を空洞の中で費やすことができ、したがってチャンバの中で空気分子が加熱されるため、加熱された空気分子を長さが短い通路を使用して能動ゾーンへ供給することができる。このような空洞すなわち予熱チャンバは、多くの異なる方法で準備することができ、たとえば、未焼結(グリーン)(すなわち焼結前)アセンブリを取得し、アセンブリの末端を穿孔することによってチャンバを形成することができ、あるいは未焼結(グリーン)スタックを形成する際に、その中に大量の有機材料を組み込み、焼結中、SOFC Stick(商標)デバイスから有機材料を焼き出すことによって準備することができる。
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 (8)
- 燃料電池デバイスであって、
一定の長さを間に有する第1のエンドおよび反対側の第2のエンド、前記第1のエンドに隣接する前記長さの第1の部分に沿ったコールドゾーン、および前記第2のエンドに隣接する前記長さの第2の部分に沿ったホット反応ゾーンを有する細長い基板であって、前記ホット反応ゾーンが作動反応温度まで加熱されるように構成され、前記コールドゾーンが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細長い基板と、
前記細長い基板内の前記ホット反応ゾーンを通って前記第2のエンドに隣接する対応する燃料出口まで延在している細長い燃料通路に結合された前記コールドゾーン内の燃料入口と、
前記細長い基板内の前記ホット反応ゾーンを通って、前記第2のエンドに隣接している対応する酸化剤出口まで、前記細長い燃料通路に平行に、かつ、互いに対向する関係で延在している細長い酸化剤通路に結合された前記コールドゾーン内の酸化剤入口と、
前記細長い基板内の前記ホット反応ゾーンの中の前記燃料通路に隣接するアノードであって、前記コールドゾーンの中で前記細長い基板の第1の外部接触表面に電気的に結合されたアノードと、
前記細長い基板内の前記ホット反応ゾーンの中の前記酸化剤通路に隣接するカソードであって、前記コールドゾーンの中で前記細長い基板の第2の外部接触表面に電気的に結合されたカソードと、
前記アノードとカソードの間の固体電解質と、
前記第1の外部接触表面への負の電気接続と、
前記第2の外部接触表面への正の電気接続と
を備えた燃料電池デバイス。 - 前記第1のエンドと前記第2のエンドの間の前記長さが前記細長い基板の幅および厚さより実質的に長く、それにより前記細長い基板が前記長さと同一の広がりを持つただ一つの主軸を有する熱膨張率を有する、請求項1に記載の燃料電池デバイス。
- 前記第1の部分が、その幅または厚さより実質的に長い細長い部分であり、したがって前記第1の部分は前記第1の部分の前記長さと同一の広がりを持つ主軸を有する熱膨張率を有し、また、前記ホット反応ゾーンはその幅より実質的に長くない広い表面積セクションを備え、したがって前記広い表面積セクションが、前記長さに沿った第1の軸および前記長さを横切る第2の軸を有する熱膨張率を有する、請求項1または2に記載の燃料電池デバイス。
- 前記第2の部分が前記第1の部分より薄く、また、前記第2の部分が巻き込まれた、請求項1ないし3のいずれか一項に記載の燃料電池デバイス。
- 請求項1ないし4のいずれか一項に記載の前記デバイスを使用する方法であって、
前記ホット反応ゾーンをホットゾーンチャンバ内に備え、前記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前記細長い基板を配置する段階と、
前記ホットゾーンチャンバの外側で、前記燃料入口と流体連通している前記コールドゾーンに燃料サプライを結合する段階と、
前記ホットゾーンチャンバの外側で、前記酸化剤入口と流体連通している前記コールドゾーンに空気サプライを結合する段階と、
前記コールドゾーンを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内の対応する前記燃料通路および酸化剤通路に対応する前記燃料入口および酸化剤入口を介して燃料および空気を供給する段階であって、それにより前記燃料と空気が反応して、対応する前記第1および第2の外部接触表面および対応する前記負および正の電気接続へ移動する電子が生成される段階と
を含む方法。 - 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ないし4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ホット反応ゾーンが前記ホットゾーンチャンバ内に配置され、前記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た、前記ホット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合された熱源と、
前記ホットゾーンチャンバの外側で、前記燃料通路と流体連通している前記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、
前記ホットゾーンチャンバの外側で、前記酸化剤通路と流体連通している前記コールド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
を備えた燃料電池システム。 - 前記熱源と前記コールドゾーンの間の、前記コールドゾーンを前記作動反応温度未満の温度に維持するように適応された絶縁領域をさらに備えた、請求項6に記載の燃料電池システム。
- 請求項6または7に記載の前記システムを使用する方法であって、
前記コールドゾーンを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、
対応する前記燃料サプライおよび空気サプライから対応する前記燃料通路および空気通路に燃料および空気を供給し、延いては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、それにより前記燃料と空気が反応して、対応する前記第1および第2の外部接触表面および対応する前記負および正の電気接続へ移動する電子が生成される段階と
を含む方法。
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