发明授权
US07803494B2 Stress reducing mounting for electrolyte sheet assembly in a solid oxide fuel cell
失效
用于固体氧化物燃料电池中的电解质片组件的减压安装
- 专利标题: Stress reducing mounting for electrolyte sheet assembly in a solid oxide fuel cell
- 专利标题(中): 用于固体氧化物燃料电池中的电解质片组件的减压安装
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申请号: US11233679申请日: 2005-09-23
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公开(公告)号: US07803494B2公开(公告)日: 2010-09-28
- 发明人: Michael Edward Badding , Jeffrey Earl Cortright , John David Helfinstine , Thomas Dale Ketcham , Scott Christopher Pollard , Irene M. Slater , Dell Joseph St Julien , Sujanto Widjaja
- 申请人: Michael Edward Badding , Jeffrey Earl Cortright , John David Helfinstine , Thomas Dale Ketcham , Scott Christopher Pollard , Irene M. Slater , Dell Joseph St Julien , Sujanto Widjaja
- 申请人地址: US NY Corning
- 专利权人: Corning Incorporated
- 当前专利权人: Corning Incorporated
- 当前专利权人地址: US NY Corning
- 代理商 Svetlana Z. Short
- 主分类号: H01M8/02
- IPC分类号: H01M8/02 ; H01M8/12
摘要:
A stress reducing mounting for an electrolyte sheet assembly in a solid electrolyte fuel cell is provided that includes a support frame or manifold having an inner edge portion that supports a peripheral portion of the sheet assembly, a seal that affixes an edge of the peripheral portion to the frame or manifold, and a stress reducer disposed around the peripheral portion of the electrolyte sheet and the frame or manifold that reduces tensile stress in the peripheral portion of the electrolyte sheet when the peripheral portion is bent by pressure differentials or thermal differential expansion. The stress reducer is at least one of a convex curved surface on the inner edge portion of the frame or manifold that makes area contact with the peripheral portion when it bends in response to a pressure differential or thermal differential expansion, and a stiffening structure on the sheet peripheral portion that renders the ceramic sheet material forming the peripheral portion more resistant to bending. The stress reducing mounting reduces cracking in the electrolyte sheet at the peripheral portions due to tensile forces.
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