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1. 发明授权

US07645535B2 Method and materials for bonding electrodes to interconnect layers in solid oxide fuel cell stacks 有权
标题翻译：用于将电极连接到固体氧化物燃料电池堆中的互连层的方法和材料
公开(公告)号：US07645535B2
公开(公告)日：2010-01-12
申请号：US11271946
申请日：2005-11-14
申请人： Timothy Joseph Rehg , Jie Guan , Kurtis C. Montgomery , Atul Kumar Verma , Gregory Robert Lear
发明人： Timothy Joseph Rehg , Jie Guan , Kurtis C. Montgomery , Atul Kumar Verma , Gregory Robert Lear
IPC分类号： H01M8/12 , H01M8/10 , H01M2/00 , H01M2/02 , C04B35/64
CPC分类号： H01M8/2404 , C04B37/005 , C04B37/006 , C04B37/025 , C04B37/026 , C04B2237/04 , C04B2237/06 , C04B2237/066 , C04B2237/123 , C04B2237/124 , C04B2237/125 , H01M8/0228 , H01M8/028 , H01M8/0286 , H01M8/0297 , H01M8/2425 , H01M2008/1293
摘要： A method and related bonding compositions for use in assembling a solid oxide fuel cell (“SOFC”) stack having thermally and chemically stable and electrically conductive bonds between alternating fuel cells and interconnect components in the stack. The improved method and materials allow for the assembly of solid oxide fuel cells having a stronger and more reliable bond with good electrical contact in situ between the SOFC interconnect layers (plates) and the electrodes. The bonding materials and method according to the invention provide good electrical performance while maintaining the mechanical and electrical integrity of SOFC stacks without requiring excessive mechanical compression of the stack as exemplified by prior art systems. The preferred bonding agents comprise a primary phase that provides the electrical conduction path during fuel cell operation, as well as the mechanical strength necessary to insure a reliable connection between the interconnect and the relevant anode or cathode surfaces of the fuel cell. Secondary phases can be added in small amounts to the primary phase to improve adhesion. An exemplary method according to the invention also contemplates various different steps for pre-treating the surfaces of the interconnect plates and electrodes to improve their surface bonding properties.
摘要翻译：一种用于组装固体氧化物燃料电池（“SOFC”）堆叠的方法和相关的粘合组合物，其在交替的燃料电池和叠层中的互连部件之间具有热和化学稳定且导电的结合。改进的方法和材料允许组装固体氧化物燃料电池，其具有更强和更可靠的结合，在SOFC互连层（板）和电极之间原位具有良好的电接触。根据本发明的接合材料和方法提供良好的电性能，同时保持SOFC堆叠的机械和电气完整性，而不需要堆叠的过度机械压缩，如现有技术系统所示。优选的粘合剂包括在燃料电池操作期间提供导电路径的主相以及确保在互连和燃料电池的相关阳极或阴极表面之间的可靠连接所必需的机械强度。次相可以少量添加到主相以改善粘附性。根据本发明的示例性方法还考虑了用于预处理互连板和电极的表面以改善其表面粘合性质的各种不同步骤。

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