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1. 发明申请

WO1997032720A1 CHEMICALLY PROTECTED ELECTRODE SYSTEM 审中-公开
标题翻译：化学保护电极系统
公开(公告)号：WO1997032720A1
公开(公告)日：1997-09-12
申请号：PCT/US1996010261
申请日：1996-06-10
申请人： BILL, John, L.
IPC分类号： B32B18/00
CPC分类号： H01M4/8621 , H01M2/1673 , H01M4/00
摘要： Conductive ceramics are useful in the construction of electrochemical electrodes that are used in a wide variety of applications because of their inherent chemical resistance. When porous forms of these ceramics are employed as electrodes in even dilute corrosive solutions, corrosive ionic species are caused to diffuse from the solutions into the porous electrode and to concentrate in the vicinity of the electrical connection by means of electromigration. The resulting corrosive degradation of the electrode and the electrical connection ultimately causes electrical failure. The present invention uses polymers to impregnate the ceramic and create a barrier seal against the migration of corrosives into the electrode. Methods for achieving such impregnation are disclosed. Reference is made to the Figure which depicts the preferred embodiment of the invention. Depicted is a cross-sectional view of a slab of porous ceramic (1) showing infiltration by an amount of polymer sufficient to form such a barrier seal. The polymer has been infiltrated through exterior surfaces (7) to form a polymer filled region (3) surrounding a polymer free region (5) interior to the ceramic.
摘要翻译：导电陶瓷由于其固有的耐化学性而用于各种应用中使用的电化学电极的构造中。当这些陶瓷的多孔形式用作甚至稀释腐蚀性溶液中的电极时，会引起腐蚀性离子物质从溶液扩散到多孔电极中，并通过电迁移集中在电连接附近。所导致的电极和电连接的腐蚀性降低最终导致电气故障。本发明使用聚合物浸渍陶瓷并产生抵抗腐蚀剂向电极迁移的阻挡密封。公开了实现这种浸渍的方法。参考描述本发明的优选实施例的附图。示出了多孔陶瓷（1）的横截面图，其显示出足以形成这种阻挡密封的一定量聚合物的渗透。聚合物已经通过外表面（7）渗透以形成围绕陶瓷内部的无聚合物区域（5）的聚合物填充区域（3）。

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