发明授权
- 专利标题: Structures and methods of manufacture for gas diffusion electrodes and electrode components
- 专利标题(中): 气体扩散电极和电极组件的制造结构和方法
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申请号: US184089申请日: 1998-10-30
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公开(公告)号: US6103077A公开(公告)日: 2000-08-15
- 发明人: Michael DeMarinis , Emory S. De Castro , Robert J. Allen , Khaleda Shaikh
- 申请人: Michael DeMarinis , Emory S. De Castro , Robert J. Allen , Khaleda Shaikh
- 申请人地址: ITX
- 专利权人: De Nora S.p.A.
- 当前专利权人: De Nora S.p.A.
- 当前专利权人地址: ITX
- 主分类号: H01M4/86
- IPC分类号: H01M4/86 ; C25B11/03 ; H01M4/88 ; H01M4/92 ; H01M4/96 ; H01M8/02 ; H01M8/10 ; C25B11/00
摘要:
Gas Diffusion Electrodes (GDES) play a pivotal role in clean energy production as well as in electrochemical processes and sensors. These gas-consuming electrodes are typically designed for liquid electrolyte systems such as phosphoric acid and alkaline fuel cells, and are commercially manufactured by hand or in a batch process. However, GDEs using the new electrolytes such as conductive polymer membranes demand improved electrode structures.This invention pertains to GDEs and gas diffusion media with new structures for systems using membrane electrode assemblies (MEAs), and automated methods of manufacture that lend themselves to continuous mass production Unexpected improvements in gas and vapor transport through the electrode are realized by incorporating a new dispersion process in the construction, reformulating the applied mix with solution additives, and creating a novel coating structure on a conductive web. Furthermore, combining these changes with a judicious choice in coating methodology allows one to produce these materials in a continuous, automated fashion.
公开/授权文献
- US5482697A Method of making V.sub.6 O.sub.13+x [0<X.ltoreq.2.0] 公开/授权日:1996-01-09