Producing electrode active layer from active carbon...

Details Producing electrode active layer from active carbon... Producing electrode active layer from active carbon...

C - Chemistry, Metallurgy

25

B

204/198, 18/541

C25B 11/04 (2006.01) C25B 11/12 (2006.01) C25C 7/02 (2006.01) C25D 17/10 (2006.01) D01D 5/42 (2006.01) D01G 1/00 (2006.01) H01M 4/88 (2006.01) H01M 4/96 (2006.01)

Patent

CA 1208168

ABSTRACT The present invention is directed to three-layer laminates which include an active layer or sheet cont- aining from about 60 to about 85 weight percent active carbon, the remainder being unsintered, fibril- lated polytetrafluoroethylene in intimate admixture with the active carbon, the active layer being laminated on its working surface to a current distributor and on its opposite surface to a porous, coherent, hydrophobic polytetrafluoroethylene-containing wetproofing layer. The three-layer laminates are suitable for use as oxygen (air) cathodes in chlor-alkali and other electro- chemical cells, fuel cells and in other electrochemical applications.

387766

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