Composite membrane useful as an electrode separator

Details Composite membrane useful as an electrode separator Composite membrane useful as an electrode separator

C - Chemistry, Metallurgy

25

B

204/201, 204/91.

C25B 13/08 (2006.01) H01M 2/16 (2006.01)

Patent

CA 1330547

ABSTRACT OF THE DISCLOSURE A process for making a polymeric ion exchange membrane comprises providing a membrane comprising a first polymeric material which defines a porous matrix, and a second material which includes a photoinitiator and which at least partially fills, and thereby blocks, the pores of the matrix, and exposing the membrane to UV radiation so as to polymerise and to crosslink the second material, the thickness of the membrane being less than 250 µm. The membrane is particularly useful as an electrode separator in an electrochemical device, allowing ionic conduction, and presenting a barrier to electrode particles, between the electrodes of the device.

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