Novel solid polymer electrolyte and multilayer...

Details Novel solid polymer electrolyte and multilayer... Novel solid polymer electrolyte and multilayer...

C - Chemistry, Metallurgy

08

G

C08G 65/24 (2006.01) C08L 71/03 (2006.01) H01B 1/12 (2006.01) H01M 6/18 (2006.01) H01M 10/40 (2006.01)

Patent

CA 2275354

The invention concerns a solid polymer electrolyte characterised in that it comprises a matrix formed, at least partially, of cross-linked polymer comprising units derived from ethylene oxide and units derived from ethylene oxide substituted with a reactive radical by substitution and whereof at least one part participates in the cross-linking bond, and at least an ionizable alkaline salt chelated in said matrix. The invention also concerns a multilayer electrochemical assembly (1) formed of a positive electrode (2) and of its current collector (6), of the negative electrode (3) and optionally of its current collector (5), said electrodes being separated by a solid polymer electrolyte (4) of the invention.

L'invention concerne un électrolyte polymère solide caractérisé en ce qu'il comprend d'une part une matrice formée, au moins en partie, de copolymère réticulé comprenant des motifs dérivés de l'oxyde d'éthylène et des motifs dérivés de l'oxyde d'éthylène substitués par un radical réactif par substitution et dont au moins une partie participe à la liaison de réticulation, d'autre part au moins un sel alcalin ionisable complexé dans ladite matrice. Elle concerne également un ensemble électrochimique multicouche (1) formé d'une électrode positive (2) et de son collecteur de courant (6), de l'électrode négative (3) et éventuellement de son collecteur de courant (5), lesdites électrodes étant séparées par un électrolyte polymère solide (4) selon l'invention.

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