Gel-type polymer electrolyte and use thereof

Details Gel-type polymer electrolyte and use thereof Gel-type polymer electrolyte and use thereof

C - Chemistry, Metallurgy

08

F

C08F 222/14 (2006.01) C08G 63/02 (2006.01) C08G 65/00 (2006.01) C08J 5/22 (2006.01) C08L 71/00 (2006.01) C08L 71/02 (2006.01) H01B 1/12 (2006.01) H01G 9/00 (2006.01) H01G 9/20 (2006.01) H01M 6/18 (2006.01) H01M 6/22 (2006.01) H01M 10/36 (2006.01) H01M 10/40 (2006.01)

Patent

CA 2426129

A gel-type polymer electrolyte, wherein said polymer comprises(A) an ethylene- unsaturated carboxylic acid copolymer or aderivative thereof and (B) a polyalkylene oxide having a hydroxylgroup at one terminal thereof or a derivative thereof, which arebonded together by an ester bond. The gel-type polymer electrolytehas a high ionic conductivity, and makes it possible to provides acell which has excellent charge/discharge characteristics at low temperatures as well as at high temperatures.

L'invention concerne un électrolyte polymère géliforme. Ledit copolymère comprend (A) un copolymère d'acide carboxylique insaturé par éthylène ou un de ses dérivés et (B) un oxyde de polyalkylène ayant un groupe hydroxyle à une de ses terminaisons ou un de ses dérivés, qui sont liés mutuellement par une liaison ester. Cet électrolyte polymère géliforme présente une conductivité ionique élevée et permet d'obtenir une cellule comportant d'excellentes caractéristiques en matière de charge/décharge à basses températures comme à températures élevées.

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