Solid polymer electrolyte, battery and solid-state electric...

C - Chemistry – Metallurgy – 08 – L

Patent

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Details

C08L 101/12 (2006.01) C08F 290/06 (2006.01) C08F 290/14 (2006.01) C08G 18/28 (2006.01) C08G 18/48 (2006.01) C08G 18/81 (2006.01) C08G 65/329 (2006.01) C08G 65/332 (2006.01) C08G 65/333 (2006.01) H01B 1/12 (2006.01) H01G 9/02 (2006.01) H01G 9/15 (2006.01) H01G 13/00 (2006.01) H01M 4/60 (2006.01) H01M 4/62 (2006.01) H01M 6/16 (2006.01) H01M 6/18 (2006.01) H01M 10/38 (2006.01) H01M 10/40 (2006.01) H01M 6/40 (2006.01)

Patent

CA 2212348

A solid polymer electrolyte comprising a composite of: (a) a polymer obtainable from at least one compound which contains a structure derived from a polyhydric alcohol having three or more hydroxyl groups, at least two hydrogen atoms of said alcoholic hydroxyl groups being each replaced by a unit represented by a general formula (1): CH2=C(R1)C(=O)[O(CH2)x(CH(CH3))y]zNHC(=O)OR2- wherein R1 represents a hydrogen or a methyl group; R2 represents a divalent organic group containing at least one oxyalkylene group; x and y each represents a number of 0 to 5; z represents a number of 0 to 10; and (b) at least one electrolyte salt. The solid polymer electrolyte has good film strength and processability as well as high ionic conductivity, and is useful for fabricating thin electrodes, batteries and electric double layer capacitors which are free from the leakage of any solution.

La présente invention concerne un électrolyte polymère solide comprenant: (a) un polymère qui s'obtient à partir d'au moins un composé comportant une structure dérivée d'un alcool polyhydrique ayant trois groupes hydroxyles ou davantage, au moins deux atomes d'hydrogène de ces groupes hydroxyles alcooliques étant remplacés chacun par un motif représenté par la formule générale (1): CH¿2?=C(R?1¿)C(=O)[O(CH¿2?)¿x?(CH(CH¿3?))¿y?]¿z?NHC(=O)OR?2¿-, dans laquelle R?1¿ représente un atome d'hydrogène ou un groupe méthyle, R?2¿ un groupe organique divalent comportant au moins un groupe oxyalkylène, x et y représentent chacun un nombre de 0 à 5, z un nombre de 0 à 10, et (b) au moins un sel électrolytique. L'électrolyte polymère solide possède, sous forme de film, une bonne résistance et une bonne aptitude à la transformation ainsi qu'une conductivité ionique élevée, et est utile pour fabriquer des électrodes minces, des piles et des condensateurs électriques à double couche, les uns et les autres étant exempts de toute fuite de solution.

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