Novel solid polymer electrolytes

H - Electricity – 01 – B

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Details

H01B 1/12 (2006.01) C08G 73/02 (2006.01) C08G 75/02 (2006.01) H01M 6/18 (2006.01) H01M 10/40 (2006.01)

Patent

CA 2049340

An amorphous ionically conductive macromolecular solid is set forth having improved ambient temperature ionic conductivity. The solid comprises a solid solution of at least one positively charged ionic species dissolved in a macromolecular material, the macromolecular material comprising a polymer or copolymer having a polyether structure and having at least a portion of the ether oxygens thereof replaced with S or NR wherein R includes at least one basic site capable of associating with the positively charged ionic species and has 2 to 10 carbon atoms. Relatively high conductivity is a feature of the macromolecular solid of the invention.

On décrit un solide macromoléculaire amorphe et à conductivité ionique présentant une conductibilité ionique améliorée à la température ambiante. Le solide comporte une solution solide d'au moins une espèce ionique à charge positive dissoute dans un matériau macromoléculaire, ce matériau macromoléculaire comportant un polymère ou copolymère à structure polyéther dont au moins une partie des oxygènes éthériques sont remplacés par S ou NR, où R comprend au moins un site de base pouvant s'associer à l'espèce ionique à charge positive et possédant entre 2 et 10 atomes de carbone. Une conductivité relativement élevée caractérise le solide macromoléculaire précité.

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