Polymeric solid electrolytes and production process thereof

A process for the production of a polymeric solid electrolyte, which comprises reacting, in the presence of a radical polymerization initiator and a radical polymerization initiator accelerator, the following compounds:

• a) a compound selected from the group consisting of alkali metal perchlorates, alkali metal tetrafluoroborates, alkali metal hexafluorophosphates, alkali metal trifluoroacetates, alkali metal trifluoromethanesulfonates, quaternary ammonium perchlorates, quaternary ammonium tetrafluoroborates, quaternary ammonium hexafluorophosphates, quaternary ammonium trifluoromethane sulfonates, N-alkylpyridium perchlorates, N,N-dialkylpyrrolidium perchlorates, N-alkylpyrrolidium tetrafluoroborates, N,N-dialkylpyrrolidium tetrafluoroborates, N-alkylpyrrolidium hexafluorophosphates and N,N-dialkylpyrrolidium hexalfuorophosphates;
• b) a compound selected from the group consisting of ethylene carbonate, propylene carbonate, .gamma.-butyrolactone, dimethoxyethane, acetonitrile, dimethylsulfoxide, dioxolane and sulfolane;
• c) a compound having the formula:
• ##STR17## wherein R.sup.5 is an alkyl group having 1 to 5 carbon atoms, or a group of the formula:
• ##STR18## wherein R.sup.6 is a hydrogen atom or an alkyl group of 1 to 5 carbon atoms;
• and
• d) a compound having the formula:
• ##STR19## wherein R.sup.7 and R.sup.8 are independently each a hydrogen atom or an alkyl group having 1 to 5 carbon atoms, and n is an integer such that 1.ltoreq.n.ltoreq.30.

A process for the production of a polymeric solid electrolyte, which comprises mixing the following liquids A and B, at least one of said liquids A and B containing an alkali metal salt or a quaternary ammonium salt or both, wherein

• liquid A comprises, as basic components, the following compounds:
• i. a compound having the formula (2):
• ##STR20## wherein R.sup.5 is an alkyl group having 1 to 5 carbon atoms or a group of the formula:
• ##STR21## wherein R.sup.6 is a hydrogen atom or an alkyl group having 1 to 5 carbon atoms;
• and
• ii) a compound represented by the formula (3):
• ##STR22## wherein R.sup.7 and R.sup.8 are each independently a hydrogen atom or an alkyl group having 1 to 5 carbon, and wherein n is an integer such that 1.ltoreq.n.ltoreq.30;
• and
• a radical polymerization initiation accelerator;
• and
• wherein liquid B comprises, as basic components, the following compounds:
• i) a compound selected from the group consisting of ethylene carbonate, propylene carbonate .gamma.-butyrolactone, dimethoxyethane, acetonitrile, dimethylsulfoxide, dioxolane and sulfolane;
• and
• a radical polymerization initiator.