Abstract: Electrolytic membrane for light rechargeable batteries essentially consisting of:1) polymer deriving from the photopolymerization of a mixture essentially consisting of a vinyl ether having the general formula (I) R--?--O--CH.sub.2 CH.sub.2 --!.sub.n --O--CH.dbd.CH.sub.2, and a divinyl ether having the general formula (II) CH.sub.2 .dbd.CH--?--O--CH.sub.2 --CH.sub.2 --!.sub.m --O--CH.dbd.CH.sub.2, in a quantity of between 15 and 60% by weight;2) plasticizer in a quantity of between 35 and 75% by weight;3) Lithium salt in a quantity of between 5 and 20% by weight;4) photopolymerization initiator in such a quantity as to photopolymerize (I) and (II);5) zeolite in a quantity of between 3 and 30% by weight;the percentage sum of components (1) to (5) being equal to 100.

Abstract: Process for the preparation of a current collector in contact with the cathode material in light rechargeable solid state batteries, characterized by the fact that it includes the deposition on a nickel layer having a rugosity R.sub.a from 1 to 3 microns of a cathode paste comprising1) a powder of active cathode material;2) an electronic conductor;3) a polymeric composition comprising:3a) a polymer deriving from the polymerization of a mixture of a vinyl ether and a divinyl ether;3b) lithium salts, selected from LiBF.sub.4 alone or in a mixture with other salts;3c) optionally, a plasticizer selected from dipolar aprotic solvents and polyethers with a low molecular weight and their relevant mixtures.

Abstract: Composite cathode comprising:(A) a powder of active cathode material;(B) an electronic conductor;(C) an electrolyte essentially constituted by a polymer composition comprising:(C.sub.1) a polymer deriving from the polymerisation of a vinyl ether and a divinyl ether;(C.sub.2) litium tetrafluoroborate alone or in a mixture with other lithium salts.The above-mentioned composite cathode can be employed in solid electrolytic cells.

Abstract: Electrolytic membrane for light rechargeable batteries essentially consisting of:1) polymer deriving from the photopolymerization of a mixture essentially consisting of a vinyl ether having the general formula (I) R--?--O--CH.sub.2 CH.sub.2 --!.sub.n --O--CH.dbd.CH.sub.2, and a divinyl ether having the general formula (II) CH.sub.2 .dbd.CH--?--O--CH.sub.2 --CH.sub.2 --!.sub.m O--CH.dbd.CH.sub.2, in a quantity of between 15 and 60% by weight;2) plasticizer in a quantity of between 35 and 75% by weight;3) Lithium salt in a quantity of between 5 and 20% by weight;4) photopolymerization initiator in such a quantity as to photopolymerize (I) and (II);5) zeolite in a quantity of between 3 and 30% by weight;the percentage sum of components (1) to (5) being equal to 100.