Patent ID: 7744772

Claim:
A composition for use in the manufacture of a battery electrolyte, comprising: (a) at least one polyorganosiloxane (POS) (A) comprising siloxyl units of formula (I) R 1 x R 2 y R 3 z SiO (4−x−y−z)/ 2 (I) in which formula the various symbols have the following meanings: x, y and z are integers with 1≦x+y+z≦3; the R 1 , R 2 and R 3 radicals are identical to or different from one another and represent an optionally substituted, linear or branched, C 1 -C 12 alkyl radical, an optionally substituted C 5 -C 10 cycloalkyl radical, an optionally substituted C 6 -C 18 aryl radical, an optionally substituted aralkyl radical or an —OR 4 radical where R 4 represents a hydrogen or a linear or branched alkyl radical having from 1 to 15 carbon atoms, and wherein the POS (A) comprises, per molecule: at least 2 siloxyl units of formula (I), one of the radicals of which comprises a functional group of epoxy type (Epx) and optionally a functional group of ether type (Eth); and at least one of the siloxyl units of formula (I) comprises at least one radical carrying a polyoxyalkylene (Poa) ether functional group; (b) at least one electrolyte salt; and (c) an effective amount of at least one cationic and/or radical photoinitiator, wherein said composition is polymerizable and/or crosslinkable by the cationic and/or radical route under irradiation and/or by (an) electron beam(s),