US Patent 10355313 Functionalized silanes and electrolyte compositions and electrochemical devices containing them

Described are compounds of the structure R4-a—Si-(Sp-Y)a—Zb, wherein “a” is integer from 1 to 4; “b” is an integer from 0 to (3×a); “Z,” which is absent when “b “R” or formula (II), wherein each “R” is halogen, C1-6 linear or branched alkyl, alkenyl, or alkynyl or C1-6 linear or branched halo-alkyl, halo-alkenyl, or halo-alkynyl; each “Sp” C1-15 linear or branched alkylenyl or CMS linear or branched halo-alkylenyl; and each “Y” an organic polar group. Also described are electrolyte compositions containing one or more of these compounds.