| abstract |
A solvent useful for lithium batteries comprises a compound of Formula (I): (R 1 )(R 2 )(R 3 )Si—R 4 —O—C(O)—[(O—R 5 ) n —(O—C(O)] m —O—R 6 —X 1 . Each of R 1 and R 2 independently is alkyl; R 3 is alkyl, —X 2 —Si(R 7 )(R 8 )(R 9 ), or —CH 2 —O—C(O)—O—R 10 ; X 1 is H or —Si(R 11 )(R 12 )(R 13 ); each of R 4 and R 6 independently is alkylene; each R 5 independently is C 2 to C 6 alkylene; each of R 7 , R 8 , R 9 , and R 10 independently is alkyl; X 2 is O or alkylene; each of R 11 and R 12 independently is alkyl; R 13 is alkyl or —X 3 —Si(R 14 )(R 15 )(R 16 ); each of R 14 , R 15 , and R 16 independently is alkyl; X 3 is O or alkylene; m is 0 or 1, and n is 1-3; and when m is 0 and R 3 is alkyl, X 1 is —Si(R 11 )(R 12 )(R 13 ). Also described is a method for manufacturing a compound of Formula (II): (R 17 )(R 18 )(R 19 )Si—CH 2 —O—C(O)—O—R 20 where each R 17 , R 18 , R 19 , and R 20 is alkyl. |