A non-aqueous electrolyte to be used in a Li-ion battery includes a lithium salt,
a cyclic carbonate, a linear carbonate and an alkyl fluorinated phosphate, of the
following general formula
##STR1##
wherein R1, R2 and R3, independently, are
selected from the group consisting of straight and branched alkyl groups having
1-5 carbon atoms, and at least one of said alkyl groups is fluorinated, with the
locations of said fluorination being at least -positioned away from the
phosphorous of said phosphate, such that said alkyl phosphate has a F/H ratio of
at least 0.25, and said electrolyte solution is non-flammable.
