Patent ID: 7967874

Claim:
A method of producing a non-aqueous electrolyte secondary battery having a coating for a negative electrode active material, said non-aqueous electrolyte secondary battery comprising: a positive electrode including a positive electrode active material capable of absorbing and desorbing lithium, a negative electrode including the negative electrode active material capable of absorbing and desorbing lithium, a separator interposed between said positive electrode and said negative electrode, and a non-aqueous electrolyte, wherein the method comprises: a step (A) of adding, to said non-aqueous electrolyte, a compound represented by the general formula (1): where each of R 1 , R 2 , R 3 , R 4 , R 5 , and R 6 independently represents a hydrogen atom or an alkyl group having 1 to 5 carbon atoms, and at least one of R 1 , R 2 , R 3 , R 4 , R 5 , and R 6 may include an atom having a lone pair, and an organic halide represented by the general formula (2): X(CH 2 ) n CH 3 , where n is an integer from 1 to 5, and X is Cl, Br, or I; a step (B) of assembling a non-aqueous electrolyte secondary battery precursor by using said positive electrode, said negative electrode, said separator, and said non-aqueous electrolyte; and a step (C) of charging and discharging the battery precursor assembled by the step (B) to polymerize said compound represented by said general formula (1) in the presence of said organic halide represented by the general formula (2) to form said coating for said negative electrode active material and to obtain said non-aqueous electrolyte secondary battery.