abstract |
PROBLEM TO BE SOLVED: To provide a battery having a good balance of overall performance in terms of durability performance, capacity, resistance, output characteristics, etc., in a non-aqueous electrolyte secondary battery. A non-aqueous electrolyte battery comprising a positive electrode and a negative electrode capable of occluding and releasing metal ions, and a non-aqueous electrolyte solution, the non-aqueous electrolyte solution together with an electrolyte and a non-aqueous solvent, Containing at least one compound selected from the group consisting of lithium fluorosulfonate, lithium bis (fluorosulfonyl) imide, lithium difluorophosphate, and The negative electrode has a negative electrode active material containing Si or Si metal oxide and graphite particles. [Selection figure] None |