| abstract |
(57) Abstract: In a non-aqueous electrolyte secondary battery, an optimum ratio of an electrolyte injection amount to a total pore volume in a positive electrode, a negative electrode, and a separator is determined. In a non-aqueous electrolyte secondary battery including a positive electrode, a negative electrode, a separator and a non-aqueous electrolyte containing a lithium salt, the volume occupied by the non-aqueous electrolyte is reduced by the total pores of the positive electrode, the negative electrode and the separator. 120% or more 140 by volume % Or less. |