| 摘要 |
A non-aqueous electrolyte secondary battery of the invention has a power generating element (21) with a single-cell layer (19) which comprises a positive electrode including a positive electrode active material layer (15) formed on a surface of a positive electrode collector (12), a negative electrode including a negative electrode active material layer (13) formed on a surface of a negative electrode collector (11) and a separator (1) disposed between the positive electrode the negative electrode and containing a non-aqueous electrolyte. A value R A (= Rzjis (2)/Rzjis(1)) for the ratio between the surface roughness (Rzjis(1)) of the surface of the negative electrode active material layer on the side in contact with the separator and the surface roughness (Rzjis(2)) of the surface of the separator on the side in contact with the negative electrode active material layer is 0.15 to 0.85. A high dynamic friction coefficient is obtained, and thus, the occurrence of lamination misalignment can be suppressed in a lamination step during production of the non-aqueous electrolyte secondary battery. |
