| 摘要 |
The purpose of the present invention is to provide a non-aqueous electrolyte secondary battery having excellent cycle characteristics. A non-aqueous electrolyte secondary battery (10) of the present invention is provided with a positive plate (11), a negative plate (12), a separator (13), and a non-aqueous electrolyte solution. A negative-electrode active material is a mixture of a graphite material and silicon or a silicon compound, and the separator (13) is a polyolefin microporous film, which contains polyethylene as an essential component, and which is formed of a laminated film having at least two layers, said separator containing inorganic particles at least in a surface layer on the side facing the negative plate (12). |
