| 摘要 |
A non-aqueous electrolyte battery that is capable of improving safety, particularly tolerance of the battery for overcharging, is furnished with a positive electrode including a positive electrode active material-layer ( 2 ) containing a plurality of positive electrode active materials and being formed on a surface of a positive electrode current collector ( 1 ), a negative electrode including a negative electrode active material layer ( 4 ), and a separator ( 3 ) interposed between the electrodes. The positive electrode active material-layer ( 2 ) is composed of two layers ( 2 a) and ( 2 b) having different positive electrode active materials, and of the two layers ( 2 a) and ( 2 b), the layer ( 2 b) that is an outer layer contains as its main active material a positive electrode active material having the highest thermal stability among the positive electrode active materials. The meltdown temperature of the separator ( 3 ) is 180° C. or higher.
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