| 摘要 |
Disclosed is a non-aqueous electrolyte secondary battery including a positive electrode absorbing and releasing lithium ions, a negative electrode, a porous insulating layer interposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte with lithium ion conductivity. The negative electrode includes a current collector having a plurality of protrusions on a surface thereof, and particulate bodies being respectively supported on the protrusions, and including an alloy-type active material. The negative electrode has gaps between the particulate bodies adjacent to each other. The particulate bodies extend outwardly from surfaces of the protrusions of the current collector, and are each an aggregate of a plurality of clusters including the alloy-type active material.
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