CPC H01M 4/364 (2013.01) [H01M 4/131 (2013.01); H01M 4/66 (2013.01); H01M 2004/028 (2013.01)] | 10 Claims |
1. A positive electrode for use in a secondary battery, the positive electrode being to be wound in the secondary battery and comprising:
a positive electrode current collector;
a first intermediate layer disposed on a side that is to be an inner peripheral side when wound, among both sides of the positive electrode current collector;
a second intermediate layer disposed on another side that is to be an outer peripheral side when wound;
a positive electrode mixture layer disposed on the first intermediate layer, and another positive electrode mixture layer disposed on the second intermediate layer;
wherein the first intermediate layer and the second intermediate layer each include insulating particles and a conductive agent,
and a thickness of the first intermediate layer is smaller than a thickness of the second intermediate layer.
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