CPC H01M 10/0436 (2013.01) [H01M 4/02 (2013.01); H01M 50/534 (2021.01); H01M 50/536 (2021.01); H01M 50/538 (2021.01); H01M 2004/021 (2013.01)] | 14 Claims |
1. An electrode plate of a secondary battery, comprising:
a current collector, the current collector including an insulating layer and a first conducting layer disposed on at least one surface of the insulating layer;
an active material layer disposed on a main portion of the first conducting layer, wherein the first conducting layer further includes a protruding portion not coated with the active material layer; and
a second conducting layer, the second conducting layer including a first portion disposed on a surface of the protruding portion of the first conducting layer opposite to the insulating layer;
wherein the second conducting layer is made from a non-metallic material, and at least a portion of the non-metallic material is filled into cracks in the first conducting layer.
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