Winding structure based on lithium nickel cobalt aluminate positive electrode layer

The utility model discloses a winding structure based on a lithium nickel cobalt aluminate positive electrode layer, which comprises a rectangular shell and a winding battery cell, the winding batterycell is arranged in the rectangular shell, the winding battery cell comprises an effective potential area and an ineffective potential area, and the winding battery cell is formed by mutually attaching, bending and winding a positive electrode layer, a diaphragm and a negative electrode layer; wherein the effective potential area is a winding inner layer of the winding battery cell, the invalid potential area is a fitting outer layer of the winding battery cell and the inner wall of the rectangular shell, and an inactive layer for eliminating potential is arranged in the invalid potential area; the effective potential area comprises a straight section and a bent section, array grooves are formed in the two faces of the positive electrode layer, and single grooves of the array grooves arelocated in the bent sectio