Patent ID: 11936003
Assignee: PRIME PLANET ENERGY & SOLUTIONS, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A battery comprising:
a wound electrode assembly, wherein
the wound electrode assembly has a flat shape,
the wound electrode assembly includes a first separator, a positive electrode plate, a second separator, and a negative electrode plate,
the first separator, the positive electrode plate, the second separator, and the negative electrode plate are stacked in this order and then wound spirally,
in a cross section perpendicular to a winding axis of the wound electrode assembly,
the first separator has a first winding start edge inside an innermost circumference of the wound electrode assembly,
the second separator has a second winding start edge inside the innermost circumference of the wound electrode assembly,
the first winding start edge faces the second winding start edge, in a direction parallel to a straight line connecting two points located farthest apart from each other on an outline of the wound electrode assembly, with the winding axis interposed therebetween, and
the first winding start edge is located apart from the second winding start edge.