Patent ID: 11862805
Assignee: NINGDE AMPEREX TECHNOLOGY LIMITED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A battery comprising:
a packaging shell; and
a battery cell formed by winding an electrode assembly, the battery cell being disposed in the packaging shell,
wherein the electrode assembly comprises a first electrode plate,
the first electrode plate comprises a first current collector area having a first active material layer disposed on opposite surfaces of the first current collector area, a first empty foil area and a second empty foil area, wherein both surfaces of the first empty foil area and the second empty foil area are not disposed with the first active material layer,
the battery cell has a first surface and a second surface opposite to each other, the first empty foil area is located on the first surface, and the second empty toil area is located on the second surface;
wherein, at least one of the first surface and the second surface of the battery cell is adhered to the packaging shell by a bonding member,
in a width direction of the battery cell, a width of the battery cell is W, a width of the first empty foil area is W1, a width of the second empty foil area is W2, and 0≤(W1+W2)/W≤40%.