Patent ID: 11862801
Assignee: APPLE INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A battery cell comprising:
a first current collector comprising a polymer layer defining a plurality of apertures;
a first metal layer at least partially disposed on a first surface of the polymer layer, the first metal layer extending into each of the plurality of apertures, wherein an edge region of the first current collector is maintained free of the first metal layer on the first surface of the first current collector, wherein the first metal layer is characterized by a first metal surface in direct contact with the polymer layer, and a second metal surface opposite the first surface;
a second metal layer disposed on the first metal layer and extending into each of the plurality of apertures; and
a third metal layer disposed across a second surface of the polymer layer and in electrical contact with the first metal layer.