Apple Inc.
Current collector surface treatment

Abstract:

Energy storage devices, battery cells, and batteries of the present technology may include a first current collector, and may include a second current collector. At least one of the first current collector and the second current collector may be a metal current collector. The battery cells may include a seal between an external region of the first current collector and an external region of the second current collector. The seal may be coupled with a first portion of a first surface of the first current collector, and may be coupled with a first portion of a first surface of the second current collector. The battery cells may also include a coupling material positioned between the seal and the first portion of the first surface of the first current collector. The coupling material may also be positioned between the seal and the first portion of the first surface of the second current collector.