Battery cell, battery, and electric device

Abstract

A battery cell includes a housing, an electrode assembly, and a current collector member, where the housing has an electrode lead-out member. The electrode assembly is accommodated in the housing and includes tabs. The current collector member is configured to electrically connect the tabs to the electrode lead-out member, where the current collector member is welded to the electrode lead-out member, the current collector member includes a conductive protective layer, and the conductive protective layer is disposed on a side of the current collector member facing away from the electrode lead-out member.

Dependencies are inferred from the claim text.