Battery cells, batteries, and power consumption devices

Abstract

This application discloses a battery cell, a battery, and an electrical device. The battery cell comprises an electrode assembly and electrode terminals. The electrode assembly has a top and a bottom aligned along a first direction. The electrode terminals are connected to the top. The electrode assembly is formed by winding or lamination and includes N layers of separators, where N is a natural number greater than or equal to 3. Each layer of separator includes a first extension extending from the bottom along the first direction, and the N layers of first extensions are aligned along a second direction. Along the second direction, the first extensions are curved from the first layer to the (N-1)th layer, connecting adjacent first extensions. The separator includes a second extension extending from the top, which is connected to the electrode terminals. This application helps to improve the energy density of the battery cell and the tensile strength of the electrode terminals.

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