Battery cell, battery, and electric apparatus

Abstract

A battery cell includes an electrode assembly and an insulating member. The insulating member includes a first insulating portion and a second insulating portion connected to each other. The first insulating portion covers a first end face of the electrode assembly, and the second insulating portion covers an outer peripheral face of the electrode assembly. The first insulating portion has a first surface facing away from the first end face and a second surface facing the first end face. The first surface and/or the second surface is provided with a protrusion, thereby improving the gravimetric energy density of the battery.

Dependencies are inferred from the claim text.