Battery monomer, battery and electric equipment

The utility model discloses a battery monomer, a battery and electric equipment. The battery cell (10) comprises: an end cover assembly (20) comprising a cover plate (21) and a second separator (22) disposed on the cover plate (21); an electrode assembly (30) including a main body portion (31); the end cover assembly (20) comprises a main body part (31) and a second isolation part (22), the first isolation part (40) is located between the end cover assembly (20) and the main body part (31) and is configured to limit the main body part (31), and the second isolation part (22) is configured to limit the first isolation part (40). 一种电池单体、电池及用电设备。电池单体(10)包括：端盖组件(20)，包括盖板(21)和设置在所述盖板(21)上的第二隔离件(22)；电极组件(30)，包括主体部(31)；和第一隔离件(40)，位于所述端盖组件(20)与所述主体部(31)之间，被配置为对所述主体部(31)进行限位，其中，所述第二隔离件(22)被配置为对所述第一隔离件(40)进行限位。