Battery monomer, battery and electric equipment

The embodiment of the invention provides a battery monomer, a battery and electric equipment, and belongs to the technical field of batteries. The battery monomer comprises a shell, an electrode assembly and a pressure relief mechanism, the electrode assembly comprises a main body part and tabs, and the tabs are arranged at at least one end of the main body part in the first direction. The shell comprises a first wall part and a second wall part, the first wall part and the second wall part are oppositely arranged in the second direction, the first wall part is used for supporting the main body part, a channel gap is formed between the second wall part and the main body part and is configured to be communicated with spaces located at the two ends of the main body part in the shell in the first direction, and the second direction intersects with the first direction. The pressure relief mechanism is arranged on the first wall part, and the center of the pressure relief mechanism deviates from the center of the first wall part in the first direction. The discharge medium at the two ends of the main body part can quickly flow to the pressure relief mechanism, so that the time for the discharge medium to reach the pressure relief mechanism is shortened, the pressure relief timeliness of the single battery is improved, and the reliability of the single battery is improved.