BATTERY CELL, BATTERY MODULE, BATTERY PACK AND ELECTRICAL APPARATUS

This application provides a battery cell (100), a battery module (200), a battery pack and an electrical apparatus. The battery cell (100) includes a cell structure (10) and a temperature detection assembly (20). The temperature detection assembly (20) includes a holder (21) and a temperature detector (22). The cell structure (10) is fixed to the holder (21) which defines a receiving recess (2120), and the temperature detector (22) configured to collect temperature data of the cell structure (10) is at least partially received in the receiving recess (2120).