BATTERY CELL, BATTERY AND ELECTRICAL DEVICE

An embodiment of the present application provides a battery cell, a battery, a power consumption device, and a manufacturing device and method for a battery cell, which belong to the technical field of batteries. The battery cell includes a housing, an electrode assembly, an end cover assembly and a current collecting member. The electrode assembly is accommodated in the housing, and the electrode assembly includes a tab. The end cover assembly includes an end cover, an electrode terminal and an insulating member, the end cover is used to cover at an opening of the housing, the electrode terminal is mounted to the end cover, and the insulating member is located on one side of the end cover facing the electrode assembly. The current collecting member is used to connect the electrode terminal and the tab. A first concave portion is formed on one side of the insulating member facing the electrode assembly, and the first concave portion is configured to accommodate at least a part of the tab and/or at least a part of the current collecting member, a first convex portion is formed on one side of the insulating member facing away from the electrode assembly, a second concave portion is formed on the side of the end cover facing the electrode assembly, and the second concave portion is used to accommodate the first convex portion. This structure can make more space for the electrode assembly and can effectively increase the capacity of the battery cell.