Abstract: A battery, including a packaging case and a cell assembly, where the packaging case includes a cover, and the cell assembly is provided in the packaging case. The battery further includes a first adapter which is connected to the cover. The cell assembly includes a first tab which protrudes outward from a side of the cell assembly. The first tab and the first adapter are electrically connected, and they are bent toward an outer surface of the cell assembly. In the foregoing battery, a connection structure of a tab has been changed to the outside of the cell assembly by using the first adapter, and the tab and the first adapter are directly bent to the outer surface of the cell assembly, simplifying connection and bending, and reducing operation difficulty.

Abstract: Embodiments of the present application provide a protective device for cell including a first conductive component and a second conductive component that are disposed oppositely and spaced apart. A switching unit disposed between the first conductive component and the second conductive component is configured to disconnect the first conductive component from the second conductive component based on a predetermined temperature of the cell. The purpose of the present application is to provide a protection device for cell to timely cut off the internal circuit of the cell when the internal temperature of the cell is high.

Abstract: Embodiments of the present application provide a protective device for cell including a first conductive component and a second conductive component that are disposed oppositely and spaced apart. A switching unit disposed between the first conductive component and the second conductive component is configured to disconnect the first conductive component from the second conductive component based on a predetermined temperature of the cell. The purpose of the present application is to provide a protection device for cell to timely cut off the internal circuit of the cell when the internal temperature of the cell is high.