Abstract: A battery cell includes: a shell, including a first wall; an electrode assembly, disposed inside the shell; and a terminal assembly, including an electrode terminal and an elastic member. The electrode terminal includes a fixed portion for electrical connection with the electrode assembly and a movable portion for electrical connection with a current collecting component. The fixed portion is fixedly disposed on the first wall. The movable portion is movably disposed on the first wall, and has a first position in contact with the fixed portion and a second position separated from the fixed portion. The elastic member is used for applying elastic force to the movable portion to maintain the movable portion in the first position. The movable portion is configured to move from the first position to the second position against the elastic force when internal pressure of the battery cell reaches a threshold.

Abstract: The present application provides a carbon fiber lithium supplement film, a preparation method thereof, a second battery and a power consumption apparatus including the same. The carbon fiber lithium supplement film may include a carbon fiber and a lithium supplement agent embedded in the carbon fiber, a diameter of the carbon fiber may be 450 nm-850 nm, and a mass percentage the lithium supplement agent in the carbon fiber lithium supplement film may be 40%-80.5%.