The present application provides a battery and an electronic product. The battery includes a housing, a cover assembly and a core body, where the cover assembly is disposed on the housing; the cover assembly includes a conductive part and a top cover, and ...

The present application provides a jelly roll and a punch cell, and relates to the field of lithium battery technologies. The jelly roll includes a negative electrode plate, along a winding direction, an inner surface of a second bending region of the nega...