Battery

Abstract

A battery comprising:a housing (2); anda negative electrode current collecting plate (1) disposed inside the housing (2), characterized in that the negative electrode current collecting plate (1) is welded to the inside of the housing (2), and is further provided with a sealing member (3) in which a first rolling groove (21) and a second rolling groove (22) are arranged, which are in communication with each other and are successively recessed from the sealing end of the housing (2), the first rolling groove (21) is inclined toward the inside of the housing (2) and the second rolling groove (22) is inclined toward the outside of the housing (2), the first rolling groove (21) is welded to the negative electrode current collecting plate (1), and the sealing member (3) is disposed in the second rolling groove (22), and the sealing member covers the first rolling groove (21) and the negative electrode current collecting plate (1) a confluence line inside the housing (2), a first sealing ring (4) which is bushed on the outer periphery of the sealing element (3),and disposed between the sealing member (3) and the second rolling groove (22), a battery cell (5) disposed inside the housing (2) and positioned above the negative electrode current collecting plate (1),