Battery and battery pack

Abstract

Battery characterized in that it comprises: a cell (1) comprising a cell body (101) and an electrode plate body (102) extending from one end of the cell body (101), wherein the electrode plate body (102) has a first weld area (1021) and a second weld area (1022), wherein the first weld area (1021) and the second weld area (1022) are spaced apart from each other, wherein the electrode plate body (102) comprises several electrode plate sheets, wherein the second weld area (1022) serves to weld the several electrode plate sheets together; an electrode column arrangement (2) which is welded to the first weld area (1021).