Electrode roll of secondary battery

Purpose: to be uniformly in contact with the inner wall of the can at the time of charge and discharge of the battery, and provides a roll of a secondary battery electrode capable of absorbing the volumetric expansion of the charge and discharge. Configuration: the electrode is arranged on the outside of the present invention is a positive electrode 36 and the negative electrode in the electrode roll 22, a secondary battery disposed by winding the separator (32) between two electrodes (30), electrode roll 22 conductive tape 38 to which the conductive adhesive layer 42 is applied to the thin-film substrate 40 has been attached to propose a structure that is connected to the can (20). Effects: a distribution in the adhesive layer is a conductive powder and electric current to the thin-film substrate, possibly a can and a thin film substrate uniform contact, and it can absorb the volume expansion of the electrode roll by the thin film substrate.