METHOD OF MANUFACTURING SEALED BATTERY

摘要

A method of manufacturing a sealed battery includes a step of preparing a strip-shaped aluminum plate material consisting of aluminum or an aluminum alloy; a step of preparing a strip-shaped dissimilar metal plate material consisting of dissimilar metal dissimilar from the aluminum or of a dissimilar metal alloy dissimilar from the aluminum alloy and having a smaller width than the aluminum plate material; a compression-bonding step for compression-bonding the dissimilar metal plate material on the aluminum plate material with the dissimilar metal plate material overlaid on the aluminum plate material so as to be aligned in the longitudinal direction of the aluminum plate material; a step of cutting the aluminum plate material together with the dissimilar metal plate material after the compression-bonding step to form an opening sealing plate integral with a dissimilar metal body consisting of the dissimilar metal or the dissimilar metal alloy; and a step of joining the opening sealing plate to an opening of a battery can with the dissimilar metal body facing outward.