BATTERY CASE FORMING METHOD OF CONTROL VALVE TYPE LEAD ACID STORAGE BATTERY

摘要

PROBLEM TO BE SOLVED: To prevent swelling of a battery case 4 at the forming of the battery case in a control valve type lead acid storage battery 1 that uses the battery case made of polypropylene resin. SOLUTION: A plurality of control valve type lead acid storage batteries 1 of nearly rectangular parallelopiped are installed so that one or both of the side faces 2a in the direction that a group of electrode plates are laminated contact each other. And each of the control valve type lead acid storage battery 1 is connected in series and the battery case is formed while it is being decompressed.