Patent ID: 6190797
Filing Date: 2001-02-20
Classification: B22D,H01M,Y02E,Y02P,Y10T

Abstract:
A method of manufacturing an electrode plate assembly for a lead accumulator wherein:an electrode plate group is formed by alternately stacking a plurality of positive and negative electrode plates with interposition of separators and with respective electrode plate leads projecting from said positive and negative electrode plates aligned in electrode rows for positive and negative terminals; anda strap is formed respectively joining said electrode plate leads and pillar electrodes in said electrode rows, the method comprising the steps of:orienting the electrode plate leads directed upwards;attaching a welding jig having a recess corresponding to an external shape of said strap and comb teeth at a bottom face of the recess to each of said electrode lead rows such that said comb teeth are interposed between said electrode plate leads and define gaps between said comb teeth and said electrode plate leads;placing said pillar electrodes at a prescribed position in the recesses; andpouring molten lead into said recesses at a temperature and pressure which prevent the molten lead from flowing through said gaps and forming drips below said welding jigs.