Patent ID: 9114446
Filing Date: 2015-08-25
Classification: B21C,C22C,C22F,H01M,Y02E

Abstract:
1. A method of manufacturing a lead, or lead alloy, plate lattice for a lead-acid battery, comprising the steps of: continuously extruding the lead, or lead alloy, under temperatures lower by 10 to 100° C. than the melting point of the lead, or the lead alloy, flattening of an extrudate thus formed under a temperature lower by more than at least 267° C. than the melting point of the lead or the lead alloy; wherein said step of flattening of said extrudate provides a total draft rate less than 10%, and processing the extrudate so as to manufacture the plate lattice wherein an anode lead or lead alloy plate is manufactured, wherein cooling of the extrudate is controlled to provide a grain size of said plate of 50-300 μm.