Battery grids, method and apparatus

专利名称：Battery grids, method and apparatus发明人：John O. Wirtz申请号：US08/430224申请日：19950428公开号：US05611128A公开日：19970318

摘要：A continuous cast positive grid of lead having substantially improved corrosionresistance and decreased growth in a positive plate of a lead- acid battery and a

continuous cast negative grid of lead having substantially increased tensile strength for alead-acid battery. A web of lead is continuously cast with a series of succeeding gridblanks of uniform thickness which are cold worked to reduce the positive grid thicknessby at least 3:1 and the negative grid thickness in the range of about 1.5:1 to 2.8:1preferably by passing through the nip of each of a plurality of successive compressionrollers. Electro-chemically active paste is applied to the reduced webs, preferably flashdried, and individual pasted grids are cut from the reduced and pasted webs to providepositive plates and negative plates for a lead-acid battery. The reduced positive gridshave a microstructure with substantially smaller grains and a more uniform grain

structure and the reduced positive and negative grids have substantially increased tensilestrength after full age hardening compared to as cast continuous grids after full agehardening.

申请人：WIRTZ MANUFACTURING CO., INC.

代理机构：Barnes, Kisselle, Raisch, Choate, Whittemore & Hulbert

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