Method of making battery plates for lead acid storage batteries

A battery plate for lead acid storage batteries using a grid prepared by expanding a lead-calcium-tin (Pb-Ca-Sn) alloy sheet, is made by expanding a Pb-Ca-Sn alloy sheet having a tensile strength of 6.0 kg/mm2 or lower and an Sn content of 0.6-1.8% by weight to make a grid,filling this grid with an...

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Bibliographische Detailangaben
Hauptverfasser:	OKAMOTO, HIROSHI, YONEZU, KAZUYOSHI, YASUDA, TAKAHASHI, KATSUHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRICITY GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Beschreibung
Zusammenfassung:	A battery plate for lead acid storage batteries using a grid prepared by expanding a lead-calcium-tin (Pb-Ca-Sn) alloy sheet, is made by expanding a Pb-Ca-Sn alloy sheet having a tensile strength of 6.0 kg/mm2 or lower and an Sn content of 0.6-1.8% by weight to make a grid,filling this grid with an active material paste, and then aging the grid to increase the tensile strength of the expanded grid to 7.0 kg/mm2 or higher. The workability in expanding of the Pb-Ca-Sn alloy sheet can be improved and furthermore, concentration of stress strain on the nodes of the grid can be inhibited and thus, corrosion of the nodes can be inhibited. The aging can provide a battery pate having a high tensile strength and a lead acid storage battery having an excellent charge-discharge cycle life characteristics.