Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
May 29, 2007
Patent Application Number
10494091
Date Filed
November 5, 2002
Patent Primary Examiner
Patent abstract
A grid is obtained by punching or expanding a sheet comprising a pure lead (Pb: 99.99 mass % or more) plate having a lead-tin alloy layer formed at least on one side of the pure lead plate. By using it as a positive electrode of a lead-acid battery, the problem that a pure lead grid shows bad charge acceptance characteristics after deep discharge can be solved, maintaining the excellent trickle life performance which a pure lead grid shows originally.
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