| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lead storage battery having a positive electrode grid composed of a lead-calcium-tin based alloy, and a negative electrode grid composed of a lead-calcium based alloy or a lead-calcium-tin based alloy provided, on the surface of the lug, with a lead-tin-X based alloy, where X represents at least one kind of element in a group consisting of arsenic, silver, and selenium. <P>SOLUTION: Thinning of the lug of a negative electrode is suppressed by suppressing the roughening of a tin-rich β phase in a lead-tin based alloy on the surface at the lug of a negative electrode in a lead storage battery. <P>COPYRIGHT: (C)2012,JPO&INPIT |
