Title:
鉛蓄電池
Document Type and Number:
Japanese Patent JP4239303
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To suppress crack generation at a node part of a grating mesh by reducing the width of a grating node part forming a mesh less than the width of the node part of an upper frame bar with the mesh and the node part of an under frame bar with the mesh in the grating of a lead-acid battery. SOLUTION: Expanding a lead alloy sheet in the width direction forms a grating 8. In the grating 8, the relationship of widths of each of node parts is set A>=C>B, where a width of the node part 9a of a grating bar (mesh) 5 with an upper frame bar 9 disposed with a grid ear part 9b is A, a width of a node part 6 of the grid bars 5 is B and a width of a node part 10a of the grid bar 5 with an under frame bar 10 is C. As the lead alloy sheet, a Pb-Sn-Ca alloy sheet containing 0.6-2.0 wt.% of Sn is used. A lead-acid battery using such an expanded metal grating suppresses breaking and cracks in the node part of the upper frame bar, the under frame bar with the grating bar and obtains excellent lifetime characteristics.
Inventors:
Youichi Kikuchi
Masato Ishiwata
Yoshihiro Murata
Masato Ishiwata
Yoshihiro Murata
Application Number:
JP17499899A
Publication Date:
March 18, 2009
Filing Date:
June 22, 1999
Export Citation:
Assignee:
Panasonic Corporation
International Classes:
B21D47/00; H01M4/74; C22C11/06; H01M4/66
Domestic Patent References:
| JP55082767U | ||||
| JP6333573A | ||||
| JP5343070A | ||||
| JP6267544A |
Attorney, Agent or Firm:
Fumio Iwahashi
Hiroki Naito
Daisuke Nagano
Hiroki Naito
Daisuke Nagano