Title:
LEAD-ACID BATTERY
Document Type and Number:
Japanese Patent JP3444168
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a lead-acid battery which uses expanded grid and has superior life characteristics.
SOLUTION: A grid bore part 1 and a crossing part 2 of the grid bone part 1 have the same thickness and are formed in the form of a wave as a whole as shown in the cross section. When this is used in an electrode plate as a current collector, the crossing part 2 is positioned in the vicinity of the center in the thickness direction of an electrode plate, and the grid bone part 1 projected from each crossing part 2 is arranged in the upper and lower direction of the crossing part 2.
Inventors:
Yasuyuki Yoshihara
Kazuyoshi Yonezu
Go Kashio
Fumiaki Seta
Kazuyoshi Yonezu
Go Kashio
Fumiaki Seta
Application Number:
JP33535897A
Publication Date:
September 08, 2003
Filing Date:
December 05, 1997
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
H01M4/14; B21D31/04; H01M4/73; H01M4/74; H01M4/78; H01M10/12; (IPC1-7): H01M10/12; H01M4/74
Domestic Patent References:
| JP57180077A |
Attorney, Agent or Firm:
Fumio Iwahashi (2 others)
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