Title:
鉛蓄電池及びその製造法
Document Type and Number:
Japanese Patent JP4062817
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a lead-acid battery having an improvement in productivity and preventing a reduction in a life property by utilizing an expanded grid manufactured by a rotary type. SOLUTION: A plurality of slits being parallel each other are intermittently formed in such a manner to take a zigzag form along a direction longitudinally of a lead sheet. Additionally, filaments 5 shaped by the adjacent slits being parallel each other are subject to a plastic deformation so as to project convexly as well as alternately in both the front and back direction from a lead alloy sheet surface. Then, the lead alloy sheet is widthwise spread and expanded to form a mesh portion. In this method for manufacturing a lead-acid battery utilizing the mesh portion as a grid body 8, a grid skeleton takes a width dimension 10 (A) with respect to a width dimension 9 (B) of nodes 6, as 1.0A<=B<=3.0A.
Inventors:
Masato Ishiwata
High Matsu Jie
Yoshihiro Murata
High Matsu Jie
Yoshihiro Murata
Application Number:
JP15907299A
Publication Date:
March 19, 2008
Filing Date:
June 07, 1999
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
B21D31/04; H01M4/74; H01M4/68
Domestic Patent References:
| JP10112309A | ||||
| JP5343070A | ||||
| JP6267544A |
Attorney, Agent or Firm:
Fumio Iwahashi
Hiroki Naito
Daisuke Nagano
Hiroki Naito
Daisuke Nagano