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Patent Searching and Data


Title:
CONTROL VALVE TYPE LEAD STORAGE BATTERY
Document Type and Number:
Japanese Patent JP2004247197
Kind Code:
A
Abstract:

To provide a control valve type lead storage battery with long life by restraining occurrence of a crack and a hole in an inter-cell connection body even at a trickle use for long period, and improving reliability of an inter-cell connection part, as well as to provide an inter-cell connection structure with excellent productivity not bringing force a defect like fall-off of the connection body in its manufacturing process.

Of a pair of electrode plate groups housed in adjacent cell chambers 7 of the control valve type lead storage battery, a positive electrode shelf 8 of one electrode plate group 1 and a negative electrode shelf 9 of the other electrode plate group 1' are made to oppose to each other with an interval 6, into which, a connection body 11 having a U-shaped connection part is fitted, and the connection body 11 is welded to the shelf with pressure by its spring characteristics.


Inventors:
YOSHIMINE TOSHIBUMI
FUJIMORI TOMOKI
NAKAJIMA TAKASHI
IMON ISAO
Application Number:
JP2003036438A
Publication Date:
September 02, 2004
Filing Date:
February 14, 2003
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
H01M10/12; H01M50/541; (IPC1-7): H01M2/28; H01M10/12
Attorney, Agent or Firm:
Fumio Iwahashi
Tomoyasu Sakaguchi
Hiroki Naito