Manufacturing method for electrode plate for battery

A manufacturing method and electrode plate technology, which are applied in the field of electrode plates, can solve the problems of inability to ensure the life of a metal mold for processing, complex structure and operation, and expensive operating costs, and achieve the effects of suppressing the generation of burrs and preventing chipping

Inactive Publication Date: 2008-04-02
PANASONIC CORP
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  • Abstract
  • Description
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Problems solved by technology

On the other hand, since this cutting method requires a very complicated structure and operation, there are problems

Method used

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  • Manufacturing method for electrode plate for battery
  • Manufacturing method for electrode plate for battery
  • Manufacturing method for electrode plate for battery

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Embodiment Construction

[0029] Hereinafter, a first embodiment of the present invention will be described in detail with reference to FIGS. 1 to 3 and FIGS. 8 to 9B. FIG. 1 is a schematic front view showing an electrode plate manufacturing apparatus that embodies a battery electrode plate manufacturing method according to a first embodiment of the present invention. This electrode plate manufacturing apparatus is an apparatus for obtaining an electrode plate 2 by intermittently feeding a strip-shaped electrode plate material 1 to a predetermined size and sequentially cutting it into a predetermined size. The electrode plate material 1 is, for example, a structure in which a paste-like active material is filled in a base material made of a sponge-like three-dimensional nickel metal porous body, or a paste-like active material is coated on a base material made of expanded metal. structure.

[0030] The strip-shaped electrode plate material 1 is wound on a take-out reel (not shown) or the like, and aft...

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Abstract

A method for manufacturing a battery electrode plate is provided with a step of intermittently transferring a strip-shaped electrode plate material (1) in a length direction by a prescribed quantity to be aligned and stopping the material; and a step of compacting the electrode plate material (1) by pressing a cutting section of the material from the top and the bottom, between an upper stripper (12) and an upper cutting metal die (11) sliding each other, and a lower stripper (14) and a lower cutting metal die (13) sliding each other, and cutting the compacted section by sliding cutting blade sections (11a, 13a) of the upper and lower cutting metal dies (11, 13) each other. Thus, the electrode plate material is cut while suppressing generation of a large burr, which causes short-circuit failure between the electrode plates, without deteriorating productivity nor increasing cost, and the battery electrode plate is obtained.

Description

technical field [0001] The present invention relates to a method of manufacturing an electrode plate for a battery in which an active material is filled or coated on a base material having a three-dimensional skeleton such as a three-dimensional metal porous body or expanded metal. A method of cutting a strip-shaped electrode plate material into a predetermined size. Background technique [0002] In recent years, the portability and wirelessization of electronic equipment such as AV equipment, personal computers, and portable communication equipment have developed rapidly. As the driving power supply of these electronic equipment, nickel-cadmium batteries are used because of their high reliability and easy maintenance. Or nickel metal hydride batteries, lithium secondary batteries, etc. As the positive and negative electrodes used in these batteries, a strip-shaped electrode plate material obtained by filling or coating an active material into a base material having a three...

Claims

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Application Information

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IPC IPC(8): H01M4/04B21D28/16
CPCY02E60/12Y02E60/10
Inventor 寺元数孝
Owner PANASONIC CORP
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