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Paste type plate manufacturing method and alkaline accumulator using same

A manufacturing method and storage battery technology, applied to alkaline storage batteries, alkaline storage battery electrodes, etc., can solve the problems of decreased storage capacity, increased internal impedance of storage batteries, and shortened tool life

Active Publication Date: 2006-09-06
THE FURUKAWA BATTERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in the punching method described in the above-mentioned publication, the active material layer filled with the active material of the original plate is directly cut, so there is the following problem: the tool life is shortened Short, requires frequent tip grinding or tip replacement, troublesome maintenance
[0009] The method described in the above publication cannot obtain sufficient bonding strength because the end of the pole plate is covered with hot-melt resin in a U-shape
In addition, even if the resin is formed thinly, a gap is generated between the electrode plate and the separator due to the thickness of the resin
[0010] There is a gap between the electrode plate and the separator, which reduces the adhesion between the two, causing the internal impedance of the battery to increase and the battery capacity to decrease

Method used

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  • Paste type plate manufacturing method and alkaline accumulator using same
  • Paste type plate manufacturing method and alkaline accumulator using same
  • Paste type plate manufacturing method and alkaline accumulator using same

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Embodiment Construction

[0027] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0028] The feature of the present invention is that the part with active matter (active matter) in the cutting part is cut off by a cutting tool (scissors tool), and the part without active matter is punched out by a stamping tool, thereby prolonging the life of the tool and preventing warping of the pole plate section Curved edges and bumps.

[0029] figure 1 A cutting machine (shearing machine) 1 for carrying out the manufacturing method of the present invention is shown. Among them, 11 is a driving device, 12 is an upper cutting tool, 13 is a lower cutting tool, 14 is a pedestal for installing the lower cutting tool 13, 15 is a control device for changing the speed of the driving roller, 16 is a driving roller, and 17 is a conveyor. roll. The paste type electrode plate of the present invention can be applied to either a positive electrode plate or ...

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Abstract

The present invention relates to a method for manufacturing an electrode plate for an alkaline storage battery, which has the following steps: preparing an electrode original plate including a first region where an active material layer is formed on a porous metal substrate and a second region where the metal substrate is exposed. Step: Use a shearing tool for the first area and a punching tool for the second area to cut the original plate of the electrode plate to obtain an electrode plate of a prescribed shape.

Description

technical field [0001] The present invention relates to a method for producing a paste-type electrode plate in which a porous metal substrate is filled and coated with an active material, and an alkaline storage battery using the same. Background technique [0002] In recent years, with the rapid development of portable and cordless devices, the batteries for these devices are also increasingly required to be small and lightweight secondary batteries with high energy density. Among them, high-capacity and economical secondary batteries are also required, and alkaline storage batteries represented by nickel-metal hydride storage batteries and nickel-gallium storage batteries are highly desired to reduce the cost and improve reliability in the market. [0003] Alkaline storage batteries such as nickel-gallium storage batteries are manufactured by stacking a plurality of positive and negative plates alternately via separators and placing them in a cell. Gallium, which can be f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/26H01M10/24
CPCY02E60/124Y02E60/10
Inventor 阿部勋叶坂浩一
Owner THE FURUKAWA BATTERY CO LTD
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