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Method for manufacturing lead storage cell

A technology for lead-acid batteries and manufacturing methods, which is applied to lead-acid batteries, lead-acid battery construction, and final product manufacturing. It can solve problems such as inability to obtain sufficient joint strength, and achieve the effect of improving strength

Pending Publication Date: 2020-06-16
GS YUASA INT LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, if the spacers on which the ridges are formed on the joint surfaces are superimposed to join the edge portions on both sides, sufficient joint strength may not be obtained due to the arrangement of the ridges.

Method used

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  • Method for manufacturing lead storage cell
  • Method for manufacturing lead storage cell
  • Method for manufacturing lead storage cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0111] Hereinafter, although this invention is demonstrated concretely based on an Example and a comparative example, this invention is not limited to a following example.

[0112] 《Lead battery A1》

[0113] (1) Preparation of negative plate

[0114] Mix lead powder, water, dilute sulfuric acid, carbon black and organic anti-shrinkage agent to obtain negative electrode paste. A non-chemically converted negative electrode plate was obtained by filling the negative electrode paste into the mesh portion of a expanded grid made of a Pb—Ca—Sn-based alloy as a negative electrode current collector, aging, and drying. Sodium lignosulfonate is used as an organic antishrink agent. The amount of carbon black and the organic anti-shrinkage agent contained in 100 mass % of each negative electrode material was adjusted so that the addition amount was 0.2 mass %, and the negative electrode paste was prepared.

[0115] (2) Preparation of positive plate

[0116] Knead lead powder, water an...

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Abstract

A method for manufacturing a lead storage cell having an electrode plate group, in which a plurality of positive electrode plates and a plurality of negative electrode plates are laminated with a separator interposed therebetween, wherein the method includes processing the separator into a bag shape having a first region and a second region that face each other. Processing the separator into a bagshape includes forming a joining part that includes at least a part of the first region and at least a part of the second region. A plurality of first ribs are provided in the first region, and a plurality of second ribs are provided in the second region. Forming the joining part includes causing the first region and the second region to face each other so that at least one of the first ribs andat least one of the second ribs intersect in the joining part.

Description

technical field [0001] The present invention relates to a method for manufacturing a lead storage battery. Background technique [0002] Lead storage batteries are used in various applications other than automotive use and industrial use. A lead storage battery includes a negative electrode plate, a positive electrode plate, a separator interposed between the negative electrode plate and the positive electrode plate, and an electrolytic solution. The electrolyte usually utilizes an aqueous solution of sulfuric acid. [0003] Patent Document 1 discloses an example in which a negative electrode plate is accommodated in a bag-shaped polyethylene separator, and the bag-shaped separator has ridges on the side of the negative electrode plate. In this example, the ribs are formed inside the bag-shaped spacer. [0004] When the spacer is formed into a bag shape, the spacer is usually bent into a U-shape and both side edges are joined together. As a method of joining both edge po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/18H01M10/14H01M50/463H01M50/466
CPCY02E60/10H01M50/466H01M10/06Y02P70/50H01M50/463
Inventor 稻垣贤京真观和田秀俊
Owner GS YUASA INT LTD