Lead-acid battery current collector, lead-acid battery, and manufacturing method of lead-acid battery current collector

A technology for lead-acid batteries and manufacturing methods, applied to lead-acid batteries, lead-acid battery construction, battery electrodes, etc., capable of solving problems such as damaged adhesion, shortened life of lead-acid batteries, deformation of collectors, etc.

Pending Publication Date: 2021-05-28
GS YUASA INT LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the volume of the inner bone expands, with the result that the current collector may deform
If the current collector is deformed, the adhesion between the current collector and the active material is impaired, so the active material falls off from the current collector, shortening the life of the lead-acid battery

Method used

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  • Lead-acid battery current collector, lead-acid battery, and manufacturing method of lead-acid battery current collector
  • Lead-acid battery current collector, lead-acid battery, and manufacturing method of lead-acid battery current collector
  • Lead-acid battery current collector, lead-acid battery, and manufacturing method of lead-acid battery current collector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0030] A-1. Composition:

[0031] (Configuration of lead storage battery 100)

[0032] figure 1 It is a perspective view which shows the external appearance structure of the lead acid battery 100 of this embodiment. figure 2 yes means figure 1 Explanatory drawing of the YZ cross-sectional structure of the lead acid battery 100 at the position of II-II. image 3 yes means figure 1 Explanatory drawing of the YZ cross-sectional structure of the lead acid battery 100 at the position of III-III. It should be stated that in figure 2 and image 3In the figure, for the sake of convenience, the configuration of the electrode plate group 20 is shown differently from the actual configuration in order to clearly show the configuration of the electrode plate group 20 described later. XYZ axes orthogonal to each other for determining directions are shown in each figure. In this specification, for the sake of convenience, the Z-axis positive direction is referred to as "upward dire...

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PUM

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Abstract

This lead-acid battery current collector (214) is provided with a frame-shape frame rib part (310) and a lattice part which is formed inside of the frame rib part (310) and has inner ribs. The outer peripheral surface of at least part of the inner ribs in the lattice part includes a first outer peripheral portion (431) where a fibrous material is exposed and a second outer peripheral portion (432) where a particulate material is exposed, and, in a prescribed cross-section approximately perpendicular to the direction of extension of the inner ribs, at least part of the inner ribs are configured such that the length of the first outer peripheral portion is longer than the length of the second outer peripheral portion.

Description

technical field [0001] The technique disclosed in this specification relates to the current collector for lead acid batteries. Background technique [0002] Lead storage batteries are widely used as secondary batteries. For example, lead storage batteries are mounted on vehicles such as automobiles, and are used as a power supply source for a starter when an engine is started, and as a power supply source for various electrical components such as lamps. [0003] A lead storage battery includes a positive electrode plate and a negative electrode plate. The positive electrode plate and the negative electrode plate each have a current collector and an active material supported by the current collector. In such a lead storage battery having an active material supported by a current collector, when the lead storage battery is used for a long period of time, the metallic lead constituting the inner bone of the current collector corrodes and turns into lead dioxide. As a result,...

Claims

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Application Information

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IPC IPC(8): H01M4/73H01M4/82
CPCH01M4/82H01M4/73Y02E60/10H01M2220/20H01M4/685H01M10/12
Inventor 枦晃法
Owner GS YUASA INT LTD
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