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Lead-acid battery grid structure

A lead-acid battery, grid technology, applied in the direction of electrode carrier/current collector, etc., can solve the problems of adverse effect of battery consistency, deformation of lead-acid battery grid, softening and falling off of active material, etc., to avoid premature failure and improve the structure. Strength, the effect of increasing specific energy

Active Publication Date: 2018-02-02
CHAOWEI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In production and use, it is found that due to errors in the manufacturing process, the lead-acid battery grid is prone to deformation and fracture, which will adversely affect the consistency of the battery
In the process of use, corrosion is prone to occur, and with the progress of charging and discharging, the active material shrinks and expands repeatedly, causing grid creep, which causes the active material to soften and fall off. , current failure, and lead to premature failure of the battery

Method used

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  • Lead-acid battery grid structure
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  • Lead-acid battery grid structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Such as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Image 6 with Figure 7 As shown, the present invention includes a lead core net 1, and the lead core net 1 includes a frame 1.1, several vertical ribs, some horizontal ribs, several horizontal ribs 1.2, and several vertical ribs 1.3; frame 1.1 and horizontal and vertical reinforcement The outer surfaces of the ribs 1.2, 1.3 are provided with outer coatings 1.1.1, 1.2.1, 1.3.1. Preferably, the lead core mesh 1 is made of pure lead, lead-tin alloy, lead-calcium-tin-aluminum alloy or low-antimony lead alloy, and this embodiment is made of pure lead.

[0021] In this embodiment, the frame 1.1 is a rectangle with smooth transitions at four corners, and the left side of the upper side of the frame 1.1 is provided with tabs. The cross-sectional shapes of the other three sides of the frame are all regular hexagons, and the side lengths of the left and right sides of the cross-section of the upper side of ...

Embodiment 2

[0025] The difference between embodiment two and embodiment one is that the thickness of the outer covering layer 1.1.1, 1.2.1, 1.3.1 is greater than or equal to 0.5 mm, less than or equal to 2 mm, preferably 0.8 mm; the outer covering layer 1.1.1 , 1.2.1, 1.3.1 are plastic layers or conductive plastic layers, and the outer coating layers 1.1.1, 1.2.1, 1.3.1 of this embodiment are PP plastic layers, which are coated on the frame, transverse ribs, On the outer surface of the vertical rib, the surface of the outer cladding should be trimmed after the injection molding is completed.

Embodiment 3

[0027] The difference between the third embodiment and the second embodiment is that the outer cladding layers 1.1.1, 1.2.1, and 1.3.1 are aluminum oxide ceramic layers, and the outer cladding layers 1.1.1, 1.2.1, and 1.3.1 are made of The method of pressing is coated on the outer surfaces of the frame, the horizontal ribs and the vertical ribs.

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Abstract

The invention relates to a lead-acid storage battery and in particular relates to a grid structure of a lead-acid storage battery. The grid structure comprises a lead core net, wherein the lead core net comprises an edge frame, multiple transverse reinforcing ribs and multiple vertical reinforcing ribs; wrapping layers are arranged on the outer surfaces of the edge frame and the transverse and vertical reinforcing ribs; the wrapping layers refer to plastic layers, conductive plastic layers, ceramic layers or conductive ceramic layers; and the thickness of each wrapping layer is greater than or equal to 0.2mm and is smaller than or equal to 2mm. According to the grid structure disclosed by the invention, the wrapping layers are arranged on the outer surfaces of the edge frame and the transverse and vertical reinforcing ribs, so that the structural strength of the grid is improved, the possibility of deformation and breakage of the grid during use is reduced, and particularly phenomena, such as battery current collection, convergence and delivery failures, caused under the condition that the edge frame and the transverse and vertical reinforcing ribs are corroded in the process of using the grid can be avoided. Therefore, the grid structure of the lead-acid storage battery disclosed by the invention has the beneficial effects that the condition that the battery failure is caused due to the battery current collection, convergence and delivery failures which are caused by easiness in corrosion and breakage of the ribs difficultly occurs.

Description

technical field [0001] The invention relates to a lead-acid storage battery, in particular to a lead-acid storage battery grid structure. Background technique [0002] Lead-acid batteries are low in price, easy to manufacture, high in capacity and stable, and are widely used in many fields. In the production process of lead-acid batteries, the grid is the most basic production link and the most basic component. The grid is the skeleton of the battery, responsible for supporting and adhering the active material, collecting, converging, transporting, and evenly distributing the current on the plate. [0003] The current battery grid is mainly made of lead-calcium alloy and lead-calcium-tin-aluminum alloy, which is made by gravity pouring. In production and use, it is found that due to errors in the manufacturing process, the lead-acid battery grid is prone to deformation and fracture, which will adversely affect the consistency of the battery. In the process of use, corrosi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/73
CPCH01M4/73Y02E60/10
Inventor 叶剑王鹏伟马永泉刘孝伟
Owner CHAOWEI POWER CO LTD