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Lead-acid accumulator with coil structure and manufacturing method thereof

A lead-acid battery and a manufacturing method technology are applied in the directions of lead-acid battery, lead-acid battery construction, final product manufacturing, etc. Due to the complex manufacturing process and the poor deformation ability of active materials, the effects of avoiding micro-short circuit of the electrode plate, strong rapid charging and discharging ability, and increased contact area are achieved.

Inactive Publication Date: 2005-03-16
包头世纪千网电池技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are still problems in the plate material and winding process of the existing lead-acid battery with wound structure. Due to the low mechanical strength of lead, punched lead foil is used as the grid material of the wound structure battery, the material calendering process and the battery plate. The manufacturing process of winding is complicated, the cost is high, and it has not been widely used
The cylindrical small-density battery disclosed in patent 98202241.7 adopts expanded mesh grid, and the stress concentration generated in the manufacturing process of the grid material causes severe stress corrosion of the grid material in the electrolyte, and it is very easy to crack the plate, and the grid is resistant to The ability of the active material to deform during the charge-discharge cycle is poor, which can easily cause the separation of the active material from the grid
cause premature battery failure
At the same time, the process method of manufacturing lead-acid batteries with a wound structure is adopted by the expanded grid. Since the material of the expanded grid is easy to produce sharp-edged protrusions during the punching and stretching process, the positive and negative active materials are coated and connected with the separator. After being wound at intervals, the protrusion is likely to cause a short circuit of the battery, resulting in battery failure
[0003] At the same time, because the manufacturing method of this kind of lead-acid battery with winding structure is still at the level of the traditional battery manufacturing method, there is no targeted, simple and effective process for the specific structure and properties of this kind of lead-acid battery. production method

Method used

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  • Lead-acid accumulator with coil structure and manufacturing method thereof
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  • Lead-acid accumulator with coil structure and manufacturing method thereof

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Embodiment Construction

[0040] like Figure 1 to Figure 8Shown: a lead-acid battery with winding structure, including battery box cover 1, positive terminal 2, tab 3, mandrel 4, negative plate 5, separator 6, positive plate 7, outer circular fixture 8, battery box 9. Grid bottom support 10, negative terminal 11, exhaust valve 12, lead grid 13, electrolyte 14, the tab 3 is connected to the positive plate 7 and the negative plate 5, and the tab 3 is a metal sheet, It is woven in the lead mesh and connected with the lead mesh, and one side protrudes from the edge of the lead mesh for terminal welding. The positive plate 7, the separator 6, and the negative plate 5 are wound on the mandrel 4 in a hierarchical order to form the battery core 19 of the lead-acid storage battery with the winding structure. Hook, the other end is provided with the outer circular jig 8 that a plastic sheet of the hole that matches with this barb tooth hook is fixed; The positive and negative pole lug 3 that stretches out the ...

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Abstract

The invention relates to a lead acid battery with winding structure and its manufacturing method. A lug of pole is inwoven to and fixed to a lead meshwork, making electrical connection. Coating active material of positive and negative electrode on the lead meshwork makes a positive and negative electrode plate. Winding the positive, spacer plate and negative in sequence makes a battery core. The battery core is fixed by an excircle fixture, then is installed to a battery case perpendicularly with a lid being added for packaging. The invented battery possesses features of low internal resistance, high specific energy, strong capability of charging and discharging with large current, long service life and wide application area. Moreover the technique of method for manufacturing the battery is easy and efficiency.

Description

Technical field: [0001] The invention relates to a novel winding structure lead-acid storage battery and a manufacturing method thereof. Background technique: [0002] Lead-acid batteries are widely used in energy, electricity, transportation, communications, computers, military and other fields. There are still problems in the plate material and winding process of the existing lead-acid battery with wound structure. Due to the low mechanical strength of lead, punched lead foil is used as the grid material of the wound structure battery, the material calendering process and the battery plate. The manufacturing process of winding is complicated, the cost is high, and it has not been widely used. The cylindrical small-density battery disclosed in patent 98202241.7 adopts expanded mesh grid, and the stress concentration generated in the manufacturing process of the grid material causes severe stress corrosion of the grid material in the electrolyte, and it is very easy to crac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/12
CPCY02E60/126Y02E60/10Y02P70/50
Inventor 迟钝
Owner 包头世纪千网电池技术有限公司
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