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Fabrication method for long-service lifetime positive plate of lead-acid storage battery

A lead-acid battery and positive plate technology, applied in lead-acid battery electrodes and other directions, can solve the problems of short service life, softening and falling off of positive lead paste, etc., and achieve the effects of long service life, large initial capacity and uniform particle size

Active Publication Date: 2016-11-16
陕西凌云蓄电池有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for preparing the positive plate of a long-life lead-acid battery, which solves the problem that the existing lead-acid battery has a short service life due to the softening and falling off of the positive electrode paste

Method used

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  • Fabrication method for long-service lifetime positive plate of lead-acid storage battery
  • Fabrication method for long-service lifetime positive plate of lead-acid storage battery

Examples

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Embodiment 1

[0029] In this embodiment, at first the lead oxide content is weighed at 75%, and the tap density is at 2.5g / cm 3 100kg of lead powder for storage battery production, sodium perborate monohydrate (NaBO 3 ·H 2 (2) 0.1kg, battery special polyester staple fiber 0.08kg, average particle diameter is 1.0kg of superfine four-basic lead sulfate additive of 2 microns, adds and mixes 2min in the paste machine; Add 9kg of pure water and stir and oxidize 10min. During the stirring process, the density is 1.40g / cm 3 H 2 SO 4 The aqueous solution is 14kg, the adding process time is controlled within 10 minutes, and the temperature of the preorder mixture of the lead paste is controlled below 65°C during the adding process. Continue to stir until the temperature drops to 53°C, stop stirring, complete the paste, and make lead paste; then fill the lead paste on the grid to make an uncured positive plate; finally send the uncured positive plate into In the curing room, the curing is carrie...

Embodiment 2

[0033] In this embodiment, at first the lead oxide content is weighed at 80%, and the tap density is at 2.2g / cm 3 100kg of lead powder for storage battery production, sodium perborate tetrahydrate (NaBO 3 4H 2 (2) 0.4kg, 0.1kg of special polyester staple fiber for storage battery, 1.0kg of superfine four-basic lead sulfate additive with an average particle diameter of 4 microns, add in the paste machine and stir and mix for 1min; add 8kg of pure water and stir and oxidize for 15min. During the stirring process, the density is 1.40g / cm 3 H 2 SO 4 The aqueous solution is 16kg, the time of the addition process is controlled within 12 minutes, and the temperature of the addition process is controlled below 65°C. Continue to stir until the temperature drops to 50°C, stop stirring, complete the paste, and make lead paste; then fill the lead paste on the grid to make an uncured positive plate; finally send the uncured positive plate into In the curing room, the curing is carried...

Embodiment 3

[0038] In this embodiment, at first the lead oxide content is 85%, and the tap density is 2.7g / cm 3 100kg of lead powder for storage battery production, sodium perborate tetrahydrate (NaBO 3 4H 2 (2) 0.5kg, 0.1kg of special polyester staple fiber for storage battery, 1.0kg of superfine four-basic lead sulfate additive with an average particle diameter of 5 microns, add in the paste machine and stir and mix for 1min; add 7kg of pure water and stir and oxidize for 20min. During the stirring process, the density is 1.40g / cm 3 H 2 SO 4 The aqueous solution is 18kg, the time of the addition process is controlled within 15 minutes, and the temperature of the addition process is controlled below 65°C. Continue to stir until the temperature drops to 47°C, stop stirring, complete the paste mixing, and make lead paste; then fill the lead paste on the grid to make an uncured positive plate; finally send the uncured positive plate into In the curing room, the curing is carried out in...

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Abstract

The invention discloses a fabrication method for a long-service lifetime positive plate of a lead-acid storage battery. The fabrication method comprises the following steps of separately weighing and stirring lead powder for production of the storage battery, sodium perborate, polyester short fiber special for the storage battery and a superfine tetrabasic lead sulfate additive; adding pure water, performing stirring and oxidizing, and adding a sulfuric acid aqueous solution during the stirring and oxidizing process; continuously stirring and stopping stirring until a stirring temperature is lower than 47-53 DEG C to obtain lead paste; filling the lead paste on a grid to fabricate a non-cured positive plate; and introducing the non-cured positive plate in a curing chamber for curing to obtain the positive plate. The fabrication method for the long-service lifetime positive plate of the lead-acid storage battery is stable in fabrication process, the curing time of the plate is shortened, the fabricated positive plate lead paste is high in content of the tetrabasic lead sulfate, small in crystalline particle and uniform in granularity, and thus, the storage battery has the advantages of high charging formation efficiency, large initial capacity, long service lifetime and high storage battery consistency.

Description

technical field [0001] The invention belongs to the technical field of battery material preparation, and in particular relates to a preparation method of a long-life lead-acid battery positive plate. Background technique [0002] The battery is mainly composed of a battery tank, a positive plate, a negative plate, a separator and an electrolyte. During the use of the lead-acid battery, there is a problem that the cycle life of the battery is short due to the softening and falling off of the positive electrode paste. At present, the content of tetrabasic lead sulfate in the positive electrode paste is increased by adopting conventional high-temperature (above 72°C) curing, modified high-temperature curing, and adding ultra-fine tetrabasic lead sulfate additives in the lead paste, thereby preventing the positive electrode from The softening and peeling off of the lead plaster. The crystal size of tetrabasic lead sulfate in the positive plate prepared by the conventional high...

Claims

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Application Information

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IPC IPC(8): H01M4/20H01M4/21
CPCH01M4/20H01M4/21Y02E60/10
Inventor 孙言行张文欢杨广福
Owner 陕西凌云蓄电池有限公司
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