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Battery formed acid loop method of lead acid battery

A lead-acid battery and battery formation technology, which is applied in the direction of lead-acid battery, lead-acid battery construction, battery pack components, etc., can solve problems such as temperature rise, long formation time, and inability to meet the requirements of acid quantity

Active Publication Date: 2010-03-31
ZIBO TORCH ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional battery formation has the following disadvantages: (1) Due to the limited volume of the inner cavity of the battery tank, if a low density [(1.04~1.10) g / cm 3 ] Electrolyte, can not meet the requirements of the amount of acid in the process of formation
(2) If a higher density (1.200g / cm 3 Above) electrolyte, the formation effect is not as good as the tank type formation using low-density electrolyte
(3) The temperature of the battery rises during the formation process, and the battery needs to be placed in a cooling water tank to cool down. Since the battery tank is generally made of engineering plastic materials, the heat transfer effect is poor and the cooling effect is not good
(4) Due to the temperature rise, the formation current cannot be too large, and the formation time is longer
(5) Manually adjust the density of the electrolyte before the end of the formation, and the workload is large

Method used

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  • Battery formed acid loop method of lead acid battery
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Take D-400BS as an example

[0027] According to the above operation method, place a group of (24) batteries on the circuit, and inject the batteries with a density of (1.100±0.005) g / cm 3 (30°C) electrolyte, soak for 2 hours for battery formation, the density of sulfuric acid during the formation process is (1.050±0.005) g / cm 3 (15°C), 6 hours before the end of the formation, switch the high-level acid storage tank, adjust the density of the electrolyte, the sulfuric acid density in the high-level high-density acid tank is (1.280±0.005) g / cm 3 (30°C). The cycle acid change time is 6 hours. The liquid level height is 20mm, and the total forming time is 46 hours.

[0028] When the electrolyte in the battery flows into the low-level acid storage tank and the density of the electrolyte is low, turn on the function of adding concentrated acid and adjust the density to 1.280±0.005g / cm 3 (30°C).

[0029] The battery performance test was carried out on the above-mentioned...

Embodiment 2

[0033] Take D-700 as an example

[0034] According to the above operation method, place a group of (24) batteries on the circuit, and inject the batteries with a density of (1.100±0.005) g / cm 3 (30°C) electrolyte, soak for 2 hours for battery formation, the density of sulfuric acid during the formation process is (1.050±0.005) g / cm 3 (15°C), 8 hours before the end of the formation, switch the high-level acid storage tank, adjust the density of the electrolyte, the sulfuric acid density in the high-level high-density acid tank is (1.290±0.005) g / cm 3 (30°C). The circulating acid change time is 8 hours, and the liquid level is 22mm.

[0035]When the electrolyte in the battery flows into the low-level acid storage tank and the density of the electrolyte is low, the automatic density adjustment system will start the function of adding concentrated acid to adjust the density to 1.290±0.005g / cm 3 (30°C). The total integration time is 48 hours.

[0036] The battery performance t...

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Abstract

The invention discloses an acid circulation method during the formation of a lead acid storage battery. The battery formation process introduces battery assemblage mode and adopts a special battery connector to assemble the acid circulation system; the electrolyte used in the formation process is low in density. The acid circulation method solves the problems of acid content deficiency and temperature reduction of the electrolyte during the battery formation process through the external circulation of the electrolyte; meanwhile, the acid circulation method can expel the sediments inside the battery to the outside through the circulation of the electrolyte, thus playing cleaning function. Heat generated inside the battery during the formation process is expelled through the circulation of the electrolyte, thus cooling the battery. The density of the electrolyte can be adjusted automatically so as to maintain a constant density during the battery formation process. The liquid level of the electrolyte of the battery can be adjusted automatically so as to satisfy the requirements at the time of delivery from the factory. The time period of the battery formation process can be reduced to 1-3days.

Description

technical field [0001] The invention relates to a method for pouring an electrolyte in a lead-acid accumulator battery formation mode. Background technique [0002] There are two ways of formation of lead-acid battery plates: tank formation and battery formation. From the perspective of improving production efficiency and cleaning and environmental protection, the current development trend is to adopt the battery formation method. However, the traditional battery formation has the following disadvantages: (1) Due to the limited volume of the inner cavity of the battery tank, if a low density [(1.04~1.10) g / cm 3 ] Electrolyte, can not meet the requirement of the amount of acid in the chemical formation process. (2) If a higher density (1.200g / cm 3 Above) electrolyte, the chemical formation effect is not as good as the tank chemical formation using low-density electrolyte. (3) The battery temperature rises during the formation process, and the battery needs to be placed in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/12H01M2/40H01M50/77
CPCY02E60/126Y02E60/10Y02P70/50
Inventor 陈龙霞陈默丁广波王银娟
Owner ZIBO TORCH ENERGY
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