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How to improve the high temperature float charge life of agm valve-regulated sealed battery

A technology of floating charge life and battery, applied in the direction of lead-acid battery, lead-acid battery construction, secondary battery, etc., can solve the problems of increasing the difficulty of reaching the standard, and achieve the effects of reducing gas emissions, inhibiting oxidation, and reducing void volume

Active Publication Date: 2022-01-14
FENGFAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the rapid development of urbanization in my country and the enhancement of economic strength, space resources are becoming increasingly tight, and power guarantee capabilities are becoming more and more perfect. The discharge probability and depth of batteries used in central areas are decreasing. Float charge is the main state. Due to the change of use conditions, in order to quickly detect the service life of the battery, the high temperature float charge method is used in the industry standards of the communication and electric power industries for detection. With the change of the use state of the battery pack, in recent years The life index has been revised to increase the requirements for the number of high-temperature float charge cycles, which greatly increases the difficulty of reaching the standard

Method used

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  • How to improve the high temperature float charge life of agm valve-regulated sealed battery
  • How to improve the high temperature float charge life of agm valve-regulated sealed battery

Examples

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example 1

[0013] Example 1: Select a liquid absorption capacity of 8.6g / g, a maximum pore size of 17.0μm, and a specific surface area of ​​1.6m 2 / g separators are grouped; the pole group is pretreated: SiO 2 The solution with a content of 0.25% is evenly sprayed on one surface of the separator, and the mass of the separator increases by 1.0% after spraying, and the assembly and welding are carried out according to the conventional process; the sulfuric acid content is 5.14g / Ah and the water content is After adding 8.54g / Ah of electrolyte, the formation charging is carried out according to the conventional production process.

example 2

[0014] Example 2: Select a liquid absorption capacity of 8.8g / g, a maximum pore size of 16.5μm, and a specific surface area of ​​1.8m 2 / g separators are grouped; the pole group is pretreated: SiO 2 The solution with a content of 0.35% is evenly sprayed on one surface of the separator, and the quality of the separator is increased by 0.5% after spraying, and the assembly and welding are carried out according to the conventional process; the sulfuric acid content is 5.18g / Ah and the water content is After adding 8.26g / Ah of electrolyte, the formation charging is carried out according to the conventional production process.

example 3

[0015] Example 3: Select a liquid absorption capacity of 8.7g / g, a maximum pore size of 17.5μm, and a specific surface area of ​​2.0m 2 / g separators are grouped; the pole group is pretreated: SiO 2 The solution with a content of 0.30% is evenly sprayed on one surface of the separator, and the mass of the separator increases by 0.8% after spraying, and the assembly and welding are carried out according to the conventional process; the sulfuric acid content is 5.16g / Ah and the water content is After adding 8.81g / Ah of electrolyte, the formation charging is carried out according to the conventional production process.

[0016] The following table is the comparison data of the cycle life of the 2V valve-regulated sealed lead-acid battery produced according to the above-mentioned embodiment and the 2V2V valve-regulated sealed lead-acid battery produced according to the existing technology (comparative example) under high temperature accelerated floating charge (taking 2V 500Ah bat...

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Abstract

A method for improving the high-temperature floating charge life of an AGM valve-controlled sealed battery, including the procedures of pole group matching, pole group welding, slotting and packaging, and electrolyte filling, and pole group is set between the pole group matching and pole group welding processes Group pretreatment process, the extremely group pretreatment process SiO 2 The solution with a content of 0.25%-0.35% is evenly sprayed on one surface of the separator, and the mass of the separator increases by 0.5-1.0% after spraying. Adopting the method of the present invention can ensure the amount of electrolyte used in the cycle of the battery, meet the requirements of no flowing liquid and no increase in internal resistance in the battery, and allow part of the hydrogen and oxygen generated by the battery reaction to recombine into water on the separator, reducing the The gas emission during the high-temperature cycle of the battery is reduced, and the high-temperature accelerated float charge life of the battery is increased by two to four times.

Description

technical field [0001] The invention relates to a storage battery manufacturing method, in particular to a method for improving the high-temperature float charge life of an AGM valve-controlled sealed storage battery, which belongs to the technical field of storage batteries. Background technique [0002] With the replacement of lead-acid batteries and the enhancement of environmental protection awareness, valve-regulated sealed lead-acid batteries are widely used in the fields of mobile communications and power backup power. Because the battery is designed with a lean liquid fully sealed structure, it effectively avoids the leakage of acid solution and the escape of acid mist during use, and greatly reduces the environmental pollution and equipment corrosion of the battery, so it is widely used and popular. However, with the rapid development of urbanization in my country and the enhancement of economic strength, space resources are becoming increasingly tight, and power gu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/14H01M50/403H01M50/449H01M10/12H01M10/42
CPCH01M10/14H01M10/121H01M10/4235Y02E60/10Y02P70/50
Inventor 赵从印史虎古利伟刘亚伟
Owner FENGFAN
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