Lead storage battery matching method

A lead-acid battery, the same technology, applied in the field of lead-acid battery grouping, can solve the problems of complex polarization impedance and inability to fully reflect the state of the battery, and achieve the effects of prolonging the service life, shortening the standing time, and improving the consistency

Active Publication Date: 2019-08-02
TIANNENG BATTERY GROUP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The polarization impedance is more complex, affected by the distance between positive and negative plates (electron transmission distance), electrolyte saturation, and concentration polarization of the electrolyte, the difference is not obvious when the same batch of batteries is fully charged, but with As the discharge proceeds, the difference in polarization impedance will increase with the increase of the discharge depth, that is to say, the internal resistance of the battery at full charge cannot fully reflect the state of the battery, while the internal resistance of the empty charge can better reflect the real state

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) Perform a 2-hour rate discharge electrical inspection after formation.

[0025] 6-DZF-20 battery, the number of formed batteries is 108 (a total of 6 circuits, 18 for each circuit), the formation process adopts a conventional three-day process, and the total formed power is 210Ah. In the last stage of chemical formation, charged acid is used, charged with 0.3A (0.015C ampere) for 3 hours, then acid is pumped, free acid is pumped out, and then a safety valve is installed after standing for 1 hour, and then 2 hours of rate discharge For capacitance detection, discharge with 10A current (0.5C ampere) for 125 minutes, and the capacitance detection voltage is shown in Table 1.

[0026] Table 1

[0027]

[0028] (2) 2-hour capacity inspection and classification.

[0029] The above-mentioned 108 single batteries are classified according to the setting value of the classification, and they are divided into 7 grades. The classification results are shown in Table 2.

[...

Embodiment 2

[0044] (1) Perform a 2-hour rate discharge electrical inspection after formation.

[0045] 6-DZF-20 battery, the number of formed batteries is 108 (a total of 6 circuits, 18 for each circuit), the formation process adopts a conventional three-day process, and the total formed power is 210Ah. In the final stage of chemical formation, charged acid is used to charge with 0.2A (0.01C ampere) for 3 hours and then the acid is pumped to remove the free acid, and then the safety valve is installed after standing for 0.5 hours, and then the rate is discharged for 2 hours. For capacitance detection, discharge with 10A current for 130 minutes, and the capacitance detection voltage is shown in Table 5.

[0046] table 5

[0047]

[0048]

[0049] (2) 2-hour capacity inspection and classification.

[0050] The above-mentioned 108 single batteries are classified according to the setting value of the classification, and they are divided into 5 grades. The classification results are sh...

Embodiment 3

[0064] (1) Perform a 2-hour rate discharge electrical inspection after formation.

[0065] 6-DZF-12 battery, the number of formed batteries is 108 (a total of 6 circuits, 18 for each circuit), the formation process adopts a conventional three-day process, and the total formed power is 130Ah. In the final stage of chemical formation, charged acid is used to charge for 3 hours with a current of 0.36A (0.03C ampere), and then the acid is pumped to remove the free acid, and then the safety valve is installed after standing for 1.5 hours, and then discharged at a rate of 2 hours. For capacitance detection, discharge with 6A current for 127 minutes, and the capacitance detection voltage is shown in Table 9.

[0066] Table 9

[0067]

[0068]

[0069] (2) 2-hour capacity inspection and classification.

[0070] The above-mentioned 108 single batteries are classified according to the setting value of the classification, and are divided into 10 grades. The classification results...

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Abstract

The invention discloses a lead storage battery matching method. The lead storage battery matching method comprises steps that (1), Lead battery formation is performed, after completion of the formation, capacitor check discharge is performed, first grading is performed according to a termination voltage value of capacitor check discharge; (2), after capacitor check discharge, an internal resistance value of the lead storage battery is detected; (3), the lead storage battery is supplemented with power; (4), the lead storage battery with abnormal internal resistance is eliminated, and second grading is performed according to the internal resistance value; and (5), lead storage batteries that are divided into the same grade are grouped together. The method is advantaged in that on the basis of capacity grading, secondary grading is performed on the basis of the internal resistance after storage battery discharge, batteries which are defective but difficult for defect discovery in the capacitance check voltage process can be effectively eliminated, accurate matching is achieved, consistency of a single battery in a lead battery pack in the use cycle process is improved, and a purpose of extending the service life of lead battery packs is achieved.

Description

technical field [0001] The invention relates to the technical field of lead storage batteries, in particular to a grouping method for lead storage batteries. Background technique [0002] Lead storage battery is a widely used chemical power source. This product has the advantages of good reversibility, stable voltage characteristics, long service life, wide application range, abundant raw materials, renewable use, and low cost. In recent years, with the increasing awareness of environmental protection and the increasingly serious energy problems, lead-acid batteries play an extremely important role as a power source in electric vehicle systems. [0003] A single battery is composed of multiple single batteries, and its driving capacity is limited. Therefore, in practical applications, in order to provide sufficient driving force for electric mopeds, it is necessary to combine multiple single batteries to form a power with high driving capacity. Lead battery pack. Due to th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/44H01M10/04B07C5/344
CPCB07C5/344H01M10/0404H01M10/441H01M10/446Y02E60/10Y02P70/50
Inventor 李桂发刘玉邓成智李亚郭志刚毛书彦
Owner TIANNENG BATTERY GROUP
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