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Lead storage battery matching method

A technology for lead-acid batteries and storage batteries, which is applied in the field of lead-acid storage batteries, and can solve the problems of not being able to remove batteries well, and not being able to fully reflect the differences of different single batteries.

Active Publication Date: 2017-09-01
TIANNENG BATTERY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, using the charge and discharge data in the process of capacitance detection alone as the matching standard cannot fully reflect the differences between different single batteries, and at the same time it cannot well eliminate some batteries with subtle defects during manufacturing.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) Conduct a 2-hour volume inspection after formation.

[0028] 6-DZM-20 battery, the number of formed batteries is 108 (a total of 6 circuits, 18 for each circuit). When the average voltage of the control circuit is 10.2V / piece, the discharge time is 124.5 minutes, and the voltage collected at this time is used for capacity inspection and classification, and the discharge time difference between each circuit is within 30 seconds).

[0029] Table 1

[0030]

[0031] (2) 2-hour capacity inspection and classification.

[0032] The above-mentioned 108 single batteries are classified according to the setting value of the classification, and are divided into 7 grades. The classification results are shown in Table 2. The two batteries lower than 9.6V do not enter the subsequent matching group.

[0033] Table 2

[0034]

[0035]

[0036] (3) Internal resistance detection and large current discharge.

[0037] After the completion of the formation, let it stand for...

Embodiment 2

[0047] (1) Conduct a 2-hour volume inspection after formation.

[0048] 6-DZM-20 battery, the number of formed batteries is 108 (a total of 6 circuits, 18 for each circuit). When the average voltage of the control circuit is 10.2V / piece, the discharge time is 124.5 minutes, and the voltage collected at this time is used for capacity inspection and classification, and the discharge time difference between each circuit is within 30 seconds).

[0049] Table 6

[0050]

[0051]

[0052] (2) 2-hour capacity inspection and classification.

[0053] 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 are shown in Table 7, and the two batteries lower than 9.6V do not enter the subsequent grouping.

[0054] Table 7

[0055]

[0056] (3) Internal resistance detection and large current discharge.

[0057] After the completion of the formation, let it stand for 36...

Embodiment 3

[0069] (1) Perform a 2-hour volume inspection after formation.

[0070] 6-DZM-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. When the average voltage of the control circuit is 10.2V / piece, the discharge time is 125 minutes, and the voltage collected at this time is used for capacity inspection and classification, and the discharge time difference between each circuit is within 30 seconds).

[0071] Table 11

[0072]

[0073] (2) 2-hour capacity inspection and classification.

[0074] The above-mentioned 108 single batteries are classified according to the setting value of the classification, and are divided into 5 grades. The classification results are shown in Table 12, and the two batteries lower than 9.6V do not enter the subsequent grouping.

[0075] Table 12

[0076]

[0077] (3) Internal resistance detection and large current discharge.

[0078] After...

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Abstract

The invention discloses a lead storage battery matching method. The lead storage battery matching method comprises the following steps of (1) performing assembling and formation of storage batteries, and then performing grading for the first time according to the final voltage in a capacity detection stage; (2) after formation, performing constant-temperature standing on the storage batteries; (3) after the standing process is completed, detecting the internal resistance values and closed circuit voltage values in high-current discharging of the storage batteries, wherein the high-current discharging refers to discharging at the current of 7-15C<2>A for 3-5 seconds; (4) performing grading for the second time according to the closed circuit voltage values; and (5) matching the storage batteries in the same grade into one group, and meanwhile, ensuring that the difference between the maximum value and the minimum value of the internal resistance values of the storage batteries in the same group is not higher than 3% of the average value. According to the matching method disclosed in the invention, on the basis of capacity grading, secondary grading is performed based on the high-current discharging closed circuit voltage values, so that the fault batteries with defects and difficult to detect in the capacity detection stage can be removed, the consistency of the storage batteries in the same group is improved in the use and cycling process, and the service life is prolonged.

Description

technical field [0001] The invention relates to the technical field of lead storage battery production, in particular to a method for grouping lead storage batteries. Background technique [0002] Lead-acid 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 enhancement of environmental awareness and the seriousness of 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-acid battery pack. Due to the she...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/04H01M10/12
CPCH01M10/0404H01M10/12Y02E60/10Y02P70/50
Inventor 李桂发郭志刚崔海涛孔鹤鹏刘玉马铭泽邓成智
Owner TIANNENG BATTERY GROUP
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