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A method for charging and grouping lead-acid batteries
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A lead-acid battery, storage battery technology, applied in the direction of lead-acid battery, lead-acid battery construction, secondary battery charging/discharging, etc. The performance is fast and stable, the production cycle is shortened, and the production space is saved
Active Publication Date: 2017-05-10
ZHEJIANG TIANNENG POWER ENERGY
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Problems solved by technology
If the standing time is short, the open circuit voltage of the battery is high and unstable, and each lead-acid battery changes greatly over time, resulting in inaccurate matching and lower product quality
[0007] However, in the battery manufacturing process, the standing time of internal formation and assembly is long, which not only occupies a large production space and affects the return of funds, but also assembly line production increases the handling process, batches of batteries are easily confused, and the quality of finished products is reduced.
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Embodiment 1
[0032] The lead-acid battery charging and grouping method of the present embodiment includes the following steps:
[0033] (1) charging the assembled internalized storage battery, the steps include:
[0034] a. First charge the battery with constant current for 2h, and the current is 0.05CA;
[0035] b. Then charge with 0.15CA constant current for 55h;
[0036] c. After 4h of constant current discharge, the current size is 0.2CA;
[0037] d. Charge with constant current for 15h, and the current is 0.15CA;
[0038] e. The final constant current charging is 12h, and the current is 0.1CA.
[0039] (2) Charge the battery with a discharge current of 0.25CA and a discharge time of 5min.
[0040] (3) After the discharge is completed, the battery should be matched immediately.
[0041] The lead-acid batteries that complete the above-mentioned steps (1) are divided into three groups to be matched respectively: 1. Continue to select 6 lead-acid batteries to form a group according t...
Embodiment 2
[0050] In this embodiment, except that the internalization method is different from that of Embodiment 1, the rest of the charging matching method is the same as that of Embodiment 1.
[0051] The internalization step of this embodiment includes:
[0052] a. First charge the lead-acid battery with constant current for 1h, and the current is 0.05CA;
[0053] b. Then charge 6C of electricity with a gap pulse current with a size of 0.20CA, a pulse width of 8s and a gap pulse width of 2s;
[0054] c. After 2h of constant current discharge, the current size is 7A;
[0055] d. Then charge 3C of electricity with positive and negative pulse currents with a positive current of 0.20C and a pulse width of 8s, a negative current of 0.5A and a pulse width of 2s;
[0056] e. The final constant current charge is 5h, and the current is 0.10CA.
[0057] Among them, the charging time of step b is about 30.5h, and the charging time of step D is about 15.3h.
[0058] The total charging and matc...
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Abstract
The invention discloses a charging and matching method for a lead-acid storage battery. The method comprises the following steps: (1) carrying out internal formation on a storage battery which is assembled; (2) discharging at least 0.01 C of the charged storage battery in 10 minute; and (3) immediately matching the storage battery after finishing discharging. Less electric quantity is rapidly discharged after charging of the storage battery is finished, the battery performance of the storage battery is rapidly stabilized without stewing, the grouping is immediately carried out, and the production cycle of the storage battery is greatly shortened, the production efficiency is improved, not only can the production space be saved, but also the speed of fund return is quickened, and the charging and matching method for the lead-acid storage battery is applicable to production-line large-scale production.
Description
technical field [0001] The invention relates to the manufacturing technology of lead-acid batteries, in particular to a method for charging and matching lead-acid batteries. Background technique [0002] Lead-acid batteries have a development history of more than 150 years. They occupy the market steadily with the advantages of mature production technology, long service life and recyclability. Professional battery production equipment and technology fundamentally guarantee the quality of batteries. [0003] With the development of the electronics industry, when lead-acid batteries are to be used in combination, lead-acid batteries of the same manufacturer, same batch, and model are required. There is a certain discreteness in the performance. When matching, it is hoped to combine batteries with similar performance, that is, the batteries in the battery pack have high consistency, so that the average discharge capacity of the combined battery pack reaches the minimum average...
Claims
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