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Matching and sorting method for lead-acid storage batteries

A technology of lead-acid battery and storage battery, which is applied in the direction of lead-acid battery, lead-acid battery construction, secondary battery charging/discharging, etc., which can solve the problems of poor battery consistency and short service life, and achieve short cycle life and cycle resistance. Improvement of life and the effect of improving cycle life

Active Publication Date: 2014-02-05
CHAOWEI POWER CO LTD
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AI Technical Summary

Problems solved by technology

[0003] The invention provides a method for sorting lead-acid storage battery groups, aiming to solve the problems of poor consistency and short service life of the batteries in the storage battery group in the prior art

Method used

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Embodiment Construction

[0019] A method for selecting lead-acid storage battery subgroups, comprising the following steps in sequence:

[0020] A. Select the battery plate of the same type;

[0021] B. For the battery plates that meet step A, measure the weight of the pole group, and select the pole group of the same pole with a mass error within -0.3%wt ~ 0.3%wt;

[0022] C. For the battery electrode groups that meet the requirements of step B, complete the assembly of semi-finished products by cladding, welding, grooving, and sealing;

[0023] D. To meet the semi-finished storage battery in step C, test the density of the acid added in the storage battery, and select the semi-finished storage battery with the same acid density;

[0024] E. For the battery that meets step D, measure the amount of acid added to a single cell in the battery, and select a battery whose acid amount is within the error of -0.3%wt~0.3%wt;

[0025] F. Carry out battery charge and discharge formation for the battery that ...

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Abstract

The invention provides a matching and sorting method for lead-acid storage batteries and aims to solve the problems in the prior art that the consistency of storage batteries in a storage battery pack is poor and the service life is short. According to the matching and sorting method, sorted storage battery plates are assembled and sorted storage batteries with similar capacities and open-circuit voltage are matched to form one group by adopting a quantitative acid adding manner. The cycle life of the storage battery pack is obviously prolonged, the initial capacity of the storage battery pack is improved by 5%, and the charging receiving capability and the low-temperature performance of the storage battery pack are obviously enhanced. According to the matching and sorting method, the defects that the cycle life of the batteries is short and the consistency of the storage battery pack is poor are overcome; the batteries are suitable for being subjected to charge-discharge cycles under various environment temperatures so that the cycle life of the batteries is prolonged to be more than 500 times.

Description

technical field [0001] The invention relates to a method for selecting lead-acid accumulator distribution groups. Background technique [0002] At present, power type lead-acid battery packs are mainly used in the field of electric bicycles and electric road vehicles; if the battery packs are not matched, the initial capacity of the battery packs is small, and the consistency of the batteries in the battery packs is poor, resulting in poor performance and long battery cycle life. Most of them are about 300 times, and the lead-acid battery needs to be replaced after about one year of use, and the service life is short. Contents of the invention [0003] The invention provides a method for sorting lead-acid storage battery groups, aiming to solve the problems of poor consistency and short service life of storage batteries in storage battery groups in the prior art. [0004] In order to solve the above technical problems, the consistency of the battery capacity is ensured by...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/42H01M10/44
CPCH01M10/12Y02E60/10
Inventor 周明明杨绍坡张森赵文超
Owner CHAOWEI POWER CO LTD
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