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Storage battery charging formation acid extraction and acid control process

A battery and process technology, applied in the field of acid extraction control process, can solve problems affecting battery life, corrosion, etc.

Active Publication Date: 2014-12-17
CHAOWEI POWER CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, most of the charging in the battery production process is rich liquid charging, and at the end of charging, it is necessary to use a vacuum pump to extract the excess free electrolyte through special tools. The life of the battery is terminated prematurely due to lack of electrolyte, and if too little free electrolyte is drawn out, there is too much free electrolyte in the battery, and the electric vehicle may be corroded due to excessive electrolyte flow out of the battery during transportation or use. And the things around the battery, and the internal oxygen cycle cannot go smoothly due to too much electrolyte, which will affect the battery life

Method used

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Embodiment Construction

[0013] The specific contents of the battery charge-forming process for acid extraction and acid control are as follows:

[0014] 1. Acid pumping operation

[0015] 1. Charging before acid pumping: Shut down after charging, and charge at 14.8V / pc to 14.6V / pc with constant voltage after 1-3 hours of rest, pump acid within 2-5 hours during constant voltage charging (acid pumping time is controlled at 0.5h / road, 20 batteries for a circuit);

[0016] 2. Before the acid pumping operation, confirm that the vacuum negative pressure of the acid pumping machine is ≥-0.06Mpa.

[0017] 3. Start acid pumping after 1 hour of constant voltage charging (float charging) or when the current decreases to ≤0.3A, and continue constant voltage charging during acid pumping.

[0018] 4. When pumping acid, the acid pumping tube should be inserted into the battery and touch the perforated plate, and the acid pumping should be completed every 3-5 seconds. Shake the acid suction tube left and right ...

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Abstract

The invention discloses a storage battery charging formation acid extraction and acid control process. The process comprises the following steps: 1) charging before acid extraction, powering off after charging, and standing for 1-3 hours; 2) carrying out 14.8V / piece -14.6V / piece of constant voltage charging, extracting acid with an acid extraction machine within 2-5 hours in the constant voltage charging process; 3) after acid extraction, carrying out online charging validation, using 0.1C2A current to charge for 10-15 minutes; and troubleshooting the process one by one, absorbing overflowed acid in time if an acid overflowing phenomenon exists, and extracting 2-3ml of internal acid. In order to achieve the uniform acid content in batteries, the process optimally designs the charging voltage, the charging current and the concrete acid extraction time during free acid extraction at the last phase of storage battery charging formation. The amount of electrolyte in the internal parts of the batteries is effectively controlled, and both the consistency and the cycle life of the batteries are ensured.

Description

technical field [0001] The invention relates to an acid extraction control process when charging is completed in the production process of lead-acid batteries Background technique [0002] At present, most of the charging in the battery production process is rich liquid charging, and at the end of charging, it is necessary to use a vacuum pump to extract the excess free electrolyte through special tools. The life of the battery is terminated prematurely due to lack of electrolyte, and if too little free electrolyte is drawn out, there is too much free electrolyte in the battery, and the electric vehicle may be corroded due to excessive electrolyte flow out of the battery during transportation or use. And the things around the battery, and the internal oxygen cycle cannot be carried out smoothly due to too much electrolyte, which will affect the battery life. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a proc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/12H01M2/36
CPCY02E60/126Y02E60/10Y02P70/50
Inventor 朱志允赵文超刘超章春红
Owner CHAOWEI POWER CO LTD
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