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Acid pumping method for small lead-acid batteries

A lead-acid battery, small-scale technology, applied in the direction of battery components, circuits, electrical components, etc., can solve the problems of shortening battery life, poor acid pumping effect, affecting battery capacity, etc., to improve capacity and life, pumping High acid consistency, environmental protection effect

Inactive Publication Date: 2011-12-21
NANJING SHUANGDENG SCI TECH DEV RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The small lead-acid batteries used in low-power electric tools have small capacity, small volume, and small liquid injection holes. With the existing acid pumping method, it is difficult to extend the straw through the liquid injection hole to the inside of the battery, and the acid pumping effect is not good. The excess electrolyte that cannot be extracted will affect the capacity of the battery, seriously shortening the service life of the battery, and the existing method has low work efficiency

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Place 80 12V8Ah small lead-acid batteries to be pumped in a balanced manner on a rotating frame with a rotating shaft, and fix them with pressure plates and screws so that the liquid injection port of each battery faces away from the direction of the rotating shaft; the start-up is aligned with the rotating shaft The connected motor drives the battery on the rotating frame to rotate at the same time. The motor speed is set to 200 rpm by the controller, and the rotation time is 0.5 minutes. Under the action of centrifugal force, the excess acid inside the battery is thrown out. The rotating frame is placed in the collection bucket, and the acid thrown out is recovered and treated according to the usual method for reuse.

[0015] Embodiment 2,3 operation steps are the same as example 1, difference is as follows:

[0016] Battery quantity (only) battery specification Speed ​​(rev / min) time (minutes) Example 2 120 4V1Ah 50 5 Example 3 40 ...

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PUM

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Abstract

The invention provides a method for extracting acid from a small lead-acid battery. A plurality of batteries are balancedly fixed on a rotating frame, and the rotation speed of the motor is controlled at 10-1000 rpm for 0.1-10 minutes to drive the battery to rotate. Surplus acid is thrown out, and the acid thrown out is recycled for reuse. The method is used for acid pumping of small lead-acid batteries after formation, and is easy to operate, standardized, and high in efficiency. During mass production, the acid pumping consistency of batteries is good, which can improve the consistency of batteries, increase battery capacity and life, and protect the environment. ,save resources.

Description

technical field [0001] The invention relates to a production method of a lead-acid battery, in particular to a method for extracting acid from a small lead-acid battery. Background technique [0002] Petroleum and coal resources are becoming increasingly scarce, and calls for the development of green energy are growing louder. Lead-acid batteries are widely used in various industries due to their comprehensive advantages such as cheap price, abundant material sources, high specific power, mature technology and manufacturing process, and high resource recovery rate. [0003] Electrolyte should be injected into the interior of the lead-acid battery. For non-quantitative acid injection batteries, the excess electrolyte should be pumped out after formation. The current method of pumping acid is to insert a straw into the battery injection hole and use negative pressure suction. The small lead-acid batteries used in low-power electric tools have small capacity, small volume, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/36
CPCY02E60/12Y02E60/10
Inventor 张华苏迎东凌付冬许谦
Owner NANJING SHUANGDENG SCI TECH DEV RES INST
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