Acid pumping method for small lead-acid batteries

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...

Examples

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 ...

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...

Examples

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 ...