A method for acid leaching of lead-acid storage battery plates

Abstract

The invention relates to the field of lead-acid storage batteries and discloses an acid leaching method for a lead-acid storage battery electrode plate. The method comprises the following steps of: putting a coated lead-acid storage battery electrode plate on a conveying belt; excessively leaching an acid leaching solution on the surface of an acid pressing roll through an acid leaching tube; and when the electrode plate is conveyed to the lower part of the acid pressing roll, rolling the electrode plate by the acid pressing roll, so that the acid leaching solution is attached to the surface of the electrode plate, wherein the conveying speed of the conveying belt is 120-140 electrode plates per minute, the acid leaching solution density of the lead-acid storage battery positive plate is 1.07-1.20g / cm<3>, and the acid leaching solution density of the lead-acid storage battery negative plate is 1.10-1.30g / cm<3>. According to the acid leaching method, the surface strength of the lead-acid storage battery electrode plate can be enhanced and the dust drop-off and electrode plate rejection rate can be reduced, so that the safety and health of production personnel are ensured and the performance of the storage battery can be enhanced.

Description

technical field [0001] The invention relates to the field of lead-acid storage batteries, in particular to a method for soaking lead-acid storage battery plates with acid. Background technique [0002] The active substances in lead-acid batteries are mainly lead compounds. The harm of lead to the human body mainly enters the human body through the respiratory and digestive systems. Once lead enters the body, it can diffuse from the blood to soft tissues and body organs, and eventually into bones and teeth. Lead can stay in bones for up to 30 years. In the current plate manufacturing process, especially in the process of brushing, weighing, and wrapping, it will cause the plate to be scrapped and a large amount of lead powder to fall off on the surface, reducing the utilization rate of the plate and increasing the safety of workers. difficulty. [0003] In the production process of the lead-acid battery plate, it is necessary to roll the plate after coating, which can incr...

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Problems solved by technology

[0004] In the actual production workshop, improper control of the acid leaching process will, on the one hand, cause degreasing, cracking, and increased dust on the plate, which will affect the normal production of the battery; on the other hand, it will easily cause the plate Formation is more difficult and battery capacity is reduced, resulting in poor performance of battery products