An acid punching and extracting device for AGM lead storage battery

By designing an acid-adding and acid-extraction device that combines negative and positive pressure, the problem of uneven electrolyte distribution during the acid-adding process of AGM lead-acid batteries was solved, thereby improving battery performance and process efficiency.

CN224384491UActive Publication Date: 2026-06-19ZHEJIANG TIANNENG AUTOMOBILE BATTERY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG TIANNENG AUTOMOBILE BATTERY CO LTD
Filing Date
2025-06-30
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

The existing AGM lead-acid batteries suffer from uneven electrolyte distribution during the acid addition process, resulting in low battery capacity and poor cycle performance. Furthermore, the traditional single-tube acid absorption method is inefficient and labor-intensive.

Method used

Design an acid pumping and extraction device, including a transparent pressure chamber, a sealing plug, an air pipe and an acid extraction pipe. By combining negative and positive pressure, the uniform distribution of electrolyte is achieved. The device has a simple structure and is easy to manufacture.

Benefits of technology

It improves the uniformity of electrolyte distribution in AGM lead-acid batteries, enhances battery performance, and improves the efficiency and consistency of acid addition and removal.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of AGM lead accumulator's pickling and acid extraction device, including pressure bin, the bottom surface of the pressure bin has the sealing plug for connecting the injection port of AGM lead accumulator top surface, the sealing plug has connecting hole, connecting hole upper end intercommunication the inner chamber of the pressure bin, lower end is opened in the bottom surface of sealing plug;The pressure bin is also equipped with trachea, trachea one end intercommunication the inner chamber of the pressure bin, the other end is as free end, the trachea is also equipped with operating port;The pickling and acid extraction device also includes the acid extraction pipe inserted into the connecting hole of the sealing plug when negative pressure acid extraction.The utility model can combine two into one with the respective tooling of pickling and acid extraction action, while solve the consistency and acid addition battery electrolyte distribution uniformity problem of battery acid extraction.
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