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Vulcanization-induced failed lead-acid storage battery repair method

A lead-acid battery and repair method technology, applied in the direction of secondary battery repair/maintenance, etc., can solve the problems of fast battery capacity decay, short regeneration service life, low repair success rate, etc.

Active Publication Date: 2012-06-27
HANGZHOU CHUYUNFENG TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because this method lacks personalized detection of the sulfuration of the failed battery or the pulping of the active material, it does not fundamentally solve the problem of lead sulfate crystallization and salinization. As a result, the capacity of the repaired battery decays quickly and the regeneration life is short.
According to statistics, according to the standard of 80% of the nominal capacity, the repair success rate of this method is much lower than 20%.

Method used

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  • Vulcanization-induced failed lead-acid storage battery repair method
  • Vulcanization-induced failed lead-acid storage battery repair method

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Embodiment Construction

[0078] A repair method for a lead-acid battery based on sulfuration failure, comprising the following steps:

[0079] (1) Visual inspection of faults: Remove batteries with damaged appearance, liquid leakage, deformation or other hard faults through visual inspection;

[0080] (2) Detection: Use a multimeter for further detection to eliminate short-circuit and open-circuit batteries;

[0081] (3) Pre-charging: Carry out a conventional pre-charging according to the charging method provided by the battery manufacturer until the battery meets the nominal full condition, that is, the capacity marked on the battery; the purpose is to provide a basis for choosing what kind of charging and discharging process, so that it can Avoid under-repair and over-repair, improve repair rate and extend battery life;

[0082] (4) Judgment of the pulping of the active material of the plate: extract the charged electrolyte for observation, and judge whether the active material of the plate is pulp...

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Abstract

The invention relates to a lead-acid storage battery repair method, in particular to a vulcanization-induced failed lead-acid storage battery repair method. The vulcanization-induced failed lead-acid storage battery repair method is characterized in that the method comprises the following steps of: visually inspecting a fault, detecting, precharging, judging whether polar plate active matters become slurry or not, filling in dilute acid or repaid liquid, statically placing the battery, recording initial capacity, recording discharge time and over-discharge time, determining repaid charge capacity and a charge and discharge process flow, and repairing according to different battery capacities. Through the steps, the vulcanization-induced failed lead-acid storage battery repair method fundamentally solves the problem that lead sulfate is crystallized, not only can the vulcanization removal rate be reach more than 90 percent, but also the repaid success rate of the battery failed because of vulcanization can reach more than 95 percent, the service life of the battery is prolonged by more than 80 percent, the polar plate lead sulfate crystals which are though to be inevitable by the traditional theory are dissolved, and the capacities of most lead-acid storage batteries can be restored and the lead-acid storage batteries can be reused as long as the waste batteries are not visually damaged and deformed and do not have hard faults.

Description

technical field [0001] The invention relates to a repair method for a lead-acid battery, in particular to a repair method for a lead-acid battery based on vulcanization failure. Background technique [0002] Lead-acid batteries have always been the industry leader in chemical energy, accounting for more than 95% of the total battery power in the market so far. However, lead-acid batteries have the fatal weakness of short service life, and lead sulfate crystallization salinization (often called vulcanization) and active material slurry are the main reasons for this fatal weakness. Among them, the shortened lifespan due to lead sulfate crystallization accounts for more than 80%, which is even called "lead battery cancer" in the industry. However, for this fault, it can be repaired to a certain extent by desulfurization method, but it cannot be repaired for hard faults such as active material slurry and battery short circuit and open circuit. [0003] my country is a big coun...

Claims

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Application Information

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IPC IPC(8): H01M10/42
CPCY02E60/12Y02E60/10
Inventor 陈溪金潘文安何其敏
Owner HANGZHOU CHUYUNFENG TECH
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