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Recovery method of waste lead-acid storage battery

A lead-acid battery, repair method technology, applied in the direction of secondary battery repair/maintenance, secondary battery, secondary battery charging/discharging, etc. Efficiency and other issues, to achieve the effect of stable and good performance, increased utilization, and improved charging efficiency

Active Publication Date: 2018-07-13
浙江赫克力能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] According to the above process, it takes about 40 hours to repair the 6-DZM-20Ah battery. The time required is too long, which affects the labor efficiency of the workshop and increases the processing cycle of the service battery.

Method used

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  • Recovery method of waste lead-acid storage battery
  • Recovery method of waste lead-acid storage battery
  • Recovery method of waste lead-acid storage battery

Examples

Experimental program
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Embodiment 1

[0031] 1. Different types of small discharge repair methods for electric vehicle lead-acid batteries, including:

[0032] 1) Preparatory work: Put the batteries returned from the market in place, and select a small discharge repair instrument (current is 0-2A, voltage is 0-15V);

[0033] 2) Connect the battery and the small discharge repair instrument, each single battery and a single small discharge repair instrument form a circuit, start discharging (the current slowly changes from 2A to 0A, and the voltage 12-14V gradually decreases to 0V), when discharging The signal light is on, wait for the signal light to go out, and the discharge ends;

[0034] 3) After the discharge is over, check the open circuit voltage of a single battery. If the open circuit voltage is ≥ 10V, return to step 2), otherwise, proceed to the next step of repair;

[0035] 4) Put the battery on the shelf after standing for two hours, connect it to the bus-type charging and discharging equipment, and con...

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Abstract

The invention relates to a recovery method of a waste lead-acid storage battery, and belongs to the technical field of battery recovery. The recovery method comprises the steps of (1) discharging therecycled waste lead-acid storage battery; (2) selecting and connecting the lead-acid storage battery with an open-circuit voltage smaller than 10V to discharging equipment, performing primary saturated charging, and sieving the battery qualified by primary sieving through discharging test; (3) performing secondary saturated charging on the battery qualified by primary sieving, performing discharging test, and sieving the battery qualified by secondary sieving; and (4) grouping. The charging current and the time setting of a battery recovery process are adjusted, small discharging recovery is added to the process, the charging receiving capability of the battery is higher under the condition that the charging rate is basically unchanged, and the charging efficiency is remarkably improved; after process optimization, the primary sieving qualification rate, the secondary sieving qualification rate and the yield are improved, and the utilization rate of the service battery is improved; andthe lead-acid storage battery recovered by the method is stable and favorable in performance.

Description

technical field [0001] The invention relates to the technical field of battery repair, in particular to a repair method for waste lead-acid batteries. Background technique [0002] In recent years, many sources in the market have reported that after 3-5 months of use, the battery’s charge acceptance is poor, and the battery can’t run far, which is what customers often say, “it’s full once charged, and it can’t run far”, which has caused the market to return the battery rise. The main reason is: during the long-term use or storage of lead-acid batteries, due to the salinization of lead sulfate crystals (that is, vulcanization) and the slurrying of active materials (that is, the softening of the plates), the battery capacity gradually decreases or even is scrapped. [0003] Battery repair refers to the general term for repairing secondary rechargeable batteries with degraded performance or failure by physical or chemical means. By repairing, the capacity of the battery can b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/42H01M10/44
CPCH01M10/4242H01M10/441Y02E60/10
Inventor 杨建芬高奎章剑孙炜佘爱强
Owner 浙江赫克力能源有限公司
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