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Method for container formation of lead-acid storage battery

A lead-acid battery, internalization technology, applied in the direction of lead-acid battery, lead-acid battery construction, secondary battery repair/maintenance, etc., can solve the problems of long charging time, restricting the production capacity of enterprises, etc., to improve battery life and initial The effect of increasing the battery capacity, accelerating the electrochemical reaction rate, and increasing the charging current

Active Publication Date: 2013-03-20
ZHEJIANG TIANNENG POWER ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the internal formation method of lead-acid batteries for energy storage has a charging time that is too long. Generally, the charging time is 90-120 hours, which seriously restricts the production capacity of enterprises.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Fill with a density of 1.250g / cm 3The sulfuric acid lead-acid battery 6-CNF-65 is built in the circulating water bath for 10 minutes, and the charging and discharging circuit of the lead-acid battery is connected at the same time. When the temperature of the sulfuric acid in the lead-acid battery is not higher than 40 ° C, the charger is turned on The charging and discharging process is as follows:

[0054] (1) at 0.1C 10 (ie 0.1*65=6.5A) charge for 1 hour; (2) then charge at 0.18C 10 Charge for 20 hours; (3) then charge at 0.09C 10 Charge for 5 hours; (4) then charge at 0.12C 10 Discharge for 2 hours; (5) then at 0.15C 10 Charging for 6 hours; (6) then charge at 0.06C 10 Charge for 6 hours; then, (7) stand still for 0.5 hours; (8) charge at 0.1C 10 Discharge for 8 hours; (9) then use 0.1C 10 Charge for 10 hours; (10) then charge at 0.06C 10 Charge for 3 hours; (11) then charge at 0.03C 10 Charge for 2 hours to obtain a lead-acid storage battery after formation...

Embodiment 2

[0058] The specification and model of the lead-acid battery used is 6-CNF-65, other operations are the same as in implementation 1, and the specific charging and discharging process is as follows:

[0059] (1) at 0.06C 10 Charge for 2 hours; (2) then charge at 0.15C 10 Charge for 22 hours; (3) then charge at 0.1C 10 Charge for 8 hours; (4) then charge with 0.1C 10 Discharge for 5 hours; (5) then at 0.15C 10 Charge for 8 hours; (6) then charge with 0.1C 10 Charge for 6 hours; then, (7) stand for 1 hour; (8) charge at 0.1C 10 Discharge for 9 hours; (9) then at 0.15C 10 Charge for 10 hours; (10) then charge at 0.06C 10 Charge for 2 hours; (11) then charge at 0.04C 10 Charge for 2 hours.

[0060] According to the standard method of GB / T22473-2008, the cycle life of the lead-acid battery after formation is measured, and the initial capacity of the lead-acid battery is measured by the method of 10h capacity detection, which is recorded in Table 1.

Embodiment 3

[0062] The specification and model of the lead-acid battery used is 6-CNF-65, other operations are the same as in implementation 1, and the specific charging and discharging process is as follows:

[0063] (1) at 0.08C 10 Charge for 1 hour; (2) then charge at 0.18C 10 Charge for 15 hours; (3) then charge at 0.12C 10 Charge for 10 hours; (4) then charge at 0.15C 10 Discharge for 2 hours; (5) then at 0.12C 10 Charge for 8 hours; (6) then charge with 0.1C 10 Charge for 5 hours; then, (7) stand for 1 hour; (8) charge at 0.1C 10 Discharge for 10 hours; (9) then at 0.12C 10 Charge for 10 hours; (10) then charge at 0.06C 10 Charge for 3 hours; (11) then charge at 0.03C 10 Charge for 3 hours.

[0064] According to the standard method of GB / T22473-2008, the cycle life of the lead-acid battery after formation is measured, and the initial capacity of the lead-acid battery is measured by the method of 10h capacity detection, which is recorded in Table 1.

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Abstract

The invention discloses a method for container formation of a lead-acid storage battery. The method comprises the following steps of: placing a lead-acid storage battery filled with electrolyte into a circulating water bath, cooling to 40 DEG C below, conducting charging and discharging, wherein the specific charging and discharging processes include eight charging processes and two discharging processes. According to the method, by adding a second-stage and a fifth-stage charging currents, the charging efficiency is improved, the container formation time of the battery is shortened, and the initial-stage capacity and recycling life of the battery can also be increased and prolonged, so that the method has great significances for the production of the storage battery.

Description

technical field [0001] The invention belongs to the field of formation of lead-acid batteries, in particular to a method for internal formation of lead-acid batteries. Background technique [0002] When the lead-acid battery has just been assembled, the main part of the lead paste on the raw plate is the same, and it is composed of lead oxide, metallic lead, lead sulfate, tribasic lead sulfate, tetrabasic lead sulfate and other substances. Positive and negative poles have been formed in terms of plate structure and process additives, but at this time they do not have the positive and negative conditions for the discharge of lead-acid batteries. Therefore, it is necessary to convert the plate into positive and negative plates with electrochemical characteristics through a chemical formation process. . [0003] The formation of lead-acid batteries is a critical process in the manufacture of lead-acid batteries, and the quality of the conversion process directly affects the pe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/12H01M10/44
CPCY02E60/126Y02E60/10Y02P70/50
Inventor 刘三元史伯荣佘仁松刘轩辰
Owner ZHEJIANG TIANNENG POWER ENERGY
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