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Valve-regulated storage battery container formation process

A technology of internal formation and storage battery, which is applied in the direction of lead-acid battery, lead-acid battery construction, secondary battery, etc. It can solve the problems of poor consistency of battery discharge capacity and difficult temperature control, and achieve uniform positive active material content and long charging time. The effect of short and low charging power

Active Publication Date: 2020-07-03
TIANNENG BATTERY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention aims at the problems in the prior art that the temperature is not easy to control due to charging and heating during the formation process, and the consistency of the battery discharge capacity is poor, etc., and provides a valve-regulated battery internal formation process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 6-DZF-12 There are 864 semi-finished batteries in total. After adding acid, put the batteries into the water tank (water bath formation tank) and pour cooling water in time. After the liquid level reaches the height of the plate, stop feeding the cooling water; the battery stands still for 0.5h. The 18 batteries in each path are connected in series, and the temperature sensing probe on the side of the 9th battery in a single path is selected to be attached to the charging device to detect the charging temperature of the battery.

[0027] The set temperature is 45°C, the maximum battery current is 6.0A (0.5C 2 A) Carry out chemical conversion:

[0028] Once charged, the battery first charges at 0.6A (0.05C 2 A) Charge for 1 hour, and then start charging with a current of 6.0A; when the temperature reaches 45°C during charging, the charging current drops, and the charging current drops to 1.87A / h (about 0.156C 2 A / h, the current gradually drops from 6.0A to 3.2A within ...

Embodiment 2

[0037] 6-DZF-20 There are 1152 semi-finished batteries in total. After adding acid, put the batteries into the water tank and pour cooling water in time. After the liquid level reaches the plate height, stop feeding the cooling water; the batteries stand for 2 hours. The 18 batteries in each path are connected in series, and the side of the sixth battery in a single path is selected to be connected to the temperature sensing probe on the charging device to detect the charging temperature of the battery.

[0038] The set temperature is 44°C, the maximum battery current is 14.0A (0.7C 2 A) Carry out chemical conversion:

[0039] Once charged, the battery first charges at 2.0A (0.1C 2 A) Charge for 2 hours, and then start charging with a current of 14.0A; when the temperature reaches 44°C during charging, the charging current drops, and the charging current drops to 4.11A / h (about 0.206C 2 A / h, the charging current gradually drops from 14.0A to 2.9A within 2.7h); from 2.7h onwa...

Embodiment 3

[0048] 6-EVF-32 There are 864 semi-finished batteries in total. After adding acid, put the batteries into the water tank and pour cooling water in time. Stop feeding the cooling water after the liquid level reaches the plate height; the batteries stand for 1 hour. The 18 batteries in each path are connected in series, and the temperature sensing probe on the side of the 12th battery in a single path is selected to be attached to the charging device to detect the charging temperature of the battery.

[0049] The set temperature is 46°C, the maximum battery current is 20.0A (0.625C 2 A) Carry out chemical conversion:

[0050] Once charged, the battery first charges at 3.0A (0.09375C 2 A) Charge for 2 hours, and then start charging with a current of 20.0A; when the temperature reaches 46°C during charging, the charging current drops, and the charging current drops to 6.35A / h (about 0.198C 2 A / h, the charging current gradually decreased from 20.0A to 3.5A within 2.6h); from 2.6h...

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PUM

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Abstract

The invention discloses a valve-regulated storage battery container formation process, wherein a container formation temperature is set to be 45+ / -1 DEG C, three-charging and two-discharging chargingand discharging are conducted, and in the three-charging process, when the temperature in the charging process is higher than the set temperature, the charging current is reduced, and when the temperature is lower than the set temperature, the charging current is increased. According to the invention, the net charging electric quantity of the valve-regulated storage battery container formation process is relatively low, and the charging time is relatively short; the temperatures of all stages in the battery charging process are consistent, the content of positive active substances after formation is uniform and consistent, and the discharging consistency is high; and the current of the battery at the final charging stage is adjusted according to the set temperature so as to reduce the damage of charging gassing to the active substance strength and the separation plate, prolong the service life of the battery and reduce the acid mist discharge in the formation process.

Description

technical field [0001] The invention relates to the technical field of lead storage battery production, in particular to an internal formation process of a valve-regulated storage battery. Background technique [0002] The internal formation process of traditional valve-regulated lead-acid batteries basically takes 4-7 days. During the actual formation process, the internal temperature of the battery fluctuates due to changes in air temperature, charging current, side reaction heat generation, and external cooling measures for the battery. [0003] For example, the invention with the publication number CN102437380A discloses a method for internal formation of a five-charge and four-discharge storage battery. Put the battery in cooling water to cool down, let the battery stand for 2+0.5h to soak the polar plate and separator with sulfuric acid, cool down the battery to 30°C~40°C, turn on the electricity and form, control the water temperature during the formation process, so ...

Claims

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Application Information

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IPC IPC(8): H01M10/12
CPCH01M10/121Y02E60/10Y02P70/50
Inventor 庄建杨新明方玉斌陈贤海
Owner TIANNENG BATTERY GROUP