Lead carbon super battery moisturizing maintenance method

A super battery, lead-carbon technology, applied in secondary battery repair/maintenance, secondary battery charging/discharging, etc., can solve the problems of unavailable battery capacity, slow diffusion speed, recovery, etc.

Active Publication Date: 2013-11-27
TIANNENG GRP JIANGSU TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a method of replenishing water for lead-carbon super batteries, which solves the adverse effects of non-standard replenishment on battery performance in the past. After this method of maintenance, the cycle life of lead-carbon super batteries can be greatly improved

Method used

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  • Lead carbon super battery moisturizing maintenance method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] (1) The weight of the battery pack after dehydration is subtracted from the rated weight of the original battery pack, and then divided by the number of single cells in the battery pack to calculate the amount of water added to the single cell. The total water loss of the battery pack is 53 grams. The amount of water is 8.8 grams (53 grams / 6);

[0021] (2) Add deionized water to the single cell battery numbered A02-1 three times, and the water addition amount is 40%, 30%, and 30% of the water addition amount of the single cell battery (8.8 grams), and do not stand still after adding water each time. Charge according to the water replenishment test process, and remove the excess acid before charging. The water replenishment test process is to first charge the battery with a single cell voltage limit of 2.5V, 0.1 times the rated capacity of the 2-hour rate, and a constant current constant voltage charge for 16 hours, and then Charge with a constant current of 0.025 times ...

Embodiment 2

[0023] (1) The weight of the battery pack after dehydration is subtracted from the rated weight of the original battery pack, and then divided by the number of single cells in the battery pack to calculate the amount of water added to the single cell. The total water loss of the battery pack is 53 grams. The amount of water is 8.8 grams (53 grams / 6);

[0024] (2) Add deionized water to the single cell battery numbered A02-2 three times, the amount of water added is 50%, 30%, and 20% of the water added to the single cell battery (8.8 grams), and the standing time after each addition of water is respectively For 1h, 0.5h, 0h, charge according to the water replenishment test process, and remove the excess acid before charging. The water replenishment test process is to limit the voltage of the battery cell to 2.5V, and the current of 0.1 times the rated capacity of the 2-hour rate Charge at constant current and constant voltage for 18 hours, and then charge at a constant current ...

Embodiment 3

[0026] (1) The weight of the battery pack after dehydration is subtracted from the rated weight of the original battery pack, and then divided by the number of single cells in the battery pack to calculate the amount of water added to the single cell. The total water loss of the battery pack is 53 grams. The amount of water is 8.8 grams (53 grams / 6);

[0027] (2) Add deionized water to the single-cell battery numbered A02-3 three times. The amount of water added is 60%, 20%, and 20% of the water added to the single-cell battery (8.8 grams). The standing time after each addition of water is respectively For 2h, 1h, 0.5h, charge according to the water replenishment test process, and remove the excess acid before charging. The water replenishment test process is to limit the battery cell voltage to 2.5V, 0.1 times the rated capacity of the 2-hour rate current Charge at constant current and constant voltage for 19 hours, and then charge at a constant current of 0.025 times the rat...

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Abstract

The invention discloses a lead carbon super battery moisturizing maintenance method. The method comprises the following steps: adding deionized water in each unit cell battery for three times according to 40-60%, 20-40% and 10-30% of the water addition of the unit cell battery, non-standing or standing for 0-3h after adding water for each time, charging according to a moisturizing test process, extracting surplus acid at the final phase of the charging, wherein the moisturizing test process comprises charging for 16-20h with constant current which is 0.1 time of 2 hourly rated capacity and constant voltage which is battery unit cell voltage limited at 2.5 V, and then charging for 4-6h with constant current which is 0.025 time of 2 hourly rated capacity. The bad influence caused to the battery performance by conventional irregular moisturizing is solved, and after being maintained by the method disclosed by the invention, the circulating life of the lead carbon super battery is greatly improved.

Description

technical field [0001] The invention relates to the application field of lead-carbon super batteries, in particular to a method for replenishing and maintaining lead-carbon super batteries. Background technique [0002] Valve-regulated lead-carbon battery is an energy storage device combining supercapacitor and valve-regulated lead-acid battery. It has both high power and high capacity performance, and is mainly used in the fields of new energy vehicles and wind power generation energy storage. However, since the addition of carbon materials will aggravate the hydrogen evolution problem of the negative electrode, the battery will lose water seriously, and the maintenance-free performance will be reduced. In addition, the lead-carbon super battery has a high rate and a large current during operation, and the heat generated by the internal resistance is large; at the same time, the oxygen precipitated from the positive electrode recombines with the negative electrode, which w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/42H01M10/44
CPCY02E60/12Y02E60/10
Inventor 马换玉陈飞刘松赵冬冬方明学杨惠强
Owner TIANNENG GRP JIANGSU TECH
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