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Lead carbon super battery moisturizing maintenance method

A super battery, lead-carbon technology, used in the repair/maintenance of secondary batteries, charging/discharging of secondary batteries, etc., can solve the problems of recovery, slow diffusion, affecting the oxygen recombination efficiency of batteries, etc.

Active Publication Date: 2015-06-17
TIANNENG GRP JIANGSU TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Then, if the amount of water is insufficient, the battery capacity will not be well restored; if the amount of water is too much, the excess acid will block the Z-shaped channel of the separator, so that the oxygen precipitated on the positive plate will diffuse slowly in the electrolyte, and it will be separated from the negative plate. The precipitated hydrogen cannot perform the water reduction behavior in time, which ultimately affects the oxygen recombination efficiency in the battery

Method used

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  • Lead carbon super battery moisturizing maintenance method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] (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);

[0020] (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

[0022] (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);

[0023] (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

[0025] (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);

[0026] (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 water supply and maintenance method for a lead-carbon super battery. In the method, each cell is added three times according to 40%-60%, 20%-40%, and 10%-30% of the water added to the cell. Ionized water, do not stand still after adding water each time or the standing time is 0-3h, charge according to the water replenishment test process, and remove excess acid before charging. V, 0.1 times the rated capacity of the 2-hour rate, constant current and constant voltage charging for 16-20 hours, and then 4-6 hours of constant-current charging with a current of 0.025 times the rated capacity of the 2-hour rate. The invention solves the bad influence on the performance of the battery caused by non-standard water replenishment in the past, and after maintenance through this method, the cycle life of the lead-carbon super battery can be 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 Patents(China)
IPC IPC(8): H01M10/42H01M10/44
CPCY02E60/10
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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