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Deep depolarization charging method for lead-acid storage battery

A technology of lead-acid battery and charging method, which is applied in the direction of secondary battery charging/discharging, battery circuit device, secondary battery repair/maintenance, etc., can solve problems such as not being accepted by the market, reduce formation time and improve production efficiency Effect

Inactive Publication Date: 2012-01-04
蒋冠珞
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally, the benefits in terms of charging time, energy consumption, and temperature control are all below 15%; therefore, they have not been accepted by the market.

Method used

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  • Deep depolarization charging method for lead-acid storage battery
  • Deep depolarization charging method for lead-acid storage battery
  • Deep depolarization charging method for lead-acid storage battery

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0026] see figure 2 and image 3 , For the 60V, 22AH battery fast charging circuit, each charging cycle is composed of a charging time Tc and a stop charging time Ts. During the charging time, the charging current Ic is 1.0-1.5C, and the charging current is about 30A. The charging time can be selected from 4 seconds to 30 seconds depending on the conditions. In this example, 10 seconds is selected. The charging stop time is 2 seconds, during which there are a series of discharge pulses and resting time after discharge. The discharge is stored in a capacitor (energy storage capacitor), and the energy on the capacitor is recharged to the battery again during the next charging time. In this example, the discharge pulse width is 0.8ms, the pulse interval is 6ms, and the resting time is 250ms. Therefore, a maximum of 255 discharge pulses are allowed within the charging stop time. 60 minutes to fill 60% of the capacity.

no. 2 example

[0028] see Figure 4 , the energy storage capacitor in the first embodiment is replaced by a resistor, and at the same time, the energy storage feedback unit is canceled, so that the discharge current is consumed by heat generated by the resistor. This is much simpler to control.

no. 3 example

[0030] see Figure 5 and Figure 6 , The practical example of multiplexing circuits sharing one charger, (replaced by 2 circuits in this example) the two circuits are charged and discharged in turn, and the discharged energy storage is fully charged back to the battery. Practice has proved that this is a major innovation in the storage battery industry, and it is of great significance in terms of energy saving and environmental protection.

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Abstract

The invention discloses a deep depolarization charging method for a lead-acid storage battery. The method comprises a plurality of continuous charging processes and discharging processes. In a charging and discharging cycle, the discharging process after charging comprises a plurality of discharge pulses and a period of standing time. In the method, the shortcomings of the prior art are analyzed in detail based on a physicochemical mechanism and an electrochemical mechanism of the charging process of the storage battery, and a 'deep depolarization charging technical' scheme can be obtained by a great number of tests under the guidance of Mas theory. Experiments show that a water tank or water cooling is not required by formation in the lead-acid storage battery, formation time can be reduced by 50 percent, production efficiency can be improved by 80 percent, additional charging time can be shortened by 85 percent, the temperature of electrolyte is kept below 60 DEG C, environment friendliness, energy saving and high efficiency can be really achieved by the technology; the technology is applied to the formation and additional charging of the lead-acid storage battery; and the lead-acid storage battery can be additionally charged to achieve the capacity of 60 percent only for 60 minutes.

Description

technical field [0001] The invention relates to a charging method for deep depolarization of a lead-acid storage battery. Background technique [0002] It is well known that the battery charging process is accompanied by polarization, and a series of reactions caused by polarization are the internal causes of heating caused by charging. In order to prevent the temperature from overheating, people have only two options: (1), reduce the charging current (this will reduce production efficiency); (2), immerse the battery in a cold water tank (this will increase equipment and operating costs) to reduce the temperature . Method (2) is currently the method commonly used by storage battery manufacturers all over the world. [0003] Lead-acid batteries are accompanied by various polarization phenomena during the charging process, resulting in additional voltage between the electrodes, so that the theoretical charging voltage cannot maintain the predetermined charging current. In o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/44
CPCH02J7/0093H01M10/44Y02E60/12H02J7/00711Y02E60/10
Inventor 蒋冠珞
Owner 蒋冠珞
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