Charging method for vehicle lead-acid storage battery

A lead-acid battery and charging method technology, applied in the direction of secondary battery charging/discharging, secondary battery repair/maintenance, etc., can solve the problems of poor battery charging effect, battery can not be charged, capacity attenuation, etc. Longevity, strong practicability and obvious effect

Inactive Publication Date: 2012-04-25
SHANDONG SACRED SUN POWER SOURCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The above charging method is less effective for batteries that have been used for more than one year or have been sulfated due to factors such as overdischarge.
The main performance is that the battery cannot be charged, causing capacity decay and scrapping

Method used

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  • Charging method for vehicle lead-acid storage battery
  • Charging method for vehicle lead-acid storage battery

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Comparison scheme
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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] figure 1 It is to illustrate the various stages of the charging method more clearly and reflect it with intuitive graphics.

[0021] The first stage (T1): small current constant current charging. Charge with I1 constant current until the voltage reaches U2.

[0022] U1=1.97V / cell, as the basis for judging whether this stage works, when the voltage of a single cell is lower than this value, this stage starts. Otherwise, this stage will not start (directly enter the second stage);

[0023] U2=2V / single cell;

[0024] I1=0.05C~0.08*C ampere.

[0025] Phase two (T2): Constant current charging. Charge with I2 constant current until the voltage reaches U3. Time: 5-6 hours.

[0026] U3=2.40V / cell;

[0027] I2=0.2*C amps.

[0028] Three-stage (T3): Constant current charging with reduced current. Charge with I3 constant current until ...

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Abstract

The invention relates to an electric vehicle battery, in particular to a charging method for an electric vehicle lead-acid storage battery. Different charging voltages and currents are controlled by the following steps of: T1, constant low current charging; T2, constant current charging; T3, current reduction and constant current charging; T4, constant voltage charging; T5, pulse current charging; and T6, float charging. By the matching setting of the six stages, a battery repair function is enhanced, and charging efficiency is improved. The charging method is easy to set, low in cost, high in charging efficiency and highly practical; and the service life of the battery can be prolonged.

Description

technical field [0001] The patent of the present invention relates to an electric vehicle battery, more specifically a charging method for a lead-acid battery used in an electric vehicle. Background technique [0002] At present, the charging methods of lead-acid batteries used in electric vehicles are all three-stage charging modes, namely: [0003] The first stage (constant current charging): 0.2*C ampere constant current charging until the voltage reaches 2.4OV / cell; [0004] The second stage: (constant voltage and current limiting charging) 0.1*C ampere to continue charging until the voltage reaches 2.45V / cell, and charge at a constant voltage of 2.45V / cell until the current drops to 0.02*C ampere; [0005] Three-stage (float charging): 2.30V / single cell constant voltage, current limiting 0.02*C ampere charging. [0006] The above charging method is less effective for charging batteries that have been used for more than one year or have been sulfated due to factors suc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/44
CPCY02E60/12Y02E60/10
Inventor 赵志坚马建平
Owner SHANDONG SACRED SUN POWER SOURCES
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