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Lead-acid battery charging method

A technology of lead-acid battery and charging method, which is applied in the direction of secondary battery charging/discharging, secondary battery repair/maintenance, etc. It can solve the problems of electrolyte consumption, long charging time, and inability to reconcile charging time and charging current, etc., to achieve Effect of reducing loss, shortening time of charge

Inactive Publication Date: 2007-11-14
张家港市华为电子有限公司
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AI Technical Summary

Problems solved by technology

The disadvantage of this charging method is that no matter how the above predetermined value is selected, it is impossible to reconcile the contradiction between charging time and charging current.
If the preset value is set high, the charging time can be shortened, but the charging current will be too large, and a large amount of heat and gas will be released in the charging process, consuming a large amount of electrolyte; if the preset value is set low, although The charging current can be made safe and moderate, but the charging time will become very long

Method used

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  • Lead-acid battery charging method

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Embodiment Construction

[0011] Below in conjunction with accompanying drawing, the present invention will be further described:

[0012] The charging method of a lead-acid storage battery according to the present invention divides the whole charging process into three charging stages connected with each other, and charges the lead-acid storage battery in turn with constant current and constant voltage in each charging stage. From the charging voltage curve A and charging current curve B in Figure 1, it can be seen that in the three charging stages connected to each other, the charging current in the constant current mode decreases sequentially, from C / 8 to C / 16 to C / 16 32. The charging voltage of the constant voltage mode increases sequentially, from 1.2U to 1.25U and then to 1.31U. The specific process of the above-mentioned charging method is as follows: As shown in Figure 1, before the three charging stages connected to each other, there is a pre-charging stage 1. In this pre-charging stage 1, a v...

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Abstract

The invention discloses a method for charging a lead-acid storage battery able to shorten charging time and making charge current safe and comfortable, dividing the whole charging course into at least three charging stages, each of which charges the lead-acid storage battery in turn in constant current and voltage modes. And the method is mainly used to charge lead-acid storage batteries.

Description

technical field [0001] The invention relates to a charging method for a lead-acid storage battery. Background technique [0002] At present, the constant voltage and current limiting method is the most commonly used method among all lead-acid battery charging methods. The so-called constant voltage and current limiting method is actually a combination of constant voltage charging and constant current charging, so it is also called a hybrid charging method. At the beginning of charging, because the voltage of the battery is relatively low, in order to avoid damage to the battery due to excessive charging current, the constant current charging method is used to limit the charging current, but in general, the charging current is still relatively large, which is helpful It is conducive to the uniformity and tightness of the positive active material and the interface structure, and improves the capacity and cycle life of the battery plate; as the charging continues, the voltage ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/44
CPCY02E60/10
Inventor 卜凡夫
Owner 张家港市华为电子有限公司
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