Method for correcting internal resistance measurement accuracy of valve regulated sealed lead acid storage battery

Abstract

The invention provides a method for correcting internal resistance measurement accuracy of a valve regulated sealed lead acid storage battery. The method mainly comprises the first step that a storage battery set is in a float charging state after equalizing charging is carried out on the storage battery, the second step that a storage battery internal resistance measurement procedure is started, high-current discharge is carried out on the storage battery, a corresponding voltage is generated, the voltage is measured, the specific value of the voltage and the discharging current is calculated, and the internal resistance of the storage battery can be obtained, and the third step that a standard micro resistance string is connected to a negative electrode column of the storage battery in series, the relative error of the internal resistance is calculated, and the relative error of the internal resistance is within a credible range.

Description

technical field [0001] The invention relates to a method for verifying the accuracy of internal resistance measurement of a valve-controlled sealed lead-acid battery. Background technique [0002] In the prior art, the evaluation of the performance of valve-regulated sealed lead-acid batteries often uses the evaluation of the internal resistance of the test battery. The internal resistance of the battery reflects the degree of its internal chemical reaction, but the degree of each chemical reaction is different. Therefore, the internal resistance of the battery The impedance itself is a family of spectrum curves, and different frequencies, different waveforms, and different current excitation signals may cause great differences in measurement results. In addition, the developers who measure the internal resistance of the battery have formulated different standards according to their own understanding of the internal resistance of the battery, resulting in different industrie...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the evaluation of the performance of valve-regulated sealed lead-acid batteries often uses the evaluation of the internal resistance of the test battery. The internal resistance of the battery reflects the degree of its internal chemical reaction, but the degree of each chemical reaction is different. Therefore, the internal resistance of the battery The impedance itself is a family of spectrum curves, and the excitation signals of different frequencies, waveforms, and currents may cause great differences in measurement results.

In addition, the development manufacturers who measure the internal resistance of the battery have formulated different standards according to their own understanding of the internal resistance of the battery, resulting in different industries and different requirements, resulting in great differences in the measurement results of the internal resistance of the battery by different manufacturers.

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