Abuse and over-discharge performance evaluation and capacity recovery method for lead-acid battery

Disclosed in the present invention is an abuse and over-discharge performance evaluation for a lead-acid battery. The evaluation mainly obtains an abuse and over-discharge capacity rate Caod by means of an abuse and over-discharge performance test, and then obtains an over-discharge capacity attenuation rate Caoc by means of a cyclic over-discharge test. In the foregoing manner, the pros and cons of relevant design solutions and over-discharge capabilities are pre-evaluated. Also disclosed in the present invention is a capacity recovery method for a lead-acid battery after abuse and over-discharge. Said method activates a built-in active substance by means of deep discharge, thereby promoting backward battery capacity recovery. In general, the present invention employs a quantitative evaluation method which is simple and accurate, is timely, is beneficial for a guiding a design, and may significantly shorten the development cycle and reduce costs. By applying the present invention, a user may promptly optimize and adjust the operating efficiency of a matched battery pack.