Repair and maintenance type charging method of lead-acid storage battery

Abstract

The invention discloses a repair and maintenance type charging method of a lead-acid storage battery. The method comprises the following steps: a continuous and repeated constant-current restricted-voltage output process comprising constant current output, pause, discharging, pause, sweep frequency pulse output, pause, discharging and pause, a standing and stable process and a constant-voltage restricted-current complementary charging process. With adoption of the method disclosed by the invention, in the battery repair and charging process, lead sulfide crystals existing on a battery plate before repair can be broken and dissolved, three polarization phenomena including ohmic polarization, concentration polarization and electrochemical polarization and generated during charging or repair can be eliminated, formation of new lead sulfide crystals on the battery plate can be restrained, generation of high temperature of the lead-acid storage battery can be effectively prevented in repair and charging, time of repair or charging can be reduced, and the service life of the lead-acid storage battery can be prolonged; therefore, the maximum repair efficiency and the maximum capacitance of the lead-acid storage battery can be reached.

Description

technical field [0001] The present invention relates to lead-acid storage battery technology, especially the repair and maintenance charging method of lead-acid storage battery. The method of parallel output of constant current and frequency sweep pulse is adopted as a working cycle, and the work of continuously and repeatedly outputting lead-acid storage battery process. Background technique [0002] Lead-acid battery is the most widely used chemical power source in the world so far. It has good plasticity, stable voltage characteristics, large capacity, long service life, wide application range, no pollution, abundant raw material sources, low manufacturing cost, and can be The advantages of green energy such as renewable use and low cost. Therefore, the demand and application of lead-acid batteries in the market are extremely extensive, and a large amount of sales has also brought about the amount of repair and maintenance of lead-acid batteries. The existing lead-acid ...

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Problems solved by technology

[0005] 2) Concentration polarization - during charging or repairing, the diffusion (equilibrium) speed of products and reactants is far behind the chemical reaction speed, resulting in uneven distribution of electrolyte concentration in the middle and surrounding areas of the battery plate;

[0006] 3) Electrochemical polarization - the speed of the electrochemical reaction on the electrode lags behind the speed of electron movement on the electrode, resulting in electrochemical polarization, which seriously hinders the normal charging current

[0007] The second is the problem of lead sulfide crystals produced on the battery plate: during the electrochemical reaction process of charge and discharge of lead-acid batteries, lead sulfide crystals will be produced on the surface of the plate at the same time, and continue to produce or increase, which greatly hinders The normal electrochemical reaction of the battery

[0008] The third is that the lead-acid battery takes a long time to charge, and it cannot achieve the purpose of saturating the rated capacity of the battery in the actual sense. Long-term use will easily shorten the life of the battery

[0009] The problems of battery repair and maintenance and charging have been hindering the development of lead-acid batteries

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