Lead-acid battery sulfation relieving method and system

The invention relates to the technical field of storage battery maintenance, in particular to a lead-acid battery sulfation relieving method and system. A lead-acid battery is subjected to charge-discharge control through a super capacitor and a bidirectional DC-DC converter by adopting PWM pulse control according to the depth of charge DOC of the lead-acid battery and based on a de-sulfuration strategy, so the sulfation degree of the lead-acid battery is reduced, and the service life of the lead-acid storage battery is prolonged. According to the method, the charging and discharging life of the battery can be prolonged from 1500 times to 7500 times, and the service life of the lead-acid storage battery is greatly prolonged. 本发明涉及蓄电池维护技术领域，具体涉及一种铅酸电池硫酸盐化缓解方法及系统，根据铅酸电池的充电深度DOC，基于去硫化策略，采用PWM脉冲控制，通过超级电容和双向DC-DC转换器对铅酸蓄电池进行充放电控制，降低铅酸蓄电池硫酸盐化的程度，进而延长铅酸蓄电池寿命。该方法可将电池充放电寿命由1500次提升至7500次，大大延长了铅酸蓄电池的使用寿命。