In the discharge state of lead-acid batteries, the main component of the positive electrode is lead dioxide, and the main component of the negative electrode is lead; In the charging state, the main component of the positive and negative electrodes is lead sulfate. Lead acid batteries are widely used in various economic fields such as transportation, communication, electricity, military, navigation, and aviation
According to the differences in structure and use of lead-acid batteries, batteries can be roughly divided into four categories: 1. lead-acid batteries for starting; 2. Lead acid batteries for power use; 3. Fixed valve controlled sealed lead-acid battery; 4. Other categories include small valve controlled sealed lead-acid batteries, lead-acid batteries for mining lamps, etc. The nominal voltage of a single cell lead-acid battery is 2.0V, which can discharge up to 1.5V and charge up to 2.4V. In applications, six single cell lead-acid batteries are often connected in series to form a nominal 12V lead-acid battery. There are also 24V, 36V, 48V, etc
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