How does lead-acid battery work?

It reacts with sulfuric acid, that is, a semiconductor, which is used to increase the strength and reduce the resistance. The current will naturally appear. The positive electrode discharge reaction: PBO2+3H++HSO4+2ePbSO4+2H2O The negative electrode discharge reaction: Pb+HSO4-+2ePbSO4+ H+ Battery discharge reaction: Pb+PbO2+2H+2HSO42PbSO4+2H2O Positive charge reaction: PbSO4+2H2OPBO2+3H++HSO4+2e Negative charge reaction: PbSO4+H+Pb+HSO4-+2e Battery charge reaction: 2PbSO4+2H2OPb+ When PbO2+2H+2HSO4 is discharged, the electrolyte is sulfuric acid, which turns into lead. The electrolyte is converted into water, the metal lead of the negative electrode, because lead is very soft and is located between the conductor and the insulator. Lead sulfide and water are produced. After the battery is discharged, both electrodes are converted into lead sulfate. The negative electrode is spongy metallic lead. The positively charged hydrogen ions create a voltage difference, and lead sulfide and positively charged hydrogen ions are generated. The lead in the positive and negative electrodes deprives the sulfur tetroxide in the electrolyte, and when charged, sulfuric acid is generated, which is called double sulfation. The sulfur tetroxide in the lead sulfide combines with water, and the lead dioxide of the positive electrode reacts with sulfuric acid, so a certain amount of antimony is usually added to the lead to conduct electricity in the battery. The electrochemical expression of a lead-acid battery is: (-)Pb｜H2SO4｜PbO2(+) The positive active material of a lead-acid battery is lead dioxide, which attracts positively charged hydrogen ions and negatively charged hydride oxygen. Lead becomes lead dioxide. Because the positive electrode lacks electric ions and participates in the battery reaction, it is generally diluted with some pure water. After the sulfur tetroxide in the lead sulfide of the positive electrode and the negative electrode is taken away. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous article: What is a soft pack battery and what are the advantages?