Labels: Lead-acid batteries are mainly composed of the following components: Figure 1: Positive plate (lead peroxide. PbO2) ---> active material negative plate (sponge lead. Pb) ---> active material electrolyte (dilute Sulfuric acid)--->Sulfuric acid (H2SO4) + water (H2O) Figure 1 Figure 2: Battery shell and cover (PPABS flame retardant) Figure 2 Lead-acid battery shell is made of acid-resistant, heat-resistant and shock-resistant hard rubber or polypropylene plastic It is made into a monolithic structure, and the shell is divided into six cells that are not connected to each other, and each cell is equipped with a plate group and electrolyte to form a single cell battery. There are raised ribs on the bottom of the shell, which are used to support the electrode plate group, and make the active material falling off the electrode plate fall into the groove to prevent the electrode plate from short-circuiting. Figure 3: Separating plate (AGM) Figure 3 is a small safety valve positive and negative poles, positive and negative poles, etc.