What is the material that constitutes the positive plate of the battery?

The positive plate consists of grid (lead-calcium alloy or lead-antimony-cadmium alloy), lead paste (superfine lead powder and sulfuric acid), short fiber (equivalent to steel bar) and other active formulas. In the uncharged state, the main component of lead paste is lead sulfate, and in the charged state, it is lead dioxide.

The device that converts chemical energy into electrical energy is called chemical battery, which is generally referred to as battery. After discharge, the internal active substances can be regenerated by charging-electric energy can be stored as chemical energy; When discharge is needed, the chemical energy is converted into electrical energy again. This kind of battery is called storage battery, also called secondary battery.