How to distinguish the 5th battery from the 7th battery?
1. Battery:
Battery refers to a part of the space of a cup, tank or other container or composite container that contains electrolyte solution and metal electrodes to generate current, and can convert chemical energy into electrical energy. It has a positive electrode and a negative electrode.
Second, the battery principle:
1: In a chemical battery, the direct conversion of chemical energy into electrical energy is the result of spontaneous oxidation, reduction and other chemical reactions inside the battery, which are carried out on two electrodes respectively.
2: The negative electrode active material is composed of a reducing agent with a negative potential and stable in the electrolyte, such as active metals such as zinc, cadmium, and lead, and hydrogen or hydrocarbons.
3: The positive active material is composed of oxidants with positive potential and stable in the electrolyte, such as metal oxides such as manganese dioxide, lead dioxide, nickel oxide, oxygen or air, halogens and their salts, oxoacids and their salts class etc.
4: Electrolytes are materials with good ionic conductivity, such as aqueous solutions of acids, bases, and salts, organic or inorganic non-aqueous solutions, molten salts, or solid electrolytes.
