What are primary and secondary batteries?

What is a primary battery?

As the name implies, it is a one-time-only battery. When the chemical energy is converted into electrical energy in the battery to provide electricity, the original electrical energy cannot be replenished by charging or other methods. Therefore, it cannot be used again after it is fully discharged. Chemical reactions are irreversible.

Generally, thousands of batteries, carbon-zinc batteries, alkaline batteries, mercury batteries, zinc -air batteries , etc., which are common on the market, all belong to this disposable battery. Different types of disposable batteries are used in different ways, but they are all limited to single use. The raw materials used in the manufacture of many types of batteries and the materials used in the manufacturing process are polluting and have a considerable impact on the environment and the human body.

What is a secondary battery?

Secondary batteries are reusable batteries that can be used for sustainable charging and discharging. Secondary batteries are also converted into electrical energy through chemical energy, but the electrical energy can be re-converted into chemical energy by charging, so that the battery Reuse, and the number of uses varies with material and design.

Commonly used in the market are lead-acid batteries, gel batteries, nickel-cadmium batteries, nickel-hydrogen batteries, lithium-ion batteries , lithium-ion polymer batteries, lithium iron phosphate batteries , etc. Different types of secondary batteries are used differently because of their rated voltage, rated capacity, operating temperature, and safety. The raw materials used in the manufacture of many types of batteries and the materials used in the manufacturing process are polluting and have a considerable impact on the environment and the human body.