Primary cells and secondary cells are two types of batteries that are used to store and deliver electrical energy.
A primary cell is a type of battery that is designed to be used once and then discarded. These batteries are typically used in low-drain devices such as remote controls, flashlights, and smoke detectors. The chemical reactions that occur inside primary cells cannot be reversed, so once the energy has been used up, the battery must be replaced. Common types of primary cells include alkaline batteries, zinc-carbon batteries, and lithium batteries.
A secondary cell, also known as a rechargeable battery, is a type of battery that can be recharged and used multiple times. These batteries are typically used in high-drain devices such as smartphones, laptops, and electric vehicles. The chemical reactions that occur inside secondary cells can be reversed by applying an external electrical current. This allows the battery to be recharged and used again. Common types of secondary cells include lead-acid batteries, nickel-cadmium batteries (NiCad), nickel-metal-hydride batteries (NiMH) and Lithium-ion batteries (Li-ion).
It’s important to note that some batteries like Lithium primary cell are used one time and can’t be recharged, whereas some Lithium-ion batteries are rechargeable. The key difference is the chemical composition and the way the energy is stored inside the battery.
