EV Hodala

Battery

A battery is a device that stores electrical energy in chemical form and converts it into electrical energy through electrochemical reactions. It typically consists of one or more electrochemical cells, each containing an anode (negative electrode), a cathode (positive electrode), and an electrolyte that facilitates the flow of ions. Batteries are used to power a wide range of devices, from small electronic gadgets like watches and smartphones to larger systems such as electric vehicles and renewable energy storage. They are classified into primary batteries, which are single-use and cannot be recharged, and secondary batteries, which are rechargeable. The common types of batteries include alkaline, lithium-ion, nickel-cadmium, and lead-acid. The performance of a battery is characterized by its voltage, capacity (measured in ampere-hours), energy density, and cycle life. Batteries play a crucial role in modern technology, facilitating portable power and enabling the transition to renewable energy sources.