battery technologies

Battery technologies store electrical energy chemically and release it as electricity when needed. The most common type, lithium-ion, uses lithium ions moving between two electrodes—an anode and a cathode—within an electrolyte. This allows for high energy density, rechargeability, and long lifespan, making it ideal for smartphones, laptops, and electric vehicles. Other types include nickel-metal hydride and lead-acid batteries, used in specific applications. Advances focus on improving energy capacity, charging speed, safety, and reducing environmental impact, enabling more efficient and sustainable power storage for various devices and renewable energy systems.