Battery technology refers to the development and use of devices that store electrical energy for later use. These devices, known as batteries, convert chemical energy into electrical energy through electrochemical reactions. The most common type of battery today is the Lithium-Ion Battery, which powers everything from smartphones to electric vehicles. Advancements in battery technology are crucial for improving energy efficiency and sustainability. Innovations such as solid-state batteries and supercapacitors aim to enhance energy density, reduce charging times, and extend the lifespan of batteries. As the demand for renewable energy sources grows, so does the importance of efficient battery systems in storing and managing energy.