A storage battery, represented by the symbol "🔋", is a device that stores electrical energy and releases it as needed. It typically consists of one or more electrochemical cells that convert chemical energy into electrical energy through reversible reactions. The battery can be recharged by applying an external electric current, allowing it to store energy for later use. The "🔋" symbol represents the concept of a storage battery and is commonly used to indicate the presence of a battery or power source in various contexts.