A storage cell is a device used to store electrical energy in the form of chemical energy. There are several synonyms that can be used to refer to a storage cell, including rechargeable battery, secondary cell, accumulator, and storage battery. A rechargeable battery is a type of storage cell that can be recharged and used multiple times. A secondary cell is a type of storage cell that can be recharged and used again. An accumulator is a storage cell that stores energy and releases it slowly over time. A storage battery is a type of storage cell that is used to power electrical devices. Regardless of the synonym used, all storage cells function in a similar matter, storing and releasing energy as required.