CellCube Energy Storage Systems Inc. is a Canadian company that specializes in the development, manufacturing, and marketing of energy storage systems. The company's flagship product is the CellCube, a vanadium redox flow battery that is designed to store large amounts of energy for long periods of time. The CellCube is used in a variety of applications, including renewable energy integration, grid stabilization, and backup power. The company also offers a range of other energy storage solutions, including lithium-ion batteries and hybrid systems. CellCube Energy Storage Systems Inc. is headquartered in Toronto, Ontario, and has operations in Germany, Australia, and the United States.