The Cellennium Thailand Company Limited is the sole licensee to commercialize in Thailand a number of new inventions associated with vanadium fuel cells. These inventions are owned by Squirrel holdings limited and are protected by patents or by applications for patents wolrdwide. Cellennium is developing a set of related technologies that could provide catalysts to the accelerated development of renewable energy. The two main innovations are:
a vanadium fuel cell system that uses carbohydrates (such as sugar and tapioca) to generate electricity at an already proven conversion efficiency of 45%. The vanadium fuel cell system consists of (l) a vanadium redox flow battery, (2) a catalyic reactor where sugar (or any carbohydrate) is oxidized while the negative electrolyte of the battery is reduced, and (3) another catalytic reactor where oxygen (pure or in air) is reduced and the positive electrolyte of the battery is oxidized.
fist patented by one of the founders of Cellennium in 1978, the vanadium flow battery uses vanadium sulfate on both sides of the membrane in the electrochemical cells. The storage of electricity is possisble because of the unique properties of the vanadium atom, which can be electrically charged by removing two, three, four, or five electrons. The unique architecture of Cellennium's battey allows it to not only be a cheap and reliable energy storage device, but also to function as a power convesion ` device capable of transforming both voltage and frequency of the electricity input.