L 5554 (OTTO) Lithium titanate, 97% Cas 12031-82-2 - used in battery, porcelain enamels and ceramic insulating bodies. It is frequently utilized as a flux due to its good stability. L 5554 (OTTO) Lithium titanate, 97% Cas 12031-82-2 - used as a cathode in layer one of a double layer cathode for molten carbonate fuel cells.