GS Yuasa Corp announced that it has developed the "lithium vanadium phosphate" as a positive electrode material for lithium-ion (Li-ion) rechargeable batteries Sept 9, 2010.
The new material not only improves the output density and the safety of batteries but also potentially lowers their costs.
This time, GS Yuasa prototyped a battery using the new material. Compared with a battery using lithium iron phosphate, which is also a positive electrode material using phosphoric acid, the safety of the prototype is almost the same and its output is 20% higher. The company plans to develop Li-ion rechargeable batteries by using the new material.
GS Yuasa expects that the new battery will be used in hybrid electric vehicles (HEVs) and micro HEVs equipped with an idling stop mechanism. The battery cell prototyped with the lithium vanadium phosphate has a nominal voltage of 3.5V, a current capacity of 5.0Ah, a size of 21 (W) x 112 (D) x 81mm (H) and a weight of 318g.