Valence Gets US Patent for Phosphate Lithium-ion Battery Technology

February 23, 2006 by Jeff Shepard

Valence Technology has been granted U.S. patent 7,001,690 entitled "Lithium-based Active Materials and Preparation Thereof." The patent relates to the company's Saphion I technology, the key component of its rechargeable lithium-ion battery systems.

"Our battery systems based on Saphion I technology have been commercially available for more than three years and are steadily gaining traction in a number of markets, including motive, healthcare, education and defense," said Dr. James Akridge, president and CEO for Valence Technology, Inc. "Receiving this patent from the U.S. Patent & Trademark Office is recognition of the novelty and innovation of our Saphion I technology."

Patent offices in other countries have also recognized Valence's innovative technology. The company holds patents for its Saphion I cathode material in Canada, several European countries and South Korea. It holds patents in these same countries for processes related to manufacturing the Saphion I cathode material. Valence also has pending patent applications in several countries for additional phosphate lithium-ion technologies and processes.

A key benefit of Saphion I technology is its inherent electrochemical stability, which enables the creation of large, high energy density lithium-ion batteries. It utilizes natural, phosphate-based cathode material in place of the less stable and more costly cobalt-oxide, used in the majority of today's lithium-ion batteries. Saphion technology offers the high performance of lithium-ion with added environmental and cost benefits. As a result, battery systems built with Saphion technology can be designed into a wide variety of products in markets not previously served by traditional lithium-ion batteries.