Battery Technology Corporation is a corporation which is specialize in researching and developing???roducing and selling Lithium battery and new materials of Lithium battery , there are two factories and one R&D ( research and development center ) , meanwhile , we have many technological cooperation with several universities and Research & development Organization , and have gain more than 10 state level inventions and innovation patents . The innovate direction is: use the cheaper materials instead of the expensive one by technology innovation and reduce the manufacturing cost .