Novel, High Energy Density Intermetallic Anode Material for Li-Ion Batteries

76075-The current classes of anode and cathode materials used for Li-ion batteries do not have sufficient energy density to meet many advanced application requirements. Intermetallic anodes have the potential to triple or quadruple the energy density over current carbon anodes, but have not been able to achieve the cycle life required in an economically viable manner. This project will develop an engineered intermetallic anode that will have a similar cycle life to that of current carbon materials, but with a much greater energy density. The final product will be in powdered form, and will be completely compatible with current Li-ion manufacturing processes. In Phase I, the basic processes required to make the novel material will be designed and developed by adopting and modifying known commercial production methods. The prototype materials will be physically and electrochemically characterized, and the information will be used to refine the process parameters. The best material will be scaled up for evaluation in full Li-ion cells. Commercial Applications and Other Benefits as described by the awardee: The anode material should allow the production of rechargeable Li-ion batteries with at least double the current energy density of commercially available cells, without an increase in cost. Applications should include electric and hybrid electric vehicles (including automobiles, scooters, and bikes), stationary backup power, and portable power applications (e.g., cell phones, computers, and PDAs) for both civilian and military use.