The widespread use of battery is severely hampered by low energy density and poor performance of cathode materials of Li-ion battery due to the micron size particles, small surface area, unstable structure during cycle, inadequate mechanical strength, costly precursors, temperature unstable low ionic conductivity etc. The goal of this project is to develop nano-structured cathode material by a novel method that will result in a high energy density of batteries for electric vehicle and other applications. In this phase I effort, to mitigate the deficiencies of the currently available cathode materials, a nanosize Li[NixCo1-2xMnX]O2 cathode materials will be developed. This cathode material has an excellent storage capability. Li[NixCo1-2xMnX]O2 material will be rigorously tested for their electrochemical, thermal, physical and structural properties to insure that it possess the requisite performance characteristics and high energy density at least an improvement of 2X. In Phase II, further testing and development of these cathode materials will be conducted. A prototype of battery with be design with high energy density. In Phase II, a prototype will also be manufactured for field-testing under actual conditions