Investigation on high performance electrodes active materials for advanced lithium-ion rechargeable batteries

High capacity layered Li[Li_x(Ni_0.3Co_0.1Mn_0.6)_1-x]O₂ (x = 0. 11) cathode and high voltage Li₄Ti₅O₁₂ spinel anode for the full cell systems have been studied. With combined this cathode and anode materials in an advanced lithium ion battery, a new electrochemical reaction has been demonstrated. It exhibited the initial discharge capacity of 173mAhg^-1 and also was main-tained at the average specific capacity of 170mAh/g and more than 90% capacity retention. In addition, the battery can cycle at C/10 up to 30 cycles with a very stable capacity delivery. Taking an average voltage of 2. 5 V, a specific energy density value of 400Wh/kg was obtained. These environmentally benign Mn-rich layered cathode and spinel Li₄Ti₅O₁₂ anode materials are going to be future electrodes for Li-ion rechargeable batteries in hybrid electric vehicle applications.