Abstract : Lithium titanium oxide (Li4Ti5O12) with spinel-framework structures as anode material for lithium-ion battery was prepared by sol-gel and high energy ball milling (HEBM) method. According to the X-ray diffraction (XRD), Particle Size Analyses(PSA) and scanning electron microscopy (SEM) analysis, uniformly distributed Li4Ti5O12 particles with grain sizes of 100 nm were observed. Half cells, consisting of Li4Ti5O12 as working electrode and lithium foil as both counter and reference electrodes showed the high performance of high rate discharge capacity and 173 mAh/g at 0.2C in the range of 1.0~2.5 V. Furthermore, the crystalline structure of Li4Ti5O12 didn't transform during the lithium intercalation and deintercalation process.

Keywords : Lithium Titanate, Lithium Secondary Battery, Anode, Power Battery