Electrochemical Characteristics and Li+ Ion Intercalation Kinetics of Dual-Phase Li4Ti5O12/Li2TiO3 Composite in the Voltage Range 0–3 V
作者： Humaira S. Bhatti , Dalaver H. Anjum , Shafiq Ullah , Bilal Ahmed , Amir Habib
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摘要: Li4Ti5O12, Li2TiO3, and dual-phase Li4Ti5O12/Li2TiO3 composite were prepared by sol–gel method with average particle size of 1, 0.3, 0.4 μm, respectively. Though Li2TiO3 is electrochemically inactive, the rate capability comparable to that Li4Ti5O12 at different current rates. also shows a good performance 90 mA h g–1 high 10 C in voltage range 1–3 V, attributable increased interfaces composite. While delivers capacity retention 88.6% 0.2 over 50 cycles, exhibits no fading (40 cycles) 98.45% 0.5 (50 cycles). This highly stable cycling attributed contribution preventing undesirable reaction electrolyte during cycling. Cyclic voltammetric curves 0–3 V exhibit two anodic peaks 1.51 0.7–0.0 indicating modes lithium intercalation...
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