The Electrochemical Properties of Low-crystallinity TiO2(B)-Carbon Composite as an Anode Material in Lithium Ion Battery

摘要: Abstract We have prepared two types TiO 2 (B)-carbon composites from Lepidocrocite-type compounds (K 0.86 Li 0.26 T i1.72 O 4 ) heated at 700 and 900 °C under presence of carbon nanotube (CNT) glucose as sources. The XRD data shows that it contains a single phase (B) the existence was confirmed by Raman spectra. TEM image confirms primary particles are scattered randomly contact tightly in composite. Carbon content composite found to be 5 - 8% CNT is major carbonaceous material. charge discharge curves precursor 700 °C resemble with amorphous . calculated capacity 323 mAh g −1 cut off voltage 0.9 V, which higher than bare (B). It suggested electrochemical performance this material strongly influenced both operating temperature voltage. can reach 198 mAh g 4.5 C rate 1.3 V coulombic efficiency over 99.8% after 10 th cycles.