Preparation and characterization of Li4Ti5O12 from ilmenite

✍ Scribed by Xiaojuan Wang; Xinhai Li; Zhixing Wang; Ling Wu; Peng Yue; Huajun Guo; Feixiang Wu; Tingting Ma

• Book ID: 104089216
• Publisher: Elsevier Science
• Year: 2010
• Tongue: English
• Weight: 809 KB
• Volume: 204
• Category: Article
• ISSN: 0032-5910
• DOI: 10.1016/j.powtec.2010.07.030

✦ Synopsis

Titanium-containing precursor is prepared from the high-titanium residue, which is obtained from the ilmenite by a mechanical activation and leaching process. After two-step alkaline leaching, about 95% of silicon dioxide is separated from the high-titanium residue. The purified titanium-containing precursor is used to synthesize Li 4 Ti 5 O 12 . XRD shows that the synthesized Li 4 Ti 5 O 12 is cubic spinel phase and well crystallized. At the discharge-charge rate of 0.1C and 0.5C, its discharge capacities are 138.3 and 126.8 mAh/g, respectively.