Preparation method of anatase extra-thin microspheres inlaid with TiO -B nanocrystals

• Main Authors: WU MINGMEI, WU QILI, TONG SHENGFU, YANG JINGLING, HE SHIMAN
• Format: Patent
• Language: Chinese; English
• Published: 04.01.2017
• Subjects: CHEMISTRY; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F; INORGANIC CHEMISTRY; METALLURGY

The invention discloses a preparation method of anatase extra-thin microspheres inlaid with TiO -B nanocrystals. According to the preparation method disclosed by the invention, a solvothermal method is used, in a glycol solution, butyl titanate, KOH and LiOH are used as raw materials, and firstly, a potassium lithium titanate ultrathin sheet sphere precursor is prepared, and through hydrothermal ion exchange and high temperature calcination, an anatase extra-thin micrometer sheet sphere structure inlaid with TiO -B nanocrystals is obtained. The micrometer sheet sphere has rich anatase /TiO -B phase interfaces, also has extra-thin sheet structures, and expresses considerable interface lithium-storing capacity and good charge transmittability, so that the materials after being subjected to circulation for 1000 times under high current density of 3400 and 8500 mA g<-1> can also have high specific capacity of 180 and 110 mAh g<-1>, and are suitable for being used as anode materials of quick charge and discharge l