公开(公告)号：US20200071184A1

公开(公告)日：2020-03-05

申请号：US16556224

申请日：2019-08-29

Applicant: PETROCHINA COMPANY LIMITED

Inventor： Xu JIN ,  Jianming LI ,  He LIU ,  Hang JIAO ,  Xiaoqi WANG ,  Liang SUN ,  Xiaodan LIU

IPC: C01G23/00 ,  C01D15/00

Abstract: A preparation method of a nanotube hierarchically structured lithium titanate includes the steps of: S1. dispersing a titanium source into an aqueous solution containing lithium hydroxide and hydrogen peroxide and stirring to obtain a mixed solution; S2. subjecting the mixed solution obtained in step S1 to a reaction by heating to obtain a precursor having a nanowire-like structure; S3. subjecting the precursor having a nanowire-like structure obtained in step S2 to separation and drying; S4. subjecting the precursor having a nanowire-like structure after separation and drying to a low-temperature annealing treatment; S5. subjecting the precursor having a nanowire-like structure after the low-temperature annealing treatment to a liquid thermal reaction to obtain the nanotube hierarchically structured lithium titanate. The method includes a simple process and easily controllable process parameters, and may be easily scaled-up for industrial production.