Journal of Inorganic Materials ›› 2018, Vol. 33 ›› Issue (9): 1022-1028.DOI: 10.15541/jim20180143

• Orginal Article • Previous Articles     Next Articles

Facile Synthesis of Reduced Graphene Oxide In-situ Wrapped MnTiO3 Nanoparticles for Excellent Lithium Storage

LIU Huan-Long1, 2, ZHAO Wei2, LI Rui-Zhe2, HUANG Xie-Yi2, TANG Yu-Feng2, LI Dong-Mei1, HUANG Fu-Qiang2, 3   

  1. 1. School of Material Science and Engineering, Shanghai University, Shanghai 200444, China;
    2. State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China;
    3. Beijing National Laboratory for Molecular Sciences and State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
  • Received:2018-04-03 Revised:2018-05-01 Online:2018-09-20 Published:2018-08-14
  • About author:LIU Huan-Long (1990-), male, candidate of Master degree. E-mail: huanlongliu@outlook.com
  • Supported by:
    National Key Research and Development Program (2016YFB0901600);Science and Technology Commission of Shanghai (16ZR1440500, 16JC1401700);National Science Foundation of China (51672301);Key Research Program of Chinese Academy of Sciences (QYZDJ-SSW-JSC013, KGZD-EW-T06);Youth Innovation Promotion Association CAS

Abstract:

The stable high-capacity anode has been an urgent demand for high energy density lithium-ion batteries (LIBs). Herein, a simple and effective strategy to synthesize high-performance reduced graphene oxide (rGO) in-situ wrapped MnTiO3 nanoparticles (MnTiO3@rGO) by Sol-Gel method is designed. The MnTiO3 nanoparticles are uniformly dispersed and wrapped by few-layer graphene. Due to high conductivity of rGO, MnTiO3@rGO nanoparticles show excellent rate performance, with a specific capacity of 286 mAh·g-1 being displayed at the higher rate of 5.0 A·g-1. Moreover, benefited from porous structure and flexible rGO shell, the MnTiO3@rGO anode delivers a remarkable long-term cycling stability. The specific capacity maintains 441 mAh·g-1 after 500 cycles at 0.5 A·g-1, only losing 8.4%. Therefore, the results demonstrate that the facile synthetic strategy is highly desirable for improving the conductivity and stability of metal oxide anodes.

 

Key words: in-situ wrapped, reduced oxide graphene, MnTiO3 nanoparticles, lithium-ion batteries anode

CLC Number: