Facile synthesis of hierarchically porous Li4Ti5O12 microspheres for high rate lithium ion batteries

被引:264
作者
Shen, Laifa [1 ]
Yuan, Changzhou [2 ]
Luo, Hongjun [1 ]
Zhang, Xiaogang [1 ]
Xu, Ke [1 ]
Xia, Yongyao [3 ]
机构
[1] Nanjing Univ Aeronaut & Astronaut, Coll Mat Sci & Engn, Nanjing 210016, Peoples R China
[2] Anhui Univ Technol, Sch Mat Sci & Engn, Maanshan 243002, Peoples R China
[3] Fudan Univ, Dept Chem, Shanghai 200433, Peoples R China
基金
中国国家自然科学基金;
关键词
ORDERED MACROPOROUS LI4TI5O12; ELECTROCHEMICAL PROPERTIES; SOLVOTHERMAL SYNTHESIS; ELECTRODE PERFORMANCE; SPINEL LI4TI5O12; CATHODE MATERIAL; ANODE MATERIAL; LIFEPO4; POWER; TIO2;
D O I
10.1039/c0jm00348d
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A novel approach has been developed to synthesize hierarchically porous Li4Ti5O12 microspheres assembled by well-crystalline nanoparticles. The fabrication process is very simple, involving only hydrothermal treatment of commercial anatase TiO2 powder in LiOH solution and a following calcination procedure without employing any surfactants or templates. Field-emission scanning electron microscopy, transmission electron microscopy, X-ray diffraction, and nitrogen adsorption/desorption analysis were used to characterize their morphologies and structures. Such Li4Ti5O12 nano/microspherical superstructures, with sizes of ca. 4 mu m in diameter, exhibits rich hierarchical pores and a specific surface area of 57.5 m(2) g(-1). A possible growth mechanism of the nano/microspherical superstructure is further discussed. The calcination temperature has a great effect on the crystal structure and electrochemical properties of the materials. The hierarchically porous Li4Ti5O12 microspheres annealed at 700 degrees C have the perfect crystallization and optimal particle size, which can deliver good coulombic efficiency, ultrahigh rate capability at high rates, and excellent capacity retention over 200 cycles.
引用
收藏
页码:6998 / 7004
页数:7
相关论文
共 50 条
  • [21] Progress of Li4Ti5O12 anode material for lithium ion batteries
    Lin, X.
    Pan, F.
    Wang, H.
    [J]. MATERIALS TECHNOLOGY, 2014, 29 (A2) : A82 - A87
  • [22] Facile synthesis of N-doped carbon-coated Li4Ti5O12 anode for application in high-rate lithium ion batteries
    Zhengbing Fu
    Lihui Chen
    Lu Wan
    Feng Wang
    Jun Du
    Xiong Yang
    Yu Ding
    [J]. Ionics, 2018, 24 : 1579 - 1586
  • [23] EASY SYNTHESIS OF Li4Ti5O12/C MICROSPHERES CONTAINING NANOPARTICLES AS ANODE MATERIAL FOR HIGH-RATE Li-ION BATTERIES
    Zheng, Xiaodong
    Dong, Lina
    Dong, Chenchu
    [J]. SURFACE REVIEW AND LETTERS, 2014, 21 (02)
  • [24] Solvothermal synthesis of micro-/nanoscale Cu/Li4Ti5O12 composites for high rate Li-ion batteries
    Li, Na
    Liang, Jianwen
    Wei, Denghu
    Zhu, Youngchun
    Qian, Yitai
    [J]. ELECTROCHIMICA ACTA, 2014, 123 : 346 - 352
  • [25] Synthesis and electrochemical performance of F-doped Li4Ti5O12 for lithium-ion batteries
    Zhao, Zhen
    Xu, Yunlong
    Ji, Mandi
    Zhang, Huang
    [J]. ELECTROCHIMICA ACTA, 2013, 109 : 645 - 650
  • [26] A strategy for scalable synthesis of Li4Ti5o12/reduced graphene oxide toward high rate lithium-ion batteries
    Ni, Haifang
    Song, Wei-Li
    Fan, Li-Zhen
    [J]. ELECTROCHEMISTRY COMMUNICATIONS, 2014, 40 : 1 - 4
  • [27] Spray-drying assisted synthesis of a Li4Ti5O12/C composite for high rate performance lithium ion batteries
    Park, Ji-Hyun
    Kang, Seok-Won
    Kwon, Tae-Soon
    Park, Ho Seok
    [J]. CERAMICS INTERNATIONAL, 2018, 44 (03) : 2683 - 2690
  • [28] Ion-Exchange Synthesis of Li4Ti5O12 Nanotubes and Nanoparticles for High-Rate Li-Ion Batteries
    Yagi, Shunsuke
    Morinaga, Tadahiko
    Togo, Masakazu
    Tsuda, Hiroshi
    Shio, Shoichiro
    Nakahira, Atsushi
    [J]. MATERIALS TRANSACTIONS, 2016, 57 (01) : 42 - 45
  • [29] Carbon coated Li4Ti5O12 nanorods as superior anode material for high rate lithium ion batteries
    Luo, Hongjun
    Shen, Laifa
    Rui, Kun
    Li, Hongsen
    Zhang, Xiaogang
    [J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2013, 572 : 37 - 42
  • [30] Electrospun Conformal Li4Ti5O12/C Fibers for High-Rate Lithium-Ion Batteries
    Xu, Henghui
    Hu, Xianluo
    Luo, Wei
    Sun, Yongming
    Yang, Ze
    Hu, Chenchen
    Huang, Yunhui
    [J]. CHEMELECTROCHEM, 2014, 1 (03): : 611 - 616