中国物理B ›› 2012, Vol. 21 ›› Issue (2): 28201-028201.doi: 10.1088/1674-1056/21/2/028201

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  • 收稿日期:2012-01-06 修回日期:2012-01-16 出版日期:2012-01-30 发布日期:2012-01-30
  • 通讯作者: 胡勇胜,yshu@aphy.iphy.ac.cn E-mail:yshu@aphy.iphy.ac.cn

Spinel lithium titanate (Li4Ti5O12) as novel anode material for room-temperature sodium-ion battery

Zhao Liang (赵亮), Pan Hui-Lin (潘慧霖), Hu Yong-Sheng (胡勇胜), Li Hong (李泓), Chen Li-Quan (陈立泉)   

  1. Beijing National Laboratory for Condensed Matter Physics, Institute of Physics,Chinese Academy of Sciences, Beijing 100190, China
  • Received:2012-01-06 Revised:2012-01-16 Online:2012-01-30 Published:2012-01-30
  • Contact: Hu Yong-Sheng,yshu@aphy.iphy.ac.cn E-mail:yshu@aphy.iphy.ac.cn

Abstract: This is the first time that a novel anode material, spinel Li4Ti5O12 which is well known as a “zero-strain” anode material for lithium storage, has been introduced for sodium-ion battery. The Li4Ti5O12 shows an average Na storage voltage of about 1.0 V and a reversible capacity of about 145 mAh/g, thereby making it a promising anode for sodium-ion battery. Ex-situ X-ray diffraction (XRD) is used to investigate the structure change in the Na insertion/deinsertion process. Based on this, a possible Na storage mechanism is proposed.

Key words: spinel, lithium titanate, Li4Ti5O12, sodium-ion battery

中图分类号:  (Nanostructured materials in electrochemistry)

  • 82.45.Yz
82.47.Aa (Lithium-ion batteries) 82.47.Cb (Lead-acid, nickel-metal hydride and other batteries) 84.60.-h (Direct energy conversion and storage)