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| Spinel lithium titanate (Li4Ti5O12) as novel anode material for room-temperature sodium-ion battery |
| Zhao Liang, Pan Hui-Lin, Hu Yong-Sheng, Li Hong, Chen Li-Quan |
| Beijing National Laboratory for Condensed Matter Physics, Institute of Physics,Chinese Academy of Sciences, Beijing 100190, China |
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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.
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Received: 06 January 2012
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| PACS: |
82.45.Yz
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(Nanostructured materials in electrochemistry)
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82.47.Aa
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(Lithium-ion batteries)
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82.47.Cb
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(Lead-acid, nickel-metal hydride and other batteries)
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84.60.-h
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(Direct energy conversion and storage)
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| Fund:Project supported by the National High Technology Research and Development Program of China (Grant No. 2009AA033101), the National Basic Research Program of China (Grant No. 2010CB833102), the National Natural Science Foundation of China (Grant No. 50972164), the Chinese Academy of Sciences Project (Grant No. KJCX2-YW-W26), and the Hundred-Talent Project of the Chinese Academy of Sciences. |
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Corresponding Authors: Hu Yong-Sheng,yshu@aphy.iphy.ac.cn
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E-mail: yshu@aphy.iphy.ac.cn
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2012, Vol. 21 
