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

doi:10.1088/1674-1056/21/2/028201

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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. E_x-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

Received: 06 January 2012

PACS:	82.45.Yz	(Nanostructured materials in electrochemistry)
	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)

Corresponding Authors: Hu Yong-Sheng,yshu@aphy.iphy.ac.cn

E-mail: yshu@aphy.iphy.ac.cn

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	Zhao Liang
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	Chen Li-Quan

Cite this article:

Zhao Liang,Pan Hui-Lin,Hu Yong-Sheng et al . Spinel lithium titanate (Li₄Ti₅O₁₂) as novel anode material for room-temperature sodium-ion battery[J]. Chin. Phys. B, 2012, 21(2):028201.

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http://cpb.iphy.ac.cn/EN/10.1088/1674-1056/21/2/028201 OR http://cpb.iphy.ac.cn/EN/Y2012/V21/I2/28201