Preparation and characterisation of porous lithium titanate thin film by magnetron sputtering. (November 2015)

• Record Type: Journal Article
• Authors: Yu, Z. Z.; Xu, H. R.; Zhu, G. S.; Yu, A. B.
• Is Part Of: Materials research innovations. Volume 19(2015)Supplement 9
• Page Start: S9-302
• Page End: S9-305
• Publication Date: 2015-11
• Subjects: Lithium titanate thin film -- Porous structure -- Anode material -- Radio frequency magnetron sputtering -- Powder target; Materials -- Research -- Periodicals; Matériaux -- Recherche -- Périodiques; 620.1105
• DOI: 10.1179/1432891715Z.0000000001995
• Languages: English
• ISSNs: 1432-8917

Abstract

Abstract : This work introduces a facile solution method for preparation of porous Li4 Ti5 O12 (LTO) thin film electrode for lithium-ion batteries (LIBs). The porous LTO films were prepared by magnetron sputtering deposition using cubic spinel LTO powder target as a sputtering source. The microstructure and morphology of the LTO thin films annealed in air (LTO-air) was porous structured thin film. The LTO-air thin film electrode showed the excellent electrochemical performance. The capacity of LTO-air up to 81 μAh cm −2 μm was at 10 μA cm −2, and capacity retention was 99% after 100 cycles at 10 μA cm −2 . The porous structure features of thin film likely contributed to the good electrochemical performance of the LTO-air thin film. This research suggests that LTO thin films have the potential for the high energy storage electrode material for LIBs.