A long-life lithium-ion battery with a highly porous TiNb2O7 anode for large-scale electrical energy storage

Bingkun Guo; Xiqian Yu; Xiao-Guang Sun; Miaofang Chi; Zhen-An Qiao; Jue Liu; Yong-Sheng Hu; Xiao-Qing Yang; John B. Goodenough; Sheng Dai

doi:10.1039/C4EE00508B

A long-life lithium-ion battery with a highly porous TiNb₂O₇ anode for large-scale electrical energy storage†

Bingkun Guo,‡*^a Xiqian Yu,‡^b Xiao-Guang Sun,^a Miaofang Chi,^c Zhen-An Qiao,^a Jue Liu,^b Yong-Sheng Hu,*^d Xiao-Qing Yang,^b John B. Goodenough^e and Sheng Dai*^af

Author affiliations

* Corresponding authors

^a Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
E-mail: dais@ornl.gov, guobkun@hotmail.com

^b Brookhaven National Laboratory, Upton, New York 11973, USA

^c Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA

^d Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
E-mail: yshu@aphy.iphy.ac.cn

^e Department of Mechanical Engineering, University of Texas at Austin, Austin, Texas 78712, USA

^f Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, USA

Abstract

A high performance TiNb₂O₇ anode material with a nanoporous nature, which was prepared by a facile approach, exhibits an average storage voltage of 1.66 V, a reversible capacity of 281 mA h g⁻¹, and an 84% capacity retention after 1000 cycles, and may be suitable for long-life stationary lithium-ion batteries.

Energy & Environmental Science

A long-life lithium-ion battery with a highly porous TiNb₂O₇ anode for large-scale electrical energy storage†

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A long-life lithium-ion battery with a highly porous TiNb₂O₇ anode for large-scale electrical energy storage

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