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Na 2 Ti 6 O 13 Nanorods with Dominant Large Interlayer Spacing Exposed Facet for High‐Performance Na‐Ion Batteries
Author(s) -
Cao Kangzhe,
Jiao Lifang,
Pang Wei Kong,
Liu Huiqiao,
Zhou Tengfei,
Guo Zaiping,
Wang Yijing,
Yuan Huatang
Publication year - 2016
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201600845
Subject(s) - nanorod , materials science , anode , electrochemistry , facet (psychology) , ion , chemical engineering , nanotechnology , electrode , chemistry , psychology , social psychology , organic chemistry , personality , engineering , big five personality traits
As the delegate of tunnel structure sodium titanates, Na 2 Ti 6 O 13 nanorods with dominant large interlayer spacing exposed facet are prepared. The exposed large interlayers provide facile channels for Na + insertion and extraction when this material is used as anode for Na‐ion batteries (NIBs). After an activation process, this NIB anode achieves a high specific capacity (a capacity of 172 mAh g −1 at 0.1 A g −1 ) and outstanding cycling stability (a capacity of 109 mAh g −1 after 2800 cycles at 1 A g −1 ), showing its promising application on large‐scale energy storage systems. Furthermore, the electrochemical and structural characterization reveals that the expanded interlayer spacings should be in charge of the activation process, including the enhanced kinetics, the lowered apparent activation energy, and the increased capacity.