TY - JOUR
T1 - Nanotube-structured Na2V3O7 as a Cathode Material for Sodium-Ion Batteries with High-rate and Stable Cycle Performances
AU - Tanibata, Naoto
AU - Kondo, Yuki
AU - Yamada, Shohei
AU - Maeda, Masaki
AU - Takeda, Hayami
AU - Nakayama, Masanobu
AU - Asaka, Toru
AU - Kitajou, Ayuko
AU - Okada, Shigeto
N1 - Funding Information:
This work was supported by the “Elements Strategy Initiative to Form Core Research Center” of the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan (Since 2012) and by the “Materials research by Information Integration” Initiative (MI2I) project of the Support Program for Starting Up Innovation Hub from Japan Science and Technology Agency (JST). We also thank the Information Technology Center of Nagoya University for providing computing resources (CX400). Crystal structure diagrams were drawn with Visualization for Electronical and Structural Analysis (VESTA).
Publisher Copyright:
© 2018, The Author(s).
PY - 2018/12/1
Y1 - 2018/12/1
N2 - Sodium ion batteries meet the demand for large-scale energy storage, such as in electric vehicles, due to the material abundance of sodium. In this report, nanotube-type Na2V3O7 is proposed as a cathode material because of its fast sodium diffusivity, an important requirement for sodium ion batteries, through the investigation of ~4300 candidates via a high-throughput computation. High-rate performance was confirmed, showing ~65% capacity retention at a current density of 10C at room temperature, despite the large particle size of >5 μm. A good cycle performance of ca. 94% in capacity retention after 50 cycles was obtained owing to a small volumetric change of <0.4%.
AB - Sodium ion batteries meet the demand for large-scale energy storage, such as in electric vehicles, due to the material abundance of sodium. In this report, nanotube-type Na2V3O7 is proposed as a cathode material because of its fast sodium diffusivity, an important requirement for sodium ion batteries, through the investigation of ~4300 candidates via a high-throughput computation. High-rate performance was confirmed, showing ~65% capacity retention at a current density of 10C at room temperature, despite the large particle size of >5 μm. A good cycle performance of ca. 94% in capacity retention after 50 cycles was obtained owing to a small volumetric change of <0.4%.
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U2 - 10.1038/s41598-018-35608-9
DO - 10.1038/s41598-018-35608-9
M3 - Article
C2 - 30464215
AN - SCOPUS:85056947408
VL - 8
JO - Scientific Reports
JF - Scientific Reports
SN - 2045-2322
IS - 1
M1 - 17199
ER -