High stable post-spinel NaMn2O4 cathode of sodium ion battery

Xizheng Liu; Xi Wang; Akira Iyo; Haijun Yu; De Li; Haoshen Zhou

doi:10.1039/C4TA03349C

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High stable post-spinel NaMn₂O₄ cathode of sodium ion battery†

Xizheng Liu,^a Xi Wang,^b Akira Iyo,^c Haijun Yu,^a De Li^a and Haoshen Zhou*^ad

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* Corresponding authors

^a Energy Technology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Japan
E-mail: hs.zhou@aist.go.jp
Fax: +81-29-861-3489
Tel: +81-29-861-5795

^b International Center for Young Scientists (ICYS), World Premier International (WPI) Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan

^c Electronics and Photonics Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Umezono 1-1-1, Tsukuba, Japan

^d National Laboratory of Solid State Microstructures, Department of Energy Science and Engineering, Nanjing University, Nanjing, P. R. China

Abstract

A spinel-type NaMn₂O₄ based on an inventive manganese and sodium compound has been synthesized under high pressure (4.5 GPa) for use as the cathode of a sodium ion battery. It exhibits a one-step voltage profile, limited polarization and good capacity retention both at room and high temperatures. The capacity retention is 94% after 200 cycles at room temperature. The stable battery performance is due to the high barrier of structure rearrangement and suppressed Jahn–Teller distortions in this post spinel structure.

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Article information

DOI: https://doi.org/10.1039/C4TA03349C
Article type: Communication
Submitted: 01 Jul 2014
Accepted: 23 Jul 2014
First published: 23 Jul 2014

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J. Mater. Chem. A, 2014,2, 14822-14826

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High stable post-spinel NaMn₂O₄ cathode of sodium ion battery

X. Liu, X. Wang, A. Iyo, H. Yu, D. Li and H. Zhou, J. Mater. Chem. A, 2014, 2, 14822 DOI: 10.1039/C4TA03349C

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Journal of Materials Chemistry A