A P2-type Na0.7(Ni0.6Co0.2Mn0.2)O2 cathode with excellent cyclability and rate capability for sodium ion batteries

Jonghyun Choi; Kyeong-Ho Kim; Chul-Ho Jung; Seong-Hyeon Hong

doi:10.1039/C9CC05550A

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A P2-type Na_0.7(Ni_0.6Co_0.2Mn_0.2)O₂ cathode with excellent cyclability and rate capability for sodium ion batteries†

Jonghyun Choi,^a Kyeong-Ho Kim,^a Chul-Ho Jung^a and Seong-Hyeon Hong

*^a

Author affiliations

* Corresponding authors

^a Department of Materials Science and Engineering and Research Institute of Advanced Materials, Seoul National University, Seoul 151-744, Republic of Korea
E-mail: shhong@snu.ac.kr

Abstract

A new P2-type Na_0.7(Ni_0.6Co_0.2Mn_0.2)O₂ was prepared via co-precipitation and its electrochemical properties as a cathode for sodium ion batteries were compared with those of O3-type Na(Ni_0.6Co_0.2Mn_0.2)O₂, focusing on phase stability and cycling performance. The P2-type delivered a high capacity of 108 mA h g⁻¹ after 300 cycles at 2C.

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Article information

DOI: https://doi.org/10.1039/C9CC05550A
Article type: Communication
Submitted: 18 Jul 2019
Accepted: 02 Sep 2019
First published: 02 Sep 2019

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Chem. Commun., 2019,55, 11575-11578

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A P2-type Na_0.7(Ni_0.6Co_0.2Mn_0.2)O₂ cathode with excellent cyclability and rate capability for sodium ion batteries

J. Choi, K. Kim, C. Jung and S. Hong, Chem. Commun., 2019, 55, 11575 DOI: 10.1039/C9CC05550A

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