Electrochemical and thermal properties of P2-type Na2/3Fe 1/3Mn2/3O2 for Na-ion batteries

Jie Zhao; Jing Xu; Dae Hoe Lee; Nikolay Dimov; Ying Shirley Meng; Shigeto Okada

doi:10.1016/j.jpowsour.2014.04.048

Electrochemical and thermal properties of P2-type Na_2/3Fe _1/3Mn_2/3O₂ for Na-ion batteries

Jie Zhao, Jing Xu, Dae Hoe Lee, Nikolay Dimov, Ying Shirley Meng, Shigeto Okada

Department of Advanced Device Materials

Research output: Contribution to journal › Article › peer-review

93 Citations (Scopus)

Abstract

P2-type Na_2/3Fe_1/3Mn_2/3O₂ was prepared by means of solid-state reaction. Its electrochemical properties as a cathode for sodium-ion batteries were investigated in the 1.5-4.3 V range vs. Na metal. This material delivers an initial discharge capacity as high as 193 mAh/g and maintains 153 mAh/g in 40 cycles. Such a high reversible capacity is achieved because both Mn³⁺/Mn⁴⁺ and Fe³⁺/ Fe⁴⁺ become active in the studied voltage range, as confirmed by X-ray absorption spectroscopy (XAS). The thermal stability of charged cathodes was investigated by differential scanning calorimetry (DSC). Although the total heat generated by the fully charged Na_0.25Fe_1/3Mn _2/3O₂ is larger than that of the Li_0.5CoO ₂ used as a reference, it is remarkably stable up to ca. 320 °C.

Original language	English
Pages (from-to)	235-239
Number of pages	5
Journal	Journal of Power Sources
Volume	264
DOIs	https://doi.org/10.1016/j.jpowsour.2014.04.048
Publication status	Published - Oct 15 2014

All Science Journal Classification (ASJC) codes

Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.jpowsour.2014.04.048

Cite this

@article{bf6569a02fd84fa3b0d53a82521d5fdd,

title = "Electrochemical and thermal properties of P2-type Na2/3Fe 1/3Mn2/3O2 for Na-ion batteries",

abstract = "P2-type Na2/3Fe1/3Mn2/3O2 was prepared by means of solid-state reaction. Its electrochemical properties as a cathode for sodium-ion batteries were investigated in the 1.5-4.3 V range vs. Na metal. This material delivers an initial discharge capacity as high as 193 mAh/g and maintains 153 mAh/g in 40 cycles. Such a high reversible capacity is achieved because both Mn3+/Mn4+ and Fe3+/ Fe4+ become active in the studied voltage range, as confirmed by X-ray absorption spectroscopy (XAS). The thermal stability of charged cathodes was investigated by differential scanning calorimetry (DSC). Although the total heat generated by the fully charged Na0.25Fe1/3Mn 2/3O2 is larger than that of the Li0.5CoO 2 used as a reference, it is remarkably stable up to ca. 320 °C.",

author = "Jie Zhao and Jing Xu and Lee, {Dae Hoe} and Nikolay Dimov and Meng, {Ying Shirley} and Shigeto Okada",

note = "Funding Information: This research was financially supported by the Elements Science & Technology Projects of MEXT. The authors acknowledge the support by the National Science Foundation under Award Number 1057170. The synchrotron X-ray absorption spectra were collected at Argonne National Laboratory on beamline 20-BM through the general user proposal.",

year = "2014",

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doi = "10.1016/j.jpowsour.2014.04.048",

language = "English",

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T1 - Electrochemical and thermal properties of P2-type Na2/3Fe 1/3Mn2/3O2 for Na-ion batteries

AU - Zhao, Jie

AU - Xu, Jing

AU - Lee, Dae Hoe

AU - Dimov, Nikolay

AU - Meng, Ying Shirley

AU - Okada, Shigeto

N1 - Funding Information: This research was financially supported by the Elements Science & Technology Projects of MEXT. The authors acknowledge the support by the National Science Foundation under Award Number 1057170. The synchrotron X-ray absorption spectra were collected at Argonne National Laboratory on beamline 20-BM through the general user proposal.

PY - 2014/10/15

Y1 - 2014/10/15

N2 - P2-type Na2/3Fe1/3Mn2/3O2 was prepared by means of solid-state reaction. Its electrochemical properties as a cathode for sodium-ion batteries were investigated in the 1.5-4.3 V range vs. Na metal. This material delivers an initial discharge capacity as high as 193 mAh/g and maintains 153 mAh/g in 40 cycles. Such a high reversible capacity is achieved because both Mn3+/Mn4+ and Fe3+/ Fe4+ become active in the studied voltage range, as confirmed by X-ray absorption spectroscopy (XAS). The thermal stability of charged cathodes was investigated by differential scanning calorimetry (DSC). Although the total heat generated by the fully charged Na0.25Fe1/3Mn 2/3O2 is larger than that of the Li0.5CoO 2 used as a reference, it is remarkably stable up to ca. 320 °C.

AB - P2-type Na2/3Fe1/3Mn2/3O2 was prepared by means of solid-state reaction. Its electrochemical properties as a cathode for sodium-ion batteries were investigated in the 1.5-4.3 V range vs. Na metal. This material delivers an initial discharge capacity as high as 193 mAh/g and maintains 153 mAh/g in 40 cycles. Such a high reversible capacity is achieved because both Mn3+/Mn4+ and Fe3+/ Fe4+ become active in the studied voltage range, as confirmed by X-ray absorption spectroscopy (XAS). The thermal stability of charged cathodes was investigated by differential scanning calorimetry (DSC). Although the total heat generated by the fully charged Na0.25Fe1/3Mn 2/3O2 is larger than that of the Li0.5CoO 2 used as a reference, it is remarkably stable up to ca. 320 °C.

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