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Article

Thermophysical Characterization of a Layered P2 Type Structure Na0.53MnO2 Cathode Material for Sodium Ion Batteries

Karlsruhe Institute of Technology, Institute for Applied Materials-Applied Materials Physics, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
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Author to whom correspondence should be addressed.
Academic Editor: Carolina Rosero-Navarro
Received: 28 January 2021 / Revised: 17 February 2021 / Accepted: 18 February 2021 / Published: 1 March 2021
Over the last decade, the demand for safer batteries with excellent performance and lower costs has been intensively increasing. The abundantly available precursors and environmental friendliness are generating more and more interest in sodium ion batteries (SIBs), especially because of the lower material costs compared to Li-ion batteries. Therefore, significant efforts are being dedicated to investigating new cathode materials for SIBs. Since the thermal characterization of cathode materials is one of the key factors for designing safe batteries, the thermophysical properties of a commercial layered P2 type structure Na0.53MnO2 cathode material in powder form were measured in the temperature range between −20 and 1200 °C by differential scanning calorimetry (DSC), laser flash analysis (LFA), and thermogravimetry (TG). The thermogravimetry (TG) was combined with mass spectrometry (MS) to study the thermal decomposition of the cathode material with respect to the evolved gas analysis (EGA) and was performed from room temperature up to 1200 °C. The specific heat (Cp) and the thermal diffusivity (α) were measured up to 400 °C because beyond this temperature, the cathode material starts to decompose. The thermal conductivity (λ) as a function of temperature was calculated from the thermal diffusivity, the specific heat capacity, and the density. Such thermophysical data are highly relevant and important for thermal simulation studies, thermal management, and the mitigation of thermal runaway. View Full-Text
Keywords: thermophysical data; sodium ion battery; degradation; thermal decomposition thermophysical data; sodium ion battery; degradation; thermal decomposition
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MDPI and ACS Style

Mohsin, I.U.; Ziebert, C.; Rohde, M.; Seifert, H.J. Thermophysical Characterization of a Layered P2 Type Structure Na0.53MnO2 Cathode Material for Sodium Ion Batteries. Batteries 2021, 7, 16. https://0-doi-org.brum.beds.ac.uk/10.3390/batteries7010016

AMA Style

Mohsin IU, Ziebert C, Rohde M, Seifert HJ. Thermophysical Characterization of a Layered P2 Type Structure Na0.53MnO2 Cathode Material for Sodium Ion Batteries. Batteries. 2021; 7(1):16. https://0-doi-org.brum.beds.ac.uk/10.3390/batteries7010016

Chicago/Turabian Style

Mohsin, Ijaz U., Carlos Ziebert, Magnus Rohde, and Hans J. Seifert 2021. "Thermophysical Characterization of a Layered P2 Type Structure Na0.53MnO2 Cathode Material for Sodium Ion Batteries" Batteries 7, no. 1: 16. https://0-doi-org.brum.beds.ac.uk/10.3390/batteries7010016

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