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Thermophysical Characterization of a Layered P2 Type Structure Na₀.₅₃MnO₂Cathode Material for Sodium Ion Batteries

Mohsin, Ijaz Ul; Ziebert, Carlos; Rohde, Magnus; Seifert, Hans Jürgen

Abstract:
Over the last decade, the demand for safer batteries with excellent performance and lowercosts has been intensively increasing. The abundantly available precursors and environmentalfriendliness are generating more and more interest in sodium ion batteries (SIBs), especially becauseof the lower material costs compared to Li-ion batteries. Therefore, significant efforts are beingdedicated to investigating new cathode materials for SIBs. Since the thermal characterization ofcathode materials is one of the key factors for designing safe batteries, the thermophysical propertiesof a commercial layered P2 type structure Na0.53MnO2cathode material in powder form weremeasured in the temperature range between−20 and 1200◦C by differential scanning calorimetry(DSC), laser flash analysis (LFA), and thermogravimetry (TG). The thermogravimetry (TG) wascombined with mass spectrometry (MS) to study the thermal decomposition of the cathode materialwith respect to the evolved gas analysis (EGA) and was performed from room temperature up to1200◦C. The specific heat (Cp) and the thermal diffusivity (α) were measured up to 400◦C becausebeyond this temperature, the cathode material starts to decompose. ... mehr

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Verlagsausgabe §
DOI: 10.5445/IR/1000130262
Veröffentlicht am 05.03.2021
Originalveröffentlichung
DOI: 10.3390/batteries7010016
Cover der Publikation
Zugehörige Institution(en) am KIT Post Lithium Storage (POLiS)
Institut für Angewandte Materialien - Angewandte Werkstoffphysik (IAM-AWP)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2021
Sprache Englisch
Identifikator ISSN: 2313-0105
KITopen-ID: 1000130262
Erschienen in Batteries
Verlag MDPI
Band 7
Heft 1
Seiten Article no: 16
Vorab online veröffentlicht am 01.03.2021
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