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Thermochemical Investigations of LiNixMnxCo1-2xO2 (0≤x≤0.5) Phases (NMC)

Ziebert, Carlos; Masoumi, Maryam; Cupid, Damian M.; Reichmann, Thomas L.; Seifert, Hans Jürgen

Abstract (englisch):
Phases from the LiNixMnxCo1-2xO2 series (0≤x≤0.5) including NMC111 and NMC442 are considered as important layered cathode materials for lithium-ion batteries. The enthalpies of formation from oxides and oxygen and from elements of samples in this series with e.g. x = 0, 1/6, 1/3, 0.4, and 0.5, respectively, were determined using high temperature oxide melt drop solution calorimetry. We show that the investigated NMC phases are energetically more stable than LiCoO2. This is in agreement with better electrochemical cycling performance of Ni/Mn-rich compounds at higher voltages.

Zugehörige Institution(en) am KIT Institut für Angewandte Materialien - Angewandte Werkstoffphysik (IAM-AWP)
Publikationstyp Vortrag
Jahr 2017
Sprache Englisch
Identifikator KITopen ID: 1000079093
HGF-Programm 37.01.02; LK 01
Erschienen in 13th Annual Lithium Battery Materials & Chemistries, Arlington, VA, USA, 31. October - 1. November 2017
Projektinformation SPP 1473 (DFG, DFG KOORD, SE 647/15-2)
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