Structure, Electrochemical Properties, and Thermal Stability Studies of Li [ Ni0.2Co0.6Mn0.2 ] O2 Effect of Synthesis Route

作者: J. Jiang , K. W. Eberman , L. J. Krause , J. R. Dahn

DOI: 10.1149/1.1990532

关键词:

摘要: Two Li[Ni 0 . 2 Co 6 Mn ]O samples were synthesized by firing Ni (OH) coprecipitate mixed with either LiOH or Li CO 3 Another two made from 4 1 8 Co(OH) and All single phase X-ray diffraction. The structure electrochemical properties of the compared reactivity four charged x [Ni (4.2 V) electrolyte was examined using accelerating rate calorimetry. show less than Co0 in ethylene carbonate/diethyl carbonate solvent LiPF -based electrolyte. However, shows higher thermal stability , even though particle size latter materials is larger. reasons for this surprising result are explained. Because safety - strongly dependent on x, near = 0, safest those most homogeneously cations.

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