Journal
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
Volume 38, Issue 4, Pages 2145-2151Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jeurceramsoc.2017.10.046
Keywords
Degradation; Mullite; Li-ion battery cathode materials; Li(NixCoyMnz)O-2
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Funding
- National Natural Science Foundation of China [51372230, 51572244, U1604252]
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Used mullite-based saggars from a Li(NixCoyMnz)O-2 (LNCM) materials-making plant were collected to characterize the degradation occurring during application. Based on the post-mortem analysis, laboratory scale experiments were designed using mixtures of mullite powders and commercial Li-ion battery cathode precursors. The mixtures were calcined at temperatures ranging from 800 degrees C to 1100 degrees C, and characterized with X-ray diffraction and scanning electron microscopy. The influence of temperature on the interactions between mullite and LNCM materials was determined. The combination of the post-mortem study and the laboratory scale tests allowed a more comprehensive understanding of the evolution of the saggar microstructure during degradation.
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