| Title | Chemical Reaction between Potassium Aluminosilicates and Aggregates at Different Temperatures |
| Thematic area | Basic Science |
| Presenter | Mr. Yiming Yin |
| Authors | Mr. Yiming Yin, Zhengzhou University, Zhengzhou - China Mr. Ye Li, Zhengzhou University, Zhengzhou - China Prof. Suping Li, Zhengzhou University, Zhengzhou - China Mr. Pengtao Zhai, Zhengzhou University, Zhengzhou - China Mr. Liugang Chen, Zhengzhou University, Zhengzhou - China Mr. Guotian Ye, Zhengzhou University, Zhengzhou - China |
|
Abstract
Kalsilite/kaliophilite (KAlSiO4, KAS) could be used in saggars for the calcination of Li(NixCoyMnz)O2 ternary battery materials because kalsilite has high melting point (1750°C) and could be chemically resistant to such ternary battery materials. However, the compatibility of KAS with the commonly used aggregates in the saggars is not clear. In this work, KAS was synthesized using potassium carbonate (K2CO3), silica and alumina. Then the as-synthesized KAS fine powder was mixed with four kinds of aggregates (alumina, mullite, cordierite and magnesia-alumina spinel) respectively. The mixtures were fired at temperatures between 700°C and 1200°C and subsequently examined by means of XRD and SEM to investigate the reaction between the KAS fine powder and various aggregates. |
|