Lithium orthosilicate explained

Lithium orthosilicate is a compound with the chemical formula Li₄SiO₄. It is a white ceramic compound, which melts congruently at a temperature of 1258C.^[1]

Lithium orthosilicate is of primary interest towards carbon dioxide capture, as this compound reacts with CO₂ at elevated temperatures to form lithium carbonate, and has been implemented in limited scale in such applications.^[2] Further applications of Li₄SiO₄ include solid electrolytes for lithium-ion batteries, specifically solid state batteries,^[3] and tritium breeding materials, as a component of the breeding blanket for planned fusion energy systems such as ITER.

See also

• Lithium metasilicate  - other lithium silicate compound
• Carbon dioxide scrubber

References

1. Hanaor. D. A. H.. Kolb. M. H. H.. Gan. Y.. Kamlah. M.. Knitter. R.. Solution based synthesis of mixed-phase materials in the Li₂TiO₃-Li₄SiO₄ system . Journal of Nuclear Materials . 2014. 456. 151–161. 10.1016/j.jnucmat.2014.09.028. 1410.7128. 2015JNuM..456..151H. 94426898.
2. https://pubs.rsc.org/en/content/articlelanding/2018/ta/c7ta08738a Optimization of Li4SiO4 synthesis conditions by a solid state method for maximum CO2 capture at high temperature
3. https://iopscience.iop.org/article/10.1149/1.3393851 Thin Film Lithium Battery using Stable Solid Electrolyte Li4SiO4 Fabricated by PLD