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International Journal of Frontiers in Engineering Technology, 2023, 5(5); doi: 10.25236/IJFET.2023.050503.

Status, issues and prospectives of lithium aluminates solid electrolyte including beta alumina in the form of film


Chen Chi

Corresponding Author:
Chen Chi

School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Wuhan, China


Li-Beta alumina exhibited higher ionic conductivity than other lithium aluminate phases of LiAl5O8, LiAlO2 and Li5AlO4 because of the special crystal structure having many conduction channels in c-plane. It is usually used as solid electrolyte in Battery. Compared with bulk and powder, Li-Beta alumina film takes advantages of decrease in area specific resistance, reduction of operating temperature, reduction of size/weight for battery and enhancement of battery cycle life. Laser chemical vapour deposition is used to achieve the first synthesis of Li-Beta alumina in form of film, which exhibits a high conductivity of 5.96 S∙m-1∙K at room temperature. In this process, the remained issue of Li loss is essential to be fixed for large-scale production.


electrical conductivity; beta alumina; crystal structure; film

Cite This Paper

Chen Chi. Status, issues and prospectives of lithium aluminates solid electrolyte including beta alumina in the form of film. International Journal of Frontiers in Engineering Technology (2023), Vol. 5, Issue 5: 16-21. https://doi.org/10.25236/IJFET.2023.050503.


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