Molten Salt Energy Storage

Pioneer in Advanced Energy Storage

Changing the future of energy in Singapore

Here are the advantages and disadvantages of current storage technology.

The holy grail right now is the Lithium-ion battery but has some drawbacks, with the notable one being expensive raw materials.

Here is the comparison between the 2 batteries [1].

Working Principle

The inner workings

Here, we present some key features of our battery [2]:

1. Anode → Ni/NiCl2

2. Cathode → Graphite

3. Key ions → AlCl4 , Al2Cl7

4. Electrolytes → AlCl3-NaCl-KCl-LiCl

Intercalation Reactions

AlCl4 , Al2Cl7 will be intercalated within the graphite anode during the charging phase.

[2] Intercalation is preferred as...

1) Minimizes volume change

2) Reduces mechanical strain

during repeated insertion and extraction of alkali ions.

References

[1] Li, M. M., Zhan, X., Polikarpov, E., Canfield, N. L., Engelhard, M. H., Weller, J. M., Reed, D. M., Sprenkle, V. L., & Li, G. (2022). A freeze-thaw molten salt battery for seasonal storage. Cell Reports Physical Science, 3(4), 100821. https://doi.org/10.1016/j.xcrp.2022.100821

[2] Zhang, W., Liao, C., & Ning, X. (2022). An advanced ni–graphite molten salt battery with 95 °C operating temperature for energy storage application. Chemical Engineering Journal, 435, 135110. https://doi.org/10.1016/j.cej.2022.135110

Images taken from:

The above papers

https://chem.libretexts.org/Bookshelves/Inorganic_Chemistry/Book%3A_Introduction_to_Inorganic_Chemistry_(Wikibook)/08%3A_Ionic_and_Covalent_Solids_-_Structures/8.05%3A_Layered_Structures_and_Intercalation_Reactions