Duo-fluoride expands solar container battery production capacity

Are fluoride-ion batteries the future of energy storage?

Developing electrochemical high-energy storage systems is of crucial importance toward a green and sustainable energy supply. A promising candidate is fluoride-ion batteries (FIBs), which can deliver a much higher volumetric energy density than lithium-ion batteries.

Is fluoride based technology the next generation of electrochemical storage technology?

Despite the aforementioned limitations, the fluoride based technology represents a candidate for the next generation of electrochemical storage technology. Fluoride shuttling was proposed in 1974 during research on fluoride ionic conductivity of CaF 2 at temperatures ranging from 400 to 500 °C.

What are the benefits of fluorinated battery components?

Finally, the high oxidation stability of fluorinated compounds increases the resistance of the battery to oxidation when operating at high voltages, leading to batteries with improved energy density, a broad electrochemical stability window and associated chemical inertness 9. Fig. 1: Performance benefits of fluorinated battery components.

What is a fluoride battery?

Theoretically, a fluoride battery using a low cost electrode and a liquid electrolyte can have energy densities as high as ~800 mAh/g and ~4800 Wh/L. Fluoride battery technology is in an early stage of development, and as of 2024 there are no commercially available devices.

Are fluorine-donating electrolytes reversible lithium-based batteries?

Chem. Mater. 28, 266–273 (2016). Suo, L. et al. Fluorine-donating electrolytes enable highly reversible 5-V-class Li metal batteries. Proc. Natl Acad. Sci. USA 115, 1156–1161 (2018). Wang, Y. et al. Emerging electrolytes with fluorinated solvents for rechargeable lithium-based batteries. Chem. Soc. Rev. 52, 2713–2763 (2023).

How does fluorination improve battery thermal stability?

Fluorination of the electrolyte enhances battery thermal stability through the introduction of highly stable carbon–fluorine and metal–fluorine bonds, which reduce the reactivity of the electrolyte with electrode materials at elevated temperatures and increase thermal conductivity 28.