What is the basis for Toyota's fluorine battery claims?

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SUMMARY

Toyota is actively researching fluorine batteries, claiming they will achieve seven times the energy density of lithium-ion batteries. This assertion is based on the potential for higher energy storage relative to weight, allowing for longer ranges with significantly lighter batteries. The discussion highlights that while lithium has a higher reduction potential than fluorine, the energy density of a battery is influenced by various factors, including the mass of all components involved in the battery's operation.

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  • Knowledge of lithium-ion and fluorine battery characteristics.
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theycallmevirgo
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TL;DR
Why is Toyota researching Fluorine batteries when LiIon cell potentials are higher?
Google top result says Toyota is researching Fluorine batteries that they claim will have 7x energy density of LiIon. However my textbook table of reduction potential gives lithium as higher than fluorine. Any idea what they base their claims on?

Thanks

Joe
 
Chemistry news on Phys.org
I got that far. My point is how do they achieve this? Simply by virtue of fluorine being gaseous at room temp?
 
Fluorine batteries don't use fluorine for redox, it is just shuffled between anode and cathode.

https://en.wikipedia.org/wiki/Fluoride_battery

Besides, energy density of a battery doesn't depend just on the redox reaction involved, it also needs to take into account mass of every other substance required for a correct operation.
 

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