According to the Nikkei Asian Review, a team of researchers from Kyoto University and Toyota Motor experts are now working to develop fluoride-ion batteries that will provide seven times the storage density of lithium-ion batteries. The anode in these batteries consists of fluorine, copper and cobalt compounds, and the cathode is predominantly of lanthanum. The batteries use a solid-state electrolyte, which is more convenient from the point of view of fire safety when used in transport.
If necessary, fluoride-ion batteries (FIBs) will enable the creation of electric vehicles that can travel up to 1000 km without recharging. Skeptics are only confused by the fact that early prototypes of such batteries demonstrated optimal performance at a sufficiently high operating temperature of the electrolyte. On the other hand, researchers have already proven that FIB-batteries can work effectively even at room temperature of the electrolyte. The question is how good they will be at low temperatures, and whether you will need to spend part of the charge on heating the batteries.
Batteries of the new type can also be used for storing electric charge in many other cases: in household power sources and mobile devices. It should be borne in mind that it can take years from the prototyping stage to the appearance of serial batteries. For example, lithium-ion batteries have gone this way in six years. In the case of fluoride-ionic products, experts talk about the possibility of their appearance in serial implementation no earlier than the next decade. Competition with foreign colleagues may become another challenge for Japanese specialists: the United States, China and South Korea in this race have no less chances of becoming pioneers.