Likely to emerge by 2030, this new battery would offer seven times more energy density than conventional lithium-ion cells.
While it is not one of the pioneers of the electric car, the Japanese group Toyota is counting on new cell technologies to catch up. Together with scientists from the University of Tokyo, the manufacturer is working on the development of a new “solid” battery. Lithium-free and called FIB (Fluoride-Ion Battery), this new technology would be based on an anode made up of fluorine, copper and cobalt and on a cathode mainly made up of lanthanum. A new chemistry which announces an energy density seven times higher than that of current lithium-ion cells. The result: for the same volume, it will be possible to carry much more energy. Applied to the field of electric cars, this technology could lead to ranges of around 1000 km.
While performance is promising on paper, this new battery technology has a big flaw. Like Bolloré LMP batteries, FIB batteries are “hot”. They need to go above 150 ° C for the electrolyte to become conductive. A problem that Toyota and Kyoto University are working on by experimenting with new combinations of materials. The challenge is delicate because warming up involves additional energy consumption and is complicated to manage on a daily basis. In 2018, Honda and NASA succeeded in developing an FIB cell capable of operating in ambient air. Only downside: its life was limited to … 7 cycles.
It remains to be seen when these new batteries will reach maturity to enter an industrial phase. According to Nikkei, it probably won’t be until 2030.