The constraints of lithium-ion batteries are well-known at this level, so quite a lot of automakers are exploring options equivalent to lithium-air expertise.
Honda is taking a distinct method as their scientists have teamed up with researchers from the California Institute of Know-how and NASA’s Jet Propulsion Laboratory to develop a brand new battery chemistry that guarantees to be a major enchancment over present battery expertise.
Whereas the small print will most likely make your eyes glaze over, Honda says the analysis paves the way in which for “excessive energy-density batteries able to assembly quickly rising vitality storage wants by overcoming the present temperature limitations of fluoride-based battery expertise and by demonstrating the room-temperature operation of fluoride-ion based mostly vitality cells.”
Placing apart the science mumbo jumbo for a minute, the chief scientist of the Honda Analysis Institute mentioned “Fluoride-ion batteries supply a promising new battery chemistry with as much as ten instances extra vitality density than at present accessible lithium batteries.” That’s an enormous enchancment and fluoride-ion batteries have the potential to be considerably lighter than lithium-ion batteries whereas additionally delivering a vastly improved vary when utilized in electrical automobiles.
Dr. Christopher Brooks additionally famous fluoride-ion batteries are safer than lithium-ion batteries as they don’t undergo from overheating points. Moreover, the batteries are extra environmentally pleasant than right now’s lithium-ion batteries.
After all, fluoride-ion batteries have their drawbacks as Honda famous present solid-state fluoride ion-conducting batteries have to function at temperatures above 302 F° (150° C) to make the electrolyte fluoride-conducting. This has been a “important problem,” however the analysis workforce discovered a option to create a fluoride-ion electrochemical cell able to working at room temperature.
Honda says this breakthrough was achieved through the use of a “chemically secure liquid fluoride-conducting electrolyte with excessive ionic conductivity and a large working voltage.” The scientists additionally developed a singular electrolyte utilizing “dry tetraalkylammonium fluoride salts dissolved in an natural, fluorinated ether solvent.” That is paired with a composite cathode which encompasses a core-shell nanostructure made from copper, lanthanum and fluorine. Because of this setup, the researchers have been capable of efficiently show reversible electrochemical biking at room temperature.