https://cleantechnica.com/2018/12/08/honda-nasa-caltech-claim-fluoride-battery-breakthrough/ https://www.caradvice.com.au/710297/honda-develops-new-fluoride-ion-battery-with-nasa/ Probably years from anything useful, but it does seem hopeful...
Sorry everyone. Need to do a search instead of assuming I have paid attention to what has been going on in this forum.
Don't apologize for having a life! My wife has threatened to join this forum as Mrs. Insightman so she can tell everyone not to keep encouraging me with all the interesting topics here.