Stanford researchers make rechargeable batteries that store six times more charge

https://news.stanford.edu/2021/08/25/researchers-make-alkali-metal-chlorine-batteries-rechargeable/

"alkali metal-chlorine batteries... back-and-forth chemical conversion of sodium chloride (Na/Cl2) or lithium chloride (Li/Cl2) to chlorine... one step closer toward achieving two top stated goals... creating a high-performance rechargeable battery that could enable cellphones to be charged only once a week instead of daily and electric vehicles that can travel six times farther without a recharge"