Be careful: For the improvements, are close against some quite fundamental chemistry and physics. E.g., for fast charging, the battery has internal resistance

Be careful: For the improvements, are close against some quite fundamental chemistry and physics. E.g., for fast charging, the battery has internal resistance, that is, gets hot when charging. Likely the amount of internal resistance varies, but charging as fast as filling a 20 gallon tank of gasoline might encounter something impossible due to the chemistry/physics. Fast charging is one of the reasons for the pursuit of capacitors instead of batteries, e.g., the EEStore effort with barium and titanium. The capacitors also typically are able to discharge much faster than batteries. IIRC, battery charging is a chemical reaction where have to move atoms around. A capacitor, first cut, just moves electrons around. But for research time, EEStore has been at it for some years now.