Technical editor Dr Mike McDonagh revisits battery technologies that previously held promise. Some were once highly publicised as the answer to high-energy density required for EV batteries, but seem to have faded away decades ago. He asks: Where are they now?
As a battery veteran of more than 50 years in the industry, I have seen quite a few battery technology advances that were hailed as the “next great breakthrough”. Many of these battery designs have gradually faded from public interest and seem to have been confined to history. Some appear at regular intervals with claims that the problems . . .