Exxon Says Graphite Invention Increases EV Battery Life by 30%

Exxon Mobil Corp. said it has invented a new form of graphite that can increase the life of electric-vehicle batteries by as much as 30%.

“We’ve invented a new carbon molecule that will extend the life of the battery by 30%,” Chief Executive Officer Darren Woods said at the University of Texas at Austin’s Energy Symposium on Friday. It’s a “revolutionary step change in battery performance.”

The invention is being tested by several EV manufacturers, Woods said. Used on the anode side of the battery, the synthetic graphite allows for faster charging, a longer lifespan and longer range for electric ...