Toward Batteries that Pack Twice as Much Energy Per Pound

David L. Chandler | MIT News Office
March 8, 2022

A method for stabilizing the interfaces in solid-state lithium-ion batteries opens new possibilities.

In the endless quest to pack more energy into batteries without increasing their weight or volume, one especially promising technology is the solid-state battery. In these batteries, the usual liquid electrolyte that carries charges back and forth between the electrodes is replaced with a solid electrolyte layer. Such batteries could potentially not only deliver twice as much energy for their size, they also could virtually eliminate the fire hazard associated with today’s lithium-ion batteries.