Research into next-generation lithium metal batteries that have a solid electrolyte hold out the promise of being high in energy density, low weight, non-flammable, and can be recharged very quickly. But they can short-circuit easily. Andrew Myers writing for the Precourt Institute at Stanford University describes breakthrough experiments that reveal why. The slightest bend, twist, or speck of dust will cause imperceptible crevices in the ceramic … [Read more...]