Researchers find out why solid-state batteries fail

SHANGHAI — In a significant advancement that could reshape the future of electric vehicles, Chinese researchers have identified a mechanism behind solid-state lithium battery failures.

It came as China has risen to become a global leader in the lithium battery industry. The country is now racing with its international rivals, particularly those from Japan and South Korea, to embrace next-generation battery technologies.

Solid-state batteries, widely regarded as one of the most promising solutions in the coming decade, could revolutionize energy storage. However, overcoming their technical hurdles remains the greatest current challenge. Unlike liquid electrolytes used in conventional batteries, solid electrolytes struggle to absorb the stresses caused by lithium expansion and contraction during charging cycles.