Battery flaw exposed: Why solid-state cells short-circuit under lithium dendrite stress

A Max Planck Institute study found that lithium dendrites can fracture solid ceramic electrolytes by building internal stress, not just by electron leakage.

The cracking mechanism helps explain why solid-state batteries can still develop short circuits.

The work clarifies a major failure mode in battery materials research.

The findings could help engineers design safer, more durable solid-state batteries for phones and electric vehicles.