A tight squeeze could fix the biggest hurdle for solid-state car and gadget batteries

SLAC and Stanford researchers found that continuous mechanical compression can redirect dendrites in solid-state batteries and prevent short circuits.

X-ray imaging showed dendrites begin in internal pores and defects, while a heated shape-memory alloy ring guided them horizontally through the electrolyte.

The approach could improve battery durability and commercial viability without requiring completely defect-free ceramic electrolytes.