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A hidden leak in solids
10 September 2026 at 01:00
Nature Energy, Published online: 10 September 2026; doi:10.1038/s41560-026-02133-3
Solid electrolytes have long been treated as materials that block electronic conduction while enabling fast lithium-ion transport. Two studies now show that residual electronic conductivity can drive self-discharge in solid-state batteries at open circuit, particularly in thin practical cells, and identify the limits needed to ensure long shelf life.
