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Scientists have developed a cryogenic XPS technique that preserves battery interfaces in their pristine state. The method reveals a strong correlation between inorganic-rich SEI content and battery performance across multiple electrolyte formulations.

Revolutionary Cryogenic Technique Preserves Battery Interface Chemistry

Researchers at Stanford University have developed a breakthrough cryogenic X-ray photoelectron spectroscopy (cryo-XPS) method that maintains battery interfaces in their pristine state, according to recent reports published in Nature. The technique reportedly overcomes long-standing limitations of conventional room-temperature XPS analysis, which sources indicate can cause irreversible chemical changes and species volatilization under ultra-high vacuum conditions.