Tests reported by the University of Surrey state that keeping water in the nanostructured sodium vanadate hydrate (NVOH) cathode delivered ~280 mAh g⁻¹ at low rate, ~70 mAh g⁻¹ in a full cell at 100 mA g⁻¹, and stable operation across hundreds of cycles, with additional trials in NaCl solution enabling electrochemical desalination. Photo Source: University of Surrey

Water-In Cathode Lifts Sodium-Ion Capacity Past 250 mAh/g—“Completely Unexpected,” Says Surrey

Keeping Water In: The Simple Trick Boosting Sodium‑Ion Battery Performance Scientists at the University of Surrey reported that retaining water within sodium vanadium oxide – forming nanostructured sodium vanadate hydrate (NVOH) – delivers higher capacity and fast charging, and even operates in salt water for electrochemical desalination. Full details appear in the Journal of Materials Chemistry A and the University of Surrey press release. Sodium‑ion • NVOH • Desalination Feature image: University

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Cryo-XPS freezes lithium metal cells at −200 °C and keeps analysis near −165 °F to limit X-ray-induced changes, revealing a strong link between lithium oxide in the protective layer and better charge retention while correcting overestimation of lithium fluoride. Photo Source: Stanford Report — “New observation method improves outlook for lithium metal battery,” credit: Bill Rivard (All rights reserved).

Stanford Freezes Batteries To −200°C: Cryo-XPS Finds Real SEI Chemistry, LiF Overstated In Warm Tests

Battery Tech New Freezing Method Reveals True Chemistry of Lithium Metal Batteries Cryo‑XPS flash‑freezes cells before X‑ray photoelectron spectroscopy, preserving the lithium anode interface for a more faithful read‑out of surface chemistry. 📍 Stanford University • Source: Stanford News Feature image: Sample holder with an anode prepared for cryo‑XPS analysis. Credit: Ajay Ravi / Stanford.

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