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and examine the ash. BLUE COLORS.—These may consist of indigo, logwood, prussian blue or ultramarine. Indigo blue is fixed on cloth in various ways,—1st, in the blue vat; 2nd, as so-called ...

Researchers have developed a new hydrogel electrolyte that, combined with a Prussian blue cathode, enhances sodium-zinc hybrid ion batteries. The design, developed by a team at the China University of ...

The team successfully synthesized a novel hydrogel electrolyte that, when paired with a Prussian blue cathode, achieves outstanding energy density and cyclability in sodium-zinc hybrid ion batteries.