Zn–SA–PSN hydrogel electrolyte paired with a Prussian blue cathode boosts sodium-zinc aqueous battery efficiency

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https://www.eurekalert.org/news-releases/1071422

"high energy density/ cyclability, scalable... interconnected amide chain/ hydrophilic functional group polymer network... 43 mS·cm⁻¹ ionic conductivity, 2.5 V electrochemical stability window supporting high voltage/ enhanced energy density... > 6000 cycles, 0.0096% capacity decay/ cycle, 25 C current density... stability due to hydrogel electrolyte’s ability to suppress side reactions/ inhibit dendrite growth...  220 Wh·kg⁻¹ energy density, up to 5 C rate performance, also sodium-zinc and zinc-ion compatible"

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