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

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"

Related:

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https://techxplore.com/news/2025-02-additives-high-dipole-moments-aqueous.html

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https://www.eurekalert.org/news-releases/1076823

Non-coordinating charge transfer accelerates Zn2+ desolvation in OHL for stable aqueous Zn batteries
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Solstice's dry cathode with energy density of up to 450Wh/kg
https://www.solstice-battery.eu/technology/

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https://www.rudebaguette.com/en/2025/06/ev-battery-breaks-the-rules-new-cell-retains-80-power-after-500-cycles-and-survives-blistering-350f-heat/