![]() “Water-in-salt” electrolyte enables high-voltage aqueous lithium-ion chemistries. Manipulating the ion-transfer kinetics and interface stability for high-performance zinc metal anodes. Controlling electrochemical growth of metallic zinc electrodes: toward affordable rechargeable energy storage systems. Highly reversible zinc metal anode for aqueous batteries. A metal-organic framework host for highly reversible dendrite-free zinc metal anodes. Zinc anode-compatible in-situ solid electrolyte interphase via cation solvation modulation. Dendrite-free zinc deposition induced by multifunctional CNT frameworks for stable flexible Zn-ion batteries. Hydrogen-free and dendrite‐free all-solid-state Zn-ion batteries. Reversible epitaxial electrodeposition of metals in battery anodes. Lamella-nanostructured eutectic zinc–aluminum alloys as reversible and dendrite-free anodes for aqueous rechargeable batteries. Crossroads in the renaissance of rechargeable aqueous zinc batteries. Electrolyte strategies toward better zinc-ion batteries. Toward practical aqueous zinc-ion batteries for electrochemical energy storage. Sustainability and in situ monitoring in battery development. Our work represents a critical step forward in accelerating the market adoption of zinc batteries as an energy storage system with higher sustainability.īauer, C. Benefiting from the near-unity CE, the pouch cell with a VOPO 4♲H 2O cathode sustains 500 deep cycles without swelling or leaking and delivers an energy density of 100 Wh kg −1 under practical conditions. With extra chloride salts and dimethyl carbonate in concentrated ZnCl 2 electrolyte, the hybrid electrolyte with a unique chemical environment features low Hammett acidity and facilitates the in situ formation of a dual-layered solid electrolyte interphase, protecting zinc anodes from HER and dendrite growth. Here we report a concentrated electrolyte design that eliminates this parasitic reaction and enables a Coulombic efficiency (CE) of 99.95% for Zn plating/stripping measured at a low current density of 0.2 mA cm −2. ![]() However, harnessing this reversible two-electron redox chemistry is plagued by major technical issues, notably hydrogen evolution reaction (HER) at the zinc surface, whose impacts are often not revealed under typical measurement conditions. Rechargeable aqueous zinc batteries are finding their niche in stationary storage applications where safety, cost, scalability and carbon footprint matter most.
0 Comments
Leave a Reply. |