Macromolecules Promoting Robust Zinc Anode by Synergistic Coordination Effect and Charge Redistribution.

Zn dendrite formation is the main obstacle to commercializing aqueous zinc-ion batteries (ZIBs). α-cyclodextrin (α-CD) is proposed as an environmentally friendly macromolecule additive in the ZnSO -based electrolyte to obtain stable and reversible Zn anodes. The results show that α-CD molecules' unique 3D structure can effectively regulate the mass transfer of the electrolyte components and isolate the Zn anode from H O molecules.

Accelerated redox conversion of an advanced Zn//Fe-CoO battery by heteroatom doping.

Herein, Fe-doped CoO (Fe-CoO) was prepared to solve the issues of poor electrical conductivity and the lack of active sites in CoO materials. Due to having similar radius and physical/chemical properties to Co, Fe is an ideal choice for doping CoO, as it can improve intrinsic conductivity without causing severe lattice distortion. Oxygen vacancies are gradually formed as doping reactions occur to maintain electric neutrality.

Zinc Anode for Mild Aqueous Zinc-Ion Batteries: Challenges, Strategies, and Perspectives.

The rapid advance of mild aqueous zinc-ion batteries (ZIBs) is driving the development of the energy storage system market. But the thorny issues of Zn anodes, mainly including dendrite growth, hydrogen evolution, and corrosion, severely reduce the performance of ZIBs. To commercialize ZIBs, researchers must overcome formidable challenges.