Trinary nanogradients at electrode/electrolyte interface for lean zinc metal batteries

Electric field distribution regulation of a zinc anode toward long cycle life zinc metal batteries

“…S13†), confirming the enhanced hydrophobicity of zigzag Zn and the enhanced de-solvation kinetics of Zn ions during the plating process. 38–40 Under the influence of the electric field, the Zn ions continuously approach the surface of the Zn anode and remove its surrounding water molecules. The promoted de-solvation process is also confirmed by electrochemical impedance spectroscopy (EIS) measurements, as shown in Fig.…”

Advances of Nanomaterials for High-Efficiency Zn Metal Anodes in Aqueous Zinc-Ion Batteries

“…This facilitates more homogeneous Zn plating/stripping process on the anode surface and restricts the growth of dendrites. Cu is a commonly utilized substrate material for Zn deposition because it has the characteristics of low price, abundant availability, high conductivity, low Zn nucleation overpotential, high stability in aqueous electrolytes, and large contact area. , Xu and co-workers have successfully prepared highly stable 3D Zn anodes by depositing Zn onto chemically etched nanoporous copper skeleton . As depicted in Figure c, the 3D Zn anode with the nano-Cu skeleton exhibits favorable electronic conductivity and substantial adsorption sites, which facilitates the uniform deposition/dissolution of Zn compared to flat Zn foil.…”

Artificial Hydrophilic Organic and Dendrite-Suppressed Inorganic Hybrid Solid Electrolyte Interface Layer for Highly Stable Zinc Anodes

“…In recent years, a series of strategies have been proposed to improve the performance of zinc anodes. − These include the construction of an artificial protective layer for the zinc anode, the design of a three-dimensional (3D) porous structure, and electrolyte engineering. − Among them, the construction of an artificial protective layer for zinc anode is favored because of its simple operation and low cost. − However, most existing protective layers struggle to address all the aforementioned challenges comprehensively, limiting the cycle life of modified zinc anodes and posing hurdles to industrialization. , Consequently, there is an urgent need to design a Solid Electrolyte Interface (SEI) layer for zinc anodes that balances high ionic conductivity and Coulombic efficiency while effectively inhibiting dendrite formation, hydrogen evolution, and corrosion. Such a development could pave the way for long-cycle zinc-ion batteries. − …”