Multifunctional SEI-like structure coating stabilizing Zn anodes at a large current and capacity

Abstract

The development and application of aqueous zinc-ion batteries still face some obstacles, such as dendrite growth and side reactions triggered by active water. Here, we constructed PVA@SR-ZnMoO4 multifunctional coating on...

3D Artificial Array Interface Engineering Enabling Dendrite-Free Stable Zn Metal Anode

“…2a). The inhibition of hydrogen evolution reaction (HER) is mainly due to the reduction of direct contact between water molecules in the electrolyte and zinc anode by 3D MXene array interface coating [35][36][37]. In addition, the Tafel spectra shows that the 3D MXene array@Zn has a higher corrosion potential of − 0.846 V than that of pure Zn anode (− 0.851 V), indicating a lower corrosion reactivity and a lower corrosion rate (Fig.…”

Trace Amounts of Triple-Functional Additives Enable Reversible Aqueous Zinc-Ion Batteries from a Comprehensive Perspective

“…For instance, cationic additives such as TBA + , Li + , and Sc 3+ were introduced into electrolytes, in which cations preferentially adsorbed on the Zn anode surface, providing a shielding effect to homogenize electric field and suppress dendrite growth [ 20 – 22 ]. Building an artificial solid electrolyte interphase (SEI) has been considered as another effective remedy to alleviate side reactions [ 23 – 27 ]. For example, various SEIs including COFs, poly(vinyl butyral), and zinc silicate have been coated on Zn anode surface to block the direct chemical or electrochemical reactions between Zn anode and electrolyte [ 28 – 30 ].…”

Electron transmission matrix and anion regulation strategy-derived oxygen-deficient δ-MnO2 for a high-rate and long-life aqueous zinc-ion battery

“…Rechargeable aqueous zinc ion batteries (AZIBs) have attracted wide attention owing to their simple preparation process, abundant zinc metal resources, high theoretical capacity, intrinsic safety, and remarkable reversibility in aqueous electrolytes. [6][7][8][9][10][11][12] Mn-based materials, [13][14][15][16] Prussian blue analogues (PBAs), [17][18][19] V-based materials, [20][21][22][23][24] and organic-based materials [25][26][27] are promising candidates for AZIB cathodes, in which manganese oxides have been considered as the energy storage materials with the most potential. Due to the high working voltage, large specific capacity, abundant resource reserves, and unique layered structure, δ-MnO 2 has been widely investigated as a cathode for AZIBs.…”