Interface engineering via in-situ electrochemical induced ZnSe for a stabilized zinc metal anode

Wang

et al. 2023

Adv Funct Materials

Aqueous zinc-ion batteries (ZIBs) with metallic Zn anodes have emerged as promising candidates for large-scale energy storage systems due to their inherent safety and competitive capacity. However, challenges of Zn anodes, including dendrite growth and side reactions, impede the commercialization of ZIBs. The regulation of the Zn/electrolyte interphase is a feasible method to achieve high-performance ZIBs with prolonged lifespan and high reversibility. Considering the as-made artificial interphase is the result of a combination of protection materials, protection mechanisms, and construction techniques, this review comprehensively summarizes the recent progress of interphase modulation and provides a systematic guideline for constructing ideal artificial layers. In addition to revealing the entanglement relationship between the failure behaviors of Zn anodes and timely concluding the emerging protection mechanisms for stable Zn/electrolyte interphase, this review also evaluates the constructing techniques in regard of commercialization, including engineering workflow, strength, shortcoming, applicable materials, and protection effect, aiming to pave the way to practical application. Finally, this review presents noteworthy points of ideal artificial layer. It is expected that this review can enlighten researchers to not only explore ideal interphases of Zn anodes for practical application, but also design other metal anodes in aqueous batteries with similar failure behaviors.

Section: Side Reactions (Her and Corrosion)mentioning

confidence: 99%

Section: Issues In Zn Metal Anodesmentioning

confidence: 99%

Section: Issues In Zn Metal Anodesmentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Insights on Artificial Interphases of Zn and Electrolyte: Protection Mechanisms, Constructing Techniques, Applicability, and Prospective

Yang

Wang

et al. 2023

Adv Funct Materials

“…[ 13b ] However, the physically introduced layer may be prone to detachment and exfoliation during prolonged cycling due to poor adhesion. [ 17 ] The large internal resistance and local non‐uniformity [ 18 ] are also nonnegligible. By contrast, in situ Zn 2+ conductive coating is more stable with strong interaction to the Zn anode owing to the self‐termination effect.…”

Section: Introductionmentioning

confidence: 99%

A Heteroanionic Zinc Ion Conductor for Dendrite‐Free Zn Metal Anodes

Zhang

et al. 2023

Advanced Materials

Although zinc‐based batteries are promising candidates for eco‐friendly and cost‐effective energy storage devices, their performance is severely retarded by dendrite formation. As the simplest zinc compounds, zinc chalcogenides, and halides are individually applied as a Zn protection layer due to high zinc ion conductivity. However, the mixed‐anion compounds are not studied, which constrains the Zn2+ diffusion in single‐anion lattices to their own limits. A heteroanionic zinc ion conductor (ZnyO1−xFx) coating layer is designed by in situ growth method with tunable F content and thickness. Strengthened by F aliovalent doping, the Zn2+ conductivity is enhanced within the wurtzite motif for rapid lattice Zn migration. ZnyO1−xFx also affords zincophilic sites for oriented superficial Zn plating to suppress dendrite growth. Therefore, ZnyO1−xFx‐coated anode exhibits a low overpotential of 20.4 mV for 1000 h cycle life at a plating capacity of 1.0 mA h cm−2 during symmetrical cell test. The MnO2//Zn full battery further proves high stability of 169.7 mA h g−1 for 1000 cycles. This work may enlighten the mixed‐anion tuning for high‐performance Zn‐based energy storage devices.

An Artificial Interphase Engineering Simultaneously Suppressing Hydrogen Evolution Reaction and Controlling Zinc Dendrite Growth to Achieve Stable Zinc Metal Anodes

Huang

et al. 2022

Adv Materials Inter

Zinc metal anode, the most promising candidate material for rechargeable aqueous zinc‐ion batteries, has attracted considerable attention due to its abundant resources and low cost. However, hydrogen evolution reaction and uncontrollable zinc dendrite growth on zinc metal anode are the essential issues that strictly limit their practical application. Here, a modified Zn with a titanium nitride (TiN) protective layer (TiN@Zn) using a simple solvent casting approach is developed, which can simultaneously suppress the hydrogen evolution reaction and control the zinc dendrite growth when acting like a protective layer on the Zn anode. In situ differential electrochemical mass spectrometry approach shows that the TiN coating layer can effectively suppress the hydrogen evolution. Additionally, the TiN can offer large Zn nucleation sites, narrowing the Zn nucleation energy barrier, leading to a uniform Zn deposition. Thus, in symmetric cells, the TiN@Zn electrode presents a stable Zn plating/striping (600 h at 1 mA cm−2) and lower potential hysteresis (38 mV), resulting in an improved electrochemical performance for TiN@Zn||MnO2 full cell.