1、Molecular bridging interface layer engineering for improved stability

Drawing inspiration from this concept, we ingeniously utilize an In-situ chemical grafting methods with amino silane coupling agents (KH-792) to cultivate an ultra-thin interfacial layer on zinc foil surfaces.

2、Interfacial Molecule Engineering Builds Tri‐Functional Bilayer Silane

In this study, a bilayer silane film (SF) is developed with hydrophobic, ion-buffering, and strong interfacial adhesion properties through the precise assembly of silane coupling agents.

3、Zinc Anode Protection via Silane Coupling Agents

The film-forming process of silane coupling agents on the zinc anode surface involves complex chemical reactions, including adsorption, bonding, and desorption steps between the silane coupling agent and atoms on the anode surface.

4、Silane cooperation with Ce2(SO4)3 to efficiently construct a protective

As shown in Fig. 1, an organic–inorganic hybrid SEI composed of zinc hydroxyl sulfate and silanol is in situ formed on the surface of Zn anode, which not only protects the Zn anode against chemical corro-sion, but also provides abundant ion transport channels for uniform Zn deposition.

Highly reversible and stable zinc anodes enabled by a silane self

This result further confirms the successful self-assembly of GPTMS molecules on zinc foils through the Si-O-Zn bonds, and the crosslinking condensation between siloxanes via Si-O-Si will facilitate the formation of a tight self-assembled layer. [33]

Zinc

Herein, a zinc anode interface is prepared by combining sodium alginate (SA) with hydroxyl and carboxyl groups as a binder and zeolite imidazole framework (ZIF-7) as the ion transport channel.

Stable Zinc Anodes Enabled by a Zincophilic Polyanionic Hydrogel Layer

Herein, a polyanionic hydrogel film is introduced as a protective layer on the Zn anode with the assistance of a silane coupling agent (denoted as Zn–SHn). The hydrogel framework with zincophilic –SO 3− functional groups uniformizes the zinc ions flux and transport.

Interfacial Molecule Engineering Builds Tri‐Functional Bilayer Silane

In this study, a bilayer silane film (SF) is developed with hydrophobic, ion‐buffering, and strong interfacial adhesion properties through the precise assembly of silane coupling agents.

Silane cooperation with Ce

As shown in Fig. 1, an organic–inorganic hybrid SEI composed of zinc hydroxyl sulfate and silanol is in situ formed on the surface of Zn anode, which not only protects the Zn anode against chemical corrosion, but also provides abundant ion transport channels for uniform Zn deposition.

Fluorinated silane induced zincophilic

In this study, tridecafluorooctyltriethoxysilane (POTs) is used as electrolyte additives to construct zincophilic-hydrophobic interface, which can separate zinc anode and active water molecules by forming Si-O-Zn bond, and can enrich zinc ions transference paths via zincophilic F-containing groups.

In the manufacturing process of lithium-ion batteries, the quality and performance of anode materials directly affect the overall performance of the battery. Zinc anodes have attracted significant attention due to their high theoretical specific capacity (approximately 670 mAh/g) and low cost. zinc anodes tend to form dendrites during cyclic use, leading to rapid capacity decay and safety hazards. To address these issues, silane coupling agents, as surface-active agents, are widely applied in surface treatments of zinc anodes to enhance their cyclic stability and safety. This paper explores the application and importance of silane coupling agents in zinc anode protection.

Silane coupling agents are organic silicon compounds that interact with atoms on the metal surface, significantly improving the chemical properties of the metal surface and reducing its polarization rate. This effectively suppresses dendrite growth during the charge-discharge cycles of the zinc anode. Additionally, silane coupling agents can enhance the conductivity of the anode material, improve its contact with the electrolyte, and thereby boost the overall performance of the battery.

In lithium-ion batteries, the application of silane coupling agents primarily focuses on surface modification of anode materials. By coating a thin layer of silane coupling agent solution onto the zinc anode surface, a stable interfacial film can be formed. This film effectively isolates direct contact between the zinc anode and the electrolyte, reducing dendrite formation. Meanwhile, the interfacial film slows down the polarization process of the zinc anode, improving its cyclic stability.

The film-forming process of silane coupling agents on the zinc anode surface involves complex chemical reactions, including adsorption, bonding, and desorption steps between the silane coupling agent and atoms on the anode surface. Controlling these steps is critical to achieving optimal film formation. For example, factors such as the concentration, pH, and temperature of the silane coupling agent solution can influence the film-forming process and final outcomes. precise control of these conditions enables effective regulation of the film-forming effects of silane coupling agents on zinc anodes.

The application of silane coupling agents not only improves the cyclic stability of zinc anodes but also enhances battery safety. After treatment with silane coupling agents, a stable interfacial film forms on the zinc anode surface, effectively isolating it from direct contact with the electrolyte and reducing the space for dendrite growth. Additionally, silane coupling agents mitigate the polarization process of the zinc anode, further lowering the risk of internal short circuits within the battery.

Despite the achievements of silane coupling agents in zinc anode protection, their application still faces challenges. For instance, the relatively high cost of silane coupling agents and the specific equipment and conditions required for film formation need consideration. the long-term stability and compatibility of silane coupling agents require further validation. Future research should focus on cost reduction, optimizing film-forming processes, and improving stability and compatibility.

The role of silane coupling agents in protecting zinc anodes in lithium-ion batteries cannot be overlooked. Through in-depth studies and optimization of their film-forming mechanisms, it is有望 (promising) to further enhance the performance and safety of zinc anodes, contributing significantly to the development of lithium-ion batteries.