Reducing the Surface Tension of Zn Anodes by an Abietic Acid Layer for High Redox Kinetics and Reversibility

Chen, Huige; Wang, Huashan; Li, Jiashuai; Fei, Bin; Wang, Ziqi

doi:10.1021/acsami.3c00274

Cited by 3 publications

(3 citation statements)

References 33 publications

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“…This represents a significant suppression of side reactions such as corrosion caused by highly reactive H 2 O at low temperatures, which in turn improves Zn/electrolyte interface stability. [ 29 ] Zn/NASHE‐0.5/Cu asymmetric battery shows a similar pattern, with high CE values and good long‐cycling stability at low temperature (Figure 6d). NASHE‐0.7 and NASHE‐0.9 are failed to cycle at −20 °C (Figure S28, Supporting Information).…”

Section: Resultsmentioning

confidence: 74%

Component Fluctuation Modulated Gelation Effect Enable Temperature Adaptability in Zinc‐Ion Batteries

Ji,

Luo,

Qin

et al. 2024

Advanced Energy Materials

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The active H2O and slow ion kinetics behavior deteriorate the performance of aqueous zinc‐ion batteries at a wide temperature range, even in hydrogel electrolyte. Herein, a component fluctuation modulated gelation effect is applied to optimize Zn2+ solvation structure, realizing a balance between H2O activity limitation and Zn2+ kinetics retention. The as‐prepared hydrogel electrolyte via in situ copolymerization of [2‐(methacryloyloxy)ethyl] dimethyl‐(3‐sulfopropyl) and acrylamide in the electrolyte salt matrix facilitates stable overall performance at both normal and low temperatures. Theoretical calculations and experimental results attest that polymer functional groups exhibit a higher efficacy in substituting bound water in the Zn2+ solvated shell with the polymer content increasement, thereby alleviating water‐associated parasitic reactions. Furthermore, the hydrogel with abundant zwitterionic groups not only interacts with H2O to limit hydrolysis, but also constructs separated ionic migration channels to promote uniform and fast Zn2+ transport. As a result, the hydrogel electrolytes promote stable Zn2+ plating/stripping behaviors over 1050 h and 3000 h at 25 and −20 °C, respectively. The full batteries achieve a capacity retention of 98.8% over 2000 cycles at 25 °C and stably cycle for 600 times at −20 °C. This work yields novel insights into the development and design of hydrogel electrolytes.

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Section: Resultsmentioning

confidence: 74%

Component Fluctuation Modulated Gelation Effect Enable Temperature Adaptability in Zinc‐Ion Batteries

Ji,

Luo,

Qin

et al. 2024

Advanced Energy Materials

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“…To address the aforementioned issues, researchers have conducted extensive work, which can be mainly categorized into three aspects: constructing zinc anode protective layer, − electrolyte optimization, − and separator optimization. − Overall, electrolyte optimization is undoubtedly the simplest and most practical approach, primarily involving the construction of water-in-salt electrolyte (WISE) and the incorporation of various electrolyte additives such as alcohols, sugars, and amino acids . These strategies aim to reconfigure the H-bond network and diminish the water reactivity, thereby suppressing side reactions that affect stability. , Nevertheless, the utilization of WISE and the inclusion of poorly dissociated components unavoidably lead to reduced ionic conductivity, thus undermining the advantage of aqueous electrolytes .…”

Section: Introductionmentioning

confidence: 99%

Integrated Interfacial Modulation Strategy: Trace Sodium Hydroxyethyl Sulfonate Additive for Extended-Life Zn Anode Based on Anion Adsorption and Electrostatic Shield

Chen,

Li,

et al. 2024

ACS Appl. Mater. Interfaces

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Aqueous zinc-ion batteries (AZIBs) are poised to play a pivotal part in meeting the growing demands for energy storage and powering portable electronics for their superior security, affordability, and environmentally friendly characteristics. However, the detrimental side reactions occurring at the zinc anode and the dendrite caused by uneven zinc plating/stripping have greatly compromised the cycling life of AZIBs, thereby impeding their practical prospects. In this study, the interfacial comodulation strategy was employed by combining the "electrostatic shielding" effect of cations with the characteristic adsorption of anions. Two molar ZnSO 4 served as the matrix, and sodium hydroxyethyl sulfonate (SHES) was selected as a low-cost, nontoxic additive. Experimental results confirm that SHES and zinc anode exhibit robust interactions that lead to the formation of an electrostatic shield and a dynamic adsorption layer at the interface, thereby suppressing hydrogen evolution and corrosion. The combined "electrostatic shielding" effect of sodium ions and the robust characteristic adsorption of hydroxyethyl sulfonate anions serve to guide the directed three-dimensional (3D) diffusion of Zn 2+ , facilitating rapid, stable, and uniform deposition of zinc. Due to these effects, incorporating 0.2 M SHES as an additive extends the cycle life beyond 3600 h and enables a highly reversible process of deposition and stripping in symmetric cells. Additionally, the Zn−Cu half-cell exhibits reliable cycling for over 1400 cycles, achieving an average Coulombic efficiency of 99.6%. Moreover, the introduction of this additive substantially enhances the performance of Zn-MnO 2 and Zn-NH 4 V 4 O 10 full cells. This study demonstrates the practical feasibility of achieving anodes with high reversibility in AZIBs through the implementation of a strategy that involves anion adsorption at the interface, which holds paramount significance for the practical application of AZIBs.

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“…Meanwhile, the battery composed of etched Zn-10 anode and PEDOT@V 2 O 5 cathode delivers preferable rate and cycle performance. It is worth noting that the etching agent, K 3 [Fe(CN) 6 ], has a low price (only $0.065 per gram, Figure 1b) [30,32,[36][37][38][39] and low concentration (0.02 m), which greatly reduces the cost and environmental pollution. Further, the use of other metal ions as modified layer ligands can also achieve good zinc deposition behavior, which proves the broad applicability of the organic ligand etching method.…”

Section: Introductionmentioning

confidence: 99%

The Organic Ligand Etching Method for Constructing In Situ Terraced Protective Layer Toward Stable Aqueous Zn Anode

Li,

Yang,

Yuan

et al. 2023

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The stability of aqueous Zn‐ion batteries (AZIBs) is highly dependent on the reversibility of stripping/plating Zn anode. In this work, an organic ligand etching method is proposed to develop a series of in situ multifunctional protective layers on Zn anode. Particularly, the 0.02 m [Fe(CN) 6]3− etching solutions can spontaneously etch the Zn anode, creating an in situ protective layer with unique terraced structure, which blocks the direct contact between the electrode and electrolyte and increases the area for Zn2+ ions deposition. Interestingly, all elements in the organic ligands (i.e., C, N, Zn, and Fe) exhibit strong zincophilic, significantly promoting zinc deposition kinetics and enhancing 3D nucleation behavior to inhibit zinc dendrite growth. As a result, the etched Zn anode can provide as high a Coulombic efficiency of 99.6% over 1000 cycles and sustain over 400 h long‐term stability at a high current density of 10 mA cm−2. As general validation, the small amount of metal cations additives (e.g., Ni2+, Mn2+, and Cu2+) can accelerate the synthesis of artificial interface layers with 3D structures and also regulate zinc deposition behavior. This work provides a new idea from the perspective of etching solution selection for surface modification of Zn metal anode.

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Reducing the Surface Tension of Zn Anodes by an Abietic Acid Layer for High Redox Kinetics and Reversibility

Cited by 3 publications

References 33 publications

Component Fluctuation Modulated Gelation Effect Enable Temperature Adaptability in Zinc‐Ion Batteries

Component Fluctuation Modulated Gelation Effect Enable Temperature Adaptability in Zinc‐Ion Batteries

Integrated Interfacial Modulation Strategy: Trace Sodium Hydroxyethyl Sulfonate Additive for Extended-Life Zn Anode Based on Anion Adsorption and Electrostatic Shield

The Organic Ligand Etching Method for Constructing In Situ Terraced Protective Layer Toward Stable Aqueous Zn Anode

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