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Inorganics
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Advances in Electrodes and Electrolyte Engineering for High-Performance Zn Batteries...
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Advances in Electrodes and Electrolyte Engineering for High-Performance Zn Batteries and Supercapacitors

A special issue of Inorganics (ISSN 2304-6740). This special issue belongs to the section "Inorganic Materials".

Deadline for manuscript submissions: 30 November 2025 | Viewed by 2862

Special Issue Editors

Dr. Zhixiao Xu

E-Mail Website
Guest Editor
Department of Chemical and Materials Engineering, University of Alberta, 9211-116 Street NW, Edmonton, AB T6G 1H9, Canada
Interests: batteries and supercapacitors; materials physics/chemistry; sustainable materials/energy; catalysis; nanotechnology; carbon; organics; crystal
Special Issues, Collections and Topics in MDPI journals
Dr. Wenjing Deng

E-Mail Website
Guest Editor
Department of Chemical and Materials Engineering, University of Alberta, 9211-116 Street NW, Edmonton, AB T6G 1H9, Canada
Interests: energy storage technology; metal-ion batteries; electrolyte solvation structure; nanomaterials; electrochemical reactions

Special Issue Information

Dear Colleagues,

Zinc-based aqueous energy storage devices offer significant advantages such as high capacity, water compatibility, suitable redox potential, high safety, and low cost, making them highly promising for grid-level energy storage. However, challenges persist in achieving zinc metal reversibility due to issues such as dendritic growth, low Coulombic efficiency (CE), metal corrosion, and hydrogen evolution. Additionally, cathode materials face obstacles such as metal dissolution, poor conductivity, and limited capacity/capacitance in batteries/supercapacitors.

Various strategies have been developed to enhance electrode performance, including surface modification, coating, host construction, crystal facet engineering, separator design, and electrolyte modification. Among these, there is a growing focus on regulating the components and structures of electrolytes (solvent, salt, concentration, etc.) to address existing challenges in zinc-based energy devices. This is crucial as the electrolyte strongly influences factors such as voltage window, ionic conductivity, zinc plating/stripping process, zinc corrosion behavior, and cathode dissolution.

In line with these advancements, we are pleased to announce a Special Issue entitled "Advances in Electrodes and Electrolyte Engineering for High-Performance Zn Batteries and Supercapacitors". This Special Issue aims to showcase the latest developments in this research domain, covering advancements in anode, cathode, and electrolyte engineering towards the realization of advanced zinc batteries and supercapacitors.

Dr. Zhixiao Xu
Dr. Wenjing Deng
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Inorganics is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2200 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • aqueous energy storage
  • zinc batteries
  • zinc supercapacitors
  • electrolyte engineering
  • dendrite-free zinc anode
  • Mn-based cathode
  • V-based cathode
  • cathode dissolution inhibition
  • electrolyte engineering
  • solvation structure

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Published Papers (2 papers)

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12 pages, 2936 KiB  
Article
Binder-Free Metal–Organic Framework-Derived Zn(CN)2/V2O3/Carbon Cathode Fabricated via Electrophoretic Deposition for High-Performance Zn-Ion Batteries
by Hyemin Lee and Byoungnam Park
Inorganics 2025, 13(6), 194; https://doi.org/10.3390/inorganics13060194 - 11 Jun 2025
Abstract
In this study, a Zn(CN)2–V2O3–C composite cathode was synthesized via AC electrophoretic deposition (EPD) and evaluated for application in aqueous zinc-ion batteries (ZIBs). Here, we report for the first time a binder-free Zn(CN)2–V2O [...] Read more.
In this study, a Zn(CN)2–V2O3–C composite cathode was synthesized via AC electrophoretic deposition (EPD) and evaluated for application in aqueous zinc-ion batteries (ZIBs). Here, we report for the first time a binder-free Zn(CN)2–V2O3–C composite cathode, using AC-EPD to create an ultrathin architecture optimized for probing the electrode–electrolyte interface without interference from additives or bulk effects. The composite combines Zn(CN)2 for structural support, V2O3 as the redox-active material, and carbon for improved conductivity. X-ray diffraction confirmed the presence of Zn(CN)2 and V2O3 phases, while scanning electron microscopy revealed a uniform, ultrathin film morphology. Electrochemical analysis demonstrated a hybrid charge storage mechanism with a b-value of 0.64, indicating both capacitive and diffusion-controlled contributions. The electrode delivered a high specific capacity (~250 mAh/g at 500 mA/g) with stable cycling performance. These results highlight the potential of metal–organic framework-derived composites for high-performance ZIB cathodes. The composite is especially effective when prepared via AC-EPD, which yields ultrathin, uniform films with strong adhesion and low agglomeration. This enhances energy storage performance and provides a reliable platform for focusing on interfacial charge storage, excluding the effect of binders on electrochemical performance. Full article
(This article belongs to the Special Issue Advances in Electrodes and Electrolyte Engineering for High-Performance Zn Batteries and Supercapacitors)
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18 pages, 10803 KiB  
Article
Novel NH4V4O10-Reduced Graphene Oxide Cathodes for Zinc-Ion Batteries: Theoretical Predictions and Experimental Validation
by He Lin, Chenfan Liu and Yu Zhang
Inorganics 2024, 12(8), 225; https://doi.org/10.3390/inorganics12080225 - 17 Aug 2024
Viewed by 2069
Abstract
This investigation explores the potential of enhancing aqueous zinc-ion batteries (AZIBs) through the introduction of a novel cathode material, NH4V4O10 (NVO), combined with reduced graphene oxide (rGO). Utilizing Density Functional Theory (DFT), it was hypothesized that the incorporation [...] Read more.
This investigation explores the potential of enhancing aqueous zinc-ion batteries (AZIBs) through the introduction of a novel cathode material, NH4V4O10 (NVO), combined with reduced graphene oxide (rGO). Utilizing Density Functional Theory (DFT), it was hypothesized that the incorporation of rGO would increase the interlayer spacing of NVO and diminish the charge transfer interactions, thus promoting enhanced diffusion of Zn2+ ions. These theoretical predictions were substantiated by experimental data acquired from hydrothermal synthesis, which indicated a marked increase in interlayer spacing. Significantly, the NVO–rGO composite exhibits remarkable cyclic durability, maintaining 95% of its initial specific capacity of 507 mAh g−1 after 600 cycles at a current density of 5 A g−1. The electrochemical performance of NVO–rGO not only surpasses that of pristine NVO but also outperforms the majority of existing vanadium oxide cathode materials reported in the literature. This study underscores the effective integration of theoretical insights and experimental validation, contributing to the advancement of high-performance energy storage technologies. Full article
(This article belongs to the Special Issue Advances in Electrodes and Electrolyte Engineering for High-Performance Zn Batteries and Supercapacitors)
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