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Advanced Electrode Materials for Energy Storage and Conversion Devices

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Electrochemistry".

Deadline for manuscript submissions: closed (30 April 2025) | Viewed by 3157

Special Issue Editors

Shanghai Key Laboratory of Multidimensional Information Processing, East China Normal University, Shanghai 200241, China
Interests: electrode material desigh for supercapacitors and zinc-ion batteries; electrode surface science; defect engineering; bionic structure
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School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
Interests: nanoarray-based flexible electrodes; metal–organic framework derived materials; solid-state polymer electrolytes for alkali-ion batteries
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
College of Textiles, Donghua University, Shanghai 200051, China
Interests: flexible electrodes; interface chemistry; solid-state fabric devices; electrode analysis
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Electrode materials play a decisive role in almost all electrochemical energy storage devices, determining their overall performance. Advancements in transition metal compounds, carbonaceous materials, and organic polymer materials are revolutionizing the field of electrochemical devices, which include rechargeable batteries and supercapacitors. These devices are essential for a wide range of applications, from portable electronics to electric vehicles and renewable energy systems. Despite extensive research efforts, many of those electrode materials still cannot meet the requirements of practical applications. This Special Issue aims to cover material structural design, surface modification, multi-component hybridization as well as new emerging electrode materials that drive present and future research. Review articles by experts in the field are also strongly encouraged. Researchers are invited to submit their original research and review/perspective articles for publication in this Special Issue. Potential topics include, but are not limited to, the following:

  • Transition metal compounds for supercapacitors and batteries;
  • Carbonaceous materials for supercapacitors and batteries;
  • Organic polymer materials for supercapacitors;
  • MOF and MOF-derived materials for supercapacitors;
  • Material design for supercapacitors and batteries;
  • Electrode surface engineering for supercapacitors and batteries;
  • In situ structural analysis of electrode materials for supercapacitors and batteries;
  • Theoretical analysis of electrode materials for supercapacitors and batteries

Dr. Ling Kang
Dr. Xijun Xu
Dr. Shude Liu
Guest Editors

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Keywords

  • supercapacitors
  • batteries
  • transition metal compounds
  • carbonaceous materials
  • organic polymer materials
  • MOF and MOF-derived materials
  • materials design
  • materials analysis

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Published Papers (2 papers)

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Research

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14 pages, 4650 KiB  
Article
Nickel–Cobalt Layered Double Hydroxide Nanosheet-Decorated 3D Interconnected Porous Ni/SiC Skeleton for Supercapacitor
by Han-Wei Chang, Chia-Hsiang Lee, Shih-Hao Yang, Kuo-Chuang Chiu, Tzu-Yu Liu and Yu-Chen Tsai
Molecules 2024, 29(23), 5664; https://doi.org/10.3390/molecules29235664 - 29 Nov 2024
Cited by 2 | Viewed by 971
Abstract
In this study, a three-dimensional (3D) interconnected porous Ni/SiC skeleton (3D Ni/SiC) was synthesized by binder-free hydrogen bubble template-assisted electrodeposition in an electrolyte containing Ni2+ ions and SiC nanopowders. This 3D Ni/SiC skeleton served as a substrate for directly synthesizing nickel–cobalt layered [...] Read more.
In this study, a three-dimensional (3D) interconnected porous Ni/SiC skeleton (3D Ni/SiC) was synthesized by binder-free hydrogen bubble template-assisted electrodeposition in an electrolyte containing Ni2+ ions and SiC nanopowders. This 3D Ni/SiC skeleton served as a substrate for directly synthesizing nickel–cobalt layered double hydroxide (LDH) nanosheets via electrodeposition, allowing the formation of a nickel–cobalt LDH nanosheet-decorated 3D Ni/SiC skeleton (NiCo@3D Ni/SiC). The multiscale hierarchical structure of NiCo@3D Ni/SiC was attributed to the synergistic interaction between the pseudocapacitor (3D Ni skeleton and Ni–Co LDH) and electrochemical double-layer capacitor (SiC nanopowders). It provided a large specific surface area to expose numerous active Ni and Co sites for Faradaic redox reactions, resulting in an enhanced pseudocapacitance. The as-fabricated NiCo@3D Ni/SiC structure demonstrated excellent rate capability with a high areal capacitance of 1565 mF cm−2 at a current density of 1 mA cm−2. Additionally, symmetrical supercapacitor devices based on this structure successfully powered commercial light-emitting diodes, indicating the potential of as-fabricated NiCo@3D Ni/SiC in practical energy storage applications. Full article
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Review

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31 pages, 13417 KiB  
Review
Interface Issues of Layered Transition Metal Oxide Cathodes for Sodium-Ion Batteries: Current Status, Recent Advances, Strategies, and Prospects
by Yongxin Kuang, Yanxue Wu, Hangyu Zhang and Huapeng Sun
Molecules 2024, 29(24), 5988; https://doi.org/10.3390/molecules29245988 - 19 Dec 2024
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Abstract
Sodium-ion batteries (SIBs) hold significant promise in energy storage devices due to their low cost and abundant resources. Layered transition metal oxide cathodes (NaxTMO2, TM = Ni, Mn, Fe, etc.), owing to their high theoretical capacities and straightforward synthesis [...] Read more.
Sodium-ion batteries (SIBs) hold significant promise in energy storage devices due to their low cost and abundant resources. Layered transition metal oxide cathodes (NaxTMO2, TM = Ni, Mn, Fe, etc.), owing to their high theoretical capacities and straightforward synthesis procedures, are emerging as the most promising cathode materials for SIBs. However, the practical application of the NaxTMO2 cathode is hindered by an unstable interface, causing rapid capacity decay. This work reviewed the critical factors affecting the interfacial stability and degradation mechanisms of NaxTMO2, including air sensitivity and the migration and dissolution of TM ions, which are compounded by the loss of lattice oxygen. Furthermore, the mainstream interface modification approaches for improving electrochemical performance are summarized, including element doping, surface engineering, electrolyte optimization, and so on. Finally, the future developmental directions of these layered NaxTMO2 cathodes are concluded. This review is meant to shed light on the design of superior cathodes for high-performance SIBs. Full article
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