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Electrochemical Materials and Devices for Energy Conversion and Storage—2nd Edition
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Electrochemical Materials and Devices for Energy Conversion and Storage—2nd Edition

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Energy Materials".

Deadline for manuscript submissions: 20 October 2025 | Viewed by 2106

Special Issue Editor

Dr. Bang-An Lu

E-Mail Website
Guest Editor
College of Materials Science and Engineering, Zhengzhou University, Zhengzhou, China
Interests: electrocatalysts; electrocatalytic reaction mechanism; operando/in situ spectroscopy technology; fuel cells
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

With the rapid advancement of society, the excessive use of coal, oil, diesel, and other non-renewable energy sources has led to a severe shortage of traditional fossil fuels. To address this pressing issue, electrochemical energy conversion and storage technologies—such as electrochemical capacitors, batteries, and fuel cells—have garnered significant attention due to their remarkable properties, including high energy and power densities, excellent cyclability, and superior efficiency.

However, these technologies face critical challenges related to cost, sustainability, safety, performance, and durability. To overcome these limitations, researchers have developed innovative electrochemical nanomaterials with advanced structural and functional properties, paving the way for a new generation of energy conversion and storage systems. Furthermore, a fundamental understanding of the formation and evolution of electrochemical interfaces is essential for the rational design of high-performance nanomaterials tailored to electrochemical devices.

This Special Issue aims to highlight recent progress and emerging advancements in electrochemical materials and devices for energy conversion and storage. Topics of interest include, but are not limited to, the following:

  • Precise synthesis and design methods for electrochemical energy materials;
  • Theoretical calculations for electrocatalysts and electrode materials;
  • Advanced electrolytes and membranes for electrochemical energy conversion and storage devices;
  • Advanced electrocatalysts for fuel cells;
  • Advanced materials for supercapacitors;
  • Review articles summarizing the current state of the art in the field of electrochemical energy conversion and storage.

Dr. Bang-An Lu
Guest Editor

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. Materials is an international peer-reviewed open access semimonthly 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 2600 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

  • fuel cells
  • metal–ion batteries
  • flow batteries
  • metal–sulfur (selenium) batteries
  • metal–air batteries
  • supercapacitors
  • electrode materials
  • electrocatalysts
  • membranes
  • electrolytes

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Related Special Issue

Published Papers (3 papers)

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Research

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10 pages, 1211 KB  
Communication
Enhanced Rate Capability in B-Site High-Entropy Perovskite Oxide Ceramics: The Case of La(Co0.2Cr0.2Ni0.2Ga0.2Ge0.2)O3
by Boon-How Mok, Tengfa Yao, Longchao Fu, Cheng-Tsung Lu, Haoxian Ouyang, Zongying Pan and Changan Tian
Materials 2025, 18(17), 3966; https://doi.org/10.3390/ma18173966 - 25 Aug 2025
Viewed by 501
Abstract
This study employed the solid-state method to prepare perovskite-type high-entropy oxide materials La(Co0.2Cr0.2Fe0.2Mn0.2Ni0.2)O3 and La(Co0.2Cr0.2Ni0.2Ga0.2Ge0.2)O3 with equimolar ratios at the B-site [...] Read more.
This study employed the solid-state method to prepare perovskite-type high-entropy oxide materials La(Co0.2Cr0.2Fe0.2Mn0.2Ni0.2)O3 and La(Co0.2Cr0.2Ni0.2Ga0.2Ge0.2)O3 with equimolar ratios at the B-site and explored the effects of sintering temperature on the phase structure and electrochemical properties of high-entropy oxide ceramics. The results show that after sintering at 1300°C, both samples exhibit orthorhombic perovskite structures. Both have a relative density of >97%, while La(Co0.2Cr0.2Ni0.2Ga0.2Ge0.2)O3 has a significantly larger grain size. Using these materials as electrodes, the cyclic voltammetry (CV) and galvanostatic charge–discharge (GCD) results indicate that the working electrode made of La(Co0.2Cr0.2Ni0.2Ga0.2Ge0.2)O3 shows higher oxidation reaction activity in CV measurements and achieved a specific capacitance of 74.3 F/g at a current density of 1 A/g in GCD measurements, which still maintained 73% of its initial specific capacitance (54.3 F/g) when the current density was increased to 10 A/g. Its capacitance retention rate is 10 percentage points higher than that of La(Co0.2Cr0.2Fe0.2Mn0.2Ni0.2)O3 at high current densities, demonstrating superior rate performance. Full article
(This article belongs to the Special Issue Electrochemical Materials and Devices for Energy Conversion and Storage—2nd Edition)
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Review

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24 pages, 2845 KB  
Review
Silicon-Based Polymer-Derived Ceramics as Anode Materials in Lithium-Ion Batteries
by Liang Zhang, Han Fei, Chenghuan Wang, Hao Ma, Xuan Li, Pengjie Gao, Qingbo Wen, Shasha Tao and Xiang Xiong
Materials 2025, 18(15), 3648; https://doi.org/10.3390/ma18153648 - 3 Aug 2025
Viewed by 746
Abstract
In most commercial lithium-ion batteries, graphite remains the primary anode material. However, its theoretical specific capacity is only 372 mAh∙g−1, which falls short of meeting the demands of high-performance electronic devices. Silicon anodes, despite boasting an ultra-high theoretical specific capacity of [...] Read more.
In most commercial lithium-ion batteries, graphite remains the primary anode material. However, its theoretical specific capacity is only 372 mAh∙g−1, which falls short of meeting the demands of high-performance electronic devices. Silicon anodes, despite boasting an ultra-high theoretical specific capacity of 4200 mAh∙g−1, suffer from significant volume expansion (>300%) during cycling, leading to severe capacity fade and limiting their commercial viability. Currently, silicon-based polymer-derived ceramics have emerged as a highly promising next-generation anode material for lithium-ion batteries, thanks to their unique nano-cluster structure, tunable composition, and low volume expansion characteristics. The maximum capacity of the ceramics can exceed 1000 mAh∙g−1, and their unique synthesis routes enable customization to align with diverse electrochemical application requirements. In this paper, we present the progress of silicon oxycarbide (SiOC), silicon carbonitride (SiCN), silicon boron carbonitride (SiBCN) and silicon oxycarbonitride (SiOCN) in the field of LIBs, including their synthesis, structural characteristics and electrochemical properties, etc. The mechanisms of lithium-ion storage in the Si-based anode materials are summarized as well, including the key role of free carbon in these materials. Full article
(This article belongs to the Special Issue Electrochemical Materials and Devices for Energy Conversion and Storage—2nd Edition)
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22 pages, 9227 KB  
Review
Review: The Application of MXene in Thermal Energy Storage Materials for Efficient Solar Energy Utilization
by Han Sun, Yingai Jin and Firoz Alam
Materials 2025, 18(12), 2839; https://doi.org/10.3390/ma18122839 - 16 Jun 2025
Viewed by 628
Abstract
Two-dimensional transition metal carbides/nitrides (MXenes) have shown potential in biosensors, cancer theranostics, microbiology, electromagnetic interference shielding, photothermal conversion, and thermal energy storage due to their unique electronic structure, ability to absorb a wide range of light, and tunable surface chemistry. In spite of [...] Read more.
Two-dimensional transition metal carbides/nitrides (MXenes) have shown potential in biosensors, cancer theranostics, microbiology, electromagnetic interference shielding, photothermal conversion, and thermal energy storage due to their unique electronic structure, ability to absorb a wide range of light, and tunable surface chemistry. In spite of the growing interest in MXenes, there are relatively few studies on their applications in phase-change materials for enhancing thermal conductivity and weak photo-responsiveness between 0 °C and 150 °C. Thus, this study aims to provide a current overview of recent developments, to examine how MXenes are made, and to outline the combined effects of different processes that can convert light into heat. This study illustrates the mechanisms that include enhanced broadband photon harvesting through localized surface plasmon resonance, electron–phonon coupling-mediated nonradiative relaxation, and interlayer phonon transport that optimizes thermal diffusion pathways. This study emphasizes that MXene-engineered 3D thermal networks can greatly improve energy storage and heat conversion, solving important problems with phase-change materials (PCMs), like poor heat conductivity and low responsiveness to light. This study also highlights the real-world issues of making MXene-based materials on a large scale, and suggests future research directions for using them in smart thermal management systems and solar thermal grid technologies. Full article
(This article belongs to the Special Issue Electrochemical Materials and Devices for Energy Conversion and Storage—2nd Edition)
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