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Energies
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Advances in Fuel Cells and Metal-Air Batteries
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Advances in Fuel Cells and Metal-Air Batteries

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "D2: Electrochem: Batteries, Fuel Cells, Capacitors".

Deadline for manuscript submissions: closed (5 May 2023) | Viewed by 3346

Special Issue Editors

Dr. Yifei Wang

E-Mail Website
Guest Editor
School of Mechanical Engineering and automation, Harbin Institute of Technology, Shenzhen 518055, China
Interests: fuel cells; metal-air batteries; aqueous ion batteries; printed batteries
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Dennis Y.C. Leung

grade E-Mail Website
Guest Editor
Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, China
Interests: renewable energy; bioenergy; electrochemical energy; hydrogen
Dr. Xu Lu

E-Mail Website
Guest Editor
Clean Combustion Research Center (CCRC), Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST)，Thuwal 23955，Saudi Arabia
Interests: electrochemical CO2 reduction; in situ analysis; flow cell
Dr. Hao Zhang

E-Mail Website
Guest Editor
School of Engineering, The University of Edinburgh, Edinburgh EH8 9YL, UK
Interests: fuel cell; photoelectrochemical cell; flow cell; Li-ion battery; transfer intensification; microfluidics

Special Issue Information

Dear Colleagues,

New electrochemical energy devices are of key importance to the green energy transformation of human society. Among them, fuel cells and metal-air batteries are very similar to each other, one using fluidic fuels such as hydrogen gas and hydrocarbon fuels while the other uses solid metal fuels such as zinc, magnesium, and aluminium. Compared with conventional batteries, both of them can achieve much higher energy density as well as better environmental friendliness, which are suitable for various applications ranging from megawatt-level power plants and kilowatt-level electric vehicles to watt-level portable electronics. Currently, the associated technologies are still under rapid development, focusing on improving energy efficiency, durability, as well as reducing capital cost. To make contributions to this trend, this Special Issue of Energies welcomes all types of research papers related to fuel cell and metal-air battery technologies, including material study, device innovation, system development, and real applications. Both experimental work and numerical modelling will be considered, while perspective reviews papers are also highly desired.

Dr. Yifei Wang
Prof. Dr. Dennis Leung
Dr. Xu Lu
Dr. Hao Zhang
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. Energies 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 cell
  • metal-air battery
  • catalyst
  • mass transport
  • water management
  • energy efficiency
  • cost efficiency
  • stacking

Published Papers (2 papers)

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Research

11 pages, 4172 KiB  
Communication
Influence of Calcination Temperature on Electrochemical Properties of Perovskite Oxide Nanofiber Catalysts
by Ji-Woo Park, Jeeyoung Shin and Young-Wan Ju
Energies 2023, 16(13), 4979; https://0-doi-org.brum.beds.ac.uk/10.3390/en16134979 - 27 Jun 2023
Viewed by 809
Abstract
Energy conversion and storage systems have recently attracted significant attention owing to increasing environmental and energy problems. However, the slow kinetics of the oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER) render their commercialization difficult. Many studies are being conducted to [...] Read more.
Energy conversion and storage systems have recently attracted significant attention owing to increasing environmental and energy problems. However, the slow kinetics of the oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER) render their commercialization difficult. Many studies are being conducted to replace precious metal catalysts that have high activity for the ORR and OER but have scarcity and low stability. In this study, Sm0.5Sr0.5CoO3 (SSC) nanofibers were fabricated via the electrospinning of non-precious metal-based perovskite oxides to replace precious metal catalysts. In addition, the properties and electrochemical performance of SSC fibers synthesized at different calcination temperatures were evaluated. The small crystallite size, high specific surface area, abundant oxygen vacancies, and high ORR/OER activity suggest that SSC800 hollow fibers are optimal bifunctional catalysts. Full article
(This article belongs to the Special Issue Advances in Fuel Cells and Metal-Air Batteries)
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14 pages, 2931 KiB  
Article
Comparison of Nature and Synthetic Zeolite for Waste Battery Electrolyte Treatment in Fixed-Bed Adsorption Column
by Cong Yang, Yifei Wang and Abdullatif Alfutimie
Energies 2022, 15(1), 347; https://0-doi-org.brum.beds.ac.uk/10.3390/en15010347 - 04 Jan 2022
Cited by 3 | Viewed by 1830
Abstract
To support a sustainable energy development, CO2 reduction for carbon neutralization and water-splitting for hydrogen economy are two feasible technical routes, both of which require a significant input of renewable energies. To efficiently store renewable energies, secondary batteries will be applied in [...] Read more.
To support a sustainable energy development, CO2 reduction for carbon neutralization and water-splitting for hydrogen economy are two feasible technical routes, both of which require a significant input of renewable energies. To efficiently store renewable energies, secondary batteries will be applied in great quantity, so that a considerable amount of energy needs to be invested to eliminate the waste battery electrolyte pollution caused by heavy metals including Cu2+, Zn2+ and Pb2+. To reduce this energy consumption, the removal behaviors of these ions by using clinoptilolite and zeolite A under 5, 7 and 10 BV h−1 in a fixed-bed reactor were investigated. The used zeolites were then regenerated by a novel NH4Cl solution soaking, coupled with the ultrasonication method. Further characterizations were carried out using scanning electron microscopy, N2 adsorption and desorption test, and wide-angle X-ray diffraction. The adsorption breakthrough curves revealed that the leaching preference of clinoptilolite was Pb2+ > Cu2+ > Zn2+, while the removal sequence for zeolite A was Zn2+ > Cu2+ > Pb2+. The maximum removal percentage of Zn2+ ions for clinoptilolite under 5 BV h−1 was 21.55%, while it was 83.45% for zeolite A. The leaching ability difference was also discussed combining with the characterization results. The fact that unit cell stayed the same before and after the regeneration treatment approved the efficacy of the regeneration method, which detached most of the ions while doing little change to both morphology and crystallinity of the zeolites. By evaluating the pH and conductivity changes, the leaching mechanisms by adsorption and ion exchange were further studied. Full article
(This article belongs to the Special Issue Advances in Fuel Cells and Metal-Air Batteries)
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