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Batteries
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Cathode Material for Metal-Air Batteries
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Cathode Material for Metal-Air Batteries

A special issue of Batteries (ISSN 2313-0105). This special issue belongs to the section "Battery Materials and Interfaces: Anode, Cathode, Separators and Electrolytes or Others".

Deadline for manuscript submissions: closed (10 October 2023) | Viewed by 4596

Special Issue Editor

Dr. Beibei He

E-Mail Website
Guest Editor
Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
Interests: metal-air batteries; low-temperature electrocatalysis; solid oxide cell related materials

Special Issue Information

Dear Colleagues,

Metal-air batteries (MABs) have become attractive candidates for the next generation of energy storage in the past few decades, owing to their high specific energy density as well as the low cost for next-generation green and sustainable energy technologies. There are many types of MABs, including Li-air batteries (LABs), Na-or K-air batteries, Zn-air batteries (ZABs), Al-or Mg-air batteries, and so on. An air electrode integrated with an oxygen electrocatalyst is the most important component, the sluggish kinetics of oxygen reduction reaction (ORR), and oxygen evolution reaction (OER) are primary factors hampering the improvement of performance and energy efficiency of MABs.

Efforts have been made to develop various catalysts for air cathodes in order to improve the ORR/OER activity and cell performance, which is the key to promoting the commercial application of MABs. This Special Issue will present the current status of cathode materials for MABs, propose strategies to solve the above problems, distinguish the structure and mechanism in electrochemical reactions of improving the performance, and ultimately provide a direction to guide the further application and development of MABs.

Dr. Beibei He
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. Batteries 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 2700 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

  • cathode materials
  • structural design
  • cathode stability
  • kinetics and interfaces
  • new materials
  • advanced characterizations
  • mechanism studies
  • theoretical calculations

Published Papers (2 papers)

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Research

13 pages, 3245 KiB  
Article
Urea-Assisted Sol-Gel Synthesis of LaMnO3 Perovskite with Accelerated Catalytic Activity for Application in Zn-Air Battery
by Kaikai Luo, Qilong Zheng, Yi Yu, Chunchang Wang, Shanshan Jiang, Haijuan Zhang, Yu Liu and Youmin Guo
Batteries 2023, 9(2), 90; https://doi.org/10.3390/batteries9020090 - 29 Jan 2023
Cited by 3 | Viewed by 1994
Abstract
Precious metal-based materials such as commercial Pt/C are available electrocatalysts for redox reactions in Zn-air batteries. However, their commercial use is still limited by slow kinetics and restricted stability. In this work, we highlight a facial urea-assisted sol-gel method to synthesize A-site vacancy [...] Read more.
Precious metal-based materials such as commercial Pt/C are available electrocatalysts for redox reactions in Zn-air batteries. However, their commercial use is still limited by slow kinetics and restricted stability. In this work, we highlight a facial urea-assisted sol-gel method to synthesize A-site vacancy in LaMnO3+δ oxide for boosting its catalytic activity and further explore the effect of the amount of urea on the A-site LaMnO3. The A-site vacancy in LMO was confirmed by XRD, TEM, and XPS, which revealed that the urea-assisted sol-gel method mitigated the A-site vacancy in LaMnO3+δ and increased its surface area, thus ultimately accelerating its redox reaction kinetics. The half-wave potential and current density of the resultant 3.0U-LMO electrocatalyst were 0.74 V and 5.74 mA cm−2, respectively. It is worth noting that the assembled Zn-air battery with the 3.0U-LMO catalyst presented a power output of 130.04 mW cm−2 at 0.51 V and a promising energy efficiency of 58.4% after 150 cycles. This protocol might offer an efficient approach for developing new defect-regulated perovskites for electrocatalysis. Full article
(This article belongs to the Special Issue Cathode Material for Metal-Air Batteries)
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13 pages, 3418 KiB  
Article
Rational A/B Site Ion Doping to Design Efficient and Stable Pr0.5Ba0.4Ca0.1Fe1-xCoxO3-δ Perovskites as Zinc–Air Batteries Cathode
by Kaixin Li, Zhanhua Dong and Zhe Lü
Batteries 2022, 8(12), 259; https://doi.org/10.3390/batteries8120259 - 28 Nov 2022
Cited by 3 | Viewed by 1874
Abstract
The development of robust and efficient electrocatalysts for use in fuel cells and metal–air batteries has garnered a great deal of interest due to the quest for clean and renewable energy sources. In this paper, a promising Co-doped Pr0.5Ba0.4Ca [...] Read more.
The development of robust and efficient electrocatalysts for use in fuel cells and metal–air batteries has garnered a great deal of interest due to the quest for clean and renewable energy sources. In this paper, a promising Co-doped Pr0.5Ba0.4Ca0.1Fe1-xCoxO3-δ (x = 0, 0.2, 0.4, 0.6, 0.8; denoted as PBCFC-x, x = 0, 2, 4, 6, 8) with enhanced durability and electrocatalytic ORR/OER activity for zinc–air battery cathode catalysts is presented. Particularly, PBCFC-6 exhibits the best bifunctional catalytic activity in alkaline media among several materials, according to research using the RDE. The zinc–air battery with PBCFC-6 as the cathode catalyst delivered the smallest discharge–charge voltage difference at the current density of 10 mA·cm−2 and only increased by 0.031 V after 220 cycles (220 h), demonstrating its superior bifunctional catalytic activity and durability. The optimized electrochemical performance of both OER and ORR as well as stability in zinc–air batteries might result from the higher electrical conductivity, increasing concentration of adsorbed oxygen, and the greater proportion of Fe4+ (t2g3eg1) with optimal electron occupancy, owing to the partial replacement of Fe with Co. Full article
(This article belongs to the Special Issue Cathode Material for Metal-Air Batteries)
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