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Novel Materials for Ion Batteries
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Novel Materials for Ion Batteries

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

Deadline for manuscript submissions: closed (31 May 2024) | Viewed by 3357

Special Issue Editors

Prof. Dr. Ming Li

E-Mail Website
Guest Editor
College of Science, Guilin University of Technology, Guilin 541004, China
Interests: graphite; lithium-ion batteries; sodium-ion batteries; anode material; cathode materials; energy storage
Dr. Guanghui Hu

E-Mail Website
Guest Editor Assistant
College of Science, Guilin University of Technology, Guilin 541004, China
Interests: magnetic refrigeration material; graphene; ion adsorption

Special Issue Information

Dear Colleagues,

Ion batteries (IBs), as an ideal candidate for large-scale energy storage systems (ESSs), have been the subject of extensive attention worldwide as a result of the ever-growing energy demands. The development of advanced IB techniques with potentially higher performance is of great concern in order to meet the requirements of ESSs. Based on modern material characterization methods and technological optimizations, the systematic understanding of IBs has been further developed. The new results of novel materials for IBs could provide a rational guideline for the fundamental understanding and practical optimization of battery systems. Here, the focus is mainly on a discussion of novel materials or fresh experimental results for IBs from the relationships among components, structures and performances. We hope that through the study of IB-related details, a certain reference for the development of advanced materials can be created.

Prof. Dr. Ming Li
Guest Editor

Dr. Guanghui Hu
Guest Editor Assistant

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. Molecules 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 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

  • ion batteries
  • lithium-ion batteries
  • sodium-ion batteries
  • anode material
  • cathode materials
  • energy storage
  • graphite
  • carbon
  • electrochemical performance
  • conductivity

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Published Papers (2 papers)

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Research

15 pages, 4635 KiB  
Article
Facile Fabrication of Large-Area CuO Flakes for Sodium-Ion Energy Storage Applications
by Xiaolei Sun and Feng Luo
Molecules 2024, 29(11), 2528; https://doi.org/10.3390/molecules29112528 - 28 May 2024
Cited by 2 | Viewed by 1294
Abstract
CuO is recognized as a promising anode material for sodium-ion batteries because of its impressive theoretical capacity of 674 mAh g−1, derived from its multiple electron transfer capabilities. However, its practical application is hindered by slow reaction kinetics and rapid capacity [...] Read more.
CuO is recognized as a promising anode material for sodium-ion batteries because of its impressive theoretical capacity of 674 mAh g−1, derived from its multiple electron transfer capabilities. However, its practical application is hindered by slow reaction kinetics and rapid capacity loss caused by side reactions during discharge/charge cycles. In this work, we introduce an innovative approach to fabricating large-area CuO and CuO@Al2O3 flakes through a combination of magnetron sputtering, thermal oxidation, and atomic layer deposition techniques. The resultant 2D CuO flakes demonstrate excellent electrochemical properties with a high initial reversible specific capacity of 487 mAh g−1 and good cycling stability, which are attributable to their unique architectures and superior structural durability. Furthermore, when these CuO flakes are coated with an ultrathin Al2O3 layer, the integration of the 2D structures with outer nanocoating leads to significantly enhanced electrochemical properties. Notably, even after 70 rate testing cycles, the CuO@Al2O3 materials maintain a high capacity of 525 mAh g−1 at a current density of 50 mA g−1. Remarkably, at a higher current density of 2000 mA g−1, these materials still achieve a capacity of 220 mAh g−1. Moreover, after 200 cycles at a current density of 200 mA g−1, a high charge capacity of 319 mAh g−1 is sustained. In addition, a full cell consisting of a CuO@Al2O3 anode and a NaNi1/3Fe1/3Mn1/3O2 cathode is investigated, showcasing remarkable cycling performance. Our findings underscore the potential of these innovative flake-like architectures as electrode materials in high-performance sodium-ion batteries, paving the way for advancements in energy storage technologies. Full article
(This article belongs to the Special Issue Novel Materials for Ion Batteries)
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12 pages, 3376 KiB  
Article
Nitrogen-Doped Graphene Quantum Dot-Passivated δ-Phase CsPbI3: A Water-Stable Photocatalytic Adjuvant to Degrade Rhodamine B
by Yiting Gu, Xin Du, Feng Hua, Jianfeng Wen, Ming Li and Tao Tang
Molecules 2023, 28(21), 7310; https://doi.org/10.3390/molecules28217310 - 28 Oct 2023
Cited by 4 | Viewed by 1594
Abstract
Inorganic halide perovskite CsPbI3 is highly promising in the photocatalytic field for its strong absorption of UV and visible light. Among the crystal phases of CsPbI3, the δ-phase as the most aqueous stability; however, directly using it in water is [...] Read more.
Inorganic halide perovskite CsPbI3 is highly promising in the photocatalytic field for its strong absorption of UV and visible light. Among the crystal phases of CsPbI3, the δ-phase as the most aqueous stability; however, directly using it in water is still not applicable, thus limiting its dye photodegradation applications in aqueous solutions. Via adopting nitrogen-doped graphene quantum dots (NGQDs) as surfactants to prepare δ-phase CsPbI3 nanocrystals, we obtained a water-stable material, NGQDs-CsPbI3. Such a material can be well dispersed in water for a month without obvious deterioration. High-resolution transmission electron microscopy and X-ray diffractometer characterizations showed that NGQDs-CsPbI3 is also a δ-phase CsPbI3 after NGQD coating. The ultraviolet-visible absorption spectra indicated that compared to δ-CsPbI3, NGQDs-CsPbI3 has an obvious absorption enhancement of visible light, especially near the wavelength around 521 nm. The good dispersity and improved visible-light absorption of NGQDs-CsPbI3 benefit their aqueous photocatalytic applications. NGQDs-CsPbI3 alone can photodegrade 67% rhodamine B (RhB) in water, while after compositing with TiO2, NGQDs-CsPbI3/TiO2 exhibits excellent visible-light photocatalytic ability, namely, it photodegraded 96% RhB in 4 h. The strong absorption of NGQDs-CsPbI3 in the visible region and effective transfer of photogenerated carriers from NGQDs-CsPbI3 to TiO2 play the key roles in dye photodegradation. We highlight NGQDs-CsPbI3 as a water-stable halide perovskite material and effective photocatalytic adjuvant. Full article
(This article belongs to the Special Issue Novel Materials for Ion Batteries)
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