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Advances in Lithium Battery Technologies
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Advances in Lithium Battery Technologies

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

Deadline for manuscript submissions: closed (20 June 2023) | Viewed by 1147

Special Issue Editors

Dr. Yaobin Xu

E-Mail Website
Guest Editor
Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA, 99352 USA
Interests: energy materials; microstructural characterizations; oxide thin films; electron spectroscopy
Special Issues, Collections and Topics in MDPI journals
Dr. Jiancun Rao

E-Mail Website
Guest Editor
AIM Lab., Maryland NanoCenter, University of Maryland, College Park, MD 20742, USA
Interests: electron microscopy; crystals; ceramics; phase transformation
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Since the introduction of commercial Li-ion batteries in 1991, rechargeable Li-ion batteries have served as an efficient energy storage option for portable electronic devices for the past few decades and are currently the leading technology for electric vehicles. However, the inherent limitation of this type of battery could not meet the rapid growing demand for energy density, which means the batteries beyond Li-ion need to be developed. A Li metal battery is one of the most promising next generation batteries in achieving the high energy density. However, the uncontrolled Li growth and the accompanying side-reactions will cause thermal runaway and explosion hazards. Another major issue is the use of organic liquid electrolytes in commercial Li-ion batteries, especially the extremely high reactivity of liquid organic electrolytes with Li metal anode in rechargeable Li metal batteries cause safety concerns, such as fire hazard. In recent years, growing research efforts have been devoted to improving the understanding of Li metal batteries, especially the Li metal solid-state batteries. This Special Issue will focus on the recent progress on advanced characterization of Li metal anode and solid-state electrolyte by using variety ex/in situ techniques, attempt to clarify the fundamental mechanisms and provide the design guidance for the development of high performance and safe Li metal solid-state batteries.

Dr. Yaobin Xu
Dr. Jiancun Rao
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. 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.

Published Papers (2 papers)

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Research

14 pages, 9952 KiB  
Article
Silver-Assisted Chemical Etching for the Fabrication of Porous Silicon N-Doped Nanohollow Carbon Spheres Composite Anodes to Enhance Electrochemical Performance
by Zimu Zhang, Yuqi Zhang, Weixuan Chen, Xiang Zhang, Le Yu and Zisheng Guan
Materials 2024, 17(13), 3189; https://doi.org/10.3390/ma17133189 - 29 Jun 2024
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Abstract
Silicon (Si) shows great potential as an anode material for lithium-ion batteries. However, it experiences significant expansion in volume as it undergoes the charging and discharging cycles, presenting challenges for practical implementation. Nanostructured Si has emerged as a viable solution to address these [...] Read more.
Silicon (Si) shows great potential as an anode material for lithium-ion batteries. However, it experiences significant expansion in volume as it undergoes the charging and discharging cycles, presenting challenges for practical implementation. Nanostructured Si has emerged as a viable solution to address these challenges. However, it requires a complex preparation process and high costs. In order to explore the above problems, this study devised an innovative approach to create Si/C composite anodes: micron-porous silicon (p-Si) was synthesized at low cost at a lower silver ion concentration, and then porous silicon-coated carbon (p-Si@C) composites were prepared by compositing nanohollow carbon spheres with porous silicon, which had good electrochemical properties. The initial coulombic efficiency of the composite was 76.51%. After undergoing 250 cycles at a current density of 0.2 A·g−1, the composites exhibited a capacity of 1008.84 mAh·g−1. Even when subjected to a current density of 1 A·g−1, the composites sustained a discharge capacity of 485.93 mAh·g−1 even after completing 1000 cycles. The employment of micron-structured p-Si improves cycling stability, which is primarily due to the porous space it provides. This porous structure helps alleviate the mechanical stress caused by volume expansion and prevents Si particles from detaching from the electrodes. The increased surface area facilitates a longer pathway for lithium-ion transport, thereby encouraging a more even distribution of lithium ions and mitigating the localized expansion of Si particles during cycling. Additionally, when Si particles expand, the hollow carbon nanospheres are capable of absorbing the resulting stress, thus preventing the electrode from cracking. The as-prepared p-Si utilizing metal-assisted chemical etching holds promising prospects as an anode material for lithium-ion batteries. Full article
(This article belongs to the Special Issue Advances in Lithium Battery Technologies)
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16 pages, 9405 KiB  
Article
Study of the Rolling Effect on MoS2–Carbon Fiber Density and Its Consequences for the Functionality of Li-Ion Batteries
by Tai-Yu Wu, Xiao-Ru Li, Bo-Chun Chen, Li-Wen Wang, Jia-Hao Wang, Sheng-Yuan Chu and Chia-Chin Chang
Materials 2024, 17(12), 2825; https://doi.org/10.3390/ma17122825 - 10 Jun 2024
Viewed by 459
Abstract
In this study, an electrode slurry composed of molybdenum disulfide (MoS2) and vapor-grown carbon fiber (VGCF) prepared through a solid-phase synthesis method was blade-coated onto copper foil to form a thick film as the anode for lithium-ion batteries. In previously reported [...] Read more.
In this study, an electrode slurry composed of molybdenum disulfide (MoS2) and vapor-grown carbon fiber (VGCF) prepared through a solid-phase synthesis method was blade-coated onto copper foil to form a thick film as the anode for lithium-ion batteries. In previously reported work, MoS2-based lithium-ion batteries have experienced gradual deformation, fracture, and pulverization of electrode materials during the charge and discharge cycling process. This leads to an unstable electrode structure and rapid decline in battery capacity. Furthermore, MoS2 nanosheets tend to aggregate over charge and discharge cycles, which diminishes the surface activity of the material and results in poor electrochemical performance. In this study, we altered the density of the MoS2–carbon fiber/Cu foil anode electrode by rolling. Three different densities of electrode sheets were obtained through varying rolling repetitions. Our study shows the best electrochemical performance was achieved at a material density of 2.2 g/cm3, maintaining a capacity of 427 mAh/g even after 80 cycles. Full article
(This article belongs to the Special Issue Advances in Lithium Battery Technologies)
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