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Processes
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Advanced Lithium Battery Electrode Materials
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Advanced Lithium Battery Electrode Materials

A special issue of Processes (ISSN 2227-9717). This special issue belongs to the section "Materials Processes".

Deadline for manuscript submissions: closed (20 February 2024) | Viewed by 3833

Special Issue Editors

Dr. Mariya Aleksandrovna Vikulova

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Guest Editor
Department of Chemistry and Technology of Materials, Yuri Gagarin State Technical University of Saratov, 77 Polytecnicheskaya Street, 410054 Saratov, Russia
Interests: layered-material synthesis; materials characterization; materials modification; composite materials; lithium extraction
Dr. Nikolay Gorshkov

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Guest Editor
Department of Chemistry and Technology of Materials, Yuri Gagarin State Technical University of Saratov, 77 Polytecnicheskaya Street, 410054 Saratov, Russia
Interests: electrochemical properties; impedance spectroscopy; polymer composites; ceramics; solid-state ionics
Special Issues, Collections and Topics in MDPI journals
Dr. Igor Burmistrov

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Guest Editor
Engineering Centre, Plekhanov Russian University of Economics, 117997 Moscow, Russia
Interests: renewable energy; thermo-electrochemical cells; nanomaterials; polymer composites; waste-water treatment
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Lithium batteries have undoubted practical applications, as they are widely used in portable electronic devices and are important for the design and development of electric vehicles, which are becoming a focus of attention, especially in the context of the transition to green technologies. Increasing the efficiency and improving the functional characteristics as well as environmental safety of lithium batteries are directly related to the composition and structure of electrode materials. The main problem of electrode materials is that their structure is destroyed in the cyclic process of charging and discharging, which leads to the failure of a lithium-ion battery. This problem can be solved by switching to nanostructured materials and creating composite materials, in which various nanostructures, including carbon nanostructures, can act as a stabilizing matrix. The synthesis of new materials and the modification of well-known electrode materials, as well as the use of composite electrode materials of various compositions in lithium batteries, are of particular interest. Additionally, batteries with polymers or composite electrolytes are more promising; thus, research on the development of electrolytes is also of interest. Important components of research include both the characterization of electrode materials in terms of composition and structure, as well as electrochemical properties, and the study of electrolytes and processes occurring with their participation.

This Special Issue on “Advanced Lithium Battery Electrode Materials” intends to present novel and modified examples of lithium battery electrode materials. Topics include but are not limited to the following:

  • The synthesis of new electrode materials;
  • The modification of electrode materials;
  • Composite electrode materials;
  • Сathode materials;
  • Anode materials;
  • Polymer/composite electrolytes.

Dr. Mariya Aleksandrovna Vikulova
Dr. Nikolay Gorshkov
Dr. Igor Burmistrov
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. Processes 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 2400 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

  • electrode materials synthesis
  • electrode materials modification
  • composite electrodes
  • composite electrolytes
  • lithiation/delithiation processes
  • electrochemical properties

Published Papers (3 papers)

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Research

13 pages, 3647 KiB  
Article
Structural Behaviour and Charge-Compensation Mechanism in Li2Fe1−xCoxSeO Solid Solutions during Reversible Delithiation
by Mikhail V. Gorbunov and Daria Mikhailova
Processes 2024, 12(4), 756; https://doi.org/10.3390/pr12040756 - 09 Apr 2024
Viewed by 371
Abstract
The constantly growing demand for renewable electrical energy keeps the continuation of battery-related research imperative. In spite of significant progress made in the development of Na- and K-ion systems, Li-ion batteries (LIBs) still prevail in the fields of portative devices and electric or [...] Read more.
The constantly growing demand for renewable electrical energy keeps the continuation of battery-related research imperative. In spite of significant progress made in the development of Na- and K-ion systems, Li-ion batteries (LIBs) still prevail in the fields of portative devices and electric or hybrid vehicles. Since the amount of lithium on our planet is significantly limited, studies dedicated to the search for and development of novel materials, which would make LIBs more efficient in terms of their specific characteristics and life lengths, are necessary. Investigations of less industry-related systems are also important, as they provide general knowledge which helps in understanding directions and strategies for the improvement of applied materials. The current paper represents a comprehensive study of cubic Li2Fe1−xCoxSeO compounds with an anti-perovskite structure. These solid solutions demonstrate both cationic and anionic electrochemical activity in lithium cells while being applied as cathodes. Cobalt cations remain inactive; however, their amount in the structure defines if the Se0/Se2− or Fe3+/Fe2+ redox couple dominates the charge compensation mechanism upon (de)lithiation. Apart from that, cobalt affects the structural stability of the materials during cycling. These effects were evaluated by means of operando XRD and XAS techniques. The outcomes can be useful for both fundamental and practice-relevant research. Full article
(This article belongs to the Special Issue Advanced Lithium Battery Electrode Materials)
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16 pages, 4945 KiB  
Article
Effect of LiCl Electrolyte Concentration on Energy Storage of Supercapacitor with Multilayered Ti3C2Tx MXene Electrodes Synthesized by Hydrothermal Etching
by Alexey Tsyganov, Alexander Shindrov, Maria Vikulova, Denis Zheleznov, Alexander Gorokhovsky and Nikolay Gorshkov
Processes 2023, 11(9), 2528; https://doi.org/10.3390/pr11092528 - 23 Aug 2023
Cited by 2 | Viewed by 1168
Abstract
The development of new electrode materials for electrochemical systems for various purposes is a significant and in-demand task of scientific research. Layered transition metal carbides and nitrides, known as MXenes, show great potential for use as electrodes in electrochemical energy storage devices operating [...] Read more.
The development of new electrode materials for electrochemical systems for various purposes is a significant and in-demand task of scientific research. Layered transition metal carbides and nitrides, known as MXenes, show great potential for use as electrodes in electrochemical energy storage devices operating in aqueous electrolytes. In this work, a multilayer Ti3C2Tx MXene was obtained from a Ti3AlC2 precursor and studied as the electrode material of a symmetrical supercapacitor with an aqueous LiCl electrolyte. The formation of the MXene structure was confirmed by the data from X-ray phase analysis and scanning electron microscopy. The X-ray diffraction pattern showed the disappearance of the main reflections related to the Ti3AlC2 phase and the shift of the reflection peak (002) from 9.4° to 6.7°, which indicated successful etching of the Al layers from the Ti3AlC2 precursor. At electrolyte concentrations of 1, 5, 10, and 20 M, the supercapacitors demonstrated high specific capacitances of 105, 120, 126, and 151 F·g−1 at a scan rate of 5 mV·s−1. In addition, an increase in the LiCl concentration contributed to the expansion of the potential window from 0.7 to 1 V. It was shown that the contribution of the surface capacitance to the total capacitance of the electrode is about 40% and depends little on the scan rate. In addition, the symmetrical supercapacitor with 5 M electrolyte showed good cyclic stability with capacitance retention of 88% over 10,000 cycles. The parameters of the main components of the physical processes of supercapacitors based on Ti3C2Tx were determined by the method of impedance spectroscopy. Full article
(This article belongs to the Special Issue Advanced Lithium Battery Electrode Materials)
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16 pages, 17347 KiB  
Article
Activation Energy of Ion Diffusion in an Electrode Material: Theoretical Calculation and Experimental Estimation with LiCoVO4 as an Example
by Kirill S. Rybakov, Arseni V. Ushakov and Artem A. Kabanov
Processes 2023, 11(5), 1427; https://doi.org/10.3390/pr11051427 - 08 May 2023
Viewed by 1925
Abstract
The development of electrode materials for metal-ion batteries is a complex and resource-demanding process. The optimization of this development process requires a combination of theoretical and experimental methods. The former is used to predict the properties of materials and the latter to confirm [...] Read more.
The development of electrode materials for metal-ion batteries is a complex and resource-demanding process. The optimization of this development process requires a combination of theoretical and experimental methods. The former is used to predict the properties of materials and the latter to confirm them. Thus, it is very important to understand how the results of the modeling and experiment are related. In this study, we compare the results of determining the activation energies of lithium ion diffusion in cobalt(II)-lithium vanadate(V), which we obtained by calculations from first principles within the framework of density functional theory (DFT), with the experimental results, which we achieved by applying electrochemical methods such as cyclic voltammetry and galvanostatic and potentiostatic pulses. Based on the experimental and theoretical data obtained for LiCoVO4, we hypothesize that the limitation of the practically realizable capacity of the material at about 1/3 of the theoretical one is due to its structural limitations that lead to the impossibility of involving all lithium ions in the current-forming process. This reason is fixed by the simulation results, but is not detected by the experimental results. Full article
(This article belongs to the Special Issue Advanced Lithium Battery Electrode Materials)
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