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Applied Sciences
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Advanced Electrochemical Materials for Energy Conversion and Storage Devices
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Advanced Electrochemical Materials for Energy Conversion and Storage Devices

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Materials Science and Engineering".

Deadline for manuscript submissions: closed (31 January 2021) | Viewed by 20367

Special Issue Editors

Prof. Dr. Dong-Won Kim

E-Mail Website
Guest Editor
Department of Chemical Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Korea
Interests: lithium-ion battery; all-solid-state battery; Li–sulfur battery; Li–air battery; sodium-ion battery; electrochemical capacitor
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Yong Min Lee

E-Mail Website
Guest Editor
Department of Energy Science and Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), 333 Techno Jungang-daero, Dalseong-gun, Daegu 42988, Korea
Interests: lithium-ion battery; lithium-metal battery; all-solid-state battery; cell design and modeling; 3D structural analysis

Special Issue Information

Dear Colleagues,

It is our pleasure to announce the opening of a new Special Issue in Applied Sciences.

With the rapid growth in energy consumption and finite fossil fuel resources, the necessity for energy conversion and storage devices is increasing. The most attractive systems that act as energy storage devices are rechargeable batteries and electrochemical capacitors, which can supply suitable energy to electronic applications, electric vehicles, and grid-scale energy storage systems for renewable energy sources. Their new applications are rapidly emerging onto the market.

This Special Issue aims to provide and share recent research and development on advanced electrochemical materials for energy conversion and storage devices, which include lithium-ion batteries, sodium-ion batteries, redox flow batteries, next-generation batteries (lithium-sulfur, lithium-air, all-solid state batteries), electrochemical capacitors, and hybrid capacitors. Research on basic and applied research findings that have led to improved performance and safety and to the understanding of fundamental processes are also welcome.

Papers published in this Special Issue will be of great interest to researchers working in the field of energy conversion and storage systems and will provide a cornerstone for the continuous development of relevant technologies and specialized technological reinforcement. We welcome diverse contributions from material scientists and engineers from universities, research institutes, and industries in these fields. We hope you will contribute your high-quality research, and we look forward to reading your valuable results.

Prof. Dr. Dong-Won Kim
Prof. Dr. Yong Min Lee
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. Applied Sciences 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 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

  • Lithium-ion battery
  • Lithium-metal battery
  • All-solid-state battery
  • Sodium-ion battery
  • Multi-valent-ion battery
  • Redox-flow battery
  • Electrochemical capacitor
  • Electrochemical materials
  • Cell design, modeling, and simulation
  • Battery manufacturing and safety

Published Papers (7 papers)

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Research

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16 pages, 3243 KiB  
Article
Self-Assembled Multinuclear Complexes for Cobalt(II/III) Mediated Sensitized Solar Cells
by Edoardo Marchini, Stefano Caramori, Rita Boaretto, Vito Cristino, Roberto Argazzi, Alessandro Niorettini and Carlo Alberto Bignozzi
Appl. Sci. 2021, 11(6), 2769; https://doi.org/10.3390/app11062769 - 19 Mar 2021
Cited by 2 | Viewed by 1772
Abstract
In this work, we designed a tetranuclear self-assembled dye 4 (2Z907-Ag+-(Ru(TMAM))) exploiting a combination of the antenna effect and positively-charged groups designed to repel the oxidized form of cationic cobalt redox mediators, in order to reduce recombination and increase the efficiency [...] Read more.
In this work, we designed a tetranuclear self-assembled dye 4 (2Z907-Ag+-(Ru(TMAM))) exploiting a combination of the antenna effect and positively-charged groups designed to repel the oxidized form of cationic cobalt redox mediators, in order to reduce recombination and increase the efficiency of dye sensitized solar cells (DSSCs). Charge transfer and excited dynamics were probed by photoelectrochemical and photophysical measurements. The sensitized cell performance, recorded with a [Co(bpy)3]3+/2+ redox mediator and PEDOT counter electrode, showed an improvement when passing from Z907 to the multinuclear systems. The enhancement of the efficiency compared to Z907 resulted mainly from a superior steric and electrostatic shielding determined by the simultaneous presence of long alkyl chains and quaternary ammonia ion units in the architecture of 4. Full article
(This article belongs to the Special Issue Advanced Electrochemical Materials for Energy Conversion and Storage Devices)
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18 pages, 4604 KiB  
Article
State of Charge Estimation for Lithium-Ion Power Battery Based on H-Infinity Filter Algorithm
by Lan Li, Minghui Hu, Yidan Xu, Chunyun Fu, Guoqing Jin and Zonghua Li
Appl. Sci. 2020, 10(18), 6371; https://doi.org/10.3390/app10186371 - 13 Sep 2020
Cited by 20 | Viewed by 2472
Abstract
To accurately estimate the state of charge (SOC) of lithium-ion power batteries in the event of errors in the battery model or unknown external noise, an SOC estimation method based on the H-infinity filter (HIF) algorithm is proposed in this paper. Firstly, a [...] Read more.
To accurately estimate the state of charge (SOC) of lithium-ion power batteries in the event of errors in the battery model or unknown external noise, an SOC estimation method based on the H-infinity filter (HIF) algorithm is proposed in this paper. Firstly, a fractional-order battery model based on a dual polarization equivalent circuit model is established. Then, the parameters of the fractional-order battery model are identified by the hybrid particle swarm optimization (HPSO) algorithm, based on a genetic crossover factor. Finally, the accuracy of the SOC estimation results of the lithium-ion batteries, using the HIF algorithm and extended Kalman filter (EKF) algorithm, are verified and compared under three conditions: uncertain measurement accuracy, uncertain SOC initial value, and uncertain application conditions. The simulation results show that the SOC estimation method based on HIF can ensure that the SOC estimation error value fluctuates within ±0.02 in any case, and is slightly affected by environmental and other factors. It provides a way to improve the accuracy of SOC estimation in a battery management system. Full article
(This article belongs to the Special Issue Advanced Electrochemical Materials for Energy Conversion and Storage Devices)
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14 pages, 943 KiB  
Article
A Critical Study of Using the Peukert Equation and Its Generalizations for Determining the Remaining Capacity of Lithium-Ion Batteries
by Nikolay E. Galushkin, Nataliya N. Yazvinskaya and Dmitriy N. Galushkin
Appl. Sci. 2020, 10(16), 5518; https://doi.org/10.3390/app10165518 - 10 Aug 2020
Cited by 7 | Viewed by 2341
Abstract
In many papers for forecasting remaining capacity of lithium-ion batteries, various analytical models are used based on the Peukert equation. In this paper, it is shown that the classic Peukert equation is applicable in two ranges of discharge currents. The first range isis [...] Read more.
In many papers for forecasting remaining capacity of lithium-ion batteries, various analytical models are used based on the Peukert equation. In this paper, it is shown that the classic Peukert equation is applicable in two ranges of discharge currents. The first range isis the battery released capacity and ) to currents at which the discharge capacity of battery begins to rapidly decrease. The second range of discharge currents is from the inflection point of experimental curve to the highest currents used in the experiments. In the first range of discharge currents, both the classic Peukert equation and the Liebenow equation can be used. The operating range of the discharge currents for commercial automotive-grade lithium batteries is in the first range. Therefore, in many of the analytical models, the classic Peukert equation (taking into account the temperature) is successfully used to estimate the remaining capacity of these batteries. An analysis and evaluation of advantages and disadvantages of all the most popular generalized Peukert equations is presented. The generalized Peukert equation with allowance for temperature is established, which makes it possible to estimate the released capacity with high accuracy for lithium-ion batteries. Full article
(This article belongs to the Special Issue Advanced Electrochemical Materials for Energy Conversion and Storage Devices)
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10 pages, 6041 KiB  
Article
Preparation and Electrochemical Properties of Functionalized Multi-Walled Carbon Nanotubes @ Carbon Quantum Dots @ Polyaniline Ternary Composite Electrode Materials
by Jing Wang, Youyang Chen, Zhihao Hu, Ye Ge, Guotao Dong, Tianhao Hu and Chul Gyu Jhun
Appl. Sci. 2020, 10(16), 5462; https://doi.org/10.3390/app10165462 - 07 Aug 2020
Cited by 4 | Viewed by 2001
Abstract
Based on various carbon nano materials, the ternary composite functionalized carbon nanotubes (FMWCNTs) @ carbon quantum dots (CQDs) @ polyaniline (PANI) was prepared by in-situ polymerization and hydrothermal method. The carbon-based material was made into an electrode sheet. The morphology and microscopic nanostructures [...] Read more.
Based on various carbon nano materials, the ternary composite functionalized carbon nanotubes (FMWCNTs) @ carbon quantum dots (CQDs) @ polyaniline (PANI) was prepared by in-situ polymerization and hydrothermal method. The carbon-based material was made into an electrode sheet. The morphology and microscopic nanostructures were characterized by FTIR, field emission scanning electron microscopy and field emission transmission electron microscopy. Cyclic voltammetry and the galvanostatic charge discharge method was adapted to study the electrochemical properties of these active materials. Our results showed that the specific capacitance of FMWCNTs @ CQDs @ PANI was as high as 534 F/g, while it was 362 F/g, 319 F/g and 279 F/g for PANI @ FMWCNTs, PANI @ CQDs and polyaniline. This means that the specific capacitance of FMWCNTs @ CQDs @ PANI is increased by 47.5%, 67.4% and 91.4% comparing with the capacitance of PANI @ FMWCNTs, PANI @ CQDs and polyaniline, respectively. Moreover, the specific capacitance retention rate of the ternary active electrode after 1000 times of constant current charge and discharge cycle reached 86%, while it was 60% for PANI @ FMWCNTs, 72% for PANI @ CQDs and 65% for polyaniline. Full article
(This article belongs to the Special Issue Advanced Electrochemical Materials for Energy Conversion and Storage Devices)
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13 pages, 17773 KiB  
Article
Serial Disulfide Polymers as Cathode Materials in Lithium-Sulfur Battery: Materials Optimization and Electrochemical Characterization
by Jing Wang and Shichao Zhang
Appl. Sci. 2020, 10(7), 2538; https://doi.org/10.3390/app10072538 - 07 Apr 2020
Cited by 2 | Viewed by 2579
Abstract
Herein, a series of novel disulfide polymers were synthesized by using the raw materials of diallyl-o-phthalate, tung oil, peanut oil, and styrene. Four kinds of products: Poly (sulfur-diallyl-o-phthalate) copolymer, poly (sulfur-tung oil) copolymer, poly (sulfur-peanut oil) copolymer, and poly (sulfur-styrene-peanut oil) terpolymer were [...] Read more.
Herein, a series of novel disulfide polymers were synthesized by using the raw materials of diallyl-o-phthalate, tung oil, peanut oil, and styrene. Four kinds of products: Poly (sulfur-diallyl-o-phthalate) copolymer, poly (sulfur-tung oil) copolymer, poly (sulfur-peanut oil) copolymer, and poly (sulfur-styrene-peanut oil) terpolymer were characterized, and their solubility was studied and compared. Among the four kinds of disulfide polymers, poly (sulfur-styrene-peanut oil) terpolymer had the best solubility in an organic solvent, and it was chosen to be the active cathode material in Li-S battery. Subsequently, two different conductive additives—conductive carbon black and graphene were separately blended with this terpolymer to prepare two battery systems. The electrochemical performances of the two batteries were compared and analyzed. The result showed that the initial specific capacity of poly (sulfur-styrene-peanut oil) terpolymer (blended with conductive carbon black) battery was 935.88 mAh/g, with the capacity retention rate about 43.5%. Comparingly, the initial specific capacity of poly (sulfur-styrene-peanut oil) terpolymer (blended with graphene) battery was 1008.35 mAh/g, with the capacity retention rate around 60.59%. Therefore, the battery system of poly (sulfur-styrene-peanut oil) terpolymer with graphene showed a more stable cycle performance and better rate performance. This optimized system had a simple and environmental-friendly synthesis procedure, which showed a great application value in constructing cathode materials for the Li-S battery. Full article
(This article belongs to the Special Issue Advanced Electrochemical Materials for Energy Conversion and Storage Devices)
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Review

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23 pages, 4242 KiB  
Review
Electrochemical Ion Pumping Device for Blue Energy Recovery: Mixing Entropy Battery
by Felipe Galleguillos, Luis Cáceres, Lindley Maxwell and Álvaro Soliz
Appl. Sci. 2020, 10(16), 5537; https://doi.org/10.3390/app10165537 - 11 Aug 2020
Cited by 7 | Viewed by 3352
Abstract
In the process of finding new forms of energy extraction or recovery, the use of various natural systems as potential clean and renewable energy sources has been examined. Blue energy is an interesting energy alternative based on chemical energy that is spontaneously released [...] Read more.
In the process of finding new forms of energy extraction or recovery, the use of various natural systems as potential clean and renewable energy sources has been examined. Blue energy is an interesting energy alternative based on chemical energy that is spontaneously released when mixing water solutions with different salt concentrations. This occurs naturally in the discharge of rivers into ocean basins on such a scale that it justifies efforts for detailed research. This article collects the most relevant information from the latest publications on the topic, focusing on the use of the mixing entropy battery (MEB) as an electrochemical ion pumping device and the different technological means that have been developed for the conditions of this process. In addition, it describes various practices and advances achieved by various researchers in the optimization of this device, in relation to the most important redox reactions and the cathode and anodic materials used for the recovery of blue energy or salinity gradient energy. Full article
(This article belongs to the Special Issue Advanced Electrochemical Materials for Energy Conversion and Storage Devices)
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39 pages, 8270 KiB  
Review
The Progress of Cobalt-Based Anode Materials for Lithium Ion Batteries and Sodium Ion Batteries
by Yaohui Zhang, Nana Wang and Zhongchao Bai
Appl. Sci. 2020, 10(9), 3098; https://doi.org/10.3390/app10093098 - 29 Apr 2020
Cited by 7 | Viewed by 5199
Abstract
Limited by the development of energy storage technology, the utilization ratio of renewable energy is still at a low level. Lithium/sodium ion batteries (LIBs/SIBs) with high-performance electrochemical performances, such as large-scale energy storage, low costs and high security, are expected to improve the [...] Read more.
Limited by the development of energy storage technology, the utilization ratio of renewable energy is still at a low level. Lithium/sodium ion batteries (LIBs/SIBs) with high-performance electrochemical performances, such as large-scale energy storage, low costs and high security, are expected to improve the above situation. Currently, developing anode materials with better electrochemical performances is the main obstacle to the development of LIBs/SIBs. Recently, a variety of studies have focused on cobalt-based anode materials applied for LIBs/SIBs, owing to their high theoretical specific capacity. This review systematically summarizes the recent status of cobalt-based anode materials in LIBs/SIBs, including Li+/Na+ storage mechanisms, preparation methods, applications and strategies to improve the electrochemical performance of cobalt-based anode materials. Furthermore, the current challenges and prospects are also discussed in this review. Benefitting from these results, cobalt-based materials can be the next-generation anode for LIBs/SIBs. Full article
(This article belongs to the Special Issue Advanced Electrochemical Materials for Energy Conversion and Storage Devices)
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