Articles
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Rational design of Ru/TiO2/CNTs as cathode: promotion of cycling performance for aprotic lithium-oxygen battery
Energy Mater 2023;3:300011. DOI: 10.20517/energymater.2022.68AbstractRealizing long-life cycling is the biggest challenge in the research field of Li-O2 batteries in ... MORERealizing long-life cycling is the biggest challenge in the research field of Li-O2 batteries in the current stage. The main reasons for poor cycling performance are the sluggish Li2O2 formation and decomposition process, as well as the side reaction of carbon cathode. In order to accurately address the problems above, a TiO2/CNTs cathode was rationally designed for long-life Li-O2 batteries. The CNTs skeleton offers multiple three-dimensional channels for the rapid transportation of oxygen, Li+ and electrons. A thin-film and discontinuous layer of TiO2 is coated on the CNTs surface to effectively inhibit the carbon corrosion but still could let mass transfer smoothly. Ultrafine Ru nanoparticles decorating the TiO2/CNTs serve as efficient catalytic active sites. Benefiting from the unique structure design, Li-O2 batteries with the cathode of TiO2/CNTs achieve a cycling life of 110 with a fixed capacity of 500 mAh g-1 at a current density of 100 mA g-1. Our research generates new ideas for designing long-cycling Li-O2 battery cathodes. LESS Full articleArticle|Published on: 23 Mar 2023 -
Recent commentaries on the expected performance, advantages and applications of sodium-ion batteries
Energy Mater 2023;3:300010. DOI: 10.20517/energymater.2022.70Research Highlight|Published on: 3 Mar 2023 -
Enhanced all-climate sodium-ion batteries performance in a low-defect and Na-enriched Prussian blue analogue cathode by nickel substitution
Energy Mater 2023;3:300008. DOI: 10.20517/energymater.2022.71AbstractCobalt hexacyanoferrate (CoHCF) is one of the most promising cathode materials for all-climate sodium-ion batteries ... MORECobalt hexacyanoferrate (CoHCF) is one of the most promising cathode materials for all-climate sodium-ion batteries (SIBs) due to its open three-dimensional (3D) framework structures, high theoretical specific capacity, good voltage platform and almost no Jahn-Teller effects. However, CoHCF still suffers from poor cycling stability and bad rate capability, which is closely related to the huge distortion of frame structure and poor conductivity. In this study, by choosing nickel (Ni) to partially replace cobalt (Co) in the CoHCF lattice, we successfully prepared low-defect and Na-enriched Na2Co0.7Ni0.3[Fe(CN)6] (Co0.7Ni0.3HCF) in chelate and sodium salt-assisted coprecipitation method. Both experiments and first-principles calculations demonstrate that Ni substitution can effectively suppress the lattice distortion during the charging and discharging process of CoHCF. Furthermore, the introduction of Ni increases ion mobility by reducing the ion migration barrier (0.31 eV versus 0.17 eV) and improves the electronic conductivity by reducing the bandgap. It is found that Co0.7Ni0.3HCF exhibits superior electrochemical performance compared with that of CoHCF in a wide temperature range (-30 to 60 °C). At 25 °C, Co0.7Ni0.3HCF delivers a high specific capacity of 142.2 mAh g-1 at 0.2 C, an ultrahigh rate capability with126.2 mAh g-1 at 5 C and excellent cycling stability with 80.9% capacity retention after 500 cycles at 5 C. Even at-30 °C, Co0.7Ni0.3HCF can provide a high capacity of 109 mAh g-1 without an activation process. This work reveals the great application prospect of PBAs for all-climate SIBs, especially at low temperatures. LESS Full articleArticle|Published on: 14 Feb 2023 -
Recent progress of multilayer polymer electrolytes for lithium batteries
Energy Mater 2023;3:300009. DOI: 10.20517/energymater.2022.64AbstractThe significant market for electric vehicles and portable electronic devices is driving the development of ... MOREThe significant market for electric vehicles and portable electronic devices is driving the development of high-energy-density solid-state lithium batteries. However, the solid electrolyte is still the main obstacle to the development of solid-state lithium batteries, mainly due to the lack of a single solid electrolyte that is compatible with both high-voltage cathodes and lithium metal anodes. These problems can potentially be solved with multilayer electrolytes. The property of each layer of the electrolyte can be tuned separately, which not only meets the different needs of the cathode and anode but also makes up for the shortcomings of each layer of the electrolyte, thereby achieving good mechanical properties and chemical and electrochemical stability. This review first presents a brief introduction to homogeneous single-layer electrolytes. The design principles of multilayer polymer electrolytes and the application of these principles using examples from recent work are then introduced. Finally, several suggestions as guides for future work are given. LESS Full articleReview|Published on: 14 Feb 2023 -
Zn-based batteries for energy storage
Energy Mater 2023;3:300007. DOI: 10.20517/energymater.2022.84AbstractZn-based electrochemistry is considered to be the most promising alternative to Li-ion batteries due to ... MOREZn-based electrochemistry is considered to be the most promising alternative to Li-ion batteries due to its abundant reserves and cost-effectiveness. In addition, aqueous electrolytes are more convenient to be used inZn-based batteries due to their good compatibility with Zn-chemistry, thereby reducing cost and improving safety. Furthermore, Zn2+/Zn couples involve two-electron redox chemistry, which can provide higher theoretical energy capacity and energy density. Based on this, a series of Zn-based battery systems, including Zn-ion batteries,Zn-air batteries, and Zn-based redox flow batteries, have received more and more research attention. Here, the fundamentals and recent advances in Zn-based rechargeable batteries are presented, along with perspectives on further research directions. LESS Full articleReview|Published on: 13 Feb 2023 -
C60 and ZIF-67 synergistically modified gelatin-based nanofibrous separators for Li-S batteries
Energy Mater 2023;3:300006. DOI: 10.20517/energymater.2022.63AbstractThe lithium-sulfur (Li-S) battery has been attracting much more attention in recent years due to ... MOREThe lithium-sulfur (Li-S) battery has been attracting much more attention in recent years due to its high theoretical capacity and low cost, although various issues, such as the “shuttle effect” and the low use ratio of active materials, have been hindering the development and application of Li-S batteries. The separator is an important part of Li-S batteries, and its modification is a simple and effective strategy to improve the electrochemical performance of Li-S batteries. In this work, we explore separators with different functions on their two sides that have been produced by a step-by-step electrospinning method. The multifunctional separator on one side is pure gelatin, and the other side is zeolitic imidazolate framework-67 (ZIF-67)-C60-gelatin. The ZIF-67-C60-gelatin layer on the cathode side is of great importance. The chemisorption sites on it are provided by ZIF-67, and the transformation sites of lithium polysulfide are provided by C60. Gelatin, which is on the anode side, as an admirable separator material, makes the lithium flux uniform and thus prevents the generation of lithium dendrites. This type of multifunctional nanofiber separator based on double gelatin layers plays an important role in the adsorption and conversion of polysulfides, and it improves the overall performance of the Li-S battery. As a result, the Li-S batteries assembled with the prepared separator can still maintain the capacity of 888 mAh g-1 after 100 cycles at 0.2 C, and the capacity retention rate of the Li-S batteries is 72.9% after 400 cycles at 2 C. This simple preparation method and high-performance bilayer membrane structure provide a new route for commercial application. LESS Full articleArticle|Published on: 10 Feb 2023
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Recent developments in advanced anode materials for lithium-ion batteries
Energy Mater 2021;1:100003. DOI: 10.20517/energymater.2021.02AbstractThe rapid expansion of electric vehicles and mobile electronic devices is the main driver for ... MOREThe rapid expansion of electric vehicles and mobile electronic devices is the main driver for the improvement of advanced high-performance lithium-ion batteries (LIBs). The electrochemical performance of LIBs depends on the specific capacity, rate performance and cycle stability of the electrode materials. In terms of the enhancement of LIB performance, the improvement of the anode material is significant compared with the cathode material. There are still some challenges in producing an industrial anode material that is superior to commercial graphite. Based on the different electrochemical reaction mechanisms of anode materials for LIBs during charge and discharge, the advantages/disadvantages and electrochemical reaction mechanisms of intercalation-, conversion- and alloying-type anode materials are summarized in detail here. The methods and strategies for improving the electrochemical performance of different types of anode materials are described in detail. Finally, challenges for the future development of LIBs are also considered. This review offers a meaningful reference for the construction and performance optimization of anode materials for LIBs. LESS Full articleReview|Published on: 7 Sep 2021 -
A review of the energy storage aspects of chemical elements for lithium-ion based batteries
Energy Mater 2021;1:100019. DOI: 10.20517/energymater.2021.20AbstractEnergy storage devices such as batteries hold great importance for society, owing to their high ... MOREEnergy storage devices such as batteries hold great importance for society, owing to their high energy density, environmental benignity and low cost. However, critical issues related to their performance and safety still need to be resolved. The periodic table of elements is pivotal to chemistry, physics, biology and engineering and represents a remarkable scientific breakthrough that sheds light on the fundamental laws of nature. Here, we provide an overview of the role of the most prominent elements, including s-block, p-block, transition and inner-transition metals, as electrode materials for lithium-ion battery systems regarding their perspective applications and fundamental properties. We also outline hybrid materials, such as MXenes, transition metal oxides, alloys and graphene oxide. Finally, the challenges and prospects of each element and their derivatives and hybrids for future battery systems are discussed, which may provide guidance towards green, low-cost, versatile and sustainable energy storage devices. LESS Full articleReview|Published on: 31 Dec 2021 -
Non-fused ring acceptors for organic solar cells
Energy Mater 2021;1:100008. DOI: 10.20517/energymater.2021.08AbstractOrganic solar cells (OSCs) have experienced rapid development and achieved significant breakthroughs in power conversion ... MOREOrganic solar cells (OSCs) have experienced rapid development and achieved significant breakthroughs in power conversion efficiencies owing to the emergence of non-fullerene acceptors (NFAs) with ladder-type multiple fused ring structures. However, the high synthetic complexity and production cost of multiple fused ring NFAs hinder the commercial prospects of OSCs. In this context, the development of non-fused ring acceptors (NFRAs) with simple structures and facile synthesis has been proposed. In this mini review, we summarize the important progress in this field spanning from molecular design strategies to structure-performance relationships. Ultimately, with the aim of realizing the practical application of NFRAs in OSCs, we discuss the current challenges and future directions in terms of achieving high performance and low synthetic complexity simultaneously. These discussions provide valuable insights into the development of new NFRAs. LESS Full articleReview|Published on: 30 Oct 2021 -
Recent advances in anion-derived SEIs for fast-charging and stable lithium batteries
Energy Mater 2021;1:100013. DOI: 10.20517/energymater.2021.17AbstractThe construction of stable and reliable electrode interfaces is one of the key scientific issues ... MOREThe construction of stable and reliable electrode interfaces is one of the key scientific issues widely encountered by the battery community. An anion-derived solid electrolyte interphase (SEI) has been recently reported to outperform the traditional solvent-rich SEI in inhibiting side reactions, motivating ion transport and regulating electrode reactions in working Li batteries. Here, we first explicitly introduce the fundamental characteristics of anion-derived SEIs and then concisely present novel developments in electrolyte chemistry involving highly concentrated, localized highly concentrated and weakly solvating electrolytes, which facilitate the formation of anion-derived SEIs on anodes. The critical significance of these SEIs for building fast-charging and stable Li batteries is particularly highlighted. Finally, we outline the future challenges of designing Li metal interfaces to further enhance the cycling reversibility and lifespan of working batteries. LESS Full articleReview|Published on: 22 Nov 2021 -
Critical advances in re-engineering the cathode-electrolyte interface in alkali metal-oxygen batteries
Energy Mater 2021;1:100011. DOI: 10.20517/energymater.2021.15AbstractDue to its porous structure and special reaction characteristics, the cathode-electrolyte interface in alkali metal-oxygen ... MOREDue to its porous structure and special reaction characteristics, the cathode-electrolyte interface in alkali metal-oxygen batteries (AMOBs) has a substantial impact on their electrochemical performance. However, in traditional sandwich-like battery structures, the reaction position in the cathode is restricted to the finite planar cathode-electrolyte interface, leading to AMOBs with limited performance. As a result, a growing number of research studies have sought to re-engineer the cathode-electrolyte interface to enhance the performance of AMOBs. This review summarizes the latest methods published in recent years in this field and compares a variety of different techniques. Regardless of the method used, the ultimate goal is to expand the cathode-electrolyte interface to create more triple reaction activity sites for ions, oxygen and electrons. The most important performance improvement of AMOBs is reflected by the increased specific capacity. Additional challenges valuable for the further development of alkali metal-oxygen batteries are also discussed LESS Full articleReview|Published on: 31 Oct 2021
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Recent progress of sulfide electrolytes for all-solid-state lithium batteries
Review|Published on: 28 Feb 2022 -
Recent advances and perspectives of microsized alloying-type porous anode materials in high-performance Li- and Na-ion batteries
Review|Published on: 14 Jun 2022 -
Recent advances in photocatalytic renewable energy production
Review|Published on: 29 Jan 2022 -
Design of Zn anode protection materials for mild aqueous Zn-ion batteries
Review|Published on: 24 Apr 2022 -
Solidification for solid-state lithium batteries with high energy density and long cycle life
Review|Published on: 24 Apr 2022
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Recent progress of multilayer polymer electrolytes for lithium batteries
Review|Published on: 14 Feb 2023 -
Ionic conductivity and mechanical properties of the solid electrolyte interphase in lithium metal batteries
Mini Review|Published on: 8 Feb 2023 -
Zn-based batteries for energy storage
Review|Published on: 13 Feb 2023
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About The Journal
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ISSN
2770-5900 (Online)
Publisher
OAE Publishing Inc.
Article Processing Charges
$1200
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Editors-in-Chief
Yuping Wu
Bin Zhu
Publishing Model
Gold Open Access
Copyright
Copyright is retained by author(s)
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Publication Frequency
Bimonthly
Indexing
Open Archives
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Portico
All published articles are preserved here permanently:
https://www.portico.org/publishers/oae/