1
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Parida S, Dobley A, Carter CB, Dongare AM. Phase engineering of layered anode materials during ion-intercalation in Van der Waal heterostructures. Sci Rep 2023; 13:5408. [PMID: 37012258 PMCID: PMC10070316 DOI: 10.1038/s41598-023-31342-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 03/10/2023] [Indexed: 04/05/2023] Open
Abstract
Transition metal dichalcogenides (TMDs) are a class of 2D materials demonstrating promising properties, such as high capacities and cycling stabilities, making them strong candidates to replace graphitic anodes in lithium-ion batteries. However, certain TMDs, for instance, MoS2, undergo a phase transformation from 2H to 1T during intercalation that can affect the mobility of the intercalating ions, the anode voltage, and the reversible capacity. In contrast, select TMDs, for instance, NbS2 and VS2, resist this type of phase transformation during Li-ion intercalation. This manuscript uses density functional theory simulations to investigate the phase transformation of TMD heterostructures during Li-, Na-, and K-ion intercalation. The simulations suggest that while stacking MoS2 layers with NbS2 layers is unable to limit this 2H → 1T transformation in MoS2 during Li-ion intercalation, the interfaces effectively stabilize the 2H phase of MoS2 during Na- and K-ion intercalation. However, stacking MoS2 layers with VS2 is able to suppress the 2H → 1T transformation of MoS2 during the intercalation of Li, Na, and K-ions. The creation of TMD heterostructures by stacking MoS2 with layers of non-transforming TMDs also renders theoretical capacities and electrical conductivities that are higher than that of bulk MoS2.
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Affiliation(s)
- Shayani Parida
- Department of Materials Science and Engineering, University of Connecticut, Storrs, CT, USA
| | | | - C Barry Carter
- Department of Chemical and Biomolecular Engineering, University of Connecticut, Storrs, CT, USA
- Center for Integrated Nanotechnologies (CINT), Sandia National Laboratories, Albuquerque, NM, USA
| | - Avinash M Dongare
- Department of Materials Science and Engineering, University of Connecticut, Storrs, CT, USA.
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2
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Wen P, Wang H, Wang X, Wang H, Bai Y, Yang Z. Exploring the physicochemical role of Pd dopant in promoting Li-ion diffusion dynamics and storage performance of NbS 2 at the atomic scale. Phys Chem Chem Phys 2022; 24:14877-14885. [DOI: 10.1039/d2cp01340a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The two-dimensional layered niobium disulfide (NbS2), as a kind of anode material for Li-ion batteries, has received great attention because of its excellent electronic conductivity and structural stability.
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Affiliation(s)
- Piaopiao Wen
- Key Laboratory of Low Dimensional Materials & Application Technology of Ministry of Education, School of Materials Science and Engineering, Xiangtan University, Xiangtan, 411105, Hunan, China
| | - Huangkai Wang
- Key Laboratory of Low Dimensional Materials & Application Technology of Ministry of Education, School of Materials Science and Engineering, Xiangtan University, Xiangtan, 411105, Hunan, China
| | - Xianyou Wang
- National Base for International Science & Technology Cooperation, National-Local Joint Engineering Laboratory for Key Materials of New Energy Storage Battery, Hunan Province Key Laboratory of Electrochemical Energy Storage and Conversion, School of Chemistry, Xiangtan University, Xiangtan, 411105, Hunan, China
| | - Haibo Wang
- NanChang JiaoTong Institute, Nanchang, 330100, Jiangxi, China
| | - Yansong Bai
- National Base for International Science & Technology Cooperation, National-Local Joint Engineering Laboratory for Key Materials of New Energy Storage Battery, Hunan Province Key Laboratory of Electrochemical Energy Storage and Conversion, School of Chemistry, Xiangtan University, Xiangtan, 411105, Hunan, China
| | - Zhenhua Yang
- Key Laboratory of Low Dimensional Materials & Application Technology of Ministry of Education, School of Materials Science and Engineering, Xiangtan University, Xiangtan, 411105, Hunan, China
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3
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Gombotz M, Hogrefe K, Zettl R, Gadermaier B, Wilkening HMR. Fuzzy logic: about the origins of fast ion dynamics in crystalline solids. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2021; 379:20200434. [PMID: 34628947 PMCID: PMC8503637 DOI: 10.1098/rsta.2020.0434] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 06/07/2021] [Indexed: 05/27/2023]
Abstract
Nuclear magnetic resonance offers a wide range of tools to analyse ionic jump processes in crystalline and amorphous solids. Both high-resolution and time-domain [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text] NMR helps throw light on the origins of rapid self-diffusion in materials being relevant for energy storage. It is well accepted that [Formula: see text] ions are subjected to extremely slow exchange processes in compounds with strong site preferences. The loss of this site preference may lead to rapid cation diffusion, as is also well known for glassy materials. Further examples that benefit from this effect include, e.g. cation-mixed, high-entropy fluorides [Formula: see text], Li-bearing garnets ([Formula: see text]) and thiophosphates such as [Formula: see text]. In non-equilibrium phases site disorder, polyhedra distortions, strain and the various types of defects will affect both the activation energy and the corresponding attempt frequencies. Whereas in [Formula: see text] ([Formula: see text]) cation mixing influences F anion dynamics, in [Formula: see text] ([Formula: see text]) the potential landscape can be manipulated by anion site disorder. On the other hand, in the mixed conductor [Formula: see text] cation-cation repulsions immediately lead to a boost in [Formula: see text] diffusivity at the early stages of chemical lithiation. Finally, rapid diffusion is also expected for materials that are able to guide the ions along (macroscopic) pathways with confined (or low-dimensional) dimensions, as is the case in layer-structured [Formula: see text] or [Formula: see text]. Diffusion on fractal systems complements this type of diffusion. This article is part of the Theo Murphy meeting issue 'Understanding fast-ion conduction in solid electrolytes'.
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Affiliation(s)
- M. Gombotz
- Institute for Chemistry and Technology of Materials, Christian Doppler Laboratory for Lithium Batteries, Graz University of Technology (NAWI Graz), Stremayrgasse, 9, 8010 Graz, Austria
| | - K. Hogrefe
- Institute for Chemistry and Technology of Materials, Christian Doppler Laboratory for Lithium Batteries, Graz University of Technology (NAWI Graz), Stremayrgasse, 9, 8010 Graz, Austria
| | - R. Zettl
- Institute for Chemistry and Technology of Materials, Christian Doppler Laboratory for Lithium Batteries, Graz University of Technology (NAWI Graz), Stremayrgasse, 9, 8010 Graz, Austria
| | - B. Gadermaier
- Institute for Chemistry and Technology of Materials, Christian Doppler Laboratory for Lithium Batteries, Graz University of Technology (NAWI Graz), Stremayrgasse, 9, 8010 Graz, Austria
| | - H. Martin. R. Wilkening
- Institute for Chemistry and Technology of Materials, Christian Doppler Laboratory for Lithium Batteries, Graz University of Technology (NAWI Graz), Stremayrgasse, 9, 8010 Graz, Austria
- ALISTORE – European Research Institute, CNRS FR3104, Hub de l’Energie, Rue Baudelocque, 80039 Amiens, France
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4
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Hogrefe K, Minafra N, Zeier WG, Wilkening HMR. Tracking Ions the Direct Way: Long-Range Li + Dynamics in the Thio-LISICON Family Li 4MCh 4 (M = Sn, Ge; Ch = S, Se) as Probed by 7Li NMR Relaxometry and 7Li Spin-Alignment Echo NMR. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2021; 125:2306-2317. [PMID: 33584937 PMCID: PMC7876753 DOI: 10.1021/acs.jpcc.0c10224] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 01/13/2021] [Indexed: 05/03/2023]
Abstract
Solid electrolytes are key elements for next-generation energy storage systems. To design powerful electrolytes with high ionic conductivity, we need to improve our understanding of the mechanisms that are at the heart of the rapid ion exchange processes in solids. Such an understanding also requires evaluation and testing of methods not routinely used to characterize ion conductors. Here, the ternary Li4MCh4 system (M = Ge, Sn; Ch = Se, S) provides model compounds to study the applicability of 7Li nuclear magnetic resonance (NMR) spin-alignment echo (SAE) spectroscopy to probe slow Li+ exchange processes. Whereas the exact interpretation of conventional spin-lattice relaxation data depends on models, SAE NMR offers a model-independent, direct access to motional correlation rates. Indeed, the jump rates and activation energies deduced from time-domain relaxometry data perfectly agree with results from 7Li SAE NMR. In particular, long-range Li+ diffusion in polycrystalline Li4SnS4 as seen by NMR in a dynamic range covering 6 orders of magnitude is determined by an activation energy of E a = 0.55 eV and a pre-exponential factor of 3 × 1013 s-1. The variation in E a and 1/τ0 is related to the LiCh4 volume that changes within the four Li4MCh4 compounds studied. The corresponding volume of Li4SnS4 seems to be close to optimum for Li+ diffusivity.
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Affiliation(s)
- Katharina Hogrefe
- Institute
of Chemistry and Technology of Materials, Graz University of Technology (NAWI Graz), Stremayrgasse 9, A-8010 Graz, Austria
| | - Nicolò Minafra
- Institute
of Inorganic and Analytical Chemistry, University
of Münster, Correnstrasse
30, D-48149 Münster, Germany
| | - Wolfgang G. Zeier
- Institute
of Inorganic and Analytical Chemistry, University
of Münster, Correnstrasse
30, D-48149 Münster, Germany
| | - H. Martin R. Wilkening
- Institute
of Chemistry and Technology of Materials, Graz University of Technology (NAWI Graz), Stremayrgasse 9, A-8010 Graz, Austria
- Email
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5
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Hiebl C, Loch P, Brinek M, Gombotz M, Gadermaier B, Heitjans P, Breu J, Wilkening HMR. Rapid Low-Dimensional Li + Ion Hopping Processes in Synthetic Hectorite-Type Li 0.5[Mg 2.5Li 0.5]Si 4O 10F 2. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2020; 32:7445-7457. [PMID: 32952297 PMCID: PMC7499405 DOI: 10.1021/acs.chemmater.0c02460] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 08/05/2020] [Indexed: 06/01/2023]
Abstract
Understanding the origins of fast ion transport in solids is important to develop new ionic conductors for batteries and sensors. Nature offers a rich assortment of rather inspiring structures to elucidate these origins. In particular, layer-structured materials are prone to show facile Li+ transport along their inner surfaces. Here, synthetic hectorite-type Li0.5[Mg2.5Li0.5]Si4O10F2, being a phyllosilicate, served as a model substance to investigate Li+ translational ion dynamics by both broadband conductivity spectroscopy and diffusion-induced 7Li nuclear magnetic resonance (NMR) spin-lattice relaxation experiments. It turned out that conductivity spectroscopy, electric modulus data, and NMR are indeed able to detect a rapid 2D Li+ exchange process governed by an activation energy as low as 0.35 eV. At room temperature, the bulk conductivity turned out to be in the order of 0.1 mS cm-1. Thus, the silicate represents a promising starting point for further improvements by crystal chemical engineering. To the best of our knowledge, such a high Li+ ionic conductivity has not been observed for any silicate yet.
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Affiliation(s)
- Caroline Hiebl
- Institute
for Chemistry and Technology of Materials, and Christian Doppler Laboratory
for Lithium Batteries, Graz University of
Technology, Stremayrgasse 9, Graz 8010, Austria
| | - Patrick Loch
- Department
of Chemistry and Bavarian Center for Battery Technology, University of Bayreuth, Universitätsstraße 30, Bayreuth 95447, Germany
| | - Marina Brinek
- Institute
for Chemistry and Technology of Materials, and Christian Doppler Laboratory
for Lithium Batteries, Graz University of
Technology, Stremayrgasse 9, Graz 8010, Austria
| | - Maria Gombotz
- Institute
for Chemistry and Technology of Materials, and Christian Doppler Laboratory
for Lithium Batteries, Graz University of
Technology, Stremayrgasse 9, Graz 8010, Austria
| | - Bernhard Gadermaier
- Institute
for Chemistry and Technology of Materials, and Christian Doppler Laboratory
for Lithium Batteries, Graz University of
Technology, Stremayrgasse 9, Graz 8010, Austria
| | - Paul Heitjans
- Institute
of Physical Chemistry and Electrochemistry, Leibniz University Hannover, Callinstraße 3-3a, Hannover 30167, Germany
| | - Josef Breu
- Department
of Chemistry and Bavarian Center for Battery Technology, University of Bayreuth, Universitätsstraße 30, Bayreuth 95447, Germany
| | - H. Martin. R. Wilkening
- Institute
for Chemistry and Technology of Materials, and Christian Doppler Laboratory
for Lithium Batteries, Graz University of
Technology, Stremayrgasse 9, Graz 8010, Austria
- Alistore−ERI
European Research Institute, CNRS FR3104, Hub de l’Energie, Rue Baudelocque, Amiens F-80039, France
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6
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Gao Y, Nolan AM, Du P, Wu Y, Yang C, Chen Q, Mo Y, Bo SH. Classical and Emerging Characterization Techniques for Investigation of Ion Transport Mechanisms in Crystalline Fast Ionic Conductors. Chem Rev 2020; 120:5954-6008. [DOI: 10.1021/acs.chemrev.9b00747] [Citation(s) in RCA: 81] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yirong Gao
- University of Michigan−Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University, Shanghai CN-200240, China
| | - Adelaide M. Nolan
- Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Peng Du
- University of Michigan−Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University, Shanghai CN-200240, China
| | - Yifan Wu
- University of Michigan−Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University, Shanghai CN-200240, China
| | - Chao Yang
- University of Michigan−Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University, Shanghai CN-200240, China
| | - Qianli Chen
- University of Michigan−Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University, Shanghai CN-200240, China
| | - Yifei Mo
- Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, United States
- Maryland Energy Innovation Institute, University of Maryland, College Park, Maryland 20742, United States
| | - Shou-Hang Bo
- University of Michigan−Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University, Shanghai CN-200240, China
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7
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Gombotz M, Lunghammer S, Breuer S, Hanzu I, Preishuber-Pflügl F, Wilkening HMR. Spatial confinement – rapid 2D F− diffusion in micro- and nanocrystalline RbSn2F5. Phys Chem Chem Phys 2019; 21:1872-1883. [PMID: 30632556 DOI: 10.1039/c8cp07206j] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
NMR and conductivity spectroscopy reveal 2D diffusion in both microcrystalline and nanocrystalline RbSn2F5.
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Affiliation(s)
- Maria Gombotz
- Christian Doppler Laboratory for Lithium Batteries, and Institute for Chemistry and Technology of Materials
- Graz University of Technology (NAWI Graz)
- 8010 Graz
- Austria
| | - Sarah Lunghammer
- Christian Doppler Laboratory for Lithium Batteries, and Institute for Chemistry and Technology of Materials
- Graz University of Technology (NAWI Graz)
- 8010 Graz
- Austria
| | - Stefan Breuer
- Christian Doppler Laboratory for Lithium Batteries, and Institute for Chemistry and Technology of Materials
- Graz University of Technology (NAWI Graz)
- 8010 Graz
- Austria
| | - Ilie Hanzu
- Christian Doppler Laboratory for Lithium Batteries, and Institute for Chemistry and Technology of Materials
- Graz University of Technology (NAWI Graz)
- 8010 Graz
- Austria
- Alistore-ERI European Research Institute
| | - Florian Preishuber-Pflügl
- Christian Doppler Laboratory for Lithium Batteries, and Institute for Chemistry and Technology of Materials
- Graz University of Technology (NAWI Graz)
- 8010 Graz
- Austria
| | - H. Martin R. Wilkening
- Christian Doppler Laboratory for Lithium Batteries, and Institute for Chemistry and Technology of Materials
- Graz University of Technology (NAWI Graz)
- 8010 Graz
- Austria
- Alistore-ERI European Research Institute
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8
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Breuer S, Wilkening M. Mismatch in cation size causes rapid anion dynamics in solid electrolytes: the role of the Arrhenius pre-factor. Dalton Trans 2018; 47:4105-4117. [DOI: 10.1039/c7dt04487a] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Mixed (Ba,Ca)F2 reveals highly correlated F anion diffusion in disordered potentials landscapes.
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Affiliation(s)
- Stefan Breuer
- Christian Doppler Laboratory for Lithium Batteries and Institute for Chemistry and Technology of Materials
- Graz University of Technology (NAWI Graz)
- 8010 Graz
- Austria
| | - Martin Wilkening
- Christian Doppler Laboratory for Lithium Batteries and Institute for Chemistry and Technology of Materials
- Graz University of Technology (NAWI Graz)
- 8010 Graz
- Austria
- ALISTORE-ERI European Research Institute
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9
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Volgmann K, Epp V, Langer J, Stanje B, Heine J, Nakhal S, Lerch M, Wilkening M, Heitjans P. Solid-State NMR to Study Translational Li Ion Dynamics in Solids with Low-Dimensional Diffusion Pathways. Z PHYS CHEM 2017. [DOI: 10.1515/zpch-2017-0952] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Fundamental research on lithium ion dynamics in solids is important to develop functional materials for, e.g. sensors or energy storage systems. In many cases a comprehensive understanding is only possible if experimental data are compared with predictions from diffusion models. Nuclear magnetic resonance (NMR), besides other techniques such as mass tracer or conductivity measurements, is known as a versatile tool to investigate ion dynamics. Among the various time-domain NMR techniques, NMR relaxometry, in particular, serves not only to measure diffusion parameters, such as jump rates and activation energies, it is also useful to collect information on the dimensionality of the underlying diffusion process. The latter is possible if both the temperature and, even more important, the frequency dependence of the diffusion-induced relaxation rates of actually polycrystalline materials is analyzed. Here we present some recent systematic relaxometry case studies using model systems that exhibit spatially restricted Li ion diffusion. Whenever possible we compare our results with data from other techniques as well as current relaxation models developed for 2D and 1D diffusion. As an example, 2D ionic motion has been verified for the hexagonal form of LiBH4; in the high-temperature limit the diffusion-induced 7Li NMR spin-lattice relaxation rates follow a logarithmic frequency dependence as is expected from models introduced for 2D diffusion. A similar behavior has been found for Li
x
NbS2. In Li12Si7 a quasi-1D diffusion process seems to be present that is characterized by a square root frequency dependence and a temperature behavior of the 7Li NMR spin-lattice relaxation rates as predicted. Most likely, parts of the Li ions diffuse along the Si5 rings that form chains in the Zintl phase.
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Affiliation(s)
- Kai Volgmann
- Institute of Physical Chemistry and Electrochemistry , Leibniz Universität Hannover , Callinstr. 3 – 3a, D-30167 Hannover , Germany
- ZFM – Center for Solid State Chemistry and New Materials , Leibniz Universität Hannover , Callinstr. 3 – 3a, D-30167 Hannover , Germany
| | - Viktor Epp
- Institute of Physical Chemistry and Electrochemistry , Leibniz Universität Hannover , Callinstr. 3 – 3a, D-30167 Hannover , Germany
- Institute of Chemistry and Technology of Materials, Christian Doppler Laboratory for Lithium Batteries , Graz University of Technology (NAWI Graz) , Stremayrgasse 9 , A-8010 Graz , Austria
| | - Julia Langer
- Institute of Chemistry and Technology of Materials, Christian Doppler Laboratory for Lithium Batteries , Graz University of Technology (NAWI Graz) , Stremayrgasse 9 , A-8010 Graz , Austria
| | - Bernhard Stanje
- Institute of Chemistry and Technology of Materials, Christian Doppler Laboratory for Lithium Batteries , Graz University of Technology (NAWI Graz) , Stremayrgasse 9 , A-8010 Graz , Austria
| | - Jessica Heine
- Institute of Physical Chemistry and Electrochemistry , Leibniz Universität Hannover , Callinstr. 3 – 3a, D-30167 Hannover , Germany
- ZFM – Center for Solid State Chemistry and New Materials , Leibniz Universität Hannover , Callinstr. 3 – 3a, D-30167 Hannover , Germany
| | - Suliman Nakhal
- Institut für Chemie, Sekr. C2 , Technische Universität Berlin , Straße des 17. Juni 135 , D-10623 Berlin , Germany
| | - Martin Lerch
- Institut für Chemie, Sekr. C2 , Technische Universität Berlin , Straße des 17. Juni 135 , D-10623 Berlin , Germany
| | - Martin Wilkening
- Institute of Physical Chemistry and Electrochemistry , Leibniz Universität Hannover , Callinstr. 3 – 3a, D-30167 Hannover , Germany
- Institute of Chemistry and Technology of Materials, Christian Doppler Laboratory for Lithium Batteries , Graz University of Technology (NAWI Graz) , Stremayrgasse 9 , A-8010 Graz , Austria
| | - Paul Heitjans
- Institute of Physical Chemistry and Electrochemistry , Leibniz Universität Hannover , Callinstr. 3 – 3a, D-30167 Hannover , Germany
- ZFM – Center for Solid State Chemistry and New Materials , Leibniz Universität Hannover , Callinstr. 3 – 3a, D-30167 Hannover , Germany
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10
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Prutsch D, Breuer S, Uitz M, Bottke P, Langer J, Lunghammer S, Philipp M, Posch P, Pregartner V, Stanje B, Dunst A, Wohlmuth D, Brandstätter H, Schmidt W, Epp V, Chadwick A, Hanzu I, Wilkening M. Nanostructured Ceramics: Ionic Transport and Electrochemical Activity. ACTA ACUST UNITED AC 2017. [DOI: 10.1515/zpch-2016-0924] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractCeramics with nm-sized dimensions are widely used in various applications such as batteries, fuel cells or sensors. Their oftentimes superior electrochemical properties as well as their capabilities to easily conduct ions are, however, not completely understood. Depending on the method chosen to prepare the materials, nanostructured ceramics may be equipped with a large area fraction of interfacial regions that exhibit structural disorder. Elucidating the relationship between microscopic disorder and ion dynamics as well as electrochemical performance is necessary to develop new functionalized materials. Here, we highlight some of the very recent studies on ion transport and electrochemical properties of nanostructured ceramics. Emphasis is put on TiO
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11
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12
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Peng Q, Wang Z, Sa B, Wu B, Sun Z. Blue Phosphorene/MS2 (M = Nb, Ta) Heterostructures As Promising Flexible Anodes for Lithium-Ion Batteries. ACS APPLIED MATERIALS & INTERFACES 2016; 8:13449-57. [PMID: 27165567 DOI: 10.1021/acsami.6b03368] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
The idea of forming van der Waals (vdW) heterostructures by integrating various two-dimensional materials breaks the limitation of the restricted properties of single material systems. In this work, the electronic structure modulation, stability, entire stress response and the Li adsorption properties of heterostructures by combining blue phosphorene (BlueP) and MS2 (M = Nb, Ta) together were systematically investigated using first-principles calculations based on vdW corrected density functional theory. We revealed that BlueP/MS2 vdW heterostructures possess good structural stability with negative formation energy, enhanced electrical conductivity, improved mechanical flexibility (ultimate strain >17%) and high-capacity (528.257 mAhg(-1) for BlueP/NbS2). The results suggest that BlueP/NbS2 and BlueP/TaS2 heterostructures are ideal candidates used as promising flexible electrode for high recycling rate and portable lithium-ion batteries, which satisfy the requirement of next-generation flexible energy storage and conversion devices.
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Affiliation(s)
- Qiong Peng
- Multiscale Computational Materials Facility, College of Materials Science and Engineering, Fuzhou University , Fuzhou 350100, P. R. China
- Key Laboratory of Eco-materials Advanced Technology (Fuzhou University), Fujian Province University , Fuzhou 350100, P. R. China
| | - Zhenyu Wang
- Multiscale Computational Materials Facility, College of Materials Science and Engineering, Fuzhou University , Fuzhou 350100, P. R. China
- Key Laboratory of Eco-materials Advanced Technology (Fuzhou University), Fujian Province University , Fuzhou 350100, P. R. China
| | - Baisheng Sa
- Multiscale Computational Materials Facility, College of Materials Science and Engineering, Fuzhou University , Fuzhou 350100, P. R. China
- Key Laboratory of Eco-materials Advanced Technology (Fuzhou University), Fujian Province University , Fuzhou 350100, P. R. China
| | - Bo Wu
- Multiscale Computational Materials Facility, College of Materials Science and Engineering, Fuzhou University , Fuzhou 350100, P. R. China
- Key Laboratory of Eco-materials Advanced Technology (Fuzhou University), Fujian Province University , Fuzhou 350100, P. R. China
| | - Zhimei Sun
- School of Materials Science and Engineering, and Center for Integrated Computational Materials Engineering, International Research Institute for Multidisciplinary Science, Beihang University , Beijing 100191, P. R. China
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13
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Das S, Dutta D, Araujo RB, Chakraborty S, Ahuja R, Bhattacharyya AJ. Probing the pseudo-1-D ion diffusion in lithium titanium niobate anode for Li-ion battery. Phys Chem Chem Phys 2016; 18:22323-30. [DOI: 10.1039/c6cp04488c] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Comprehensive understanding of the charge transport mechanism in the intrinsic structure of an electrode material is essential in accounting for its electrochemical performance.
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Affiliation(s)
- Suman Das
- Solid State and Structural Chemistry Unit
- Indian Institute of Science
- Bangalore-560012
- India
| | - Dipak Dutta
- Solid State and Structural Chemistry Unit
- Indian Institute of Science
- Bangalore-560012
- India
| | - Rafael B. Araujo
- Applied Materials Physics
- Department of Materials and Engineering
- Royal Institute of Technology (KTH)
- S-100 44 Stockholm
- Sweden
| | - Sudip Chakraborty
- Condensed Matter Theory Group
- Department of Physics and Astronomy
- Uppsala University
- S-75120 Uppsala
- Sweden
| | - Rajeev Ahuja
- Condensed Matter Theory Group
- Department of Physics and Astronomy
- Uppsala University
- S-75120 Uppsala
- Sweden
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