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Lin J, Schaller M, Indris S, Baran V, Gautam A, Janek J, Kondrakov A, Brezesinski T, Strauss F. Tuning Ion Mobility in Lithium Argyrodite Solid Electrolytes via Entropy Engineering. Angew Chem Int Ed Engl 2024; 63:e202404874. [PMID: 38709977 DOI: 10.1002/anie.202404874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 04/15/2024] [Accepted: 04/29/2024] [Indexed: 05/08/2024]
Abstract
The development of improved solid electrolytes (SEs) plays a crucial role in the advancement of bulk-type solid-state battery (SSB) technologies. In recent years, multicomponent or high-entropy SEs are gaining increased attention for their advantageous charge-transport and (electro)chemical properties. However, a comprehensive understanding of how configurational entropy affects ionic conductivity is largely lacking. Herein we investigate a series of multication-substituted lithium argyrodites with the general formula Li6+x[M1aM2bM3cM4d]S5I, with M being P, Si, Ge, and Sb. Structure-property relationships related to ion mobility are probed using a combination of diffraction techniques, solid-state nuclear magnetic resonance spectroscopy, and charge-transport measurements. We present, to the best of our knowledge, the first experimental evidence of a direct correlation between occupational disorder in the cationic host lattice and lithium transport. By controlling the configurational entropy through compositional design, high bulk ionic conductivities up to 18 mS cm-1 at room temperature are achieved for optimized lithium argyrodites. Our results indicate the possibility of improving ionic conductivity in ceramic ion conductors via entropy engineering, overcoming compositional limitations for the design of advanced electrolytes and opening up new avenues in the field.
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Affiliation(s)
- Jing Lin
- Battery and Electrochemistry Laboratory (BELLA), Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Mareen Schaller
- Institute for Applied Materials-Energy Storage Systems (IAM-ESS), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Sylvio Indris
- Institute for Applied Materials-Energy Storage Systems (IAM-ESS), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Volodymyr Baran
- Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607, Hamburg, Germany
| | - Ajay Gautam
- Section Storage of Electrochemical Energy, Radiation Science and Technology, Faculty of Applied Sciences, Delft University of Technology, Delft, 2629 JB, The Netherlands
| | - Jürgen Janek
- Battery and Electrochemistry Laboratory (BELLA), Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
- Institute of Physical Chemistry & Center for Materials Research (ZfM/LaMa), Justus-Liebig-University Giessen, Heinrich-Buff-Ring 17, 35392, Giessen, Germany
| | - Aleksandr Kondrakov
- Battery and Electrochemistry Laboratory (BELLA), Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
- BASF SE, Carl-Bosch-Str. 38, 67056, Ludwigshafen, Germany
| | - Torsten Brezesinski
- Battery and Electrochemistry Laboratory (BELLA), Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Florian Strauss
- Battery and Electrochemistry Laboratory (BELLA), Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
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Chen Y, Wang P, Truong E, Ogbolu B, Jin Y, Oyekunle I, Liu H, Islam MM, Poudel T, Huang C, Hung I, Gan Z, Hu YY. Superionic Conduction in K 3SbS 4 Enabled by Cl-Modified Anion Lattice. Angew Chem Int Ed Engl 2024:e202408574. [PMID: 38859545 DOI: 10.1002/anie.202408574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Revised: 06/10/2024] [Accepted: 06/10/2024] [Indexed: 06/12/2024]
Abstract
All-solid-state potassium batteries emerge as promising alternatives to lithium batteries, leveraging their high natural abundance and cost-effectiveness. Developing potassium solid electrolytes (SEs) with high room-temperature ionic conductivity is critical for realizing efficient potassium batteries. In this study, we present the synthesis of K2.98Sb0.91S3.53Cl0.47, showcasing a room-temperature ionic conductivity of 0.32 mS/cm and a low activation energy of 0.26 eV. This represents an increase of over two orders of magnitude compared to the parent compound K3SbS4, marking the highest reported ionic conductivity for non-oxide potassium SEs. Solid-state 39K magic-angle-spinning nuclear magnetic resonance on K2.98Sb0.91S3.53Cl0.47 reveals an increased population of mobile K+ ions with fast dynamics. Ab initio molecular dynamics (AIMD) simulations further confirm a delocalized K+ density and significantly enhanced K+ diffusion. This work demonstrates diversification of the anion sublattice as an effective approach to enhance ion transport and highlights K2.98Sb0.91S3.53Cl0.47 as a promising SE for all-solid-state potassium batteries.
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Affiliation(s)
- Yudan Chen
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL 32306, USA
| | - Pengbo Wang
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL 32306, USA
| | - Erica Truong
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL 32306, USA
| | - Bright Ogbolu
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL 32306, USA
| | - Yongkang Jin
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL 32306, USA
| | - Ifeoluwa Oyekunle
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL 32306, USA
| | - Haoyu Liu
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL 32306, USA
| | - M Mahinur Islam
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL 32306, USA
| | - Tej Poudel
- Materials Science and Engineering, Florida State University, Tallahassee, FL 32310, USA
| | - Chen Huang
- Materials Science and Engineering, Florida State University, Tallahassee, FL 32310, USA
| | - Ivan Hung
- Center of Interdisciplinary Magnetic Resonance, National High Magnetic Field Laboratory, Tallahassee, FL 32310, USA
| | - Zhehong Gan
- Center of Interdisciplinary Magnetic Resonance, National High Magnetic Field Laboratory, Tallahassee, FL 32310, USA
| | - Yan-Yan Hu
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL 32306, USA
- Center of Interdisciplinary Magnetic Resonance, National High Magnetic Field Laboratory, Tallahassee, FL 32310, USA
- Materials Science and Engineering, Florida State University, Tallahassee, FL 32310, USA
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Ahammed B, Ertekin E. Configurational Disorder, Strong Anharmonicity, and Coupled Host Dynamics Lead to Superionic Transport in Li 3YCl 6 (LYC). ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2310537. [PMID: 38279784 DOI: 10.1002/adma.202310537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 12/30/2023] [Indexed: 01/28/2024]
Abstract
In superionic crystals, liquid-like ionic diffusivities often come hand-in-hand with ultra-low thermal conductivity and soft vibrational dynamics. However, generalized relationships between ion transport and vibrational dynamics remain elusive due to the diversity of superionic materials and complex underlying mechanisms. Here, the links between vibrational dynamics and ion transport in close-packed lithium halide ion conductor Li3YCl6 (LYC) are examined using a suite of atomistic first-principles methods. It is shown that configurational disorder, lattice anharmonicity, and coupled host-mobile ion vibrational dynamics together induce a transition to the superionic state. Statistical correlations between ionic hops and activation of the distribution of vibrational modes are found. However, typical phenomena associated with superionic conductors such as selective breakdown of zone-boundary soft phonons, or long wavelength transverse acoustic modes as in the 'phonon-liquid-electron crystal' concept, are not present. Instead, anharmonic zone-boundary modes aiding Li diffusion are found to broaden and soften selectively but persist across the superionic transition. These anharmonic modes couple Li ion motion with the vibrations of the flexible close-packed anion framework, which remains stable and facilitates ionic hopping. The results provide insights into how configurational disorder and soft-yet-resilient vibrational modes enable ionic hopping, particularly in 3D close-packed crystals.
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Affiliation(s)
- Ballal Ahammed
- Department of Mechanical Science & Engineering, University of Illinois at Urbana-Champaign, Illinois, 61801, USA
| | - Elif Ertekin
- Department of Mechanical Science & Engineering, University of Illinois at Urbana-Champaign, Illinois, 61801, USA
- Materials Research Laboratory, University of Illinois at Urbana-Champaign, Illinois, 61801, USA
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Zhang S, Zhao F, Su H, Zhong Y, Liang J, Chen J, Zheng ML, Liu J, Chang LY, Fu J, Alahakoon SH, Hu Y, Liu Y, Huang Y, Tu J, Sham TK, Sun X. Cubic Iodide Li x YI 3+x Superionic Conductors through Defect Manipulation for All-Solid-State Li Batteries. Angew Chem Int Ed Engl 2024; 63:e202316360. [PMID: 38243690 DOI: 10.1002/anie.202316360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 01/12/2024] [Accepted: 01/17/2024] [Indexed: 01/21/2024]
Abstract
Halide solid electrolytes (SEs) have attracted significant attention due to their competitive ionic conductivity and good electrochemical stability. Among typical halide SEs (chlorides, bromides, and iodides), substantial efforts have been dedicated to chlorides or bromides, with iodide SEs receiving less attention. Nevertheless, compared with chlorides or bromides, iodides have both a softer Li sublattice and lower reduction limit, which enable iodides to possess potentially high ionic conductivity and intrinsic anti-reduction stability, respectively. Herein, we report a new series of iodide SEs: Lix YI3+x (x=2, 3, 4, or 9). Through synchrotron X-ray/neutron diffraction characterizations and theoretical calculations, we revealed that the Lix YI3+x SEs belong to the high-symmetry cubic structure, and can accommodate abundant vacancies. By manipulating the defects in the iodide structure, balanced Li-ion concentration and generated vacancies enables an optimized ionic conductivity of 1.04 × 10-3 S cm-1 at 25 °C for Li4 YI7 . Additionally, the promising Li-metal compatibility of Li4 YI7 is demonstrated via electrochemical characterizations (particularly all-solid-state Li-S batteries) combined with interface molecular dynamics simulations. Our study on iodide SEs provides deep insights into the relation between high-symmetry halide structures and ionic conduction, which can inspire future efforts to revitalize halide SEs.
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Affiliation(s)
- Shumin Zhang
- Department of Mechanical and Materials Engineering, University of Western Ontario, London, Ontario, N6A 5B9, Canada
| | - Feipeng Zhao
- Department of Mechanical and Materials Engineering, University of Western Ontario, London, Ontario, N6A 5B9, Canada
| | - Han Su
- Department of Mechanical and Materials Engineering, University of Western Ontario, London, Ontario, N6A 5B9, Canada
- State Key Laboratory of Silicon Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province, School of Materials Science & Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Yu Zhong
- State Key Laboratory of Silicon Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province, School of Materials Science & Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Jianwen Liang
- Department of Mechanical and Materials Engineering, University of Western Ontario, London, Ontario, N6A 5B9, Canada
| | - Jiatang Chen
- Cornell High Energy Synchrotron Source, Wilson Laboratory, Cornell University Ithaca, New York, 14853, United States
| | - Matthew Liu Zheng
- Department of Mechanical and Materials Engineering, University of Western Ontario, London, Ontario, N6A 5B9, Canada
| | - Jue Liu
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, United States
| | - Lo-Yueh Chang
- National Synchrotron Radiation Research Centre, 101 Hsin-Ann Road, Hsinchu, 30076, Taiwan
| | - Jiamin Fu
- Department of Mechanical and Materials Engineering, University of Western Ontario, London, Ontario, N6A 5B9, Canada
| | - Sandamini H Alahakoon
- Department of Chemistry, University of Western Ontario, London, Ontario, N6A 5B7, Canada
| | - Yang Hu
- Department of Mechanical and Materials Engineering, University of Western Ontario, London, Ontario, N6A 5B9, Canada
| | - Yu Liu
- Department of Mechanical and Materials Engineering, University of Western Ontario, London, Ontario, N6A 5B9, Canada
- State Key Laboratory of Silicon Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province, School of Materials Science & Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Yining Huang
- Department of Chemistry, University of Western Ontario, London, Ontario, N6A 5B7, Canada
| | - Jiangping Tu
- State Key Laboratory of Silicon Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province, School of Materials Science & Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Tsun-Kong Sham
- Department of Chemistry, University of Western Ontario, London, Ontario, N6A 5B7, Canada
| | - Xueliang Sun
- Department of Mechanical and Materials Engineering, University of Western Ontario, London, Ontario, N6A 5B9, Canada
- Eastern Institute for Advanced Study, Eastern Institute of Technology, Ningbo, Zhejiang, 3150200, P. R. China
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