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Cheng W, Liu J, Hu J, Peng W, Niu G, Li J, Cheng Y, Feng X, Fang L, Wang MS, Redfern SAT, Tang M, Wang G, Gou H. Pressure-Stabilized High-Entropy (FeCoNiCuRu)S 2 Sulfide Anode toward Simultaneously Fast and Durable Lithium/Sodium Ion Storage. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2301915. [PMID: 37189236 DOI: 10.1002/smll.202301915] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 04/26/2023] [Indexed: 05/17/2023]
Abstract
Pressure-stabilized high-entropy sulfide (FeCoNiCuRu)S2 (HES) is proposed as an anode material for fast and long-term stable lithium/sodium storage performance (over 85% retention after 15 000 cycles @10 A g-1 ). Its superior electrochemical performance is strongly related to the increased electrical conductivity and slow diffusion characteristics of entropy-stabilized HES. The reversible conversion reaction mechanism, investigated by ex-situ XRD, XPS, TEM, and NMR, further confirms the stability of the host matrix of HES after the completion of the whole conversion process. A practical demonstration of assembled lithium/sodium capacitors also confirms the high energy/power density and long-term stability (retention of 92% over 15 000 cycles @5 A g-1 ) of this material. The findings point to a feasible high-pressure route to realize new high-entropy materials for optimized energy storage performance.
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Affiliation(s)
- Wenbo Cheng
- Center for High Pressure Science & Technology Advanced Research, Beijing, 100193, China
| | - Jie Liu
- Center for High Pressure Science & Technology Advanced Research, Beijing, 100193, China
| | - Jun Hu
- Center for High Pressure Science & Technology Advanced Research, Beijing, 100193, China
| | - Wenfeng Peng
- Center for High Pressure Science & Technology Advanced Research, Beijing, 100193, China
| | - Guoliang Niu
- Center for High Pressure Science & Technology Advanced Research, Beijing, 100193, China
- Key Laboratory for Neutron Physics, Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, Sichuan, 621999, China
| | - Junkai Li
- Center for High Pressure Science & Technology Advanced Research, Beijing, 100193, China
| | - Yong Cheng
- State Key Lab of Physical Chemistry of Solid Surfaces, College of Materials, Xiamen University, Xiamen, Fujian, 361005, China
| | - Xiaolei Feng
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Leiming Fang
- Key Laboratory for Neutron Physics, Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, Sichuan, 621999, China
| | - Ming-Sheng Wang
- State Key Lab of Physical Chemistry of Solid Surfaces, College of Materials, Xiamen University, Xiamen, Fujian, 361005, China
| | - Simon A T Redfern
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
- Asian School of the Environment, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Mingxue Tang
- Center for High Pressure Science & Technology Advanced Research, Beijing, 100193, China
| | - Gongkai Wang
- School of Material Science and Engineering, Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology, Hebei University of Technology, Tianjin, 300130, China
| | - Huiyang Gou
- Center for High Pressure Science & Technology Advanced Research, Beijing, 100193, China
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van Dinter J, Indris S, Etter M, Cibin G, Bensch W. Influence of the Cation on the Reaction Mechanism of Sodium Uptake and Release in Bivalent Transition Metal Thiophosphate Anodes: A Case Study of Fe2P2S6. Z Anorg Allg Chem 2022. [DOI: 10.1002/zaac.202200227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | | | | | | | - Wolfgang Bensch
- Christian-Albrechts-Universität zu Kiel: Christian-Albrechts-Universitat zu Kiel Institut für Anorganische Chemie 24098 Kiel GERMANY
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Is there a common reaction pathway for chromium sulfides as anodes in sodium-ion batteries? A case study about sodium storage properties of MCr2S4 (M = Cr, Ti, Fe). J Solid State Electrochem 2022. [DOI: 10.1007/s10008-022-05246-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Abstract
We present new insights into the electrochemical properties of three metal sulfides MCr2S4 (M = Cr, Ti, Fe) probed as anode materials in sodium-ion batteries for the first time. The electrodes deliver decent reversible capacities and good long-term cycle stability, e.g., 470, 375, and 524 mAh g−1 are obtained after 200 cycles applying 0.5 A g−1 for M = Cr, Ti, and Fe, respectively. The reaction mechanisms are investigated via synchrotron-based X-ray powder diffraction and pair distribution function analyses. The highly crystalline educts are decomposed into Na2S nanoparticles and ultra-small metal particles during initial discharge without formation of intermediate NaCrS2 domains as previously reported for CuCrS2 and NiCr2S4. After a full cycle, the structural integrity of MCr2S4 (M = Cr, Ti, Fe) is not recovered. Thus, the Na storage properties are attributed to redox reactions between nanoscopic to X-ray amorphous conversion products with only local atomic correlations M···S/S···S in the charged and M···M/Na···S in the discharged state.
Graphical Abstract
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van Dinter J, Grantz D, Bitter A, Bensch W. A Combined Sodium Intercalation and Copper Extrusion Mechanism in the Thiophosphate Family: CuCrP2S6 as Anode Material in Sodium‐Ion Batteries. ChemElectroChem 2022. [DOI: 10.1002/celc.202200018] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jonas van Dinter
- Christian-Albrechts-Universitat zu Kiel Institut für Anorganische Chemie GERMANY
| | - David Grantz
- Christian-Albrechts-Universitat zu Kiel Institut für Anorganische Chemie GERMANY
| | - Alexander Bitter
- Christian-Albrechts-Universitat zu Kiel Institut für Anorganische Chemie GERMANY
| | - Wolfgang Bensch
- Christian-Albrechts-Universität zu Kiel: Christian-Albrechts-Universitat zu Kiel Institut für Anorganische Chemie 24098 Kiel GERMANY
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Senkale S, Cibin G, Chadwick AV, Bensch W. Synthetically Produced Isocubanite as an Anode Material for Sodium-Ion Batteries: Understanding the Reaction Mechanism During Sodium Uptake and Release. ACS APPLIED MATERIALS & INTERFACES 2021; 13:58552-58565. [PMID: 34846121 DOI: 10.1021/acsami.1c16814] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Bulk isocubanite (CuFe2S3) was synthesized via a multistep high-temperature synthesis and was investigated as an anode material for sodium-ion batteries. CuFe2S3 exhibits an excellent electrochemical performance with a capacity retention of 422 mA h g-1 for more than 1000 cycles at a current rate of 0.5 A g-1 (0.85 C). The complex reaction mechanism of the first cycle was investigated via PXRD and X-ray absorption spectroscopy. At the early stages of Na uptake, CuFe2S3 is converted to form crystalline CuFeS2 and nanocrystalline NaFe1.5S2 simultaneously. By increasing the Na content, Cu+ is reduced to nanocrystalline Cu, followed by the reduction of Fe2+ to amorphous Fe0 while reflections of nanocrystalline Na2S appear. During charging up to -5 Na/f.u., the intermediate NaFe1.5S2 appears again, which transforms in the last step of charging to a new unknown phase. This unknown phase together with NaFe1.5S2 plays a key role in the mechanism for the following cycles, evidenced by the PXRD investigation of the second cycle. Even after 400 cycles, the occurrence of nanocrystalline phases made it possible to gain insights into the alteration of the mechanism, which shows that CuxS phases play an important role in the region of constant specific capacity.
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Affiliation(s)
- Svenja Senkale
- Institute of Inorganic Chemistry, Kiel University, Max-Eyth-Str. 2, 24118 Kiel, Germany
| | - Giannantonio Cibin
- Diamond Light Source (DLS), Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, U.K
| | - Alan V Chadwick
- School of Physical Sciences, Ingram Building, University of Kent, Canterbury CT2 7NH, U.K
| | - Wolfgang Bensch
- Institute of Inorganic Chemistry, Kiel University, Max-Eyth-Str. 2, 24118 Kiel, Germany
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