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Li J, Sui S, Zhou X, Lei K, Yang Q, Chu S, Li L, Zhao Y, Gu M, Chou S, Zheng S. Weakly Coordinating Diluent Modulated Solvation Chemistry for High-Performance Sodium Metal Batteries. Angew Chem Int Ed Engl 2024; 63:e202400406. [PMID: 38491786 DOI: 10.1002/anie.202400406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 03/15/2024] [Accepted: 03/15/2024] [Indexed: 03/18/2024]
Abstract
Diluents have been extensively employed to overcome the disadvantages of high viscosity and sluggish kinetics of high-concentration electrolytes, but generally do not change the pristine solvation structure. Herein, a weakly coordinating diluent, hexafluoroisopropyl methyl ether (HFME), is applied to regulate the coordination of Na+ with diglyme and anion and form a diluent-participated solvate. This unique solvation structure promotes the accelerated decomposition of anions and diluents, with the construction of robust inorganic-rich electrode-electrolyte interphases. In addition, the introduction of HFME reduces the desolvation energy of Na+, improves ionic conductivity, strengthens the antioxidant, and enhances the safety of the electrolyte. As a result, the assembled Na||Na symmetric cell achieves a stable cycle of over 1800 h. The cell of Na||P'2-Na0.67MnO2 delivers a high capacity retention of 87.3 % with a high average Coulombic efficiency of 99.7 % after 350 cycles. This work provides valuable insights into solvation chemistry for advanced electrolyte engineering.
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Affiliation(s)
- Jiaxin Li
- Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology, School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300401, China
| | - Simi Sui
- Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology, School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300401, China
| | - Xunzhu Zhou
- Institute for Carbon Neutralization, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, China
| | - Kaixiang Lei
- Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology, School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300401, China
| | - Qian Yang
- Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology, School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300401, China
| | - Shenxu Chu
- Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology, School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300401, China
| | - Lin Li
- Institute for Carbon Neutralization, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, China
| | - Yuqing Zhao
- Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology, School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300401, China
| | - Mengjia Gu
- Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology, School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300401, China
| | - Shulei Chou
- Institute for Carbon Neutralization, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, China
| | - Shijian Zheng
- Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology, School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300401, China
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2
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Xiang J, Lu YC. Ether-Based High-Voltage Lithium Metal Batteries: The Road to Commercialization. ACS Nano 2024; 18:10726-10737. [PMID: 38602344 PMCID: PMC11044695 DOI: 10.1021/acsnano.4c00110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 03/21/2024] [Accepted: 04/01/2024] [Indexed: 04/12/2024]
Abstract
Ether-based high-voltage lithium metal batteries (HV-LMBs) are drawing growing interest due to their high compatibility with the Li metal anode. However, the commercialization of ether-based HV-LMBs still faces many challenges, including short cycle life, limited safety, and complex failure mechanisms. In this Review, we discuss recent progress achieved in ether-based electrolytes for HV-LMBs and propose a systematic design principle for the electrolyte based on three important parameters: electrochemical performance, safety, and industrial scalability. Finally, we summarize the challenges for the commercial application of ether-based HV-LMBs and suggest a roadmap for future development.
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Affiliation(s)
- Jingwei Xiang
- Electrochemical Energy and Interfaces
Laboratory, Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Shatin, Hong Kong SAR 999077, People’s
Republic of China
| | - Yi-Chun Lu
- Electrochemical Energy and Interfaces
Laboratory, Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Shatin, Hong Kong SAR 999077, People’s
Republic of China
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3
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Yang Y, Li Y, Zhang J, Liu X, Yu H, Wu L, Duan C, Xi Z, Fang R, Zhao Q. Co-Intercalation-Free Graphite Anode Enabled by an Additive Regulated Interphase in an Ether-Based Electrolyte for Low-Temperature Lithium-Ion Batteries. ACS Appl Mater Interfaces 2024; 16:10116-10125. [PMID: 38381070 DOI: 10.1021/acsami.3c17844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/22/2024]
Abstract
Graphite (Gr) anode, which is endowed with high electronic conductivity and low volume expansion after Li-ion intercalation, establishes the basis for the success of rocking-chair Li-ion batteries (LIBs). However, due to the high barrier of the Li-ion desolvation process, sluggish transport of Li ions through the solid electrolyte interphase (SEI) and the high freezing points of electrolytes, the Gr anode still suffers from great loss of capacity and severe polarization at low temperature. Here, 1,2-diethoxyethane (DEE) with an intrinsically wide liquid region and weak solvation ability is applied as an electrolyte solvent for LIBs. By rationally designing the additives of electrolytes, an intact SEI with fast Li-ion conductivity is constructed, enabling the co-intercalation-free Gr anode with long-term stability (91.8% after 500 cycles) and impressive low-temperature characteristics (82.6% capacity retention at -20 °C). Coupled with LiFePO4 and LiNi0.8Mn0.1Co0.1O2 cathodes, the optimized electrolyte also demonstrates low polarization under -20 °C. Our work offers a feasible approach to enable ether-based electrolytes for low-temperature LIBs.
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Affiliation(s)
- Yujie Yang
- Frontiers Science Center for New Organic Matter, Renewable Energy Conversion and Storage Center (RECAST), Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry, Nankai University, Tianjin 300071, China
| | - Yawen Li
- Frontiers Science Center for New Organic Matter, Renewable Energy Conversion and Storage Center (RECAST), Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry, Nankai University, Tianjin 300071, China
| | - Jingwei Zhang
- Frontiers Science Center for New Organic Matter, Renewable Energy Conversion and Storage Center (RECAST), Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry, Nankai University, Tianjin 300071, China
| | - Xu Liu
- Frontiers Science Center for New Organic Matter, Renewable Energy Conversion and Storage Center (RECAST), Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry, Nankai University, Tianjin 300071, China
| | - Huaqing Yu
- Frontiers Science Center for New Organic Matter, Renewable Energy Conversion and Storage Center (RECAST), Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry, Nankai University, Tianjin 300071, China
| | - Lanqing Wu
- Frontiers Science Center for New Organic Matter, Renewable Energy Conversion and Storage Center (RECAST), Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry, Nankai University, Tianjin 300071, China
| | - Chengyao Duan
- Frontiers Science Center for New Organic Matter, Renewable Energy Conversion and Storage Center (RECAST), Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry, Nankai University, Tianjin 300071, China
| | - Zihang Xi
- Frontiers Science Center for New Organic Matter, Renewable Energy Conversion and Storage Center (RECAST), Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry, Nankai University, Tianjin 300071, China
| | - Ruijian Fang
- Frontiers Science Center for New Organic Matter, Renewable Energy Conversion and Storage Center (RECAST), Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry, Nankai University, Tianjin 300071, China
| | - Qing Zhao
- Frontiers Science Center for New Organic Matter, Renewable Energy Conversion and Storage Center (RECAST), Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry, Nankai University, Tianjin 300071, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300192, China
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Shen J, Wu N, Xie W, Li Q, Guo D, Li J, Liu G, Liu X, Mi H. Realizing Ultrafast and Robust Sodium-Ion Storage of Iron Sulfide Enabled by Heteroatomic Doping and Regulable Interface Engineering. Molecules 2023; 28:molecules28093757. [PMID: 37175167 PMCID: PMC10180235 DOI: 10.3390/molecules28093757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 04/14/2023] [Accepted: 04/20/2023] [Indexed: 05/15/2023] Open
Abstract
Fe-based sulfides are a promising type of anode material for sodium-ion batteries (SIBs) due to their high theoretical capacities and affordability. However, these materials often suffer from issues such as capacity deterioration and poor conductivity during practical application. To address these challenges, an N-doped Fe7S8 anode with an N, S co-doped porous carbon framework (PPF-800) was synthesized using a template-assisted method. When serving as an anode for SIBs, it delivers a robust and ultrafast sodium storage performance, with a discharge capacity of 489 mAh g-1 after 500 cycles at 5 A g-1 and 371 mAh g-1 after 1000 cycles at 30 A g-1 in the ether-based electrolyte. This impressive performance is attributed to the combined influence of heteroatomic doping and adjustable interface engineering. The N, S co-doped carbon framework embedded with Fe7S8 nanoparticles effectively addresses the issues of volumetric expansion, reduces the impact of sodium polysulfides, improves intrinsic conductivity, and stimulates the dominant pseudocapacitive contribution (90.3% at 2 mV s-1). Moreover, the formation of a stable solid electrolyte interface (SEI) film by the effect of uniform pore structure in ether-based electrolyte produces a lower transfer resistance during the charge-discharge process, thereby boosting the rate performance of the electrode material. This work expands a facile strategy to optimize the electrochemical performance of other metal sulfides.
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Affiliation(s)
- Jinke Shen
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830017, China
- Key Laboratory of Green Energy Materials of Luoyang, College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, China
| | - Naiteng Wu
- Key Laboratory of Green Energy Materials of Luoyang, College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, China
| | - Wei Xie
- Key Laboratory of Green Energy Materials of Luoyang, College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, China
| | - Qing Li
- Key Laboratory of Green Energy Materials of Luoyang, College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, China
| | - Donglei Guo
- Key Laboratory of Green Energy Materials of Luoyang, College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, China
| | - Jin Li
- Key Laboratory of Green Energy Materials of Luoyang, College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, China
| | - Guilong Liu
- Key Laboratory of Green Energy Materials of Luoyang, College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, China
| | - Xianming Liu
- Key Laboratory of Green Energy Materials of Luoyang, College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, China
| | - Hongyu Mi
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830017, China
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5
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Yin L, Wang M, Xie C, Yang C, Han J, You Y. High-Voltage Cyclic Ether-Based Electrolytes for Low-Temperature Sodium-Ion Batteries. ACS Appl Mater Interfaces 2023; 15:9517-9523. [PMID: 36780508 DOI: 10.1021/acsami.2c23008] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Cyclic ethers are promising solvents for low-temperature electrolytes, but they still suffer from intrinsic poor antioxidant abilities. Until now, ether-based electrolytes have been rarely reported for high-voltage sodium-ion batteries (SIBs) operated under a low-temperature range. Herein, a novel ether-based electrolyte consisting of tetrahydrofuran as the main solvent is proposed and it could be utilized for a high-voltage Na2/3Mn2/3Ni1/3O2 (MN) cathode in a wide-temperature range from -40 to 25 °C. Meanwhile, a thin and robust inorganic component-rich cathode electrolyte interface layer is elaborately introduced on the MN cathode by this tailored electrolyte, resulting in excellent cycle life of MN cathode. Specifically, a capacity retention of 97.2% after 140 cycles could be delivered by MN at 0.3 C at room temperature (RT). Especially at an ultra-low temperature of -40 °C, the initial discharge capacity of MN could still approach 89.3% of that at RT, and the capacity retention is 94.1% at 0.2 C after 100 cycles. This work provides a new insight into the rational design of ether-based electrolytes for high-voltage and stable SIBs operated in a wide-temperature range.
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Affiliation(s)
- Luming Yin
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, Hubei, People's Republic of China
| | - Meilong Wang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, Hubei, People's Republic of China
| | - Can Xie
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, Hubei, People's Republic of China
| | - Chao Yang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, Hubei, People's Republic of China
| | - Jin Han
- International School of Materials Science and Engineering, School of Materials Science and Microelectronics, Wuhan University of Technology, Wuhan 430070, Hubei, People's Republic of China
| | - Ya You
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, Hubei, People's Republic of China
- International School of Materials Science and Engineering, School of Materials Science and Microelectronics, Wuhan University of Technology, Wuhan 430070, Hubei, People's Republic of China
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6
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Liang HJ, Gu ZY, Zhao XX, Guo JZ, Yang JL, Li WH, Li B, Liu ZM, Li WL, Wu XL. Corrigendum: Ether-Based Electrolyte Chemistry Towards High-Voltage and Long-Life Na-Ion Full Batteries. Angew Chem Int Ed Engl 2022; 61:e202200695. [PMID: 35285994 DOI: 10.1002/anie.202200695] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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7
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Liang HJ, Gu ZY, Zhao XX, Guo JZ, Yang JL, Li WH, Li B, Liu ZM, Li WL, Wu XL. Ether-Based Electrolyte Chemistry Towards High-Voltage and Long-Life Na-Ion Full Batteries. Angew Chem Int Ed Engl 2021; 60:26837-26846. [PMID: 34636126 DOI: 10.1002/anie.202112550] [Citation(s) in RCA: 58] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Indexed: 11/06/2022]
Abstract
Although ether-based electrolytes have been extensively applied in anode evaluation of batteries, anodic instability arising from solvent oxidability is always a tremendous obstacle to matching with high-voltage cathodes. Herein, by rational design for solvation configuration, the fully coordinated ether-based electrolyte with strong resistance against oxidation is reported, which remains anodically stable with high-voltage Na3 V2 (PO4 )2 O2 F (NVPF) cathode under 4.5 V (versus Na+ /Na) protected by an effective interphase. The assembled graphite//NVPF full cells display superior rate performance and unprecedented cycling stability. Beyond that, the constructed full cells coupling the high-voltage NVPF cathode with hard carbon anode exhibit outstanding electrochemical performances in terms of high average output voltage up to 3.72 V, long-term cycle life (such as 95 % capacity retention after 700 cycles) and high energy density (247 Wh kg-1 ). In short, the optimized ether-based electrolyte enriches systematic options, the ability to maintain oxidative stability and compatibility with various anodes, exhibiting attractive prospects for application.
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Affiliation(s)
- Hao-Jie Liang
- MOE Key Laboratory for UV Light-Emitting Materials and Technology, Northeast Normal University, Changchun, Jilin, 130024, P. R. China
| | - Zhen-Yi Gu
- MOE Key Laboratory for UV Light-Emitting Materials and Technology, Northeast Normal University, Changchun, Jilin, 130024, P. R. China
| | - Xin-Xin Zhao
- Department of Chemistry, Northeast Normal University, Changchun, Jilin, 130024, P. R. China
| | - Jin-Zhi Guo
- MOE Key Laboratory for UV Light-Emitting Materials and Technology, Northeast Normal University, Changchun, Jilin, 130024, P. R. China
| | - Jia-Lin Yang
- MOE Key Laboratory for UV Light-Emitting Materials and Technology, Northeast Normal University, Changchun, Jilin, 130024, P. R. China
| | - Wen-Hao Li
- MOE Key Laboratory for UV Light-Emitting Materials and Technology, Northeast Normal University, Changchun, Jilin, 130024, P. R. China
| | - Bao Li
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007, P. R. China
| | - Zhi-Ming Liu
- Qingdao University of Science and Technology, Qingdao, Shandong, 260061, China
| | - Wen-Liang Li
- Department of Chemistry, Northeast Normal University, Changchun, Jilin, 130024, P. R. China
| | - Xing-Long Wu
- MOE Key Laboratory for UV Light-Emitting Materials and Technology, Northeast Normal University, Changchun, Jilin, 130024, P. R. China.,Department of Chemistry, Northeast Normal University, Changchun, Jilin, 130024, P. R. China
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He M, Li X, Holmes NG, Li R, Wang J, Yin G, Zuo P, Sun X. Flame-Retardant and Polysulfide-Suppressed Ether-Based Electrolytes for High-Temperature Li-S Batteries. ACS Appl Mater Interfaces 2021; 13:38296-38304. [PMID: 34370436 DOI: 10.1021/acsami.1c09492] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Lithium-sulfur (Li-S) batteries are drawing huge attention as attractive chemical power sources. However, traditional ether-based solvents (DME/DOL) suffer from safety issues at high temperatures and serious parasitic reactions occur between the Li metal anodes and soluble lithium polysulfides (LiPSs). Herein, we propose a polysulfide-suppressed and flame-retardant electrolyte operated at high temperatures by introducing an inert diluent 1,1,2,2-tetrafluoroethyl-2,2,3,3-tetrafluoropropyl (TTE) into the high-concentration electrolyte (HCE). Li dendrites are also efficiently suppressed by the formed LiF-rich protective layer. Furthermore, the shuttle effect is mitigated by the decreased solubility of LiPSs. At 60 °C, Li-S batteries using this nonflammable ether-based electrolyte exhibit a high capacity of 666 mAh g-1 over 100 cycles at a current rate of 0.2C, showing the greatly improved high-temperature performance compared to batteries with traditional ether-based electrolytes. The improved electrochemical performance across a range of temperatures and the enhanced safety suggest that the electrolyte has a great practical prospect for safe Li-S batteries.
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Affiliation(s)
- Mengxue He
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemical Engineering and Technology, Harbin Institute of Technology, Harbin 150001, China
- Department of Mechanical and Materials Engineering, Western University, London, Ontario N6A 5B9, Canada
| | - Xia Li
- Department of Chemical and Materials Engineering, Concordia University, Montreal, Quebec H4B 1R6, Canada
| | - Nathaniel Graham Holmes
- Department of Mechanical and Materials Engineering, Western University, London, Ontario N6A 5B9, Canada
| | - Ruying Li
- Department of Mechanical and Materials Engineering, Western University, London, Ontario N6A 5B9, Canada
| | - Jiajun Wang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemical Engineering and Technology, Harbin Institute of Technology, Harbin 150001, China
| | - Geping Yin
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemical Engineering and Technology, Harbin Institute of Technology, Harbin 150001, China
| | - Pengjian Zuo
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemical Engineering and Technology, Harbin Institute of Technology, Harbin 150001, China
| | - Xueliang Sun
- Department of Mechanical and Materials Engineering, Western University, London, Ontario N6A 5B9, Canada
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Kreissl JJA, Petit J, Oppermann R, Cop P, Gerber T, Joos M, Abert M, Tübke J, Miyazaki K, Abe T, Schröder D. Electrochemical Lithiation/Delithiation of ZnO in 3D-Structured Electrodes: Elucidating the Mechanism and the Solid Electrolyte Interphase Formation. ACS Appl Mater Interfaces 2021; 13:35625-35638. [PMID: 34309361 DOI: 10.1021/acsami.1c06135] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Conversion/alloy active materials, such as ZnO, are one of the most promising candidates to replace graphite anodes in lithium-ion batteries. Besides a high specific capacity (qZnO = 987 mAh g-1), ZnO offers a high lithium-ion diffusion and fast reaction kinetics, leading to a high-rate capability, which is required for the intended fast charging of battery electric vehicles. However, lithium-ion storage in ZnO is accompanied by the formation of lithium-rich solid electrolyte interphase (SEI) layers, immense volume expansion, and a large voltage hysteresis. Nonetheless, ZnO is appealing as an anode material for lithium-ion batteries and is investigated intensively. Surprisingly, the conclusions reported on the reaction mechanism are contradictory and the formation and composition of the SEI are addressed in only a few works. In this work, we investigate lithiation, delithiation, and SEI formation with ZnO in ether-based electrolytes for the first time reported in the literature. The combination of operando and ex situ experiments (cyclic voltammetry, X-ray photoelectron spectroscopy, X-ray diffraction, coupled gas chromatography and mass spectrometry, differential electrochemical mass spectrometry, and scanning electron microscopy) clarifies the misunderstanding of the reaction mechanism. We evidence that the conversion and alloy reaction take place simultaneously inside the bulk of the electrode. Furthermore, we show that a two-layered SEI is formed on the surface. The SEI is decomposed reversibly upon cycling. In the end, we address the issue of the volume expansion and associated capacity fading by incorporating ZnO into a mesoporous carbon network. This approach reduces the capacity fading and yields cells with a specific capacity of above 500 mAh g-1 after 150 cycles.
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Affiliation(s)
- Julian J A Kreissl
- Institute of Physical Chemistry, Justus-Liebig-University Giessen, Heinrich-Buff-Ring 17, D-35392 Giessen, Germany
- Center for Materials Research (ZfM), Justus-Liebig-University Giessen, Heinrich-Buff-Ring 16, D-35392 Giessen, Germany
| | - Jan Petit
- Fraunhofer Institute for Chemical Technology ICT, Joseph-von-Fraunhofer-Straße 7, D-76327 Pfinztal, Germany
| | - Raika Oppermann
- Institute of Physical Chemistry, Justus-Liebig-University Giessen, Heinrich-Buff-Ring 17, D-35392 Giessen, Germany
- Center for Materials Research (ZfM), Justus-Liebig-University Giessen, Heinrich-Buff-Ring 16, D-35392 Giessen, Germany
| | - Pascal Cop
- Institute of Physical Chemistry, Justus-Liebig-University Giessen, Heinrich-Buff-Ring 17, D-35392 Giessen, Germany
- Center for Materials Research (ZfM), Justus-Liebig-University Giessen, Heinrich-Buff-Ring 16, D-35392 Giessen, Germany
| | - Tobias Gerber
- Fraunhofer Institute for Chemical Technology ICT, Joseph-von-Fraunhofer-Straße 7, D-76327 Pfinztal, Germany
| | - Martin Joos
- Fraunhofer Institute for Chemical Technology ICT, Joseph-von-Fraunhofer-Straße 7, D-76327 Pfinztal, Germany
| | - Michael Abert
- Fraunhofer Institute for Chemical Technology ICT, Joseph-von-Fraunhofer-Straße 7, D-76327 Pfinztal, Germany
| | - Jens Tübke
- Fraunhofer Institute for Chemical Technology ICT, Joseph-von-Fraunhofer-Straße 7, D-76327 Pfinztal, Germany
| | - Kohei Miyazaki
- Department of Energy & Hydrocarbon Chemistry, Kyoto University, Nishikyo-ku, 615-8510 Kyoto, Japan
| | - Takeshi Abe
- Department of Energy & Hydrocarbon Chemistry, Kyoto University, Nishikyo-ku, 615-8510 Kyoto, Japan
| | - Daniel Schröder
- Institute of Energy and Process Systems Engineering, Technische Universität Braunschweig, Langer Kamp 19B, D-38106 Braunschweig, Germany
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10
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Pham TD, Lee KK. Simultaneous Stabilization of the Solid/Cathode Electrolyte Interface in Lithium Metal Batteries by a New Weakly Solvating Electrolyte. Small 2021; 17:e2100133. [PMID: 33797203 DOI: 10.1002/smll.202100133] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 03/11/2021] [Indexed: 06/12/2023]
Abstract
So far, the practical application of Li metal batteries has been hindered by the undesirable formation of Li dendrites and low Coulombic efficiencies (CEs). Herein, 1,2-diethoxyethane (DEE) is proposed as a new electrolytic solvent for lithium metal batteries (LMBs), and the performances of 1.0 m LiFSI in DEE are evaluated. Because of the low dielectric constant and dipole moment of DEE, the majority of the FSI- exists in associated states like contact ion pairs and aggregates, which is similar to the highly concentrated electrolytes. These associated complexes are involved in the reduction reaction on the Li metal anode, forming sound solid electrolyte interphase layers. Furthermore, free FSI- ions in DEE are observed to participate in the formation of cathode electrolyte interphase layers. These passivation layers not only suppress dendrite growth on the Li anode but also prevent unwanted side-reactions on the LiFePO4 cathode. The average CE of the Li||Cu cells in LiFSI-DEE is observed to be 98.0%. Moreover, LiFSI-DEE also plays an important role in enhancing the cycling stability of the Li||LiFP cell with a capacity retention of 93.5% after 200 cycles. These results demonstrate the benefits of LiFSI-DEE, which creates new possibilities for high-energy-density rechargeable LMBs.
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Affiliation(s)
- Thuy Duong Pham
- Department of Chemistry, Kunsan National University, Gunsan, Jeonbuk, 54150, Republic of Korea
| | - Kyung-Koo Lee
- Department of Chemistry, Kunsan National University, Gunsan, Jeonbuk, 54150, Republic of Korea
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11
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Li Y, An Y, Tian Y, Wei C, Xiong S, Feng J. High-Safety and High-Voltage Lithium Metal Batteries Enabled by a Nonflammable Ether-Based Electrolyte with Phosphazene as a Cosolvent. ACS Appl Mater Interfaces 2021; 13:10141-10148. [PMID: 33595288 DOI: 10.1021/acsami.1c00661] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The high reactivity between lithium metal and traditional carbonate electrolytes is a great obstacle to realize the long-term cycling ability of lithium metal batteries. Ether-based electrolytes have good stability toward lithium metal anodes. However, the oxidation stability of ether-based electrolytes is generally lower than 4 V, which limits the application of high-voltage (>4 V) cathodes and restricts the energy density. The high flammability of ether is another key issue that hinders the commercialization of ether-based electrolytes. To address these issues, herein, we report a high-voltage, nonflammable ether-based electrolyte with F-, N-, and P-rich hexafluorocyclotriphosphazene (HFPN) as a cosolvent. HFPN can not only act as a highly efficient flame-retarding agent but also form a dense and homogeneous solid electrolyte interphase (SEI) layer rich in LiF and Li3N on the lithium metal anode, which stabilizes the lithium/electrolyte interface and inhibits the formation of lithium dendrites. Moreover, the HFPN-based electrolyte has a wider potential window than 4 V. As a result, with this electrolyte, high-voltage lithium metal batteries exhibit a capacity retention of ∼95% after 100 cycles. This study may provide a new pathway for developing safe, high-energy, and dendrite-free lithium metal batteries.
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Affiliation(s)
- Yuan Li
- SDU & Rice Joint Center for Carbon Nanomaterials, Key Laboratory for Liquid-Solid Structural Evolution & Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Jinan 250061, P. R. China
| | - Yongling An
- SDU & Rice Joint Center for Carbon Nanomaterials, Key Laboratory for Liquid-Solid Structural Evolution & Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Jinan 250061, P. R. China
| | - Yuan Tian
- SDU & Rice Joint Center for Carbon Nanomaterials, Key Laboratory for Liquid-Solid Structural Evolution & Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Jinan 250061, P. R. China
| | - Chuanliang Wei
- SDU & Rice Joint Center for Carbon Nanomaterials, Key Laboratory for Liquid-Solid Structural Evolution & Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Jinan 250061, P. R. China
| | - Shenglin Xiong
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P. R. China
| | - Jinkui Feng
- SDU & Rice Joint Center for Carbon Nanomaterials, Key Laboratory for Liquid-Solid Structural Evolution & Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Jinan 250061, P. R. China
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Wang Z, Yang H, Liu Y, Bai Y, Chen G, Li Y, Wang X, Xu H, Wu C, Lu J. Analysis of the Stable Interphase Responsible for the Excellent Electrochemical Performance of Graphite Electrodes in Sodium-Ion Batteries. Small 2020; 16:e2003268. [PMID: 33244854 DOI: 10.1002/smll.202003268] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 10/26/2020] [Indexed: 06/11/2023]
Abstract
Considerable efforts have been exerted to understand the formation and properties of the solid electrolyte interphase (SEI) in sodium ion batteries. However, the puzzling existence and role of SEI behind the huge volume changes of the graphite electrodes need to be answered. Herein, the reason of how ether-derived SEI maintains excellent reversibility despite the huge volume changes during cycling is unraveled. Theoretical simulations and Fourier-transform infrared spectroscopy demonstrate the formation mechanism of an SEI between the graphite anode and electrolyte. Furthermore, the high mechanical tolerance of the ether-derived SEI is confirmed in atomic force microscopy. A depth profile of X-ray photoelectron spectroscopy points to a multilayer structure of the ether-derived SEI. The outer layer comprises organics (sodium alkoxide), while the inorganics (Na2 CO3 , NaF) in interior region are mixed with some organics. Notably, the presence of organics ensures the adaptability of the SEI to the volume expansion of graphite during cycling, and the concentrated distribution of inorganics improves the Young's modulus (resistance to deformation). Therefore, the graphite anode exhibits high cycle stability (96.6% capacity retention ratio at 1 A g-1 over 860 cycles) and efficiency (≈99.5%).
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Affiliation(s)
- Zhaohua Wang
- School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Haoyi Yang
- School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Yiran Liu
- School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Ying Bai
- School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Guanghai Chen
- School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Ying Li
- School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Xinran Wang
- School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Huajie Xu
- Key Laboratory of Materials Processing and Mold, Ministry of Education, Zhengzhou University, Zhengzhou, 450002, China
| | - Chuan Wu
- School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, 100081, China
- Collaborative Innovation Center of Electric Vehicles in Beijing, Beijing, 100081, China
| | - Jun Lu
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, IL, 60439, USA
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Xiao W, Sun Q, Liu J, Xiao B, Li X, Glans PA, Li J, Li R, Li X, Guo J, Yang W, Sham TK, Sun X. Engineering Surface Oxygenated Functionalities on Commercial Carbon toward Ultrafast Sodium Storage in Ether-Based Electrolytes. ACS Appl Mater Interfaces 2020; 12:37116-37127. [PMID: 32701256 DOI: 10.1021/acsami.0c08899] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The pursuit of a high-capacity anode material has been urgently required for commercializing sodium-ion batteries with a high energy density and an improved working safety. In the absence of thermodynamically stable sodium intercalated compounds with graphite, constructing nanostructures with expanded interlayer distances is still the mainstream option for developing high-performance carbonaceous anodes. In this regard, a surface-functionalized and pore-forming strategy through a facile CO2 thermal etching route was rationally adopted to engineer negligible oxygenated functionalities on commercial carbon for boosting the sodium storage process. Benefitted from the abundant ionic/electronic pathways and more active reaction sites in the microporous structure with noticeable pseudocapacitive behaviors, the functionalized porous carbon could achieve a highly reversible capacity of 505 mA h g-1 at 50 mA g-1, an excellent rate performance of 181 mA h g-1 at 16,000 mA g-1, and an exceptional rate cycle stability of 176 mA h g-1 at 3200 mA g-1 over 1000 cycles. These outstanding electrochemical properties should be ascribed to a synergistic mechanism, fully utilizing the graphitic and amorphous structures for synchronous intercalations of sodium ions and solvated sodium ion compounds, respectively. Additionally, the controllable generation and evolution of a robust but thin solid electrolyte interphase film with the emergence of obvious capacitive reactions on the defective surface, favoring the rapid migration of sodium ions and solvated species, also contribute to a remarkable electrochemical performance of this porous carbon black.
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Affiliation(s)
- Wei Xiao
- Department of Mechanical & Materials Engineering, University of Western Ontario, London, Ontario N6A 5B9, Canada
- Department of Chemistry, University of Western Ontario, London, Ontario N6A 5B7, Canada
- Institute of Advanced Electrochemical Energy & School of Materials Science and Engineering, Xi'an University of Technology, Xi'an, Shaanxi 710048, China
| | - Qian Sun
- Department of Mechanical & Materials Engineering, University of Western Ontario, London, Ontario N6A 5B9, Canada
| | - Jian Liu
- Department of Mechanical & Materials Engineering, University of Western Ontario, London, Ontario N6A 5B9, Canada
| | - Biwei Xiao
- Department of Mechanical & Materials Engineering, University of Western Ontario, London, Ontario N6A 5B9, Canada
| | - Xia Li
- Department of Mechanical & Materials Engineering, University of Western Ontario, London, Ontario N6A 5B9, Canada
| | - Per-Anders Glans
- Lawrence Berkeley National Laboratory, Advanced Light Source, Berkeley, California 94720, United States
| | - Jun Li
- Department of Chemistry, University of Western Ontario, London, Ontario N6A 5B7, Canada
| | - Ruying Li
- Department of Mechanical & Materials Engineering, University of Western Ontario, London, Ontario N6A 5B9, Canada
| | - Xifei Li
- Institute of Advanced Electrochemical Energy & School of Materials Science and Engineering, Xi'an University of Technology, Xi'an, Shaanxi 710048, China
| | - Jinghua Guo
- Lawrence Berkeley National Laboratory, Advanced Light Source, Berkeley, California 94720, United States
| | - Wanli Yang
- Lawrence Berkeley National Laboratory, Advanced Light Source, Berkeley, California 94720, United States
| | - Tsun-Kong Sham
- Department of Chemistry, University of Western Ontario, London, Ontario N6A 5B7, Canada
| | - Xueliang Sun
- Department of Mechanical & Materials Engineering, University of Western Ontario, London, Ontario N6A 5B9, Canada
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Lin S, Hua H, Li Z, Zhao J. Functional Localized High-Concentration Ether-Based Electrolyte for Stabilizing High-Voltage Lithium-Metal Battery. ACS Appl Mater Interfaces 2020; 12:33710-33718. [PMID: 32597632 DOI: 10.1021/acsami.0c07904] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Localized high-concentration electrolytes have attracted much attention of researchers due to their low viscosity, low cost, and relatively higher electrochemical performance than their low-concentration counterparts. In our work, 1.5 M (mol L-1) locally concentrated ether-based electrolyte has been obtained by adding 1,1,2,2-tetrafluoroethyl-2,2,3,3-tetrafluoropropyl ether (HFE) into a 4 M LiFSI concentrated dimethoxyethane (DME)-based electrolyte. The optimal ratio is determined by density functional theory (DFT) calculation and experimental combination, and finally, DH(3/5)-1.5M-LiFSI (DME/HFE = 3:5 by volume) is obtained. The electrolyte not only has relatively good physical properties such as low viscosity and high conductivity but also shows decent electrochemical performance. Li∥Cu half-cells can maintain a coulombic efficiency of no less than 99% after circulating for 250 cycles under the condition of 1 mA cm-2 current density and 1 mAh cm-2 lithium deposition for each cycle, and the stable battery polarization voltage was about 50 mV. Furthermore, 0.15 M lithium trifluoromethyl acetate (LiCO2CF3) has been added as an additive to enhance the oxidation stability. The new electrolyte DH(3/5)-1.65M-LiFC (LiFC/LiFSI + LiCO2CF3) makes Li||NCM523 batteries maintain about 83% capacity after cycling for 250 times with a 0.5 C charge current density and a 1 C discharge current density of 160 mAh g-1 when charged to 4.3 V. Furthermore, this new additive has a little negative effect on the Li||Cu half-cell performance under the same condition as before, indicating this new type of localized high-concentration DME-based electrolyte benefits both high-voltage cathode and lithium-metal anode.
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Affiliation(s)
- Shuangshuang Lin
- State-Province Joint Engineering Laboratory of Power Source Technology for New Energy Vehicle, Engineering Research Center of Electrochemical Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Haiming Hua
- State-Province Joint Engineering Laboratory of Power Source Technology for New Energy Vehicle, Engineering Research Center of Electrochemical Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Zhisen Li
- State-Province Joint Engineering Laboratory of Power Source Technology for New Energy Vehicle, Engineering Research Center of Electrochemical Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Jinbao Zhao
- State-Province Joint Engineering Laboratory of Power Source Technology for New Energy Vehicle, Engineering Research Center of Electrochemical Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
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He Y, Bai P, Gao S, Xu Y. Marriage of an Ether-Based Electrolyte with Hard Carbon Anodes Creates Superior Sodium-Ion Batteries with High Mass Loading. ACS Appl Mater Interfaces 2018; 10:41380-41388. [PMID: 30403338 DOI: 10.1021/acsami.8b15274] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Inferior rate performance, insufficient cycle life, and low mass loading have restricted the practical application of hard carbon (HC) anodes in sodium-ion batteries (NIBs). Here, a compatible strategy is developed by matching HC anodes with an ether-based electrolyte. Systematical investigation reveals that good compatibility of the electrode-electrolyte systems forms thinner but a more sustainable solid-electrolyte interphase and delivers a higher ionic conductivity and Na+ ion diffusion coefficient than the commonly used ester-based electrolytes. Therefore, an excellent electrochemical performance is demonstrated with a long cycle life (∼196 mA h/g and 90% capacity retention after 2000 cycles at 1 A/g), a super rate capability (∼51% capacity retention at 10 A/g) at a mass loading of 1.5 mg/cm2, and a high initial Coulombic efficiency of 85.9%. More importantly, a high reversible areal capacity of 4.3 mA h/cm2 can be achieved at an ultrahigh mass loading of 17 mg/cm2, superior to all reported HC anodes. Our findings not only shed light on the design of high-performance battery systems but also promise a commercial transformation from the lab test to mass production of NIBs.
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Affiliation(s)
- Yongwu He
- School of Materials Science and Engineering, Key Laboratory of Advanced Ceramics and Machining Technology (Ministry of Education), Tianjin Key Laboratory of Composite and Functional Materials, and Tianjin Key Laboratory of Molecular Optoelectronic Science , Tianjin University , Tianjin 300072 , China
| | - Panxing Bai
- School of Materials Science and Engineering, Key Laboratory of Advanced Ceramics and Machining Technology (Ministry of Education), Tianjin Key Laboratory of Composite and Functional Materials, and Tianjin Key Laboratory of Molecular Optoelectronic Science , Tianjin University , Tianjin 300072 , China
| | - Shuyan Gao
- School of Chemistry and Chemical Engineering , Henan Normal University , Xinxiang 453007 , China
| | - Yunhua Xu
- School of Materials Science and Engineering, Key Laboratory of Advanced Ceramics and Machining Technology (Ministry of Education), Tianjin Key Laboratory of Composite and Functional Materials, and Tianjin Key Laboratory of Molecular Optoelectronic Science , Tianjin University , Tianjin 300072 , China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin 300072 , China
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Abstract
Sodium-ion capacitors (SICs) have received intensive attention due to their high energy density, high power density, long cycle life, and low cost of sodium. However, the lack of high-performance anode materials and the tedious presodiation process hinders the practical applications of SICs. A simple and effective strategy is reported to fabricate a high-performance SIC using Fe1- x S as the anode material and an ether-based electrolyte. The Fe1- x S electrode is found to undergo a reversible intercalation reaction after the first cycle, resulting in fast kinetics and excellent reversibility. The Fe1- x S electrode delivers a high capacity of 340 mAh g-1 at 0.05 A g-1 , 179 mAh g-1 at high current of 5 A g-1 and an ultralong cycling performance with 95% capacity retention after 7000 cycles. Coupled with a carbon-based cathode, a high-performance SIC without the presodiation process is successfully fabricated. The hybrid device demonstrates an excellent energy density of 88 Wh kg-1 and superior power density of 11 500 W kg-1 , as well as an ultralong lifetime of 9000 cycles with over 93% capacity retention. An innovative and efficient way to fabricate SICs with both high energy and power density utilizing ether-based electrolytes can be realized to eliminate the presodiation process.
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Affiliation(s)
- Shaohui Li
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Jingwei Chen
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
- Singapore-HUJ Alliance for Research and Enterprise (SHARE), Nanomaterials for Energy and Water Nexus (NEW), Campus for Research Excellence and Technological Enterprise (CREATE), Singapore, 138602, Singapore
| | - Xuefei Gong
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Jiangxin Wang
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Pooi See Lee
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
- Singapore-HUJ Alliance for Research and Enterprise (SHARE), Nanomaterials for Energy and Water Nexus (NEW), Campus for Research Excellence and Technological Enterprise (CREATE), Singapore, 138602, Singapore
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Li J, Yan D, Lu T, Qin W, Yao Y, Pan L. Significantly Improved Sodium-Ion Storage Performance of CuS Nanosheets Anchored into Reduced Graphene Oxide with Ether-Based Electrolyte. ACS Appl Mater Interfaces 2017; 9:2309-2316. [PMID: 28032984 DOI: 10.1021/acsami.6b12529] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Currently sodium-ion batteries (SIBs) as energy storage technology have attracted lots of interest due to their safe, cost-effective, and nonpoisonous advantages. However, many challenges remain for development of SIBs with high specific capacity, high rate capability, and long cycle life. Therefore, CuS as an important earth-abundant, low-cost semiconductor was applied as anode of SIBs with ether-based electrolyte instead of conventional ester-based electrolyte. By incorporating reduced graphene oxide (RGO) into CuS nanosheets and optimizing the cutoff voltage, it is found that the sodium-ion storage performance can be greatly enhanced using ether-based electrolyte. The CuS-RGO composites deliver an initial Coulombic efficiency of 94% and a maximum specific capacity of 392.9 mAh g-1 after 50 cycles at a current density of 100 mA g-1. And a specific capacity of 345 mAh g-1 is kept after 450 cycles at a current density of 1 A g-1. Such an excellent electrochemical performance is ascribed to the conductive network construction of CuS-RGO composites, the suppression of dissolved polysulfide intermediates by using ether-based electrolyte, and the avoidance of conversion-type reaction by optimizing the cutoff voltage.
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Affiliation(s)
- Jinliang Li
- School of Physics and Materials Science, Engineering Research Center for Nanophotonics & Advanced Instrument, Shanghai Key Laboratory of Magnetic Resonance, East China Normal University , Shanghai 200062, China
| | - Dong Yan
- School of Physics and Materials Science, Engineering Research Center for Nanophotonics & Advanced Instrument, Shanghai Key Laboratory of Magnetic Resonance, East China Normal University , Shanghai 200062, China
| | - Ting Lu
- School of Physics and Materials Science, Engineering Research Center for Nanophotonics & Advanced Instrument, Shanghai Key Laboratory of Magnetic Resonance, East China Normal University , Shanghai 200062, China
| | - Wei Qin
- State Key Laboratory of Optoelectronic Materials and Technologies, Nanotechnology Research Center, School of Materials Science & Engineering, Sun Yat-sen University , Guangzhou 510275, Guangdong, China
| | - Yefeng Yao
- School of Physics and Materials Science, Engineering Research Center for Nanophotonics & Advanced Instrument, Shanghai Key Laboratory of Magnetic Resonance, East China Normal University , Shanghai 200062, China
| | - Likun Pan
- School of Physics and Materials Science, Engineering Research Center for Nanophotonics & Advanced Instrument, Shanghai Key Laboratory of Magnetic Resonance, East China Normal University , Shanghai 200062, China
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