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Wang J, Luo J, Wu H, Yu X, Wu X, Li Z, Luo H, Zhang H, Hong Y, Zou Y, Cao S, Qiao Y, Sun SG. Visualizing and Regulating Dynamic Evolution of Interfacial Electrolyte Configuration during De-solvation Process on Lithium-Metal Anode. Angew Chem Int Ed Engl 2024; 63:e202400254. [PMID: 38441399 DOI: 10.1002/anie.202400254] [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: 01/04/2024] [Indexed: 03/21/2024]
Abstract
Acting as a passive protective layer, solid-electrolyte interphase (SEI) plays a crucial role in maintaining the stability of the Li-metal anode. Derived from the reductive decomposition of electrolytes (e.g., anion and solvent), the SEI construction presents as an interfacial process accompanied by the dynamic de-solvation process during Li-metal plating. However, typical electrolyte engineering and related SEI modification strategies always ignore the dynamic evolution of electrolyte configuration at the Li/electrolyte interface, which essentially determines the SEI architecture. Herein, by employing advanced electrochemical in situ FT-IR and MRI technologies, we directly visualize the dynamic variations of solvation environments involving Li+-solvent/anion. Remarkably, a weakened Li+-solvent interaction and anion-lean interfacial electrolyte configuration have been synchronously revealed, which is difficult for the fabrication of anion-derived SEI layer. Moreover, as a simple electrochemical regulation strategy, pulse protocol was introduced to effectively restore the interfacial anion concentration, resulting in an enhanced LiF-rich SEI layer and improved Li-metal plating/stripping reversibility.
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Affiliation(s)
- Junhao Wang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, P. R. China
| | - Jing Luo
- MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Fujian Provincial Key Laboratory of Plasma and Magnetic Resonance, Department of Electronic Science, Xiamen University, 361005, Xiamen, P. R. China
| | - Haichuan Wu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, P. R. China
| | - Xiaoyu Yu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, P. R. China
| | - Xiaohong Wu
- Fujian Provincial Key Laboratory of Functional Materials and Applications, Institute of Advanced Energy Materials, School of Materials Science and Engineering, Xiamen University of Technology, 361024, Xiamen, P. R. China
| | - Zhengang Li
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, P. R. China
| | - Haiyan Luo
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, P. R. China
| | - Haitang Zhang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, P. R. China
| | - Yuhao Hong
- Innovation Labratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), 361024, Xiamen, P. R. China
| | - Yeguo Zou
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, P. R. China
- Innovation Labratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), 361024, Xiamen, P. R. China
| | - Shuohui Cao
- MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Fujian Provincial Key Laboratory of Plasma and Magnetic Resonance, Department of Electronic Science, Xiamen University, 361005, Xiamen, P. R. China
| | - Yu Qiao
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, P. R. China
- Innovation Labratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), 361024, Xiamen, P. R. China
| | - Shi-Gang Sun
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, P. R. China
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Liao Y, Yuan L, Han Y, Liang C, Li Z, Li Z, Luo W, Wang D, Huang Y. Pentafluoro(phenoxy)cyclotriphosphazene Stabilizes Electrode/Electrolyte Interfaces for Sodium-Ion Pouch Cells of 145 Wh Kg -1. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2312287. [PMID: 38258353 DOI: 10.1002/adma.202312287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 12/29/2023] [Indexed: 01/24/2024]
Abstract
Sodium-ion batteries are competitive candidates for large-scale energy storage batteries due to the abundant sodium resource. However, the electrode interface in the conventional electrolyte is unstable, deteriorating the cycle life of the cells. Introducing functional electrolyte additives can generate stable electrode interfaces. Here, pentafluoro(phenoxy)cyclotriphosphazene (FPPN) serves as a functional electrolyte additive to stabilize the interfaces of the layered oxide cathode and the hard carbon anode. The fluorine substituting groups and the π-π conjugated ─PN─ structure decrease the lowest unoccupied molecular orbital and increase the highest occupied molecular orbital of FPPN, respectively, realizing the preferential reduction and oxidization of FPPN on the anode and cathode simultaneously, which results in the formation of a uniform, ultrathin, and inorganic-rich solid electrolyte interlayer and cathode electrolyte interphase. The sodium-ion pouch cells of 5 Ah capacity rather than coin cells are assembled to evaluate the effect of FPPN. It can retain a high capacity of 4.46 Ah after 1000 cycles, corresponding to a low decay ratio of 0.01% per cycle. The pouch cell also achieves a high energy density of 145 Wh kg-1 and a wide operating temperature of -20-60 °C. This work can attract more attention to the rational electrolyte design for practical applications.
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Affiliation(s)
- Yaqi Liao
- Institute of New Energy for Vehicles, School of Materials Science and Engineering, Tongji University, Shanghai, 201804, China
- State Key Laboratory of Material Processing and Die and Mold Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Lixia Yuan
- State Key Laboratory of Material Processing and Die and Mold Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Yan Han
- State Key Laboratory of Material Processing and Die and Mold Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Chaofan Liang
- State Key Laboratory of Material Processing and Die and Mold Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Zezhuo Li
- State Key Laboratory of Material Processing and Die and Mold Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Zhen Li
- State Key Laboratory of Material Processing and Die and Mold Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Wei Luo
- Institute of New Energy for Vehicles, School of Materials Science and Engineering, Tongji University, Shanghai, 201804, China
| | - Donghai Wang
- Institute of New Energy for Vehicles, School of Materials Science and Engineering, Tongji University, Shanghai, 201804, China
| | - Yunhui Huang
- State Key Laboratory of Material Processing and Die and Mold Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
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Luo J, Yang M, Wang D, Zhang J, Song K, Tang G, Xie Z, Guo X, Shi Y, Chen W. A Fast Na-Ion Conduction Polymer Electrolyte via Triangular Synergy Strategy for Quasi-Solid-State Batteries. Angew Chem Int Ed Engl 2023; 62:e202315076. [PMID: 37960950 DOI: 10.1002/anie.202315076] [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: 10/07/2023] [Revised: 11/12/2023] [Accepted: 11/13/2023] [Indexed: 11/15/2023]
Abstract
Polymer electrolytes provide a visible pathway for the construction of high-safety quasi-solid-state batteries due to their high interface compatibility and processability. Nevertheless, sluggish ion transfer at room temperature seriously limits their applications. Herein, a triangular synergy strategy is proposed to accelerate Na-ion conduction via the cooperation of polymer-salt, ionic liquid, and electron-rich additive. Especially, PVDF-HFP and NaTFSI salt acted as the framework to stably accommodate all the ingredients. An ionic liquid (Emim+ -FSI- ) softened the polymer chains through a weakening molecule force and offered additional liquid pathways for ion transport. Physicochemical characterizations and theoretical calculations demonstrated that electron-rich Nerolin with π-cation interaction facilitated the dissociation of NaTFSI and effectively restrained the competitive migration of large cations from EmimFSI, thus lowering the energy barrier for ion transport. The strategy resulted in a thin F-rich interphase dominated by NaTFSI salt's decomposition, enabling rapid Na+ transmission across the interface. These combined effects resulted in a polymer electrolyte with high ionic conductivity (1.37×10-3 S cm-1 ) and tNa+ (0.79) at 25 °C. The assembled cells delivered reliable rate capability and stability (200 cycles, 99.2 %, 0.5 C) with a good safety performance.
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Affiliation(s)
- Jun Luo
- College of Chemistry & Green Catalysis Center, Zhengzhou University, Zhengzhou, 450001, Henan, P. R. China
| | - Mingrui Yang
- College of Chemistry & Green Catalysis Center, Zhengzhou University, Zhengzhou, 450001, Henan, P. R. China
| | - Denghui Wang
- College of Chemistry & Green Catalysis Center, Zhengzhou University, Zhengzhou, 450001, Henan, P. R. China
| | - Jiyu Zhang
- College of Chemistry & Green Catalysis Center, Zhengzhou University, Zhengzhou, 450001, Henan, P. R. China
| | - Keming Song
- College of Chemistry & Green Catalysis Center, Zhengzhou University, Zhengzhou, 450001, Henan, P. R. China
| | - Guochuan Tang
- College of Chemistry & Green Catalysis Center, Zhengzhou University, Zhengzhou, 450001, Henan, P. R. China
| | - Zhengkun Xie
- College of Chemistry & Green Catalysis Center, Zhengzhou University, Zhengzhou, 450001, Henan, P. R. China
| | - Xiaoniu Guo
- College of Chemistry & Green Catalysis Center, Zhengzhou University, Zhengzhou, 450001, Henan, P. R. China
| | - Yu Shi
- Leeds Institute of Textiles and Colour (LITAC), School of Design, Woodhouse Lane, University of Leeds, Leeds, LS2 9JT, UK
| | - Weihua Chen
- College of Chemistry & Green Catalysis Center, Zhengzhou University, Zhengzhou, 450001, Henan, P. R. China
- State Key Laboratory of Structural Analysis, Optimization and CAE Software for Industrial Equipment, Zhengzhou University, Zhengzhou, 450002, Henan, P. R. China
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Du H, Song K, Yang M, Huang P, Chen W. Interface Regulation via Electric Double Layer for Rechargeable Batteries. CHEMSUSCHEM 2023; 16:e202300708. [PMID: 37624682 DOI: 10.1002/cssc.202300708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 08/17/2023] [Accepted: 08/24/2023] [Indexed: 08/27/2023]
Abstract
Interphases, especially the electrochemically formed solid electrolyte interphase (SEI), are significantly important for cycling stability, reaction kinetics and safety of rechargeable batteries. The structure and composition of the electric double layer (EDL) greatly affect the formation of the SEI and the performance of electrodes. However, as far as we know, there is no review discussing the theme specifically. Herein, the recent substantial progress for EDL and its impact on the formation of SEI in rechargeable batteries are reviewed and discussed. Firstly, the specific adsorption of electrolyte components on electrodes' surface and the ionic solvation structure are introduced. Furthermore, various methods for controlling EDL in different electrode systems are described. Finally, the potential future advancements of the SEI through the manipulation of EDL are discussed, aiming to enhance the electrochemical performance of rechargeable batteries.
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Affiliation(s)
- Haiying Du
- College of Chemistry & Green Catalysis Center, Zhengzhou University, Zhengzhou, Henan, 450001, P. R. China
| | - Keming Song
- College of Chemistry & Green Catalysis Center, Zhengzhou University, Zhengzhou, Henan, 450001, P. R. China
| | - Mingrui Yang
- College of Chemistry & Green Catalysis Center, Zhengzhou University, Zhengzhou, Henan, 450001, P. R. China
| | - Peng Huang
- College of Chemistry & Green Catalysis Center, Zhengzhou University, Zhengzhou, Henan, 450001, P. R. China
| | - Weihua Chen
- College of Chemistry & Green Catalysis Center, Zhengzhou University, Zhengzhou, Henan, 450001, P. R. China
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Wan S, Song K, Chen J, Zhao S, Ma W, Chen W, Chen S. Reductive Competition Effect-Derived Solid Electrolyte Interphase with Evenly Scattered Inorganics Enabling Ultrahigh Rate and Long-Life Span Sodium Metal Batteries. J Am Chem Soc 2023; 145:21661-21671. [PMID: 37724914 DOI: 10.1021/jacs.3c08224] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/21/2023]
Abstract
Constructing an inorganic-rich and robust solid electrolyte interphase (SEI) is one of the crucial approaches to improving the electrochemical performance of sodium metal batteries (SMBs). However, the low conductivity and distribution of common inorganics in SEI disturb Na+ diffusion and induce nonuniform sodium deposition. Here, we construct a unique SEI with evenly scattered high-conductivity inorganics by introducing a self-sacrifice LiTFSI into the sodium salt-base carbonate electrolyte. The reductive competition effect between LiTFSI and FEC facilitates the formation of the SEI with evenly scattered inorganics. In which the high-conductive Li3N and inorganics provide fast ions transport domains and high-flux nucleation sites for Na+, thus conducive to rapid sodium deposition at a high rate. Therefore, the SEI derived from LiTFSI and FEC enables the Na∥Na3V2(PO4)3 cell to show 89.15% capacity retention (87.62 mA h g-1) at an ultrahigh rate of 60 C after 10,000 cycles, while the cell without LiTFSI delivers only 48.44% capacity retention even after 8000 cycles. Moreover, the Na∥Na3V2(PO4)3 pouch cell with the special SEI presents a stable capacity retention of 92.05% at 10 C after 2000 cycles. This unique SEI design elucidates a new strategy to propel SMBs to operate under extreme high-rate conditions.
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Affiliation(s)
- Shuang Wan
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Electrochemical Process and Technology of Materials, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Keming Song
- College of Chemistry & Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Jiacheng Chen
- College of Chemistry & Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Shunshun Zhao
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Electrochemical Process and Technology of Materials, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Weiting Ma
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Electrochemical Process and Technology of Materials, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Weihua Chen
- College of Chemistry & Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Shimou Chen
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Electrochemical Process and Technology of Materials, Beijing University of Chemical Technology, Beijing 100029, P. R. China
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Zhou A, Guo C, Jiang J, Wang D, Wang X, Ali S, Li J, Xia W, Fu M, Sun W. The Pillar Effect of Large-Size Alkaline Ions on the Electrochemical Stability of Sodium Manganese Hexacyanoferrate for Sodium-Ion Batteries. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2304887. [PMID: 37632313 DOI: 10.1002/smll.202304887] [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: 06/19/2023] [Revised: 08/06/2023] [Indexed: 08/27/2023]
Abstract
Sodium manganese hexacyanoferrate (NaMnHCF) is an attractive candidate as a cathode material for sodium-ion batteries due to its low cost and high energy density. However, its practical application is hindered by poor electrochemical stability caused by the Jahn-Teller effect of Mn and the unstable structure of NaMnHCF. Here, this paper aims to address this issue by introducing highly stable AMnHCF (where A = K, Rb, or Cs) through a facile method to composite with NaMnHCF. The findings reveal that all AMnHCFs have a "pillar effect" on the crystal structure of NaMnHCF. It is observed that the degree of pillar effect varies depending on the specific AMnHCF used. The less electrochemically inactive the alkaline ion is and the greater the degree of compositing with NaMnHCF, the more dramatic the pillar effect. KMnHCF shows limited pillar effect due to its rough composition with NaMnHCF and the loss of K+ upon (de)intercalation. RbMnHCF has lower electrochemical activity and can be better composited with NaMnHCF. On the other hand, CsMnHCF exhibits the strongest pillar effect due to the inactivation of Cs+ and the excellent coherent structure formed by CsMnHCF and NaMnHCF. This research provides a new perspective on stabilizing NaMnHCF with other alkaline elements.
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Affiliation(s)
- Aijun Zhou
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, China
- Yangtze Delta Region Institute Huzhou, University of Electronic Science and Technology of China, Huzhou, 313001, China
| | - Can Guo
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, China
- Yangtze Delta Region Institute Huzhou, University of Electronic Science and Technology of China, Huzhou, 313001, China
| | - Jicheng Jiang
- Yangtze Delta Region Institute Huzhou, University of Electronic Science and Technology of China, Huzhou, 313001, China
| | - Donghuang Wang
- Yangtze Delta Region Institute Huzhou, University of Electronic Science and Technology of China, Huzhou, 313001, China
| | - Xin Wang
- Yangtze Delta Region Institute Huzhou, University of Electronic Science and Technology of China, Huzhou, 313001, China
| | - Shamshad Ali
- Yangtze Delta Region Institute Huzhou, University of Electronic Science and Technology of China, Huzhou, 313001, China
| | - Jingze Li
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, China
- Yangtze Delta Region Institute Huzhou, University of Electronic Science and Technology of China, Huzhou, 313001, China
| | - Weiwei Xia
- School of Materials and Engineering, Northwestern Polytechnical University, 127 West Youyi Road, Beilin District, Xi'an, Shaanxi, 710072, P. R. China
| | - Maosen Fu
- School of Materials and Engineering, Northwestern Polytechnical University, 127 West Youyi Road, Beilin District, Xi'an, Shaanxi, 710072, P. R. China
| | - Wenwu Sun
- Thermo Fisher Scientific Co., Ltd., Shanghai China, Building A, China Core Technology Park, 2517 Jinke Road, Pudong New Area, Shanghai, 201203, China
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