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Niu M, Dong L, Yue J, Li Y, Dong Y, Cheng S, Lv S, Zhu YH, Lei Z, Liang JY, Xin S, Yang C, Guo YG. A Fast-Charge Graphite Anode with a Li-Ion-Conductive, Electron/Solvent-Repelling Interface. Angew Chem Int Ed Engl 2024; 63:e202318663. [PMID: 38516922 DOI: 10.1002/anie.202318663] [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: 12/05/2023] [Revised: 03/04/2024] [Accepted: 03/21/2024] [Indexed: 03/23/2024]
Abstract
Graphite has been serving as the key anode material of rechargeable Li-ion batteries, yet is difficultly charged within a quarter hour while maintaining stable electrochemistry. In addition to a defective edge structure that prevents fast Li-ion entry, the high-rate performance of graphite could be hampered by co-intercalation and parasitic reduction of solvent molecules at anode/electrolyte interface. Conventional surface modification by pitch-derived carbon barely isolates the solvent and electrons, and usually lead to inadequate rate capability to meet practical fast-charge requirements. Here we show that, by applying a MoOx-MoNx layer onto graphite surface, the interface allows fast Li-ion diffusion yet blocks solvent access and electron leakage. By regulating interfacial mass and charge transfer, the modified graphite anode delivers a reversible capacity of 340.3 mAh g-1 after 4000 cycles at 6 C, showing promises in building 10-min-rechargeable batteries with a long operation life.
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Affiliation(s)
- Min Niu
- MOE Engineering Research Center for Electrochemical Energy Storage and Carbon Neutrality in Cold Regions, School of Chemistry and Chemical Engineering, Harbin Institute of Technology (HIT), Harbin, 150001, P. R. China
| | - Liwei Dong
- MOE Engineering Research Center for Electrochemical Energy Storage and Carbon Neutrality in Cold Regions, School of Chemistry and Chemical Engineering, Harbin Institute of Technology (HIT), Harbin, 150001, P. R. China
| | - Junpei Yue
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing National Laboratory for Molecular Sciences (BNLMS) Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing, 100190, P. R. China
| | - Yaqiang Li
- MOE Engineering Research Center for Electrochemical Energy Storage and Carbon Neutrality in Cold Regions, School of Chemistry and Chemical Engineering, Harbin Institute of Technology (HIT), Harbin, 150001, P. R. China
| | - Yueyao Dong
- MOE Engineering Research Center for Electrochemical Energy Storage and Carbon Neutrality in Cold Regions, School of Chemistry and Chemical Engineering, Harbin Institute of Technology (HIT), Harbin, 150001, P. R. China
| | - Shichao Cheng
- MOE Engineering Research Center for Electrochemical Energy Storage and Carbon Neutrality in Cold Regions, School of Chemistry and Chemical Engineering, Harbin Institute of Technology (HIT), Harbin, 150001, P. R. China
| | - Sheng Lv
- MOE Engineering Research Center for Electrochemical Energy Storage and Carbon Neutrality in Cold Regions, School of Chemistry and Chemical Engineering, Harbin Institute of Technology (HIT), Harbin, 150001, P. R. China
| | - Yu-Hui Zhu
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing National Laboratory for Molecular Sciences (BNLMS) Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing, 100190, P. R. China
- School of Chemical Sciences, University of Chinese Academy of Sciences (UCAS), Beijing, 100049, P. R. China
| | - Zuotao Lei
- MOE Engineering Research Center for Electrochemical Energy Storage and Carbon Neutrality in Cold Regions, School of Chemistry and Chemical Engineering, Harbin Institute of Technology (HIT), Harbin, 150001, P. R. China
| | - Jia-Yan Liang
- MOE Engineering Research Center for Electrochemical Energy Storage and Carbon Neutrality in Cold Regions, School of Chemistry and Chemical Engineering, Harbin Institute of Technology (HIT), Harbin, 150001, P. R. China
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing National Laboratory for Molecular Sciences (BNLMS) Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing, 100190, P. R. China
| | - Sen Xin
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing National Laboratory for Molecular Sciences (BNLMS) Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing, 100190, P. R. China
- School of Chemical Sciences, University of Chinese Academy of Sciences (UCAS), Beijing, 100049, P. R. China
| | - Chunhui Yang
- MOE Engineering Research Center for Electrochemical Energy Storage and Carbon Neutrality in Cold Regions, School of Chemistry and Chemical Engineering, Harbin Institute of Technology (HIT), Harbin, 150001, P. R. China
| | - Yu-Guo Guo
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing National Laboratory for Molecular Sciences (BNLMS) Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing, 100190, P. R. China
- School of Chemical Sciences, University of Chinese Academy of Sciences (UCAS), Beijing, 100049, P. R. China
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2
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You L, Dong S, Fang Y, Guo Y, Zhu K, Gao Y, Bao T, Wu H, Cao D. A graphene-like hollow sphere anode for lithium-ion batteries. Chem Commun (Camb) 2024; 60:5030-5033. [PMID: 38630296 DOI: 10.1039/d4cc00076e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
We report a flash Joule heating method for the rapid preparation of graphene-like materials. The L-GHS exhibited a uniform diameter of 200 nm and an ideal specific surface area of 670 m2 g-1. Meanwhile, the specific capacity of L-GHS remained at 942 mA h g-1 after 600 cycles (1 A g-1), which shows excellent electrochemical performance.
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Affiliation(s)
- Lili You
- Key Laboratory of Superlight Materials and Surface Technology, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin, China, 150001
| | - Shu Dong
- Key Laboratory of Superlight Materials and Surface Technology, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin, China, 150001
| | - Yongzheng Fang
- School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, Henan, China
| | - Yan Guo
- Key Laboratory of Superlight Materials and Surface Technology, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin, China, 150001
| | - Kai Zhu
- Key Laboratory of Superlight Materials and Surface Technology, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin, China, 150001
| | - Yinyi Gao
- Key Laboratory of Superlight Materials and Surface Technology, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin, China, 150001
| | - Tianzeng Bao
- Key Laboratory of Superlight Materials and Surface Technology, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin, China, 150001
| | - Hongbin Wu
- Hunan Hongshan New Energy Technology Co., Ltd, Henglongqiao Town, Heshan District, Yiyang City, Hunan Province, China, 413000
| | - Dianxue Cao
- Key Laboratory of Superlight Materials and Surface Technology, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin, China, 150001
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3
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Xiao P, Wang Z, Long K, Yang J, Liu X, Ling C, Chen L, Mei L. Stable cycling and low-temperature operation utilizing amorphous carbon-coated graphite anodes for lithium-ion batteries. RSC Adv 2024; 14:13277-13285. [PMID: 38660525 PMCID: PMC11040431 DOI: 10.1039/d4ra01560f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Accepted: 04/09/2024] [Indexed: 04/26/2024] Open
Abstract
With the continuous expansion of the lithium-ion battery market, addressing the critical issues of stable cycling and low-temperature operation of lithium-ion batteries (LIBs) has become an urgent necessity. The high anisotropy and poor kinetics of pristine graphite in LIBs contribute to the formation of precipitated lithium dendrites, especially during rapid charging or low-temperature operation. In this study, we design a graphite coated with amorphous carbon (GC) through the Chemical Vapor Deposition (CVD) method. The coated carbon layer at the graphite interface exhibits enhanced reaction kinetics and expanded lithium-ion diffusion pathways, thereby reduction in polarization effectively alleviates the risk of lithium precipitation during rapid charging and low-temperature operation. The pouch cell incorporating GC‖LiCoO2 exhibits exceptional durability, retaining 87% of its capacity even after 1200 cycles at a high charge/discharge rate of 5C/5C. Remarkably, at -20 °C, the GC-2 maintains a specific capacity of 163 mA h g-1 at 0.5C, higher than that of pristine graphite (65 mA h g-1). Even at -40 °C, the GC-2‖LiCoO2 pouch cell still shows excellent capacity retention. This design realizes the practical application of graphite anode in extreme environments, and have a promising prospect of application.
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Affiliation(s)
- Pengfei Xiao
- State Key Laboratory of Powder Metallurgy, Central South University Changsha 410083 P. R. China
| | - Zhongming Wang
- State Key Laboratory of Powder Metallurgy, Central South University Changsha 410083 P. R. China
| | - Kecheng Long
- State Key Laboratory of Powder Metallurgy, Central South University Changsha 410083 P. R. China
| | - Jixu Yang
- State Key Laboratory of Powder Metallurgy, Central South University Changsha 410083 P. R. China
| | - Xinsheng Liu
- State Key Laboratory of Powder Metallurgy, Central South University Changsha 410083 P. R. China
| | - Canhui Ling
- State Key Laboratory of Powder Metallurgy, Central South University Changsha 410083 P. R. China
| | - Libao Chen
- State Key Laboratory of Powder Metallurgy, Central South University Changsha 410083 P. R. China
- National Energy Metal Resources and New Materials Key Laboratory, Central South University Changsha 410083 P. R. China
| | - Lin Mei
- State Key Laboratory of Powder Metallurgy, Central South University Changsha 410083 P. R. China
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4
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Ding X, Zhou Q, Li X, Xiong X. Fast-charging anodes for lithium ion batteries: progress and challenges. Chem Commun (Camb) 2024; 60:2472-2488. [PMID: 38314874 DOI: 10.1039/d4cc00110a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2024]
Abstract
Slow charging speed has been a serious constraint to the promotion of electric vehicles (EVs), and therefore the development of advanced lithium-ion batteries (LIBs) with fast-charging capability has become an urgent task. Thanks to its low price and excellent overall electrochemical performance, graphite has dominated the anode market for the past 30 years. However, it is difficult to meet the development needs of fast-charging batteries using graphite anodes due to their fast capacity degradation and safety hazards under high-current charging processes. This feature article describes the failure mechanism of graphite anodes under fast charging, and then summarizes the basic principles, current research progress, advanced strategies and challenges of fast-charging anodes represented by graphite, lithium titanate (Li4Ti5O12) and niobium-based oxides. Moreover, we look forward to the development prospects of fast-charging anodes and provide some guidance for future research in the field of fast-charging batteries.
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Affiliation(s)
- Xiaobo Ding
- School of Environment and Energy, Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials, South China University of Technology, Guangzhou 510006, P. R. China.
| | - Qingfeng Zhou
- School of Environment and Energy, Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials, South China University of Technology, Guangzhou 510006, P. R. China.
| | - Xiaodan Li
- School of Environment and Energy, Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials, South China University of Technology, Guangzhou 510006, P. R. China.
| | - Xunhui Xiong
- School of Environment and Energy, Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials, South China University of Technology, Guangzhou 510006, P. R. China.
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5
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De Angelis P, Cappabianca R, Fasano M, Asinari P, Chiavazzo E. Enhancing ReaxFF for molecular dynamics simulations of lithium-ion batteries: an interactive reparameterization protocol. Sci Rep 2024; 14:978. [PMID: 38200063 PMCID: PMC10782028 DOI: 10.1038/s41598-023-50978-5] [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: 10/06/2023] [Accepted: 12/28/2023] [Indexed: 01/12/2024] Open
Abstract
Lithium-ion batteries (LIBs) have become an essential technology for the green economy transition, as they are widely used in portable electronics, electric vehicles, and renewable energy systems. The solid-electrolyte interphase (SEI) is a key component for the correct operation, performance, and safety of LIBs. The SEI arises from the initial thermal metastability of the anode-electrolyte interface, and the resulting electrolyte reduction products stabilize the interface by forming an electrochemical buffer window. This article aims to make a first-but important-step towards enhancing the parametrization of a widely-used reactive force field (ReaxFF) for accurate molecular dynamics (MD) simulations of SEI components in LIBs. To this end, we focus on Lithium Fluoride (LiF), an inorganic salt of great interest due to its beneficial properties in the passivation layer. The protocol relies heavily on various Python libraries designed to work with atomistic simulations allowing robust automation of all the reparameterization steps. The proposed set of configurations, and the resulting dataset, allow the new ReaxFF to recover the solid nature of the inorganic salt and improve the mass transport properties prediction from MD simulation. The optimized ReaxFF surpasses the previously available force field by accurately adjusting the diffusivity of lithium in the solid lattice, resulting in a two-order-of-magnitude improvement in its prediction at room temperature. However, our comprehensive investigation of the simulation shows the strong sensitivity of the ReaxFF to the training set, making its ability to interpolate the potential energy surface challenging. Consequently, the current formulation of ReaxFF can be effectively employed to model specific and well-defined phenomena by utilizing the proposed interactive reparameterization protocol to construct the dataset. Overall, this work represents a significant initial step towards refining ReaxFF for precise reactive MD simulations, shedding light on the challenges and limitations of ReaxFF force field parametrization. The demonstrated limitations emphasize the potential for developing more versatile and advanced force fields to upscale ab initio simulation through our interactive reparameterization protocol, enabling more accurate and comprehensive MD simulations in the future.
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Affiliation(s)
- Paolo De Angelis
- Department of Energy "Galileo Ferraris", Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129, Torino, Italy.
| | - Roberta Cappabianca
- Department of Energy "Galileo Ferraris", Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129, Torino, Italy
| | - Matteo Fasano
- Department of Energy "Galileo Ferraris", Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129, Torino, Italy
| | - Pietro Asinari
- Department of Energy "Galileo Ferraris", Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129, Torino, Italy.
- Istituto Nazionale di Ricerca Metrologica, Strada delle Cacce 91, 10135, Torino, Italy.
| | - Eliodoro Chiavazzo
- Department of Energy "Galileo Ferraris", Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129, Torino, Italy.
- Istituto Nazionale di Ricerca Metrologica, Strada delle Cacce 91, 10135, Torino, Italy.
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6
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Cao Y, Zu L, Du X, Franks GV, Liang Q, Li D. Solvent Effect on the Nanotextural Formation of Reduced Graphene Oxide Membranes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:15260-15267. [PMID: 37851543 DOI: 10.1021/acs.langmuir.3c01957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2023]
Abstract
Solvent is involved in many wet-chemical synthesis and bottom-up assembly processes. Understanding its influence on the nanotextural formation of the resultant assemblies is essential for the design and control of the properties for targeted applications. With wet chemically reduced graphene oxide (rGO) membranes as a materials platform, this study investigates the solvent effect on nanotexture formation in 2D nanomaterial-based membranes through light scattering and electrochemical characterization. Our finding indicates that the nanotexture of the resultant rGO membrane is largely correlated to the dielectric constant of the solvent. Specifically, solvents with higher dielectric constants yield rGO membranes with more wrinkled, loosely stacked, and less graphitized structures. In contrast, solvents with a lower dielectric constant tend to yield densely stacked structures with larger graphitized domains. Our finding underscores the important role of solvents in wet processing and nanoengineering of 2D nanomaterial-based membranes and provides valuable insights for their controlled synthesis and application.
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Affiliation(s)
- Yang Cao
- Department of Chemical Engineering, University of Melbourne, Parkville, Victoria 3010, Australia
| | - Lianhai Zu
- Department of Chemical Engineering, University of Melbourne, Parkville, Victoria 3010, Australia
| | - Xiaoyang Du
- Department of Chemical Engineering, University of Melbourne, Parkville, Victoria 3010, Australia
| | - George V Franks
- Department of Chemical Engineering, University of Melbourne, Parkville, Victoria 3010, Australia
| | - Qinghua Liang
- Department of Chemical Engineering, University of Melbourne, Parkville, Victoria 3010, Australia
- Key Laboratory of Rare Earths, Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou, Jiangxi 341000, China
| | - Dan Li
- Department of Chemical Engineering, University of Melbourne, Parkville, Victoria 3010, Australia
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7
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Sun Q, Zeng G, Li J, Wang S, Botifoll M, Wang H, Li D, Ji F, Cheng J, Shao H, Tian Y, Arbiol J, Cabot A, Ci L. Is Soft Carbon a More Suitable Match for SiO x in Li-Ion Battery Anodes? SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2302644. [PMID: 37144432 DOI: 10.1002/smll.202302644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 04/21/2023] [Indexed: 05/06/2023]
Abstract
Silicon oxide (SiOx ), inheriting the high-capacity characteristic of silicon-based materials but possessing superior cycling stability, is a promising anode material for next-generation Li-ion batteries. SiOx is typically applied in combination with graphite (Gr), but the limited cycling durability of the SiOx /Gr composites curtails large-scale applications. In this work, this limited durability is demonstrated in part related to the presence of a bidirectional diffusion at the SiOx /Gr interface, which is driven by their intrinsic working potential differences and the concentration gradients. When Li on the Li-rich surface of SiOx is captured by Gr, the SiOx surface shrinks, hindering further lithiation. The use of soft carbon (SC) instead of Gr can prevent such instability is further demonstrated. The higher working potential of SC avoids bidirectional diffusion and surface compression thus allowing further lithiation. In this scenario, the evolution of the Li concentration gradient in SiOx conforms to its spontaneous lithiation process, benefiting the electrochemical performance. These results highlight the focus on the working potential of carbon as a strategy for rational optimization of SiOx /C composites toward improved battery performance.
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Affiliation(s)
- Qing Sun
- State Key Laboratory of Advanced Welding and Joining, School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China
- Key Laboratory for Liquid-Solid Structural Evolution & Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Jinan, 250061, China
| | - Guifang Zeng
- Catalonia Institute for Energy Research - IREC, Sant Adrià de Besòs, Barcelona, 08930, Spain
- Department of Electronic and Biomedical Engineering, Universitat de Barcelona, Barcelona, 08028, Spain
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin, 150001, China
| | - Jing Li
- State Key Laboratory of Advanced Welding and Joining, School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China
- Key Laboratory for Liquid-Solid Structural Evolution & Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Jinan, 250061, China
| | - Shang Wang
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin, 150001, China
| | - Marc Botifoll
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, Barcelona, 08193, Spain
| | - Hao Wang
- Land Transport Authority of Singapore, Singapore, 179102, Singapore
| | - Deping Li
- State Key Laboratory of Advanced Welding and Joining, School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China
| | - Fengjun Ji
- State Key Laboratory of Advanced Welding and Joining, School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China
| | - Jun Cheng
- State Key Laboratory of Advanced Welding and Joining, School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China
| | - Huaiyu Shao
- Guangdong-Hong Kong-Macau Joint Laboratory for Photonic-Thermal-Electrical Energy Materials and Devices, Institute of Applied Physics and Materials Engineering, University of Macau, Macao SAR, 999078, China
| | - Yanhong Tian
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin, 150001, China
| | - Jordi Arbiol
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, Barcelona, 08193, Spain
| | - Andreu Cabot
- Catalonia Institute for Energy Research - IREC, Sant Adrià de Besòs, Barcelona, 08930, Spain
- ICREA Pg. Lluis Companys, Barcelona, 08010, Spain
| | - Lijie Ci
- State Key Laboratory of Advanced Welding and Joining, School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China
- Key Laboratory for Liquid-Solid Structural Evolution & Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Jinan, 250061, China
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8
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Dai P, Kong X, Yang H, Kuang S, Zeng J, Zhao J. Synergistic Effect of Dual-Anion Additives Promotes the Fast Dynamics and High-Voltage Performance of Ni-Rich Lithium-Ion Batteries by Regulating the Electrode/Electrolyte Interface. ACS APPLIED MATERIALS & INTERFACES 2022; 14:39927-39938. [PMID: 36001325 DOI: 10.1021/acsami.2c08724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Combining the Ni-rich layered cathode (Ni ≥ 80%) with high operating voltage is considered as a feasible solution to achieve high-energy lithium-ion batteries (LIBs). However, the working voltage is limited in practical applications due to the poor interface stability in traditional carbonate electrolytes. Herein, LiBF4 and LiNO3 are added as film-forming additives and 1.0 M LiPF6 in SL/FEC/EMC with 0.5 wt % LiBF4-LiNO3 (HVE) is obtained. A uniform and inorganic-rich cathode electrolyte interphase (CEI) as well as a dense and Li3N-LiF-rich solid electrolyte interphase (SEI) could be in situ generated on LiNi0.8Co0.1Mn0.1O2 (NCM811) and graphite (Gr) electrode in HVE, respectively. The robust interface film with electronic insulation and ionic conductivity effectively stabilizes the NCM811/Gr-electrolyte interfaces and improves the Li+ diffusion kinetics, enabling the high-load NCM811-Gr to maintain 85.2% capacity (∼180 mA h g-1) after 300 cycles under 4.4 V. Besides, the 4.2 V NCM811-Gr retains 90.4% of the initial capacity after 200 cycles at 2 C (∼6 mA h cm-2). Compared with the traditional carbonate electrolyte (LB301), HVE has obvious advantages in terms of high-voltage and fast dynamics performance. Especially, good thermal stability and economy make HVE a promising electrolyte for commercial high-energy LIBs.
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Affiliation(s)
- Pengpeng Dai
- 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
| | - Xiangbang Kong
- 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
| | - Huiya Yang
- 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
| | - Silan Kuang
- 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
| | - Jing Zeng
- 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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9
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Zhao ZX, Zhu HL, Liu W, Qi YX, Li T, Bai YJ. Effectively raising the rate performance and cyclability of a graphite anode via hydrothermal modification with melamine and its electrochemical derivatives. NEW J CHEM 2022. [DOI: 10.1039/d2nj00394e] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The inferior rate performance and cyclability of a graphite anode could be effectively meliorated by hydrothermal modification with melamine.
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Affiliation(s)
- Zong-Xiao Zhao
- Key Laboratory of Liquid–Solid Structural Evolution and Processing of Materials of Ministry of Education, State Key Laboratory of Crystal Materials, Shandong University, Jinan, Shandong, 250061, P. R. China
| | - Hui-Ling Zhu
- School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao, 266590, P. R. China
| | - Wei Liu
- Key Laboratory of Liquid–Solid Structural Evolution and Processing of Materials of Ministry of Education, State Key Laboratory of Crystal Materials, Shandong University, Jinan, Shandong, 250061, P. R. China
| | - Yong-Xin Qi
- Key Laboratory of Liquid–Solid Structural Evolution and Processing of Materials of Ministry of Education, State Key Laboratory of Crystal Materials, Shandong University, Jinan, Shandong, 250061, P. R. China
| | - Tao Li
- Key Laboratory of Liquid–Solid Structural Evolution and Processing of Materials of Ministry of Education, State Key Laboratory of Crystal Materials, Shandong University, Jinan, Shandong, 250061, P. R. China
| | - Yu-Jun Bai
- Key Laboratory of Liquid–Solid Structural Evolution and Processing of Materials of Ministry of Education, State Key Laboratory of Crystal Materials, Shandong University, Jinan, Shandong, 250061, P. R. China
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