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Kuo LY, Roitzheim C, Valencia H, Mayer J, Möller S, Myung ST, Finsterbusch M, Guillon O, Fattakhova-Rohlfing D, Kaghazchi P. Doping-Induced Surface and Grain Boundary Effects in Ni-Rich Layered Cathode Materials. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2307678. [PMID: 38258588 DOI: 10.1002/smll.202307678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 12/21/2023] [Indexed: 01/24/2024]
Abstract
In this work, the effects of dopant size and oxidation state on the structure and electrochemical performance of LiNi0.8Co0.1Mn0.1O2 (NCM811) are investigated. It is shown that doping with boron (B) which has a small ionic radius and an oxidation state of 3+, leads to the formation of a boron oxide-containing surface coating (probably Li3BO3), mainly on the outer surface of the secondary particles. Due to this effect, boron only slightly affects the size of the primary particle and the initial capacity, but significantly improves the capacity retention. On the other hand, the dopant ruthenium (Ru) with a larger ionic radius and a higher oxidation state of 5+ can be stabilized within the secondary particles and does not experience a segregation to the outer agglomerate surface. However, the Ru dopant preferentially occupies incoherent grain boundary sites, resulting in smaller primary particle size and initial capacity than for the B-doped and pristine NCM811. This work demonstrates that a small percentage of dopant (2 mol%) cannot significantly affect bulk properties, but it can strongly influence the surface and/or grain boundary properties of microstructure and thus the overall performance of cathode materials.
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Affiliation(s)
- Liang-Yin Kuo
- Department of Chemical Engineering, Ming Chi University of Technology, No. 84, Gongzhuan Rd., New Taipei City, 243303, Taiwan
| | - Christoph Roitzheim
- Institute of Energy and Climate Research, Materials Synthesis and Processing (IEK-1), Forschungszentrum Jülich GmbH, 52425, Jülich, Germany
| | - Helen Valencia
- Central Facility for Electron Microscopy (GFE), RWTH Aachen University, 52074, Aachen, Germany
- Ernst Ruska-Centre (ER-C 2), Forschungszentrum Jülich GmbH, 52425, Jülich, Germany
| | - Joachim Mayer
- Central Facility for Electron Microscopy (GFE), RWTH Aachen University, 52074, Aachen, Germany
- Ernst Ruska-Centre (ER-C 2), Forschungszentrum Jülich GmbH, 52425, Jülich, Germany
| | - Sören Möller
- Institute of Energy and Climate Research, Materials Synthesis and Processing (IEK-1), Forschungszentrum Jülich GmbH, 52425, Jülich, Germany
| | - Seung-Taek Myung
- Department of Nanotechnology and Advanced Materials Engineering, Sejong University, 98 Gunja-dong, Gwangjin-gu, Seoul, 05006, South Korea
| | - Martin Finsterbusch
- Institute of Energy and Climate Research, Materials Synthesis and Processing (IEK-1), Forschungszentrum Jülich GmbH, 52425, Jülich, Germany
| | - Olivier Guillon
- Institute of Energy and Climate Research, Materials Synthesis and Processing (IEK-1), Forschungszentrum Jülich GmbH, 52425, Jülich, Germany
| | - Dina Fattakhova-Rohlfing
- Institute of Energy and Climate Research, Materials Synthesis and Processing (IEK-1), Forschungszentrum Jülich GmbH, 52425, Jülich, Germany
- Faculty of Engineering and Center for Nanointegration Duisburg-Essen CENIDE, University Duisburg-Essen, Lotharstraße 1, 47057, Duisburg, Germany
| | - Payam Kaghazchi
- Institute of Energy and Climate Research, Materials Synthesis and Processing (IEK-1), Forschungszentrum Jülich GmbH, 52425, Jülich, Germany
- MESA+ Institute for Nanotechnology, University of Twente, P. O. Box 217, Enschede, 7500AE, The Netherlands
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Li H, Wang L, Song Y, Zhang Z, Du A, Tang Y, Wang J, He X. Why the Synthesis Affects Performance of Layered Transition Metal Oxide Cathode Materials for Li-Ion Batteries. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2312292. [PMID: 38216139 DOI: 10.1002/adma.202312292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 12/28/2023] [Indexed: 01/14/2024]
Abstract
The limited cyclability of high-specific-energy layered transition metal oxide (LiTMO2) cathode materials poses a significant challenge to the industrialization of batteries incorporating these materials. This limitation can be attributed to various factors, with the intrinsic behavior of the crystal structure during the cycle process being a key contributor. These factors include phase transition induced cracks, reduced Li active sites due to Li/Ni mixing, and slower Li+ migration. In addition, the presence of synthesis-induced heterogeneous phases and lattice defects cannot be disregarded as they also contribute to the degradation in performance. Therefore, gaining a profound understanding of the intricate relationship among material synthesis, structure, and performance is imperative for the development of LiTMO2. This paper highlights the pivotal role of structural play in LiTMO2 materials and provides a comprehensive overview of how various control factors influence the specific pathways of structural evolution during the synthesis process. In addition, it summarizes the scientific challenges associated with diverse modification approaches currently employed to address the cyclic failure of materials. The overarching goal is to provide readers with profound insights into the study of LiTMO2.
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Affiliation(s)
- Hang Li
- School of Automotive Studies, Tongji University, Shanghai, 201804, China
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, 100084, China
| | - Li Wang
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, 100084, China
| | - Youzhi Song
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, 100084, China
| | - Zhiguo Zhang
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, 100084, China
| | - Aimin Du
- School of Automotive Studies, Tongji University, Shanghai, 201804, China
| | - Yaping Tang
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, 100084, China
| | - Jianlong Wang
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, 100084, China
| | - Xiangming He
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, 100084, China
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Liang P, Qi K, Chen S, Ding X, Wu X, Wu C, Zhu Y. Low-Electronegativity Cationic High-Entropy Doping to Trigger Stable Anion Redox Activity for High-Ni Co-Free Layered Cathodes in Li-Ion Batteries. Angew Chem Int Ed Engl 2024; 63:e202318186. [PMID: 38179819 DOI: 10.1002/anie.202318186] [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: 11/28/2023] [Revised: 12/26/2023] [Accepted: 01/03/2024] [Indexed: 01/06/2024]
Abstract
LiNi0.8 Co0.1 Mn0.1 O2 (NCM-811) exhibits the highest capacity in commercial lithium-ion batteries (LIBs), and the high Ni content (80 %) provides the only route for high energy density. However, the cationic structure instability arisen from the increase of Ni content (>80 %) limits the further increase of the capacity, and inevitable O2 release related to anionic structure instability hinders the utilization of anion redox activity. Here, by comparing various combinations of high-entropy dopants substituted Co element, we propose a low-electronegativity cationic high-entropy doping strategy to fabricate the high-Ni Co-free layered cathode (LiNi0.8 Mn0.12 Al0.02 Ti0.02 Cr0.02 Fe0.02 O2 ) that exhibits much higher capacity and cycling stability. Configurational disorder originated from cationic high-entropy doping in transition metal (TM) layer, anchors the oxidized lattice oxygen ((O2 )n- ) to preserve high (O2 )n- content, triggering the anion redox activity. Electron transfer induced by applying TM dopants with lower electronegativity than that of Co element, increases the electron density of O in TM-O octahedron (TM-O6 ) configuration to reach higher (O2 )n- content, resulting in the higher anion redox activity. With exploring the stabilization effect on both cations and anions of high-entropy doping and low-electronegativity cationic modified anion redox activity, we propose an innovative and variable pathway for rationally tuning the properties of commercial cathodes.
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Affiliation(s)
- Pengrui Liang
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Kaiwen Qi
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Shiyuan Chen
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Xuan Ding
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Xiaojun Wu
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Changzheng Wu
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Yongchun Zhu
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, 230026, P. R. China
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Chang L, Yang W, Cai K, Bi X, Wei A, Yang R, Liu J. A review on nickel-rich nickel-cobalt-manganese ternary cathode materials LiNi 0.6Co 0.2Mn 0.2O 2 for lithium-ion batteries: performance enhancement by modification. MATERIALS HORIZONS 2023; 10:4776-4826. [PMID: 37771314 DOI: 10.1039/d3mh01151h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/30/2023]
Abstract
The new energy era has put forward higher requirements for lithium-ion batteries, and the cathode material plays a major role in the determination of electrochemical performance. Due to the advantages of low cost, environmental friendliness, and reversible capacity, high-nickel ternary materials are considered to be one of ideal candidates for power batteries now and in the future. At present, the main design idea of ternary materials is to fully consider the structural stability and safety performance of batteries while maintaining high energy density. Ternary materials currently face problems such as low lithium-ion diffusion rate and irreversible collapse of the structure, although the battery performance can be improved utilizing coating, ion doping, etc., the actual demand requires a more effective modification method based on the intrinsic properties of the material. Based on the summary of the current research status of the ternary material LiNi0.6Co0.2Mn0.2O2 (NCM622), a comparative study of the modification paths of the material was conducted from the level of molecular action mechanism. Finally, the major problems of ternary cathode materials and the future development direction are pointed out to stimulate more innovative insights and facilitate their practical applications.
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Affiliation(s)
- Longjiao Chang
- School of Chemical and Material Engineering, Bohai University, Jinzhou, 121013, Liaoning, China.
- Liaoning Key Laboratory of Engineering Technology Research Center of Silicon Materials, Jinzhou, 121013, Liaoning, China
- Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province, Qinghuangdao, 066004, Hebei, China
| | - Wei Yang
- School of Chemical and Material Engineering, Bohai University, Jinzhou, 121013, Liaoning, China.
- Liaoning Key Laboratory of Engineering Technology Research Center of Silicon Materials, Jinzhou, 121013, Liaoning, China
| | - Kedi Cai
- School of Chemical and Material Engineering, Bohai University, Jinzhou, 121013, Liaoning, China.
- Liaoning Engineering Technology Center of Supercapacitor, Bohai University, Jinzhou, 121013, China
| | - Xiaolong Bi
- School of Chemical and Material Engineering, Bohai University, Jinzhou, 121013, Liaoning, China.
- Liaoning Key Laboratory of Engineering Technology Research Center of Silicon Materials, Jinzhou, 121013, Liaoning, China
| | - Anlu Wei
- School of Chemical and Material Engineering, Bohai University, Jinzhou, 121013, Liaoning, China.
- Liaoning Key Laboratory of Engineering Technology Research Center of Silicon Materials, Jinzhou, 121013, Liaoning, China
| | - Ruifen Yang
- School of Chemical and Material Engineering, Bohai University, Jinzhou, 121013, Liaoning, China.
- Liaoning Key Laboratory of Engineering Technology Research Center of Silicon Materials, Jinzhou, 121013, Liaoning, China
| | - Jianan Liu
- School of Chemical and Material Engineering, Bohai University, Jinzhou, 121013, Liaoning, China.
- Liaoning Key Laboratory of Engineering Technology Research Center of Silicon Materials, Jinzhou, 121013, Liaoning, China
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Wei T, Lu J, Zhang P, Yang G, Sun C, Zhou Y, Zhuang Q, Tang Y. Metal–organic framework-derived Co3O4 modified nickel foam-based dendrite-free anode for robust lithium metal batteries. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.107947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Zhao Z, Huang X, Shao Y, Xu S, Chen L, Shi L, Yi Q, Shang C, Zhang D. Surface modification of Na0.44MnO2 via a nonaqueous solution-assisted coating for ultra-Stable and High-Rate sodium-ion batteries. CHEMICAL ENGINEERING JOURNAL ADVANCES 2022. [DOI: 10.1016/j.ceja.2022.100292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Ou L, Nong S, Yang R, Li Y, Tao J, Zhang P, Huang H, Liang X, Lan Z, Liu H, Huang D, Guo J, Zhou W. Multi-Role Surface Modification of Single-Crystalline Nickel-Rich Lithium Nickel Cobalt Manganese Oxides Cathodes with WO3 to Improve Performance for Lithium-Ion Batteries. NANOMATERIALS 2022; 12:nano12081324. [PMID: 35458031 PMCID: PMC9026308 DOI: 10.3390/nano12081324] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 04/04/2022] [Accepted: 04/06/2022] [Indexed: 12/07/2022]
Abstract
Compared with the polycrystalline system, the single-crystalline ternary cathode material has better cycle stability because the only primary particles without grain boundaries effectively alleviate the formation of micro/nanocracks and retain better structural integrity. Therefore, it has received extensive research attention. There is no consistent result whether tungsten oxide acts as doping and/or coating from the surface modification of the polycrystalline system. Meanwhile, there is no report on the surface modification of the single-crystalline system by tungsten oxide. In this paper, multirole surface modification of single-crystalline nickel-rich ternary cathode material LiNi0.6Co0.2Mn0.2O2 by WO3 is studied by a simple method of adding WO3 followed by calcination. The results show that with the change in the amount of WO3 added, single-crystalline nickel-rich ternary cathode material can be separately doped, separately coated, and both doped and coated. Either doping or coating effectively enhances the structural stability, reduces the polarization of the material, and improves the lithium-ion diffusion kinetics, thus improving the cycle stability and rate performance of the battery. Interestingly, both doping and coating (for SC-NCM622-0.5%WO3) do not show a more excellent synergistic effect, while the single coating (for SC-NCM622-1.0%WO3) after eliminating the rock-salt phase layer performs the most excellent modification effect.
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Huang Q, Ding R, Chen L, Lu Y, Shi Q, Zhang Q, Nie Q, Su Y, Wu F. Dual-Decoration and Mechanism Analysis of Ni-rich LiNi 0.83Co 0.11Mn 0.06O 2 Cathodes by Na 2PO 3F. ACTA CHIMICA SINICA 2022. [DOI: 10.6023/a21100477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Park S, Park K, Shin JS, Ko G, Kim W, Park JY, Kwon K. Utilizing the Intrinsic Thermal Instability of Swedenborgite Structured YBaCo 4O 7+δ as an Opportunity for Material Engineering in Lithium-Ion Batteries by Er and Ga Co-Doping Processes. MATERIALS (BASEL, SWITZERLAND) 2021; 14:4565. [PMID: 34443088 PMCID: PMC8400947 DOI: 10.3390/ma14164565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 08/08/2021] [Accepted: 08/11/2021] [Indexed: 11/16/2022]
Abstract
We firstly introduce Er and Ga co-doped swedenborgite-structured YBaCo4O7+δ (YBC) as a cathode-active material in lithium-ion batteries (LIBs), aiming at converting the phase instability of YBC at high temperatures into a strategic way of enhancing the structural stability of layered cathode-active materials. Our recent publication reported that Y0.8Er0.2BaCo3.2Ga0.8O7+δ (YEBCG) showed excellent phase stability compared to YBC in a fuel cell operating condition. By contrast, the feasibility of the LiCoO2 (LCO) phase, which is derived from swedenborgite-structured YBC-based materials, as a LIB cathode-active material is investigated and the effects of co-doping with the Er and Ga ions on the structural and electrochemical properties of Li-intercalated YBC are systemically studied. The intrinsic swedenborgite structure of YBC-based materials with tetrahedrally coordinated Co2+/Co3+ are partially transformed into octahedrally coordinated Co3+, resulting in the formation of an LCO layered structure with a space group of R-3m that can work as a Li-ion migration path. Li-intercalated YEBCG (Li[YEBCG]) shows effective suppression of structural phase transition during cycling, leading to the enhancement of LIB performance in Coulombic efficiency, capacity retention, and rate capability. The galvanostatic intermittent titration technique, cyclic voltammetry and electrochemical impedance spectroscopy are performed to elucidate the enhanced phase stability of Li[YEBCG].
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Affiliation(s)
- Sanghyuk Park
- Department of Energy & Mineral Resources Engineering, Sejong University, Seoul 05006, Korea; (S.P.); (G.K.); (W.K.)
| | - Kwangho Park
- HMC, Department of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul 05006, Korea; (K.P.); (J.-S.S.)
| | - Ji-Seop Shin
- HMC, Department of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul 05006, Korea; (K.P.); (J.-S.S.)
| | - Gyeongbin Ko
- Department of Energy & Mineral Resources Engineering, Sejong University, Seoul 05006, Korea; (S.P.); (G.K.); (W.K.)
| | - Wooseok Kim
- Department of Energy & Mineral Resources Engineering, Sejong University, Seoul 05006, Korea; (S.P.); (G.K.); (W.K.)
| | - Jun-Young Park
- HMC, Department of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul 05006, Korea; (K.P.); (J.-S.S.)
| | - Kyungjung Kwon
- Department of Energy & Mineral Resources Engineering, Sejong University, Seoul 05006, Korea; (S.P.); (G.K.); (W.K.)
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