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Zou L, Zhong J, Wei Q, Lin Y, Zhou Y, Fu Y, Yu R, Gao P, Shu H, Liu L, Yang W, Yang X, Wang X. Enabling Rapid and Stable Sodium Storage via a P2-Type Layered Cathode with High-Voltage Zero-Phase Transition Behavior. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2400315. [PMID: 38488741 DOI: 10.1002/smll.202400315] [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: 01/14/2024] [Revised: 02/26/2024] [Indexed: 08/09/2024]
Abstract
Currently, a major target in the development of Na-ion batteries is the concurrent attainment of high-rate capacity and long cycling stability. Herein, an advanced Na-ion battery with high-rate capability and long cycle stability based on Li/Ti co-doped P2-type Na0.67Mn0.67Ni0.33O2, a host material with high-voltage zero-phase transition behavior and fast Na+ migration/conductivity during dynamic de-embedding process, is constructed. Experimental results and theoretical calculations reveal that the two-element doping strategy promotes a mutually reinforcing effect, which greatly facilitates the transfer capability of Na+. The cation Ti4+ doping is a dominant high voltage, significantly elevating the operation voltage to 4.4 V. Meanwhile, doping Li+ shows the function in charge transfer, improving the rate performance and prolonging cycling lifespan. Consequently, the designed P2-Na0.75Mn0.54Ni0.27Li0.14Ti0.05O2 cathode material exhibits discharge capacities of 129, 104, and 85 mAh g- 1 under high voltage of 4.4 V at 1, 10, and 20 C, respectively. More importantly, the full-cell delivers a high initial capacity of 198 mAh g-1 at 0.1 C (17.3 mA g-1) and a capacity retention of 73% at 5 C (865 mA g-1) after 1000 cycles, which is seldom witnessed in previous reports, emphasizing their potential applications in advanced energy storage.
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Affiliation(s)
- Li Zou
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, National Base for International Science & Technology Cooperation, Hunan Province Key Laboratory for Electrochemical Energy Storage and Conversion, School of Chemistry, Xiangtan University, Xiangtan, 411105, P. R. China
| | - Jiang Zhong
- Institute of Micro/Nano Materials and Devices, Ningbo University of Technology, Ningbo, 315211, P. R. China
| | - Qiliang Wei
- Institute of Micro/Nano Materials and Devices, Ningbo University of Technology, Ningbo, 315211, P. R. China
| | - Yong Lin
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, National Base for International Science & Technology Cooperation, Hunan Province Key Laboratory for Electrochemical Energy Storage and Conversion, School of Chemistry, Xiangtan University, Xiangtan, 411105, P. R. China
| | - Yijie Zhou
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, National Base for International Science & Technology Cooperation, Hunan Province Key Laboratory for Electrochemical Energy Storage and Conversion, School of Chemistry, Xiangtan University, Xiangtan, 411105, P. R. China
| | - Yanqing Fu
- Institute of Micro/Nano Materials and Devices, Ningbo University of Technology, Ningbo, 315211, P. R. China
| | - Ruizhi Yu
- Institute of Micro/Nano Materials and Devices, Ningbo University of Technology, Ningbo, 315211, P. R. China
| | - Ping Gao
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, National Base for International Science & Technology Cooperation, Hunan Province Key Laboratory for Electrochemical Energy Storage and Conversion, School of Chemistry, Xiangtan University, Xiangtan, 411105, P. R. China
| | - Hongbo Shu
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, National Base for International Science & Technology Cooperation, Hunan Province Key Laboratory for Electrochemical Energy Storage and Conversion, School of Chemistry, Xiangtan University, Xiangtan, 411105, P. R. China
| | - Li Liu
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, National Base for International Science & Technology Cooperation, Hunan Province Key Laboratory for Electrochemical Energy Storage and Conversion, School of Chemistry, Xiangtan University, Xiangtan, 411105, P. R. China
| | - Weiyou Yang
- Institute of Micro/Nano Materials and Devices, Ningbo University of Technology, Ningbo, 315211, P. R. China
| | - Xiukang Yang
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, National Base for International Science & Technology Cooperation, Hunan Province Key Laboratory for Electrochemical Energy Storage and Conversion, School of Chemistry, Xiangtan University, Xiangtan, 411105, P. R. China
| | - Xianyou Wang
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, National Base for International Science & Technology Cooperation, Hunan Province Key Laboratory for Electrochemical Energy Storage and Conversion, School of Chemistry, Xiangtan University, Xiangtan, 411105, P. R. China
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Kumar K, Kundu R. Doping Engineering in Electrode Material for Boosting the Performance of Sodium Ion Batteries. ACS APPLIED MATERIALS & INTERFACES 2024; 16:37346-37362. [PMID: 38920092 DOI: 10.1021/acsami.4c06305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/27/2024]
Abstract
In recent years, sodium ion batteries (SIBs) emerged as promising alternative candidates for lithium ion batteries (LIBs) due to the high abundance and low cost of sodium resources. However, their commercialization has been hindered by inherent limitations, such as low energy density and poor cycling stability. To address these issues, doping methodology is one of the most promising approaches to boosting the structural and electrochemical properties of SIB electrodes. This review provides a comprehensive overview of recent advancements in doping strategies, focusing on the improvement of the performance of SIBs. Various dopants including s- and p-block elements, transition metals, oxides, carbonaceous materials, and many more dopants are discussed in terms of their effects on enhancing the electrochemical properties of SIBs. Furthermore, the mechanisms responsible for the improvement in the performance of doped SIBs materials are also discussed. It also highlights the importance of doping sites in the crystal lattice, which also play a crucial role in doping in optimizing electrode structure, enhancing ion diffusion kinetics, and stabilizing electrode/electrolyte interfaces. The review ends by looking at the recent studies in simultaneous multiple heteroatom doping, offering valuable perspectives for a high performance SIB. This study provides valuable insight into the researchers and battery industries striving for advancements in energy storage technologies.
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Affiliation(s)
- Kundan Kumar
- Analytical and Applied Chemistry Division, CSIR-National Metallurgical Laboratory, Jamshedpur 831007, India
| | - Rajen Kundu
- Analytical and Applied Chemistry Division, CSIR-National Metallurgical Laboratory, Jamshedpur 831007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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Yang T, Wang X, Liu Z, Liu Q. Cation Configuration and Structural Degradation of Layered Transition Metal Oxides in Sodium-Ion Batteries. ACS NANO 2024; 18:18834-18851. [PMID: 38995623 DOI: 10.1021/acsnano.4c05739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/13/2024]
Abstract
Given the pressing depletion of lithium resources, sodium-ion batteries (SIBs) stand out as a cost-effective alternative for energy storage solutions in the near future. Layered transition metal oxides (LTMOs) emerge as the leading cathode materials for SIBs due to their superior specific capacities and abundant raw materials. Nonetheless, achieving long-term stability in LTMOs for SIBs remains a challenge due to the inevitable structural degradation during charge-discharge cycles. The complexity and diversity of cation configurations/superstructures within the transition metal layers (TMO2) further complicate the understanding for newcomers. Therefore, it is critical to summarize and discuss the factors leading to structural degradation and the available strategies for enhancing LTMOs' stability. In this review, the cationic configurations of TMO2 layers are introduced from a crystallographic perspective. It then identifies and examines four key factors responsible for structural decay, alongside the impacts of various modification strategies. Finally, more effective and practical research approaches for investigating LTMOs have been proposed. The work aims to enhance the comprehension of the structural deterioration of LTMOs and facilitate a substantial improvement in their cycle life and energy density.
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Affiliation(s)
- Tingting Yang
- Department of Physics, City University of Hong Kong, Hong Kong 999077, People's Republic of China
| | - Xingyu Wang
- Department of Physics, City University of Hong Kong, Hong Kong 999077, People's Republic of China
| | - Zhengbo Liu
- Department of Physics, City University of Hong Kong, Hong Kong 999077, People's Republic of China
| | - Qi Liu
- Department of Physics, City University of Hong Kong, Hong Kong 999077, People's Republic of China
- Shenzhen Research Institute, City University of Hong Kong, Shenzhen 518057, Guangdong People's Republic of China
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Yao S, Wang S, Wang J, Hou Z, Gao X, Liu Y, Fu W, Nie K, Xie J, Yang Z, Yan YM. Activation of MnO 6 Units via an Interfacial Electric Field: Electron Injection into Mn t 2g for Rapid and Stable Sodium Ion Storage in CeO 2/MnO x. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2307482. [PMID: 38412428 DOI: 10.1002/smll.202307482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 10/19/2023] [Indexed: 02/29/2024]
Abstract
Manganese-based oxides (MnOx) suffer from sluggish charge diffusion kinetics and poor cycling stability in sodium ion storage. Herein, an interfacial electric field (IEF) in CeO2/MnOx is constructed to obtain high electronic/ionic conductivity and structural stability of MnOx. The as-designed CeO2/MnOx exhibits a remarkable capacity of 397 F g-1 and favorable cyclic stability with 92.13% capacity retention after 10,000 cycles. Soft X-ray absorption spectroscopy and partial density of states results reveal that the electrons are substantially injected into the Mn t2g orbitals driven by the formed IEF. Correspondingly, the MnO6 units in MnOx are effectively activated, endowing the CeO2/MnOx with fast charge transfer kinetics and high sodium ion storage capacity. Moreover, In situRaman verifies a remarkably increased structural stability of CeO2/MnOx, which is attributed to the enhanced Mn─O bond strength and efficiently stabilized MnO6 units. Mechanism studies show that the downshift of Mn 3d-band center dramatically increases the Mn 3d-O 2p orbitals overlap, thus inhibiting the Jahn-Teller (J-T) distortion of MnOx during sodium ion insertion/extraction. This work develops an advanced strategy to achieve both fast and sustainable sodium ion storage in metal oxides-based energy materials.
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Affiliation(s)
- Shuyun Yao
- State Key Laboratory of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Shiyu Wang
- State Key Laboratory of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Jinrui Wang
- State Key Laboratory of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Zishan Hou
- State Key Laboratory of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Xueying Gao
- State Key Laboratory of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Yuanming Liu
- State Key Laboratory of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Weijie Fu
- State Key Laboratory of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Kaiqi Nie
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Jiangzhou Xie
- School of Mechanical and Manufacturing Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Zhiyu Yang
- State Key Laboratory of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Yi-Ming Yan
- State Key Laboratory of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
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Li X, Lai X, Kong Q, An X, Zhan J, Li X, Liu X, Yao W. Internal Vanadium Doping and External Modification Design of P2-Type Layered Mn-Based Oxides as Competitive Cathodes toward Sodium-Ion Batteries. Chemistry 2024; 30:e202400088. [PMID: 38407545 DOI: 10.1002/chem.202400088] [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: 01/08/2024] [Revised: 02/23/2024] [Accepted: 02/25/2024] [Indexed: 02/27/2024]
Abstract
P2-type layered manganese-based oxides have attracted considerable interest as economical, cathode materials with high energy density for sodium-ion batteries (SIBs). Despite their potential, these materials still face challenges related to sluggish kinetics and structural instability. In this study, a composite cathode material, Na0.67Ni0.23Mn0.67V0.1O2@Na3V2O2(PO4)2F was developed by surface-coating P2-type Na0.67Ni0.23Mn0.67V0.1O2 with a thin layer of Na3V2O2(PO4)2F to enhance both the electrochemical sodium storage and material air stability. The optimized Na0.67Ni0.23Mn0.67V0.1O2@5wt %Na3V2O2(PO4)2F exhibited a high discharge capacity of 176 mA h g-1 within the 1.5-4.1 V range at a low current density of 17 mA g-1. At an increased current density of 850 mA g-1 within the same voltage window, it still delivered a substantial initial discharge capacity of 112 mAh g-1. These findings validate the significant enhancement of ion diffusion capabilities and rate performance in the P2-type Na0.67Ni0.33Mn0.67O2 material conferred by the composite cathode.
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Affiliation(s)
- Xin Li
- School of Mechanical Engineering, Chengdu University, No. 2025, Chengluo Avenue, Chengdu, 610106, PR China
| | - Xin Lai
- School of Mechanical Engineering, Chengdu University, No. 2025, Chengluo Avenue, Chengdu, 610106, PR China
| | - Qingquan Kong
- School of Mechanical Engineering, Chengdu University, No. 2025, Chengluo Avenue, Chengdu, 610106, PR China
- Interdisciplinary Materials Research Center, Institute for Advanced Study, Chengdu University, No. 2025, Chengluo Avenue, Chengdu, 610106, Sichuan, China
| | - Xuguang An
- School of Mechanical Engineering, Chengdu University, No. 2025, Chengluo Avenue, Chengdu, 610106, PR China
| | - Jing Zhan
- School of Mechanical Engineering, Chengdu University, No. 2025, Chengluo Avenue, Chengdu, 610106, PR China
| | - Xiaolei Li
- School of Mechanical Engineering, Chengdu University, No. 2025, Chengluo Avenue, Chengdu, 610106, PR China
| | - Xiaonan Liu
- School of Chemical Engineering, Sichuan University of Science & Engineering
| | - Weitang Yao
- School of Mechanical Engineering, Chengdu University, No. 2025, Chengluo Avenue, Chengdu, 610106, PR China
- Interdisciplinary Materials Research Center, Institute for Advanced Study, Chengdu University, No. 2025, Chengluo Avenue, Chengdu, 610106, Sichuan, China
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Hu HY, Li JY, Liu YF, Zhu YF, Li HW, Jia XB, Jian ZC, Liu HX, Kong LY, Li ZQ, Dong HH, Zhang MK, Qiu L, Wang JQ, Chen SQ, Wu XW, Guo XD, Xiao Y. Developing an abnormal high-Na-content P2-type layered oxide cathode with near-zero-strain for high-performance sodium-ion batteries. Chem Sci 2024; 15:5192-5200. [PMID: 38577355 PMCID: PMC10988596 DOI: 10.1039/d3sc06878a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 01/30/2024] [Indexed: 04/06/2024] Open
Abstract
Layered transition metal oxides (NaxTMO2) possess attractive features such as large specific capacity, high ionic conductivity, and a scalable synthesis process, making them a promising cathode candidate for sodium-ion batteries (SIBs). However, NaxTMO2 suffer from multiple phase transitions and Na+/vacancy ordering upon Na+ insertion/extraction, which is detrimental to their electrochemical performance. Herein, we developed a novel cathode material that exhibits an abnormal P2-type structure at a stoichiometric content of Na up to 1. The cathode material delivers a reversible capacity of 108 mA h g-1 at 0.2C and 97 mA h g-1 at 2C, retaining a capacity retention of 76.15% after 200 cycles within 2.0-4.3 V. In situ diffraction studies demonstrated that this material exhibits an absolute solid-solution reaction with a low volume change of 0.8% during cycling. This near-zero-strain characteristic enables a highly stabilized crystal structure for Na+ storage, contributing to a significant improvement in battery performance. Overall, this work presents a simple yet effective approach to realizing high Na content in P2-type layered oxides, offering new opportunities for high-performance SIB cathode materials.
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Affiliation(s)
- Hai-Yan Hu
- Institute for Carbon Neutralization, College of Chemistry and Materials Engineering, Wenzhou University Wenzhou 325035 P. R. China
- Wenzhou Key Laboratory of Sodium-Ion Batteries, Wenzhou University Technology Innovation Institute for Carbon Neutralization Wenzhou 325035 P. R. China
| | - Jia-Yang Li
- Wenzhou Key Laboratory of Sodium-Ion Batteries, Wenzhou University Technology Innovation Institute for Carbon Neutralization Wenzhou 325035 P. R. China
| | - Yi-Feng Liu
- Wenzhou Key Laboratory of Sodium-Ion Batteries, Wenzhou University Technology Innovation Institute for Carbon Neutralization Wenzhou 325035 P. R. China
| | - Yan-Fang Zhu
- Institute for Carbon Neutralization, College of Chemistry and Materials Engineering, Wenzhou University Wenzhou 325035 P. R. China
- Wenzhou Key Laboratory of Sodium-Ion Batteries, Wenzhou University Technology Innovation Institute for Carbon Neutralization Wenzhou 325035 P. R. China
| | - Hong-Wei Li
- Wenzhou Key Laboratory of Sodium-Ion Batteries, Wenzhou University Technology Innovation Institute for Carbon Neutralization Wenzhou 325035 P. R. China
| | - Xin-Bei Jia
- Institute for Carbon Neutralization, College of Chemistry and Materials Engineering, Wenzhou University Wenzhou 325035 P. R. China
- Wenzhou Key Laboratory of Sodium-Ion Batteries, Wenzhou University Technology Innovation Institute for Carbon Neutralization Wenzhou 325035 P. R. China
| | - Zhuang-Chun Jian
- Institute for Carbon Neutralization, College of Chemistry and Materials Engineering, Wenzhou University Wenzhou 325035 P. R. China
- Wenzhou Key Laboratory of Sodium-Ion Batteries, Wenzhou University Technology Innovation Institute for Carbon Neutralization Wenzhou 325035 P. R. China
| | - Han-Xiao Liu
- Institute for Carbon Neutralization, College of Chemistry and Materials Engineering, Wenzhou University Wenzhou 325035 P. R. China
- Wenzhou Key Laboratory of Sodium-Ion Batteries, Wenzhou University Technology Innovation Institute for Carbon Neutralization Wenzhou 325035 P. R. China
| | - Ling-Yi Kong
- Institute for Carbon Neutralization, College of Chemistry and Materials Engineering, Wenzhou University Wenzhou 325035 P. R. China
- Wenzhou Key Laboratory of Sodium-Ion Batteries, Wenzhou University Technology Innovation Institute for Carbon Neutralization Wenzhou 325035 P. R. China
| | - Zhi-Qi Li
- Institute for Carbon Neutralization, College of Chemistry and Materials Engineering, Wenzhou University Wenzhou 325035 P. R. China
- Wenzhou Key Laboratory of Sodium-Ion Batteries, Wenzhou University Technology Innovation Institute for Carbon Neutralization Wenzhou 325035 P. R. China
| | - Hang-Hang Dong
- Wenzhou Key Laboratory of Sodium-Ion Batteries, Wenzhou University Technology Innovation Institute for Carbon Neutralization Wenzhou 325035 P. R. China
| | - Meng-Ke Zhang
- College of Chemical Engineering, Sichuan University Chengdu 610065 P. R. China
| | - Lang Qiu
- College of Chemical Engineering, Sichuan University Chengdu 610065 P. R. China
| | - Jing-Qiang Wang
- Wenzhou Key Laboratory of Sodium-Ion Batteries, Wenzhou University Technology Innovation Institute for Carbon Neutralization Wenzhou 325035 P. R. China
| | - Shuang-Qiang Chen
- Institute for Carbon Neutralization, College of Chemistry and Materials Engineering, Wenzhou University Wenzhou 325035 P. R. China
- Wenzhou Key Laboratory of Sodium-Ion Batteries, Wenzhou University Technology Innovation Institute for Carbon Neutralization Wenzhou 325035 P. R. China
| | - Xiong-Wei Wu
- School of Chemistry and Materials Science, Hunan Agricultural University Changsha 410128 P. R. China
| | - Xiao-Dong Guo
- College of Chemical Engineering, Sichuan University Chengdu 610065 P. R. China
| | - Yao Xiao
- Institute for Carbon Neutralization, College of Chemistry and Materials Engineering, Wenzhou University Wenzhou 325035 P. R. China
- Wenzhou Key Laboratory of Sodium-Ion Batteries, Wenzhou University Technology Innovation Institute for Carbon Neutralization Wenzhou 325035 P. R. China
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Zeng A, Jiao J, Zhang H, Zhao E, He T, Xu Z, Xiao X. Slow-Released Cationic Redox Activity Promoted Stable Anionic Redox and Suppressed Jahn-Teller Distortion in Layered Sodium Manganese Oxides. ACS APPLIED MATERIALS & INTERFACES 2024; 16:7119-7129. [PMID: 38295308 DOI: 10.1021/acsami.3c16320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2024]
Abstract
Manganese-based layered oxides are considered promising cathodes for sodium ion batteries due to their high capacity and low-cost manganese and sodium resources. Triggering the anionic redox reaction (ARR) can exceed the capacity limitation determined by conventional cationic redox. However, the unstable ARR charge compensation and Jahn-Teller distortion of Mn3+ ions readily result in structural degradation and rapid capacity fade. Here, we report a P2-type Na0.8Li0.2Mn0.7Cu0.1O2 cathode that shows a capacity retention of 84.5% at 200 mA/g after 200 cycles. Combining in situ X-ray diffraction and multi other ex situ characterizations, we reveal that the enhanced cycling stability is ascribed to a slow release of cationic redox activity which can well suppress the Jahn-Teller distortion and favor the ARR reversibility. Furthermore, density-functional theory calculations demonstrate that the inhibited interlayer migration and reduced band gap facilitate the stability and kinetic behavior of ARR. These findings provide a perspective for designing high-energy-density cathode materials with ARR activity.
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Affiliation(s)
- Ao Zeng
- College of Materials Science and Optoelectronic Technology, Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jianyue Jiao
- College of Materials Science and Optoelectronic Technology, Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hong Zhang
- College of Materials Science and Optoelectronic Technology, Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Enyue Zhao
- Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, China
| | - Tao He
- Innovation Academy for Microsatellites of Chinese Academy of Sciences, Shanghai201304, China
| | - Zhenbang Xu
- Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Science, Changchun130033, Jilin, China
| | - Xiaoling Xiao
- College of Materials Science and Optoelectronic Technology, Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
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Lavela P, Leyva J, Tirado JL. Sustainable, low Ni-containing Mg-doped layered oxides as cathodes for sodium-ion batteries. Dalton Trans 2023; 52:17289-17298. [PMID: 37937454 DOI: 10.1039/d3dt02988c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2023]
Abstract
The supply of battery-grade nickel to produce positive electrodes of sodium-ion batteries may soon become insufficient. For this reason, it is crucial to find new electrode materials that minimize its use or even fully remove this element from synthesis. We have prepared a Na0.67Mg0.05FexNiyMnzO2 (0 ≤ x ≤ 0.2; y = 0.05, 0.15; 0.6 ≤ z ≤ 0.9) series with low Ni and Fe contents by a single and easily scalable sol-gel method. This procedure yields high-purity and crystalline samples as evidenced by structural, morphological, and spectroscopic studies, including X-ray diffraction, electron microscopy, and X-ray photoelectron spectroscopy. The electrochemical tests showed an exceptional performance for the F0N05 sample with the lowest (Ni + Fe) contents, at 5 C (ca. 100 mA h g-1), and good capacity retention after 100 cycles. This excellent behaviour was also evidenced when cycling at -15 °C. These results were confirmed by electrochemical techniques, such as cyclic voltammetry and impedance spectroscopy, that evidenced a fast exchange of sodium ions due to a significant capacitive contribution and high apparent diffusion coefficients. Post-mortem analysis of the F0N05 electrodes by XRD showed the reversible insertion and the absence of detrimental P2-O2 and P2-P2' transitions, while XPS spectra demonstrated the reversible redox activity of both transition metals and oxygen.
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Affiliation(s)
- Pedro Lavela
- Departamento de Química Inorgánica e Ingeniería Química, Instituto Químico para la Energía y el Medioambiente (IQUEMA), Universidad de Córdoba, Edificio Marie Curie, Campus de Rabanales, 14071 Córdoba, Spain.
| | - Julia Leyva
- Departamento de Química Inorgánica e Ingeniería Química, Instituto Químico para la Energía y el Medioambiente (IQUEMA), Universidad de Córdoba, Edificio Marie Curie, Campus de Rabanales, 14071 Córdoba, Spain.
| | - José Luis Tirado
- Departamento de Química Inorgánica e Ingeniería Química, Instituto Químico para la Energía y el Medioambiente (IQUEMA), Universidad de Córdoba, Edificio Marie Curie, Campus de Rabanales, 14071 Córdoba, Spain.
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9
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Zhang L, Huang J, Song M, Lu C, Wu W, Wu X. Single-Crystal Growth of P2-Type Layered Oxides with Increased Exposure of {010} Planes for High-Performance Sodium-Ion Batteries. ACS APPLIED MATERIALS & INTERFACES 2023; 15:47037-47048. [PMID: 37769162 DOI: 10.1021/acsami.3c10312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/30/2023]
Abstract
An increase in the size of single-crystal particles can effectively reduce the interfacial side reactions of layered oxides for sodium-ion batteries at high voltages but may result in sluggish Na+ transport. Herein, single-crystal Na0.66Ni0.26Zn0.07Mn0.67O2 with increased proportions of {010} planes is synthesized by adding low-cost NaCl as the molten salt. With the assistance of a NaCl molten salt, the median diameter (D50) of single-crystal Na0.66Ni0.26Zn0.07Mn0.67O2 increases to 10.46 μm relative to that of the comparison sample without NaCl (6.57 μm). Electrolyte decomposition on the surface of single-crystal Na0.66Ni0.26Zn0.07Mn0.67O2 is considerably suppressed, owing to a decrease in the specific surface area. Moreover, the increased exposure of {010} planes is favorable for improving the Na+ transport kinetics of single-crystal particles. Therefore, at 100 mA g-1, single-crystal Na0.66Ni0.26Zn0.07Mn0.67O2 exhibits a high-capacity retention of 96.6% after 100 cycles, which is considerably greater than that of the comparison sample (86.8%). Moreover, the rate performance of single-crystal Na0.66Ni0.26Zn0.07Mn0.67O2 (average discharge capacity of 81.2 mAh g-1) is superior to that of the comparison sample (average discharge capacity of 61.2 mAh g-1) at 2000 mA g-1. This work provides a new approach for promoting the single-crystal growth of layered oxides for highly stable interfaces at high voltages without compromising Na+ transport kinetics.
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Affiliation(s)
- Le Zhang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Jieyou Huang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Miaoyan Song
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Chen Lu
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Wenwei Wu
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
- Guangxi Key Laboratory for High-value Utilization of Manganese Resources, Guangxi Normal University for Nationalities, Chongzuo 532200, China
| | - Xuehang Wu
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
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