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Li C, Li M, Liu G, Zhuo H, Li Q, Zhang H, Pang G, Yang X, Liao Z, Wang K, Wang D, Xiao B, Geng D. Achieving Superior Cyclability Pouch Cells with Oxygen Vacancy-Moderated P'2/P3 Hybrid Layered Sodium Cathode Materials. ACS APPLIED MATERIALS & INTERFACES 2024; 16:46216-46225. [PMID: 39169608 DOI: 10.1021/acsami.4c07264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/23/2024]
Abstract
Layered P2-type sodium manganese oxide has emerged as a promising cathode candidate for sodium-ion batteries due to its appealing cost-effectiveness and high discharge voltage. However, its practical capacity within the voltage range of 2.0-4.0 V (vs Na+/Na) is relatively low, and its rate capability is hampered by the adverse charge/vacancy ordering during charge/discharge. In this study, a layered P'2/P3 mixed-phase Na0.8-aMn0.675Ni0.225Li0.1O2-x cathode with high (003) crystal plane intensity was designed by introducing oxygen vacancies to P2-structured materials. Aided by these advantages, the hybrid cathode material demonstrates impressive structural and thermal stability and faster Na-ion diffusion kinetics compared to a regular P2 material. Half-cell shows an initial discharge capacity retention of 101 mA h/g at 12 mA/g and 92.25% retention after 500 cycles at 120 mA/g. In combination with a hard carbon anode, the 0.5 A h pouch cell achieved a prevailing capacity retention of 95.2% after 2600 cycles at 36 mA/g. This work opens new dimensions for layered cathode materials with the aim of achieving superior cyclabilities.
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Affiliation(s)
- Chenxiang Li
- GRINM (Guangdong) Research Institute for Advanced Materials and Technology, Foshan, Guangdong 528051, P. R. China
- University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Meng Li
- GRINM (Guangdong) Research Institute for Advanced Materials and Technology, Foshan, Guangdong 528051, P. R. China
- University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Guozhuang Liu
- Guangxi Zhuoneng New Energy Co., LTD, Nanning, Guangxi 530024, P. R. China
| | - Haoxiang Zhuo
- China Automotive Battery Research Institute Co., Ltd., Beijing 100088, P. R. China
| | - Qian Li
- National Institute of Clean and Low Carbon Energy, Changping, Beijing 102211, P. R. China
| | - Hui Zhang
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, P. R. China
- National Key Laboratory of Materials for Integrated Circuits, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, P. R. China
| | - Guoyao Pang
- GRINM (Guangdong) Research Institute for Advanced Materials and Technology, Foshan, Guangdong 528051, P. R. China
| | - Xuan Yang
- GRINM (Guangdong) Research Institute for Advanced Materials and Technology, Foshan, Guangdong 528051, P. R. China
- University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Zhou Liao
- GRINM (Guangdong) Research Institute for Advanced Materials and Technology, Foshan, Guangdong 528051, P. R. China
| | - Kuan Wang
- GRINM (Guangdong) Research Institute for Advanced Materials and Technology, Foshan, Guangdong 528051, P. R. China
| | - Dongniu Wang
- Suzhou Laboratory, Suzhou, Jiangsu 215123, P. R. China
| | - Biwei Xiao
- GRINM (Guangdong) Research Institute for Advanced Materials and Technology, Foshan, Guangdong 528051, P. R. China
- Guangxi Zhuoneng New Energy Co., LTD, Nanning, Guangxi 530024, P. R. China
| | - Dongsheng Geng
- University of Science and Technology Beijing, Beijing 100083, P. R. China
- Nanjing University of Information Science & Technology, Nanjing, Jiangsu 210044, P. R. China
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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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3
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Yan L, Chen W, Zhang H, Lu X, Zou L, Lu J, Pan H. Dual-Site Doping in Transition Metal Oxide Cathode Enables High-Voltage Stability of Na-Ion Batteries. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2401915. [PMID: 38805744 DOI: 10.1002/smll.202401915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 05/09/2024] [Indexed: 05/30/2024]
Abstract
Designing cathode materials that effectively enhancing structural stability under high voltage is paramount for rationally enhancing energy density and safety of Na-ion batteries. This study introduces a novel P2-Na0.73K0.03Ni0.23Li0.1Mn0.67O2 (KLi-NaNMO) cathode through dual-site synergistic doping of K and Li in Na and transition metal (TM) layers. Combining theoretical and experimental studies, this study discovers that Li doping significantly strengthens the orbital overlap of Ni (3d) and O (2p) near the Fermi level, thereby regulates the phase transition and charge compensation processes with synchronized Ni and O redox. The introduction of K further adjusts the ratio of Nae and Naf sites at Na layer with enhanced structural stability and extended lattice space distance, enabling the suppression of TM dissolution, achieving a single-phase transition reaction even at a high voltage of 4.4 V, and improving reaction kinetics. Consequently, KLi-NaNMO exhibits a high capacity (105 and 120 mAh g-1 in the voltage of 2-4.2 V and 2-4.4 V at 0.1 C, respectively) and outstanding cycling performance over 300 cycles under 4.2 and 4.4 V. This work provides a dual-site doping strategy to employ synchronized TM and O redox with improved capacity and high structural stability via electronic and crystal structure modulation.
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Affiliation(s)
- Lijue Yan
- Department of Chemistry, Zhejiang University, Hangzhou, 310027, China
| | - Weixin Chen
- School of Materials, Sun Yat-sen University, Shenzhen, 518107, China
| | - Hehe Zhang
- Clean Nano Energy Center, State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, China
| | - Xia Lu
- School of Materials, Sun Yat-sen University, Shenzhen, 518107, China
| | - Lianfeng Zou
- Clean Nano Energy Center, State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, China
| | - Jun Lu
- Institute of Bioengineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Huilin Pan
- Department of Chemistry, Zhejiang University, Hangzhou, 310027, China
- State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou, 310027, China
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4
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Wang J, Zhu YF, Su Y, Guo JX, Chen S, Liu HK, Dou SX, Chou SL, Xiao Y. Routes to high-performance layered oxide cathodes for sodium-ion batteries. Chem Soc Rev 2024; 53:4230-4301. [PMID: 38477330 DOI: 10.1039/d3cs00929g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2024]
Abstract
Sodium-ion batteries (SIBs) are experiencing a large-scale renaissance to supplement or replace expensive lithium-ion batteries (LIBs) and low energy density lead-acid batteries in electrical energy storage systems and other applications. In this case, layered oxide materials have become one of the most popular cathode candidates for SIBs because of their low cost and comparatively facile synthesis method. However, the intrinsic shortcomings of layered oxide cathodes, which severely limit their commercialization process, urgently need to be addressed. In this review, inherent challenges associated with layered oxide cathodes for SIBs, such as their irreversible multiphase transition, poor air stability, and low energy density, are systematically summarized and discussed, together with strategies to overcome these dilemmas through bulk phase modulation, surface/interface modification, functional structure manipulation, and cationic and anionic redox optimization. Emphasis is placed on investigating variations in the chemical composition and structural configuration of layered oxide cathodes and how they affect the electrochemical behavior of the cathodes to illustrate how these issues can be addressed. The summary of failure mechanisms and corresponding modification strategies of layered oxide cathodes presented herein provides a valuable reference for scientific and practical issues related to the development of SIBs.
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Affiliation(s)
- Jingqiang Wang
- Institute for Carbon Neutralization, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China.
- Wenzhou Key Laboratory of Sodium-Ion Batteries, Wenzhou University Technology Innovation Institute for Carbon Neutralization, Wenzhou 325035, China
| | - Yan-Fang Zhu
- Institute for Carbon Neutralization, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China.
- Wenzhou Key Laboratory of Sodium-Ion Batteries, Wenzhou University Technology Innovation Institute for Carbon Neutralization, Wenzhou 325035, China
| | - Yu Su
- Institute for Carbon Neutralization, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China.
- Wenzhou Key Laboratory of Sodium-Ion Batteries, Wenzhou University Technology Innovation Institute for Carbon Neutralization, Wenzhou 325035, China
| | - Jun-Xu Guo
- Institute for Carbon Neutralization, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China.
- Wenzhou Key Laboratory of Sodium-Ion Batteries, Wenzhou University Technology Innovation Institute for Carbon Neutralization, Wenzhou 325035, China
| | - Shuangqiang Chen
- Institute for Carbon Neutralization, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China.
- Wenzhou Key Laboratory of Sodium-Ion Batteries, Wenzhou University Technology Innovation Institute for Carbon Neutralization, Wenzhou 325035, China
| | - Hua-Kun Liu
- Institute of Energy Materials Science (IEMS), University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Shi-Xue Dou
- Institute of Energy Materials Science (IEMS), University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Shu-Lei Chou
- Institute for Carbon Neutralization, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China.
- Wenzhou Key Laboratory of Sodium-Ion Batteries, Wenzhou University Technology Innovation Institute for Carbon Neutralization, Wenzhou 325035, China
| | - Yao Xiao
- Institute for Carbon Neutralization, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China.
- Wenzhou Key Laboratory of Sodium-Ion Batteries, Wenzhou University Technology Innovation Institute for Carbon Neutralization, Wenzhou 325035, China
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5
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Xu X, Hu S, Pan Q, Huang Y, Zhang J, Chen Y, Wang H, Zheng F, Li Q. Enhancing Structure Stability by Mg/Cr Co-Doped for High-Voltage Sodium-Ion Batteries. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2307377. [PMID: 37940628 DOI: 10.1002/smll.202307377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 10/13/2023] [Indexed: 11/10/2023]
Abstract
P2-Na2/3Ni1/3Mn2/3O2 cathode materials have garnered significant attention due to their high cationic and anionic redox capacity under high voltage. However, the challenge of structural instability caused by lattice oxygen evolution and P2-O2 phase transition during deep charging persists. A breakthrough is achieved through a simple one-step synthesis of Cr, Mg co-doped P2-NaNMCM, resulting in a bi-functional improvement effect. P2-NaNMCM-0.01 exhibits an impressive capacity retention rate of 82% after 100 cycles at 1 C. In situ X-ray diffraction analysis shows that the "pillar effect" of Mg mitigates the weakening of the electrostatic shielding and effectively suppresses the phase transition of P2-O2 during the charging and discharging process. This successfully averts serious volume expansion linked to the phase transition, as well as enhances the Na+ migration. Simultaneously, in situ Raman spectroscopy and ex situ X-ray photoelectron spectroscopy tests demonstrate that the strong oxygen affinity of Cr forms a robust TM─O bond, effectively restraining lattice oxygen evolution during deep charging. This study pioneers a novel approach to designing and optimizing layered oxide cathode materials for sodium-ion batteries, promising high operating voltage and energy density.
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Affiliation(s)
- Xiaoqian Xu
- Guangxi Key Laboratory of Low Carbon Energy Materials, Guangxi New Energy Ship Battery Engineering Technology Research Center, Guangxi Scientific and Technological Achievements Transformation Pilot Research Base of Electrochemical Energy Materials and Devices, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
- School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Sijiang Hu
- Guangxi Key Laboratory of Low Carbon Energy Materials, Guangxi New Energy Ship Battery Engineering Technology Research Center, Guangxi Scientific and Technological Achievements Transformation Pilot Research Base of Electrochemical Energy Materials and Devices, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
| | - Qichang Pan
- Guangxi Key Laboratory of Low Carbon Energy Materials, Guangxi New Energy Ship Battery Engineering Technology Research Center, Guangxi Scientific and Technological Achievements Transformation Pilot Research Base of Electrochemical Energy Materials and Devices, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
| | - Youguo Huang
- Guangxi Key Laboratory of Low Carbon Energy Materials, Guangxi New Energy Ship Battery Engineering Technology Research Center, Guangxi Scientific and Technological Achievements Transformation Pilot Research Base of Electrochemical Energy Materials and Devices, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
| | - Jingchao Zhang
- School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Yanan Chen
- School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Hongqiang Wang
- Guangxi Key Laboratory of Low Carbon Energy Materials, Guangxi New Energy Ship Battery Engineering Technology Research Center, Guangxi Scientific and Technological Achievements Transformation Pilot Research Base of Electrochemical Energy Materials and Devices, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
| | - Fenghua Zheng
- Guangxi Key Laboratory of Low Carbon Energy Materials, Guangxi New Energy Ship Battery Engineering Technology Research Center, Guangxi Scientific and Technological Achievements Transformation Pilot Research Base of Electrochemical Energy Materials and Devices, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
| | - Qingyu Li
- Guangxi Key Laboratory of Low Carbon Energy Materials, Guangxi New Energy Ship Battery Engineering Technology Research Center, Guangxi Scientific and Technological Achievements Transformation Pilot Research Base of Electrochemical Energy Materials and Devices, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
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6
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Wang W, Yuan W, Zhao Z, Zhou P, Zhang P, Ding M, Bai J, Weng J. Sandwiched composite electrolyte with excellent interfacial contact for high-performance solid-state sodium-ion batteries. J Colloid Interface Sci 2023; 652:132-141. [PMID: 37591075 DOI: 10.1016/j.jcis.2023.08.052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 08/07/2023] [Accepted: 08/09/2023] [Indexed: 08/19/2023]
Abstract
Solid-state sodium-ion batteries have attracted significant attention due to their rich resources, high safety, and high energy density. However, the lower ionic conductivity and inferior interfacial contact between solid-state electrolytes (SSEs) and electrodes limit their practical applications. Herein, polyvinylideneuoride-co-hexauoropropylene (PVDF-HFP) membrane is selected and a novel sandwiched composite PVDF-HFP/Na2.5Zr1.95Ce0.05Si2.2P0.8O11.3F0.7/PVDF-HFP (G-NZC0.05SPF0.7-G) SSEs is well designed. The ionic conductivity of Na3Zr2Si2PO12 is enhanced by Ce4+/F- co-doping. The effects of Ce4+ and F- doping on the crystal structure, density, and ionic conductivity for Na3Zr2Si2PO12 are well investigated. The optimal NZC0.05SPF0.7 delivers a high ionic conductivity of 1.39 × 10-3 S cm-1 at 25 ℃. Moreover, the PVDF-HFP membrane can significantly enhance the interface compatibility between NZC0.05SPF0.7 and electrodes. The as-prepared G-NZC0.05SPF0.7-G exhibits a large ionic conductivity of 1.07 × 10-3 S cm-1 at 25 ℃, wide electrochemical stability window up to 4.5 V, high critical current density of 1.2 A cm-2, and stable Na plating/stripping over 600 h at 0.3 A cm-2. The solid-state Na0.67Mn0.47Ni0.33Ti0.2O2/G-NZC0.05SPF0.7-G/Na battery delivers a remarkable cycling stability and rate capability at 25 ℃, indicating that the as-prepared G-NZC0.05SPF0.7-G has a promising application for solid-state SIBs. This study demonstrates an effective strategy to develop advanced solid-state electrolytes for solid-state SIBs.
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Affiliation(s)
- Wenting Wang
- School of Materials Science and Engineering, Shandong University of Technology, Zibo 255000, PR China
| | - Wenyong Yuan
- School of Materials Science and Engineering, Shandong University of Technology, Zibo 255000, PR China
| | - Zhongjun Zhao
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 0255000, PR China
| | - Pengfei Zhou
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 0255000, PR China.
| | - Pengju Zhang
- School of Materials Science and Engineering, Shandong University of Technology, Zibo 255000, PR China
| | - Minghui Ding
- School of Materials Science and Engineering, Shandong University of Technology, Zibo 255000, PR China
| | - Jiahai Bai
- School of Materials Science and Engineering, Shandong University of Technology, Zibo 255000, PR China
| | - Junying Weng
- School of Materials Science and Engineering, Shandong University of Technology, Zibo 255000, PR China.
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7
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Hou P, Lin Z, Dong M, Sun Z, Gong M, Li F, Xu X. A thermodynamically stable O2-type cathode with reversible O2-P2 phase transition for advanced sodium-ion batteries. J Colloid Interface Sci 2023; 649:1006-1013. [PMID: 37392680 DOI: 10.1016/j.jcis.2023.06.162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 06/18/2023] [Accepted: 06/23/2023] [Indexed: 07/03/2023]
Abstract
Low-cost sodium-ion batteries (SIBs) have shown very promise in the applications of renewable energy and low-speed electric vehicles. The development of a new O2-type cathode in SIBs is very challenging in that this compound is only stable as an intermediate product of P2-type oxides during redox reactions. Here, we report a thermodynamically stable O2-type cathode obtained by Na/Li ion exchange from P2-type oxide in a binary molten salt system. It is demonstrated that the as-prepared O2-type cathode exhibits a highly reversible O2-P2 phase transition during Na+ de-intercalation. The unusual O2-P2 transition has a low volume change of ∼11%, much lower than that of 23.2% for P2-O2 transformation in the P2-type cathode. The lowered lattice volume change of this O2-type cathode gives rise to superior structural stability upon cycling. Therefore, the O2-type cathode possesses a reversible capacity of about 100 mAh/g with a good capacity retention of 87.3% even after 300 cycles at 1C, indicating outstanding long-term cycling stability. These achievements will promote the development new class of cathode materials with high capacity and structural stability for advanced SIBs.
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Affiliation(s)
- Peiyu Hou
- School of Physics and Technology, University of Jinan, Jinan 250022, China.
| | - Zezhou Lin
- Department of Applied Physics and Research Institute for Smart Energy, The Hong Kong Polytechnic University, Hong Kong, China
| | - Mohan Dong
- School of Physics and Technology, University of Jinan, Jinan 250022, China
| | - Zhenbo Sun
- School of Physics and Technology, University of Jinan, Jinan 250022, China
| | - Maosheng Gong
- School of Physics and Technology, University of Jinan, Jinan 250022, China
| | - Feng Li
- School of Physics and Technology, University of Jinan, Jinan 250022, China.
| | - Xijin Xu
- School of Physics and Technology, University of Jinan, Jinan 250022, China
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8
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Luo R, Zheng J, Zhou Z, Li J, Li Y, He Z. Study of Synergistic Effects of Cu and Fe on P2-Type Na 0.67MnO 2 for High Performance Na-Ion Batteries. ACS APPLIED MATERIALS & INTERFACES 2022; 14:47863-47871. [PMID: 36239389 DOI: 10.1021/acsami.2c12894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
P2-type Na0.67MnO2 with a stable structure and an open framework can provide numerous channels for fast Na+ de/intercalation, for which it is considered to be advantageous in application of the cathode material for Na-ion batteries. However, the complex phase transition occurring during cycling and the lattice distortion triggered by the Jahn-Teller effect severely restrict its development. Herein, the modified Na0.67MnO2 with Cu or Fe single-element doping as well as Cu and Fe double-element doping was synthesized by the sol-gel method, and the effects of doping on the crystal structure and electrochemical performances of Na0.67MnO2 were studied. It was demonstrated that the phase of the material did not change after the introduction of Cu and Fe elements, and the cycling stability and rate performance were greatly improved by Cu and Fe double-doping owing to their synergistic effect. The Na0.67Mn0.92Fe0.04Cu0.04O2 (NMFCO) cathode delivers discharge specific capacities of 110.5 mA h g-1 at 5 C and 91.8 mA h g-1 at 10 C and exhibits the high-capacity retention of 94.35% at 1 C and 90.68% at 5 C after 100 cycles. Overall, this study offers a guiding direction for accelerating the modification of P2-type Na0.67MnO2 as a cathode active material for high performance Na-ion batteries.
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Affiliation(s)
- Rui Luo
- School of Metallurgy and Environment, Central South University, Changsha, Hunan410083, China
- National Engineering Laboratory for High Efficiency Recovery of Refractory Nonferrous Metals, Central South University, Changsha410083, China
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha410083, China
| | - Junchao Zheng
- School of Metallurgy and Environment, Central South University, Changsha, Hunan410083, China
- National Engineering Laboratory for High Efficiency Recovery of Refractory Nonferrous Metals, Central South University, Changsha410083, China
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha410083, China
| | - Zhiwei Zhou
- School of Metallurgy and Environment, Central South University, Changsha, Hunan410083, China
- National Engineering Laboratory for High Efficiency Recovery of Refractory Nonferrous Metals, Central South University, Changsha410083, China
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha410083, China
| | - Jingyi Li
- School of Metallurgy and Environment, Central South University, Changsha, Hunan410083, China
- National Engineering Laboratory for High Efficiency Recovery of Refractory Nonferrous Metals, Central South University, Changsha410083, China
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha410083, China
| | - Yunjiao Li
- School of Metallurgy and Environment, Central South University, Changsha, Hunan410083, China
- National Engineering Laboratory for High Efficiency Recovery of Refractory Nonferrous Metals, Central South University, Changsha410083, China
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha410083, China
| | - Zhenjiang He
- School of Metallurgy and Environment, Central South University, Changsha, Hunan410083, China
- National Engineering Laboratory for High Efficiency Recovery of Refractory Nonferrous Metals, Central South University, Changsha410083, China
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha410083, China
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Tian Y, Liu Y, Li F, Sun Y, Wei X, Hou P. Realizing high energy-density lithium-ion batteries: high Ni-content or high cut-off voltage of single-crystal layered cathodes? J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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