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Wang D, Zhu C, Liu Y, Hu C, Yang H, Li Z, Chen T, Zhong B, Wu Z, Guo X. A Feasible Dual Modification Strategy of Internal Anion Redox Chemistry and Surface Engineering on P2 Layer-Structured Cathodes in Sodium-Ion Batteries. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 38710507 DOI: 10.1021/acsami.3c19489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
Boosting the anion redox reaction opens up a possibility of further capacity enhancement on transition-metal-ion redox-only layer-structured cathodes for sodium-ion batteries. To mitigate the deteriorating impact on the internal and surface structure of the cathode caused by the inevitable increase in the operation voltage, probing a solution to promote the bulk-phase crystal structure stability and surface chemistry environment to further facilitate the electrochemical performance enhancement is a key issue. A dual modification strategy of establishing an anion redox hybrid activation trigger agent inside the crystal structure in combination with surface oxide coating is successfully developed. P2-type layer structure cathode materials with Zn/Li (Na-O-Zn@Na-O-Li) anion redox hybrid triggers and a ZnO coating layer possess superior capacity and cycle performance, along with outstanding structural stability, decreased Mn-ion dissolution effect, and less crystal particle cracking during the cycling process. This study represents a facile modification solution to perform structure optimization and property enhancement toward high-performance layered structure cathode materials with anion redox features in sodium-ion batteries.
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Affiliation(s)
- Dong Wang
- College of Materials Science and Engineering, Chongqing University, Chongqing 400030, China
| | - Chaoqiong Zhu
- College of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Yihua Liu
- College of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - ChangYan Hu
- College of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Huan Yang
- College of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Zhuangzhi Li
- College of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Ting Chen
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Benhe Zhong
- College of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Zhenguo Wu
- College of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Xiaodong Guo
- College of Chemical Engineering, Sichuan University, Chengdu 610065, China
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China
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Pérez-Vicente C, Ariza R, Zuo W, Yang Y, Ortiz GF. The Magnesium Insertion Effects into P2-Type Na 2/3 Ni 1/3 Mn 2/3 O 2. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2305690. [PMID: 37840406 DOI: 10.1002/smll.202305690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Indexed: 10/17/2023]
Abstract
A Mg-cell with P2-Na2/3 Ni1/3 Mn2/3 O2 layered oxide cathode provides novel reaction mechanism not observed in Na-cells. The sodium/vacancy ordering and Jahn-Teller effects are suppressed with the insertion of magnesium ion. The Mg-cell exhibits different features when operating between 4.5 and 0.15 V and 3.9 and 0.15 V versus Mg2+ /Mg. To analyze the structural and chemical changes during Mg insertion, the cathode is first charged to obtain the Na1/3 Ni1/3 Mn2/3 O2 compound, which is formally accompanied by an oxidation from Ni2+ to Ni3+ . As structure models Mg1/6 Na1/3 Ni1/3 Mn2/3 O2 and Mg1/12 Na1/2 Ni1/3 Mn2/3 O2 are utilized with a large2 3 a $2\sqrt 3 a$ ×2 3 a $2\sqrt 3 a$ supercell. On discharge, the Mg-cell exhibits a multistep profile which reaches ≈100 mA h g-1 with the valence change from Ni3+ to Ni2+ . Such profile is quite different from its sodium counterpart (230 mA h g-1 ) which exhibits the sodium/vacancy ordering and deleterious presence of Mn3+ . Depending on how the two interlayer spacings are filled by Na and Mg the "staged," "intermediated," and "average" models are analyzed for Mgy Na8 Ni8 Mn16 O48 supercell. This fact suggests differences in the cell performance when Mg is used as counter electrode providing some tips to improve the structure engineering on cathode materials.
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Affiliation(s)
- Carlos Pérez-Vicente
- Department of Inorganic Chemistry and Chemical Engineering, University Research Institute for Energy and Environment (IQUEMA), University of Córdoba, Campus of Rabanales, Marie Curie Building, Córdoba, 14071, Spain
| | - Rafaela Ariza
- Department of Inorganic Chemistry and Chemical Engineering, University Research Institute for Energy and Environment (IQUEMA), University of Córdoba, Campus of Rabanales, Marie Curie Building, Córdoba, 14071, Spain
| | - Wenhua Zuo
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Yong Yang
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Gregorio F Ortiz
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, Institute of Luminescent Materials and Information Displays, College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, China
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Wang Z, Zhang S, Fu X, Huang R, Huang L, Zhang J, Yang W, Fu F, Sun S. High-Entropy Mn/Fe-Based Layered Cathode with Suppressed P2-P'2 Transition and Low-Strain for Fast and Stable Sodium Ion Storage. ACS APPLIED MATERIALS & INTERFACES 2024; 16:2378-2388. [PMID: 38174712 DOI: 10.1021/acsami.3c16333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
Mn/Fe-based layered oxides are deemed to be a highly suitable cathode for sodium-ion batteries (SIBs) due to their high capacity and abundant Mn/Fe resources, but they still suffer from a complicated phase transition and large volume variation. To conquer these problems, high-entropy Mn/Fe-based layered oxide P2-Na0.67Mn0.5Fe0.334Cu0.045Mg0.014Ti0.014Al0.014Zr0.014Sn0.014O2 (Mn-Fe-HEO) is rationally designed and fabricated. When used as a cathode for SIB, high-entropy Mn-Fe-HEO exhibits much higher reversible capacity and better rate capability than low-entropy Na0.67Mn0.5Fe0.334Cu0.164O2 (Mn-Fe-LEO) within a wide voltage range of 1.5-4.3 V. Ex situ X-ray diffraction combined with diffusion kinetics tests and microstructural characterizations demonstrate that high-entropy enhanced structural stability effectively prevents the Jahn-Teller distortion of Mn3+, stabilizes the Na+ diffusion channels, and enables the smooth transfer of more working Na+. These lead to a stable and fast redox electrochemistry in high-entropy Mn-Fe-HEO. This work deepens the understanding of the relationship between high-entropy structure and performance and provides important guidance for the rational design of future high-entropy layered cathodes.
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Affiliation(s)
- Ziqing Wang
- College of Materials Science and Engineering, Huaqiao University, Xiamen 361021, People's Republic of China
| | - Shengfeng Zhang
- College of Materials Science and Engineering, Huaqiao University, Xiamen 361021, People's Republic of China
| | - Xiaoguang Fu
- College of Materials Science and Engineering, Huaqiao University, Xiamen 361021, People's Republic of China
| | - Rui Huang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Ling Huang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Junyu Zhang
- College of Materials Science and Engineering, Huaqiao University, Xiamen 361021, People's Republic of China
| | - Weihua Yang
- College of Materials Science and Engineering, Huaqiao University, Xiamen 361021, People's Republic of China
| | - Fang Fu
- College of Materials Science and Engineering, Huaqiao University, Xiamen 361021, People's Republic of China
| | - Shigang Sun
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
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Li ZY, Ma X, Sun K, Ruan S, Tian G, Yang W, Yang J, Chen D. Enabling an Excellent Ordering-Enhanced Electrochemistry and a Highly Reversible Whole-Voltage-Range Oxygen Anionic Chemistry for Sodium-Ion Batteries. ACS APPLIED MATERIALS & INTERFACES 2023; 15:17801-17813. [PMID: 36988484 DOI: 10.1021/acsami.2c22670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Though considerable Mg-doped layered cathodes have been exploited, some new differences relative to previous reports can be concluded by doping a heavy dose of Mg via two rational strategies. Unlike the common unit cell of the P63/mmc group by X-ray diffraction, neutron diffraction reveals a large supercell of the P63 group and enhanced ordering for Na11/18Mg1/18[Ni1/4Mg1/9Mn11/18]O2 with Mg occupying both the Na and Mn sites. Compared with only one obvious voltage plateau of Na0.5[Ni0.25Mn0.75]O2 (NNM), Na11/18Mg1/18[Ni1/4Mg1/9Mn11/18]O2 (NMNMM) shows more severe voltage plateaus but with excellent electrochemical performance. Na0.5[Mg0.25Mn0.75]O2 (NMM) with Mg only occupying the Ni site displays a highly reversible whole-voltage-range oxygen redox chemistry and smooth voltage curves without any voltage hysteresis. Cationic Ni2+/Ni4+ couples are responsible for the charge compensations of NNM and NMNMM, while only the oxygen anionic reaction accounts for the capacity of NMM between 2.5 and 4.3 V. Interestingly, the Mn3+/Mn4+ pair contributes all capacity for all cathodes between 1.5 and 2.5 V. All cathodes undergo a double-phase mechanism: an irreversible P2-O2 phase transition for NNM, an enhanced reversible P2-O2 phase transition for NMNMM, and a highly reversible P2-OP4 phase transition for NMM. In addition, the designed cathodes display excellent rate capability and long-term cycling stability but with a large difference in the various voltage ranges of 2.5-4.3 and 1.5-2.5 V, respectively. This work provides a good understanding of ion doping and some new insights into exploiting high-performance materials.
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Affiliation(s)
- Zheng-Yao Li
- Neutron Scattering Laboratory, Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, People's Republic of China
| | - Xiaobai Ma
- Neutron Scattering Laboratory, Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, People's Republic of China
| | - Kai Sun
- Neutron Scattering Laboratory, Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, People's Republic of China
| | - Shihao Ruan
- Neutron Scattering Laboratory, Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, People's Republic of China
| | - Gengfang Tian
- Neutron Scattering Laboratory, Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, People's Republic of China
| | - Wenyun Yang
- School of Physics, Peking University, Beijing 100871, People's Republic of China
| | - Jinbo Yang
- School of Physics, Peking University, Beijing 100871, People's Republic of China
| | - Dongfeng Chen
- Neutron Scattering Laboratory, Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, People's Republic of China
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Zhang L, Guan C, Zheng J, Li H, Li S, Li S, Lai Y, Zhang Z. Rational design of intergrowth P2/O3 biphasic layered structure with reversible anionic redox chemistry and structural evolution for Na-ions batteries. Sci Bull (Beijing) 2023; 68:180-191. [PMID: 36658032 DOI: 10.1016/j.scib.2023.01.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 01/04/2023] [Accepted: 01/05/2023] [Indexed: 01/11/2023]
Abstract
Layered oxides have attracted unprecedented attention for their outstanding performance in sodium-ion battery cathodes. Among them, the two typical candidates P2 and O3 type materials generally demonstrate large diversities in specific capacity and cycling endurance with their advantages. Thus, composite materials that contain both P2 and O3 have been widely designed and constructed. Nevertheless, the anionic/cationic ions' behavior and structural evolution in such complex structures remain unclear. In this study, a deep analysis of an advanced Na0.732Ni0.273Mg0.096Mn0.63O2 material that contains 78.39 wt% P2 phase and 21.61 wt% O3 phase is performed based on two typical cathodes P2 Na0.67Ni0.33Mn0.67O2 and O3 NaNi0.5Mn0.5O2 that have the same elemental constitution but different crystal structures. Structural analysis and density functional theory (DFT) calculations suggest that the composite is preferred to form a symbiotic structure at the atomic level, and the complex lattice texture of the biphase structure can block unfavorable ion and oxygen migration in the electrode process. Consequently, the biphase structure has significantly improved the electrochemical performance and kept preferable anionic oxygen redox reversibility. Furthermore, the hetero-epitaxy-like structure of the intergrowth of P2 and O3 structures share multi-phase boundaries, where the inconsistency in electrochemical behavior between P2 and O3 phases leads to an interlocking effect to prevent severe structural collapse and relieves the lattice strain from Na+ de/intercalation. Hence, the symbiotic P2/O3 composite materials exhibited a preferable capacity and cyclability (∼130 mAh g-1 at 0.1 C, 73.1% capacity retention after 200 cycles at 1 C), as well as reversible structural evolution. These findings confirmed the advantages of using the bi/multi-phase cathode for high-energy Na-ion batteries.
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Affiliation(s)
- Liuyun Zhang
- School of Metallurgy and Environment, Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Hunan Provincial Key Laboratory of Nonferrous Value-Added Metallurgy, Central South University, Changsha 410083, China
| | - Chaohong Guan
- University of Michigan-Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Jingqiang Zheng
- School of Metallurgy and Environment, Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Hunan Provincial Key Laboratory of Nonferrous Value-Added Metallurgy, Central South University, Changsha 410083, China
| | - Huangxu Li
- Department of Chemistry, City University of Hong Kong, Hong Kong, China
| | - Shihao Li
- School of Metallurgy and Environment, Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Hunan Provincial Key Laboratory of Nonferrous Value-Added Metallurgy, Central South University, Changsha 410083, China
| | - Simin Li
- School of Metallurgy and Environment, Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Hunan Provincial Key Laboratory of Nonferrous Value-Added Metallurgy, Central South University, Changsha 410083, China
| | - Yanqing Lai
- School of Metallurgy and Environment, Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Hunan Provincial Key Laboratory of Nonferrous Value-Added Metallurgy, Central South University, Changsha 410083, China
| | - Zhian Zhang
- School of Metallurgy and Environment, Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Hunan Provincial Key Laboratory of Nonferrous Value-Added Metallurgy, Central South University, Changsha 410083, China.
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