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Yao Y, Ma Y, Chen C, Zhu K, Wang G, Cao D, Yan J. Enhanced sodium-storage performances of crumpled MXene nanosheets via alkali treatment-induced active ammonium ions. J Colloid Interface Sci 2024; 670:647-657. [PMID: 38781655 DOI: 10.1016/j.jcis.2024.05.124] [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: 02/29/2024] [Revised: 04/27/2024] [Accepted: 05/16/2024] [Indexed: 05/25/2024]
Abstract
Ti3C2Tx MXene demonstrates excellent potential as an anode material for sodium-ion capacitors. However, the narrow interlayer spacing and self-stacking phenomenon limit its applicability. In this study, we demonstrate an easy two-step method involving freezing and crumpling of MXene nanosheets to improve their Na-ion storage via the addition of ammonium ions (referred to as FCM nanosheets). Flat MXene particles aggregate and undergo folding in an alkaline solution. Ammonium ions can penetrate the gaps between MXene nanosheets, expanding interlayer spaces and inducing the formation of folds. Compared to MXene nanosheets, FCM nanosheets exhibit improved ion transfer kinetics and additional high capacity owing to the intercalated ammonium ions. The manufactured FCM anode exhibits remarkable electrochemical properties, including a high specific capacity of 313 mAhg-1 and stability over 15,000 cycles.
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Affiliation(s)
- Yiwei Yao
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Yuan Ma
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China; CATARC New Energy Vehicle Test Center (Tianjin) Co., Ltd. Tianjin 300300, China
| | - Chi Chen
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, and Xiamen Institute of Rare Earth Materials, Haixi Institute, Chinese Academy of Sciences, Xiamen 361021, China
| | - Kai Zhu
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Guiling Wang
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Dianxue Cao
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Jun Yan
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China; State Key Laboratory of Organic-Inorganic Composites, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
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2
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Zhang H, You Y, Sha D, Shui T, Moloto N, Liu J, Kure-Chu SZ, Hihara T, Zhang W, Sun Z. Planar Deposition via In Situ Conversion Engineering for Dendrite-Free Zinc Batteries. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2409763. [PMID: 39212642 DOI: 10.1002/adma.202409763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2024] [Revised: 08/12/2024] [Indexed: 09/04/2024]
Abstract
Owing to the considerable capacity, high safety, and abundant zinc resources, zinc-ion batteries (ZIBs) have been garnering much attention. Nonetheless, the unsatisfactory cyclic lifespan and poor reversibility originate from side reactions and dendrite obstacles to their practical applications. In addition to inhibiting the corrosion of aqueous electrolytes, regulating planar deposition is a key strategy to enhance their long-term stability. Herein, an in situ conversion strategy is reported to construct a protective "dual-layer" structure (VZSe/V@Zn) on zinc metal, consisting of the VSe2-ZnSe outer layer with low lattice mismatch to Zn (002) plane, and corrosion-resistant nanometallic V inner layer. Such design integrates superior interfacial ionic/electronic transfer, corrosion resistance, and unique planar deposition regulation capability. The as-prepared VZSe/V@Zn demonstrates remarkable durability of 238 h at 50 mA cm-2 with a high depth of discharge (68.3% DOD) in the Zn||Zn symmetric cell. Even in the anode-free system, the as-prepared protective layer can extend the cycle life up to 2000 cycles, with an outstanding capacity retention of 93.1% and ultra-high average coulombic efficiency of 99.998%. This work delineates an effective strategy for fabricating lattice-matching protective layers, with profound implications for elucidating zinc deposition mechanisms and paving the way for the development of high-performance zinc batteries.
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Affiliation(s)
- Hanning Zhang
- School of Materials Science and Engineering, Southeast University, Nanjing, 211189, China
| | - Yurong You
- School of Materials Science and Engineering, Southeast University, Nanjing, 211189, China
| | - Dawei Sha
- School of Materials Science and Engineering, Yangzhou University, Yangzhou, 225009, China
| | - Tao Shui
- School of Materials Science and Engineering, Southeast University, Nanjing, 211189, China
| | - Nosipho Moloto
- Molecular Science Institute, School of Chemistry, University of the Witwatersrand, Private Bag 3, Wits, 2050, South Africa
| | - Jiacheng Liu
- Department of Materials Function and Design, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya, Aichi, 4668555, Japan
| | - Song-Zhu Kure-Chu
- Department of Materials Function and Design, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya, Aichi, 4668555, Japan
| | - Takehiko Hihara
- Department of Materials Function and Design, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya, Aichi, 4668555, Japan
| | - Wei Zhang
- School of Materials Science and Engineering, Southeast University, Nanjing, 211189, China
| | - ZhengMing Sun
- School of Materials Science and Engineering, Southeast University, Nanjing, 211189, China
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3
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Zhu Y, Xie J, Xiao J, He H, Li Y, Pan B, Chen C. Calcium-Pillar Boosting Smooth Phase Transition in Potassium Vanadate Nanobelts toward Superior Cycling Performance in Potassium-Ion Batteries. ACS APPLIED MATERIALS & INTERFACES 2024; 16:33485-33493. [PMID: 38913604 DOI: 10.1021/acsami.4c04712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/26/2024]
Abstract
The depletion of lithium resources has prompted exploration into alternative rechargeable energy storage systems, and potassium-ion batteries (PIBs) have emerged as promising candidates. As an active cathode material for PIBs, potassium vanadate (KxV2O5) usually suffers from structural damage during electrochemical K-ion insertion/extraction and hence leading to unsatisfactory cycling performance. Here, we introduce Ca2+ ions as pillars into the potassium vanadate to enhance its structural stability and smooth its phase transition behavior. The additional Ca2+ not only stabilizes the layered structure but also promotes the rearrangement of interlayer ions and leads to a smooth solid-solution phase transition. The optimal composition K0.36Ca0.05V2O5 (KCVO) exhibits outstanding cyclic stability, delivering a capacity of ∼90 mA h g-1 at 20 mA g-1 with negligible capacity decay even after 700 cycles at 500 mA g-1. Theoretical calculations indicate lower energy barriers for K+ diffusion, promoting rapid reaction kinetics. The excellent performances and detailed investigations offer insights into the structural regulation of layered vanadium cathodes.
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Affiliation(s)
- Yiran Zhu
- Key Laboratory of Precision and Intelligent Chemistry, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Jingjing Xie
- Key Laboratory of Precision and Intelligent Chemistry, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Jingchao Xiao
- Key Laboratory of Precision and Intelligent Chemistry, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Haiyan He
- Key Laboratory of Precision and Intelligent Chemistry, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Yixuan Li
- Key Laboratory of Precision and Intelligent Chemistry, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Bicai Pan
- Hefei National Laboratory for Physical Sciences at the Micro Scale, Key Laboratory of Strongly-Coupled Quantum Matter Physics, Department of Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Chunhua Chen
- Key Laboratory of Precision and Intelligent Chemistry, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China
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Ma Y, Cao W, Liu Y, Li Q, Cai S, Bao SJ, Xu M. Amorphous Vanadium Oxides with Dual ion Storage Mechanism for High-Performance Aqueous Zinc ion Batteries. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2306790. [PMID: 38126896 DOI: 10.1002/smll.202306790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 11/21/2023] [Indexed: 12/23/2023]
Abstract
Owing to the extremely limited structural deformation caused by the introduction of guest ions that their rigid structure can sustain, crystalline materials typically fail owing to structural collapse when utilized as electrode materials. Amorphous materials, conversely, are more resistant to volume expansion during dynamic ion transport and can introduce a lot of defects as active sites. Here, The amorphous polyaniline-coated/intercalated V2O5·nH2O (PVOH) nanowires are prepared by in situ chemical oxidation combined with self-assembly strategy, which exhibited impressive electrochemical properties because of its short-range ordered crystal structure, oxygen vacancy/defect-rich, improved electronic channels, and ionic channels. Through in situ techniques, the energy storage mechanism of its Zn2+/H+ co-storage is investigated and elucidated. Additionally, this work provides new insights and perspectives for the investigation and application of amorphous cathodes for aqueous zinc ion batteries.
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Affiliation(s)
- Yandong Ma
- School of Materials and Energy, Southwest University, Chongqing, 400715, P. R. China
- Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energies, Chongqing, 400715, P. R. China
| | - Weinan Cao
- School of Materials and Energy, Southwest University, Chongqing, 400715, P. R. China
- Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energies, Chongqing, 400715, P. R. China
| | - Yonghang Liu
- School of Materials and Energy, Southwest University, Chongqing, 400715, P. R. China
- Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energies, Chongqing, 400715, P. R. China
| | - Qiulin Li
- School of Materials and Energy, Southwest University, Chongqing, 400715, P. R. China
- Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energies, Chongqing, 400715, P. R. China
| | - Shinan Cai
- School of Materials and Energy, Southwest University, Chongqing, 400715, P. R. China
- Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energies, Chongqing, 400715, P. R. China
| | - Shu-Juan Bao
- School of Materials and Energy, Southwest University, Chongqing, 400715, P. R. China
- Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energies, Chongqing, 400715, P. R. China
| | - Maowen Xu
- School of Materials and Energy, Southwest University, Chongqing, 400715, P. R. China
- Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energies, Chongqing, 400715, P. R. China
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5
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Qiu Y, Sun Z, Guo Z, Du B, Ding H, Wang P, Tian S, Qian L. Ion-Molecule Co-Confining Ammonium Vanadate Cathode for High-Performance Aqueous Zinc-Ion Batteries. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2311029. [PMID: 38152924 DOI: 10.1002/smll.202311029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Indexed: 12/29/2023]
Abstract
Vanadium-based cathode materials have attracted great attention in aqueous zinc-ion batteries (AZIBs). However, the inferior ion transport and cyclic stability due to the strong Coulomb interaction between Zn2+ and the lattice limit their further application. In this work, CO2 molecules are in situ embedded in the interlayer structure of NH4V4O10 by decomposing excess H2C2O4·2H2O in the main framework, obtaining an ion-molecule co-confining NH4V4O10 for AZIB cathode material. The introduced CO2 molecules expanded the interlayer spacing of NH4V4O10, broadened the diffusion channel of Zn2+, and stabilized the structure of NH4V4O10 as the interlayer pillars together withNH 4 + ${\mathrm{NH}}_4^ + $ , which effectively improved the Zn2+ diffusion kinetics and cycle stability of the electrode. In addition, the binding betweenNH 4 + ${\mathrm{NH}}_4^ + $ and the host framework is stabilized via hydrogen bonds with CO2 molecules. NVO-CO2-0.8 exhibited excellent specific capacity (451.1 mAh g-1 at 2 A g-1), cycle stability (214.0 mAh g-1 at 10 A g-1 after 1000 cycles) and rate performance. This work provides new ideas and approaches for optimizing vanadium-based materials with high-performance AZIBs.
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Affiliation(s)
- Yu Qiu
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), Shandong University, 17923 Jingshi Road, Jinan, 250061, China
| | - Zhihao Sun
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), Shandong University, 17923 Jingshi Road, Jinan, 250061, China
| | - Zihao Guo
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), Shandong University, 17923 Jingshi Road, Jinan, 250061, China
| | - Benli Du
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), Shandong University, 17923 Jingshi Road, Jinan, 250061, China
| | - Han Ding
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), Shandong University, 17923 Jingshi Road, Jinan, 250061, China
| | - Peng Wang
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), Shandong University, 17923 Jingshi Road, Jinan, 250061, China
| | - Shaoyao Tian
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), Shandong University, 17923 Jingshi Road, Jinan, 250061, China
| | - Lei Qian
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), Shandong University, 17923 Jingshi Road, Jinan, 250061, China
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Cheng H, Zhang Y, Cai X, Liu C, Wang Z, Ye H, Pan Y, Jia D, Lin H. Boosting Zinc Storage Performance of Li 3 VO 4 Cathode Material for Aqueous Zinc Ion Batteries via Carbon-Incorporation: A Study Combining Theory and Experiment. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2305762. [PMID: 37759422 DOI: 10.1002/smll.202305762] [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: 07/10/2023] [Revised: 09/06/2023] [Indexed: 09/29/2023]
Abstract
In the search for sustainable cathode materials for aqueous zinc ion batteries (AZIBs), vanadium (V)-based materials have garnered interest, primarily due to their abundance and multiple oxidation states. Among the contenders, Li3 VO4 (LiVO) stands out for its affordability, high specific capacity, and elevated ionic conductivity. However, its limited electrical conductivity results in significant resistance polarization, limiting its rate capability, especially under high currents. Through density functional theory (DFT) calculations, this study evaluates the electrochemical implications of carbon (C) incorporation within the LiVO matrix. The findings indicate that C integration significantly ameliorates the conductivity of LiVO. Moreover, C serves as a barrier, mitigating direct interactions between Zn2+ and LiVO, which in turn expedites Zn2+ diffusion. When considering various C materials for this role, glucose is emerged as the optimal candidate. The LiVO/C-glucose composite (LiVO/C-G) is observed to undergo dual phase transitions during charge-discharge cycles, resulting in an amorphous vanadium-oxygen (VO) derivative, paving the way for subsequent electrochemical reactions. Collectively, the insights pave a promising avenue for refining AZIB cathode design and performance.
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Affiliation(s)
- Huanhuan Cheng
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi, Xinjiang, 830017, P. R. China
| | - Yu Zhang
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi, Xinjiang, 830017, P. R. China
| | - Xuanxuan Cai
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi, Xinjiang, 830017, P. R. China
| | - Chenfan Liu
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi, Xinjiang, 830017, P. R. China
| | - Zhiwen Wang
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi, Xinjiang, 830017, P. R. China
| | - Hang Ye
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi, Xinjiang, 830017, P. R. China
| | - Yanliang Pan
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi, Xinjiang, 830017, P. R. China
| | - Dianzeng Jia
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi, Xinjiang, 830017, P. R. China
| | - He Lin
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi, Xinjiang, 830017, P. R. China
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7
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He J, Shi X, Liu Q, Wu H, Yu Y, Lu X, Yang Z. Promoting OH - Adsorption and Diffusion Enables Ultrahigh Capacity and Rate Capability of Nickel Sulfide Cathode for Aqueous Alkaline Zn-Based Batteries. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2306258. [PMID: 37806759 DOI: 10.1002/smll.202306258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 09/15/2023] [Indexed: 10/10/2023]
Abstract
Aqueous alkaline Zn-based batteries (AAZBs) possess great promise for large-scale applications thanks to their higher discharging plateau and unique reaction mechanism. However, the capacity and rate capability of Ni-based cathodes are still unsatisfactory due to their insufficient OH- adsorption and diffusion ability. Herein, heterostructured Ni3 S2 /Ni(OH)2 nanosheets with outstanding electrochemical performance are synthesized via a facile chemical etching strategy. The heterostructured Ni3 S2 /Ni(OH)2 nanosheet cathode shows significantly increased capacity and rate capability due to its boosted OH- adsorption and diffusion ability compared to Ni3 S2 . Consequently, the assembled Zn//Ni3 S2 /Ni(OH)2 cell can deliver an ultrahigh capacity of 2.26 mAh cm-2 , an excellent rate performance (0.91 mAh cm-2 at 100 mA cm-2 ) and a satisfying cycling stability (1.01 mAh cm-2 at 20 mA cm-2 after 500 cycles). Moreover, a prominent energy density of 3.86 mWh cm-2 is obtained, which exceeds the majority of recently reported AAZBs. This work is expected to provide a new modification direction for developing high-performance nickel sulfide cathode for AAZBs.
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Affiliation(s)
- Jinjun He
- School of Chemical Engineering and Technology, MOE of the Key Laboratory of Bioinorganic and Synthetic Chemistry, The Key Lab of Low-Carbon Chem and Energy Conservation of Guangdong Province, School of Chemistry, Sun Yat-Sen University, Zhuhai, 519082, P. R. China
| | - Xin Shi
- School of Chemical Engineering and Technology, MOE of the Key Laboratory of Bioinorganic and Synthetic Chemistry, The Key Lab of Low-Carbon Chem and Energy Conservation of Guangdong Province, School of Chemistry, Sun Yat-Sen University, Zhuhai, 519082, P. R. China
| | - Qiyu Liu
- School of Chemical Engineering and Technology, MOE of the Key Laboratory of Bioinorganic and Synthetic Chemistry, The Key Lab of Low-Carbon Chem and Energy Conservation of Guangdong Province, School of Chemistry, Sun Yat-Sen University, Zhuhai, 519082, P. R. China
| | - Haibo Wu
- Huizhou Research Institute of Sun Yat-Sen University, Huizhou, 516216, P. R. China
| | - Yanxia Yu
- School of Chemical Engineering and Technology, MOE of the Key Laboratory of Bioinorganic and Synthetic Chemistry, The Key Lab of Low-Carbon Chem and Energy Conservation of Guangdong Province, School of Chemistry, Sun Yat-Sen University, Zhuhai, 519082, P. R. China
| | - Xihong Lu
- School of Chemical Engineering and Technology, MOE of the Key Laboratory of Bioinorganic and Synthetic Chemistry, The Key Lab of Low-Carbon Chem and Energy Conservation of Guangdong Province, School of Chemistry, Sun Yat-Sen University, Zhuhai, 519082, P. R. China
| | - Zujin Yang
- School of Chemical Engineering and Technology, MOE of the Key Laboratory of Bioinorganic and Synthetic Chemistry, The Key Lab of Low-Carbon Chem and Energy Conservation of Guangdong Province, School of Chemistry, Sun Yat-Sen University, Zhuhai, 519082, P. R. China
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8
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Zhuang Y, Zong Q, Wu Y, Liu C, Zhang Q, Tao D, Zhang J, Wang J, Cao G. Tuning [VO 6 ] Octahedron of Ammonium Vanadates via F Incorporation for High-Performance Aqueous Zinc Ion Batteries. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2306561. [PMID: 37968810 DOI: 10.1002/smll.202306561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 10/17/2023] [Indexed: 11/17/2023]
Abstract
The electrochemical properties of vanadium-based materials as cathode materials for aqueous zinc ion batteries are still restricted by low conductivity, sluggish reaction kinetics, and poor structural stability. Herein, the [VO6 ] octahedron, as the basic unit of vanadium-oxide layer of ammonium vanadates (NH4 V4 O10 , denoted as NVO), is incorporated by F atoms to regulate the coordinated environment of vanadium. Density functional theory (DFT) calculations and experimental results show that both physicochemical and electrochemical properties of NVO are improved by F-doping. The enhanced electronic conductivity accelerates the electron transfer and the expanded interlayer spacing expedites the diffusion kinetics of zinc ions. As a result, the F-doped NVO (F-NVO) electrode shows a high discharge capacity (465 mAh g-1 at 0.1 A g-1 ), good rate capability (260 mAh g-1 at 5 A g-1 ), and long-term cycling stability (88% capacity retention over 2000 cycles at 4 A g-1 ). The reaction kinetics and energy storage mechanism of F-NVO are further validated by in situ and ex situ characterizations.
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Affiliation(s)
- Yanling Zhuang
- College of Materials and Chemistry, China Jiliang University, Hangzhou, Zhejiang, 310018, P. R. China
| | - Quan Zong
- College of Materials and Chemistry, China Jiliang University, Hangzhou, Zhejiang, 310018, P. R. China
- State Key Lab of Silicon Materials, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Yuanzhe Wu
- College of Materials and Chemistry, China Jiliang University, Hangzhou, Zhejiang, 310018, P. R. China
| | - Chaofeng Liu
- School of Materials Science and Engineering, Tongji University, Shanghai, 201804, P. R. China
| | - Qilong Zhang
- State Key Lab of Silicon Materials, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Daiwen Tao
- State Key Lab of Silicon Materials, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Jingji Zhang
- College of Materials and Chemistry, China Jiliang University, Hangzhou, Zhejiang, 310018, P. R. China
| | - Jiangying Wang
- College of Materials and Chemistry, China Jiliang University, Hangzhou, Zhejiang, 310018, P. R. China
| | - Guozhong Cao
- Department of Materials Science and Engineering, University of Washington, Seattle, WA, 98195, USA
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9
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Zhong Y, Xie X, Zeng Z, Lu B, Chen G, Zhou J. Triple-function Hydrated Eutectic Electrolyte for Enhanced Aqueous Zinc Batteries. Angew Chem Int Ed Engl 2023; 62:e202310577. [PMID: 37578644 DOI: 10.1002/anie.202310577] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 08/14/2023] [Accepted: 08/14/2023] [Indexed: 08/15/2023]
Abstract
Aqueous rechargeable zinc-ion batteries (ARZBs) are impeded by the mutual problems of unstable cathode, electrolyte parasitic reactions, and dendritic growth of zinc (Zn) anode. Herein, a triple-functional strategy by introducing the tetramethylene sulfone (TMS) to form a hydrated eutectic electrolyte is reported to ameliorate these issues. The activity of H2 O is inhibited by reconstructing hydrogen bonds due to the strong interaction between TMS and H2 O. Meanwhile, the preferentially adsorbed TMS on the Zn surface increases the thickness of double electric layer (EDL) structure, which provides a shielding buffer layer to suppress dendrite growth. Interestingly, TMS modulates the primary solvation shell of Zn2+ ultimately to achieve a novel solvent co-intercalation ((Zn-TMS)2+ ) mechanism, and the intercalated TMS works as a "pillar" that provides more zincophilic sites and stabilizes the structure of cathode (NH4 V4 O10 , (NVO)). Consequently, the Zn||NVO battery exhibits a remarkably high specific capacity of 515.6 mAh g-1 at a low current density of 0.2 A g-1 for over 40 days. This multi-functional electrolytes and solvent co-intercalation mechanism will significantly propel the practical development of aqueous batteries.
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Affiliation(s)
- Yunpeng Zhong
- School of Materials Science and Engineering, Hunan Provincial Key Laboratory of Electronic Packaging and Advanced Functional Materials, Central South University, Changsha, Hunan, 410083, P. R. China
| | - Xuesong Xie
- School of Materials Science and Engineering, Hunan Provincial Key Laboratory of Electronic Packaging and Advanced Functional Materials, Central South University, Changsha, Hunan, 410083, P. R. China
| | - Zhiyuan Zeng
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, P. R. China
| | - Bingan Lu
- School of Physics and Electronics, Hunan University, Changsha, Hunan, 410082, P. R. China
| | - Gen Chen
- School of Materials Science and Engineering, Hunan Provincial Key Laboratory of Electronic Packaging and Advanced Functional Materials, Central South University, Changsha, Hunan, 410083, P. R. China
| | - Jiang Zhou
- School of Materials Science and Engineering, Hunan Provincial Key Laboratory of Electronic Packaging and Advanced Functional Materials, Central South University, Changsha, Hunan, 410083, P. R. China
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