1
|
Hu L, Liu C, Zhang F, Wang H, Wang B. Vacancy-Defect Ternary Topological Insulators Bi 2Se 2Te Encapsulated in Mesoporous Carbon Spheres for High Performance Sodium Ion Batteries and Hybrid Capacitors. Small 2024:e2311079. [PMID: 38733224 DOI: 10.1002/smll.202311079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 03/19/2024] [Indexed: 05/13/2024]
Abstract
Ternary topological insulators have attracted worldwide attention because of their broad application prospects in fields such as magnetism, optics, electronics, and quantum computing. However, their potential and electrochemical mechanisms in sodium ion batteries (SIBs) and hybrid capacitors (SIHCs) have not been fully studied. Herein, a composite material comprising vacancy-defects ternary topological insulator Bi2Se2Te encapsulated in mesoporous carbon spheres (Bi2Se2Te@C) is designed. Bi2Se2Te with ample vacancy-defects has a wide interlayer spacing to enable frequent insertion/extraction of Na+ and boost reaction kinetics within the electrode. Meanwhile, the Bi2Se2Te@C with optimized yolk-shell structure can buffer the volume variation without breaking the outer protective carbon shell, ensuring structural stability and integrity. As expected, the Bi2Se2Te@C electrode delivers high reversible capacity and excellent rate capability in half SIB cells. Various electrochemical analyses and theoretical calculations manifest that Bi2Se2Te@C anode confirms the synergistic effect of ternary chalcogenide systems and suitable void space yolk-shell structure. Consequently, the full cells of SIB and SIHC coupled with Bi2Se2Te@C anode exhibit good performance and high energy/power density, indicating its widespread practical applications. This design is expected to offer a reliable strategy for further exploring advanced topological insulators in Na+-based storage systems.
Collapse
Affiliation(s)
- Lijuan Hu
- College of Chemistry & Materials Science, Northwest University, Xi'an, 710127, P. R. China
| | - Changyu Liu
- College of Chemistry & Materials Science, Northwest University, Xi'an, 710127, P. R. China
| | - Fan Zhang
- College of Chemistry & Materials Science, Northwest University, Xi'an, 710127, P. R. China
| | - Hui Wang
- College of Chemistry & Materials Science, Northwest University, Xi'an, 710127, P. R. China
| | - Beibei Wang
- Institute of Photonics & Photon-Technology, Northwest University, Xi'an, 710069, P. R. China
| |
Collapse
|
2
|
Jiang Y, Li A, Pan Q, Wang S, Zhang M, Hu S, Li Y, Wang H, Li Q, Zheng F. Yolk-shell FeS@N-doped carbon nanosphere as superior anode materials for sodium-ion batteries. J Colloid Interface Sci 2024; 669:137-145. [PMID: 38713953 DOI: 10.1016/j.jcis.2024.04.215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 04/19/2024] [Accepted: 04/29/2024] [Indexed: 05/09/2024]
Abstract
Iron sulfides have shown great potential as anode materials for sodium-ion batteries (SIBs) because of their high sodium storage capacity and low cost. Nevertheless, iron sulfides generally exhibit unsatisfied electrochemical performance induced by sluggish electron/ion transfer and severe pulverization upon the sodiation/desodiation process. Herein, we constructed a yolk-shell FeS@NC nanosphere with an N-doped carbon shell and FeS particle core via a simple hydrothermal method, followed by in-situ polymerization and vulcanization. The FeS particles intimately coupled with N-doped carbon can accelerate the electron transfer, avoid severe volume expansion, and maintain structural stability upon repeated sodiation/desodiation process. Furthermore, the small particle size of FeS can shorten ion-diffusion distance and facilitate ion transportation. Therefore, the FeS@NC nanosphere shows excellent cycling performance and superior rate capability that it can deliver a high capacity of 520.1 mAh g-1 over 800 cycles at 2.0 A g-1 and a remarkable capacity of 625.9 mAh g-1 at 10.0 A g-1.
Collapse
Affiliation(s)
- Yongjie Jiang
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Anqi Li
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Qichang Pan
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China.
| | - Shunchao Wang
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Man Zhang
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Sijiang Hu
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Yahao Li
- Hubei Provincial Collaborative Innovation Center for New Energy Microgrid, College of Electrical Engineering & New Energy, China Three Gorges University, Yichang 443002, Hubei, China.
| | - Hongqiang Wang
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Qingyu Li
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Fenghua Zheng
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China.
| |
Collapse
|
3
|
Yao Y, Pei M, Su C, Jin X, Qu Y, Song Z, Jiang W, Jian X, Hu F. A Small-Molecule Organic Cathode with Extended Conjugation toward Enhancing Na + Migration Kinetics for Advanced Sodium-Ion Batteries. Small 2024:e2401481. [PMID: 38616774 DOI: 10.1002/smll.202401481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2024] [Revised: 03/28/2024] [Indexed: 04/16/2024]
Abstract
Organic cathode materials show excellent prospects for sodium-ion batteries (SIBs) owing to their high theoretical capacity. However, the high solubility and low electrical conductivity of organic compounds result in inferior cycle stability and rate performance. Herein, an extended conjugated organic small molecule is reported that combines electroactive quinone with piperazine by the structural designability of organic materials, 2,3,7,8-tetraamino-5,10-dihydrophenazine-1,4,6,9-tetraone (TDT). Through intermolecular condensation reaction, many redox-active groups C═O and extended conjugated structures are introduced without sacrificing the specific capacity, which ensures the high capacity of the electrode and enhances rate performance. The abundant NH2 groups can form intermolecular hydrogen bonds with the C═O groups to enhance the intermolecular interactions, resulting in lower solubility and higher stability. The TDT cathode delivers a high initial capacity of 293 mAh g-1 at 500 mA g-1 and maintains 90 mAh g-1 at an extremely high current density of 70 A g-1. The TDT || Na-intercalated hard carbon (Na-HC) full cells provide an average capacity of 210 mAh g-1 during 100 cycles at 500 mA g-1 and deliver a capacity of 120 mAh g-1 at 8 A g-1.
Collapse
Affiliation(s)
- Yuxin Yao
- School of Materials Science and Engineering, State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials Oriented Chemical Engineering, Technology Innovation Center of High Performance Resin Materials (Liaoning Province), Dalian University of Technology, Dalian, 116024, China
| | - Mengfai Pei
- School of Materials Science and Engineering, State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials Oriented Chemical Engineering, Technology Innovation Center of High Performance Resin Materials (Liaoning Province), Dalian University of Technology, Dalian, 116024, China
| | - Chang Su
- School of Materials Science and Engineering, State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials Oriented Chemical Engineering, Technology Innovation Center of High Performance Resin Materials (Liaoning Province), Dalian University of Technology, Dalian, 116024, China
| | - Xin Jin
- School of Materials Science and Engineering, State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials Oriented Chemical Engineering, Technology Innovation Center of High Performance Resin Materials (Liaoning Province), Dalian University of Technology, Dalian, 116024, China
| | - Yunpeng Qu
- School of Materials Science and Engineering, State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials Oriented Chemical Engineering, Technology Innovation Center of High Performance Resin Materials (Liaoning Province), Dalian University of Technology, Dalian, 116024, China
| | - Zihui Song
- School of Materials Science and Engineering, State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials Oriented Chemical Engineering, Technology Innovation Center of High Performance Resin Materials (Liaoning Province), Dalian University of Technology, Dalian, 116024, China
| | - Wanyuan Jiang
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials Oriented Chemical Engineering, School of Chemical Engineering, Technology Innovation Center of High Performance Resin Materials (Liaoning Province), Dalian University of Technology, Dalian, 116024, China
| | - Xigao Jian
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials Oriented Chemical Engineering, School of Chemical Engineering, Technology Innovation Center of High Performance Resin Materials (Liaoning Province), Dalian University of Technology, Dalian, 116024, China
| | - Fangyuan Hu
- School of Materials Science and Engineering, State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials Oriented Chemical Engineering, Technology Innovation Center of High Performance Resin Materials (Liaoning Province), Dalian University of Technology, Dalian, 116024, China
| |
Collapse
|
4
|
Wu C, Long Z, Dai H, Li Z, Qiao H, Liu K, Wang Q, Wang K, Wei Q. Flexible Self-Supporting MOF-Based Bean Pod Cube Hollow Nanofibers for Ultralong Cycling and High Rate Na Storage. ACS Appl Mater Interfaces 2024; 16:10545-10555. [PMID: 38358921 DOI: 10.1021/acsami.3c18941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/17/2024]
Abstract
Sodium-ion batteries (SIBs) have garnered significant attention due to their potential as an emerging energy storage solution. Tin sulfide (SnS) has emerged as a promising anode material for SIBs due to its impressive theoretical specific capacity of 1022 mA h g-1 and excellent electrical conductivity. However, its practical application has been hindered by issues such as large volume expansion, which adversely affects cycling stability and rate performance during the charge/discharge processes. In this study, a novel approach to address these issues by synthesizing the bean pod cube hollow metal-organic framework (MOF)-SnSx/NC@N-doped carbon nanofibers through a process involving electrospinning, PDA coating, and calcination. The Sn-MOF serves as a self-sacrificing template, facilitating the simultaneous dissociation of MOF and polymerization of dopamine, leading to the creation of hollow intermediates that retain tin components. Subsequent sulfidation results in the integration of the hollow MOF-SnSx/NC nanoparticles within 3D nitrogen-doped carbon nanofibers, forming the distinctive bean pod cube composite structure. This unique configuration effectively shortens the diffusion path and mitigates volume expansion for sodium ions, ultimately yielding an exceptional high rate performance of 130 mA h g-1 (10 A g-1) and an ultralong cycling performance of 328 mA h g-1 even after 3500 cycles (2 A g-1) as the anode for SIBs.
Collapse
Affiliation(s)
- Caiqin Wu
- Key Laboratory of Eco-textiles, Ministry of Education, School of Textile Science and Engineering, Jiangnan University, Wuxi 214122, China
| | - Zhiwen Long
- Key Laboratory of Eco-textiles, Ministry of Education, School of Textile Science and Engineering, Jiangnan University, Wuxi 214122, China
| | - Han Dai
- Key Laboratory of Eco-textiles, Ministry of Education, School of Textile Science and Engineering, Jiangnan University, Wuxi 214122, China
| | - Zhengchun Li
- Key Laboratory of Eco-textiles, Ministry of Education, School of Textile Science and Engineering, Jiangnan University, Wuxi 214122, China
| | - Hui Qiao
- Key Laboratory of Eco-textiles, Ministry of Education, School of Textile Science and Engineering, Jiangnan University, Wuxi 214122, China
| | - Ke Liu
- Hubei Key Laboratory of Low Dimensional Optoelectronic Material and Devices, Hubei University of Arts and Science, Xiangyang, Hubei 441053, China
| | - Qingqing Wang
- Key Laboratory of Eco-textiles, Ministry of Education, School of Textile Science and Engineering, Jiangnan University, Wuxi 214122, China
| | - Keliang Wang
- Fraunhofer USA, Inc., Center for Midwest, Michigan State University, East Lansing, Michigan 48824, United States
| | - Qufu Wei
- Key Laboratory of Eco-textiles, Ministry of Education, School of Textile Science and Engineering, Jiangnan University, Wuxi 214122, China
| |
Collapse
|
5
|
Yang X, Miao Z, Zhong Q, Zhang X, Zhang Z, Yang Z, Yu J. ZnS/SnS 2 Heterostructures Encapsulated in N-Doped Carbon Nanofibers for High-Performance Alkali Metal-Ion Batteries. ACS Appl Mater Interfaces 2023; 15:46881-46894. [PMID: 37769236 DOI: 10.1021/acsami.3c09151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/30/2023]
Abstract
Heterogeneous composite ZnS/SnS2 is designed to meet various requirements for alkali metal-ion batteries. The composite is prepared using an electrostatic spinning method and encapsulated in N-doped carbon fibers after high-temperature vulcanization. The special structure of the composite provides a dependable interconnection and fast conductive network for alkali metal ions. The conductive carbon network shortens the diffusion path and greatly improves the migration efficiency of the alkali metal ions in the electrode. As expected, when the current density is 0.1 A g-1, the ZnS/SnS2@NCNFs maintain a high discharge capacity of more than 1437.5, 1321.2, and 861.6 mA h g-1 for lithium-ion, sodium-ion, and potassium-ion batteries, respectively. What is more, a full cell using a prelithiated composite anode and a LiFePO4 cathode is tested and shows excellent electrochemical performance. This work provides new perspectives for the development of novel anodes that can efficiently store alkali metal ions, as well as for the fine-structure design of materials.
Collapse
Affiliation(s)
- Xiao Yang
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, Jiangxi, P. R. China
| | - Zhengrui Miao
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, Jiangxi, P. R. China
| | - Qi Zhong
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, Jiangxi, P. R. China
| | - Xiangxiang Zhang
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, Jiangxi, P. R. China
| | - Ze Zhang
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, Jiangxi, P. R. China
| | - Zhenyu Yang
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, Jiangxi, P. R. China
| | - Ji Yu
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, Jiangxi, P. R. China
| |
Collapse
|
6
|
Man Y, Sun J, Zhao X, Duan L, Fei Y, Bao J, Mo X, Zhou X. An ultrastable sodium-ion battery anode enabled by carbon-coated porous NaTi 2(PO 4) 3 olive-like nanospheres. J Colloid Interface Sci 2023; 635:417-426. [PMID: 36599240 DOI: 10.1016/j.jcis.2022.12.155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 12/15/2022] [Accepted: 12/28/2022] [Indexed: 12/31/2022]
Abstract
NaTi2(PO4)3 (NTP) is a promising anode material for sodium-ion batteries (SIBs). It has drawn wide attention because of its stable three-dimensional NASICON-type structure, proper redox potential, and large accommodation space for Na+. However, the inherent low electronic conductivity of the phosphate framework reduces its charge transfer kinetics, thus limiting its exploitation. Therefore, this paper proposes a material with carbon-coated porous NTP olive-like nanospheres (p-NTP@C) to tackle the issues above. Based on experimental data and theoretical calculations, the porous structure of the material is found to be able to provide more active sites and shorten the Na+ diffusion distance. In addition, the carbon coating can effectively improve the electron and Na+ diffusion kinetics. As the anode material for SIBs, the p-NTP@C olive-like nanospheres exhibit a high reversible capacity (127.3 mAh g-1 at 0.1 C) and ultrastable cycling performance (84.8% capacity retention after 10,000 cycles at 5 C). Furthermore, the sodium-ion full cells, composed of p-NTP@C anode and Na3V2(PO4)2F3@carbon cathode, also deliver excellent performance (75.7% capacity retention after 1000 cycles at 1 C). In brief, this nanostructure design provides a viable approach for the future development of long-life and highly stable NASICON-type anode materials.
Collapse
Affiliation(s)
- Yuehua Man
- School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Jianlu Sun
- School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Xuwen Zhao
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 999077 Hong Kong Special Administrative Region
| | - Liping Duan
- School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Yating Fei
- School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Jianchun Bao
- School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Xiangyin Mo
- School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China.
| | - Xiaosi Zhou
- School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China.
| |
Collapse
|
7
|
Lei H, Wang H, Cheng B, Zhang F, Liu X, Wang G, Wang B. Anion-Vacancy Modified WSSe Nanosheets on 3D Cross-Networked Porous Carbon Skeleton for Non-Aqueous Sodium-Based Dual-Ion Storage. Small 2023; 19:e2206340. [PMID: 36564352 DOI: 10.1002/smll.202206340] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 11/16/2022] [Indexed: 06/17/2023]
Abstract
Sodium-based dual-ion batteries (SDIBs) have become a new type of energy storage device with great application value because of their high operating voltage, high energy density, and low cost. However, transition-metal dichalcogenide (TMD) anodes show unsatisfactory Na+ electrochemical performance owing to the low intrinsic conductivity and inferior ion transport kinetics. Here, an elaborate design is developed to prepare a composite of WSSe nanosheets supported on a 3D cross-networked porous carbon skeleton (WSSe@CPCS), which possesses en-rich anion vacancies and WSSe with expanded inter-layer spacing, as well as an interconnected porous structure. As a result, the WSSe@CPCS anode for sodium-ion batteries (SIBs) exhibits preeminent reversible capacities, excellent cycle stability, and superior rate capability. The systematic electrochemical kinetic analysis and density functional theory results further show that the effect of anion vacancies and CPCS synergistically enhances the conductivity and reduces charge transfer resistance, thus making a great contribution to fast reaction kinetics. Finally, the implementations of the WSSe@CPCS anode in progressive SIB and DIB full-cell configurations exhibit satisfactory performance, which reveals their widely practical application. This research will provide an exciting approach to designing advanced defect-structured tungsten-based TMD materials for SIBs, DIBs, and even a broad range of energy storage.
Collapse
Affiliation(s)
- Hongyu Lei
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry (Ministry of Education), College of Chemistry & Materials science, Northwest University, Xi'an, 710127, P. R. China
| | - Hui Wang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry (Ministry of Education), College of Chemistry & Materials science, Northwest University, Xi'an, 710127, P. R. China
| | - Bingxue Cheng
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry (Ministry of Education), College of Chemistry & Materials science, Northwest University, Xi'an, 710127, P. R. China
| | - Fan Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry (Ministry of Education), College of Chemistry & Materials science, Northwest University, Xi'an, 710127, P. R. China
| | - Xiaojie Liu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry (Ministry of Education), College of Chemistry & Materials science, Northwest University, Xi'an, 710127, P. R. China
| | - Gang Wang
- State Key Lab Incubation Base of Photoelectric Technology and Functional Materials, International Collaborative Center on Photoelectric Technology and Nano Functional Materials, Institute of Photonics & Photon-Technology, Northwest University, Xi'an, 710127, P. R. China
| | - Beibei Wang
- State Key Lab Incubation Base of Photoelectric Technology and Functional Materials, International Collaborative Center on Photoelectric Technology and Nano Functional Materials, Institute of Photonics & Photon-Technology, Northwest University, Xi'an, 710127, P. R. China
| |
Collapse
|
8
|
Yang X, Huang Y, Wang M, Miao Z, Liu H, Chen Z, Yang Z, Yu J. Double Hollow Zn2SnO4/SnO2@N-doped Carbon Nanocubes as Anode Material for High-performance Li-ion Batteries. Chem Phys Lett 2022. [DOI: 10.1016/j.cplett.2022.140285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|
9
|
Sun Q, Yang M, Zeng G, Li J, Hu Z, Li D, Wang S, Si P, Tian Y, Ci L. Insights into the Potassium Ion Storage Behavior and Phase Evolution of a Tailored Yolk-Shell SnSe@C Anode. Small 2022; 18:e2203459. [PMID: 36026577 DOI: 10.1002/smll.202203459] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 08/05/2022] [Indexed: 06/15/2023]
Abstract
Tin chalcogenides are regarded as promising anode materials for potassium ion batteries (PIBs) due to their considerable specific capacity. However, the severe volume effect, limited electronic conductivity, and the shuttle effect of the potassiation product restrict the application prospect. Herein, based on the metal evaporation reaction, a facile structural engineering strategy for yolk-shell SnSe encapsulated in carbon shell (SnSe@C) is proposed. The internal void can accommodate the volume change of the SnSe core and the carbon shell can enhance the electronic conductivity. Combining qualitative and quantitative electrochemical analyses, the distinguished electrochemical performance of SnSe@C anode is attributed to the contribution of enhanced capacitive behavior. Additionally, first-principles calculations elucidate that the heteroatomic doped carbon exhibits a preferable affinity toward potassium ions and the potassiation product K2 Se, boosting the rate performance and capacity retention consequently. Furthermore, the phase evolution of SnSe@C electrode during the potassiation/depotassiation process is clarified by in situ X-ray diffraction characterization, and the crystal transition from the SnSe Pnma(62) to Cmcm(63) point group is discovered unpredictably. This work demonstrates a pragmatic avenue to tailor the SnSe@C anode via a facile structural engineering strategy and chemical regulation, providing substantial clarification for the phase evolution mechanism of SnSe-based anode for PIBs.
Collapse
Affiliation(s)
- Qing Sun
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), Research Center for Carbon Nanomaterials, School of Materials Science and Engineering, Shandong University, Jinan, 250061, China
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin, 150001, China
| | - Maoxiang Yang
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), Research Center for Carbon Nanomaterials, School of Materials Science and Engineering, Shandong University, Jinan, 250061, China
| | - Guifang Zeng
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), Research Center for Carbon Nanomaterials, School of Materials Science and Engineering, Shandong University, Jinan, 250061, China
| | - Jing Li
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), Research Center for Carbon Nanomaterials, School of Materials Science and Engineering, Shandong University, Jinan, 250061, China
| | - Zhibiao Hu
- School of Mechanical, Electrical and Information Engineering, Shandong University, Weihai, 264209, China
| | - Deping Li
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), Research Center for Carbon Nanomaterials, School of Materials Science and Engineering, Shandong University, Jinan, 250061, China
- State Key Laboratory of Advanced Welding and Joining, School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China
| | - Shang Wang
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin, 150001, China
| | - Pengchao Si
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), Research Center for Carbon Nanomaterials, School of Materials Science and Engineering, Shandong University, Jinan, 250061, China
| | - Yanhong Tian
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin, 150001, China
| | - Lijie Ci
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), Research Center for Carbon Nanomaterials, School of Materials Science and Engineering, Shandong University, Jinan, 250061, China
- State Key Laboratory of Advanced Welding and Joining, School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China
| |
Collapse
|