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Ma Y, Ji H, Wang C, Bian H, Wu H, Ren Y, Wang B, Cao J, Cao X, Ding F, Lu J, Yang X, Meng X. High-Entropy Metal Oxide-Coated Carbon Cloth as Catalysts for Long-Life Li-S Batteries. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:11626-11634. [PMID: 38780496 DOI: 10.1021/acs.langmuir.4c00873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
Lithium-sulfur (Li-S) batteries with high specific energy density, low cost, and environmental friendliness of sulfur have been regarded as a competitive alternative to replace lithium-ion batteries. However, the shuttle effect and the sluggish conversion rate of lithium polysulfides (LiPSs) have seriously limited the practical application of Li-S batteries. Herein, high-entropy oxides grown on the carbon cloth (CC/HEO) are synthesized by a simple and ultrafast solution combustion method for the sulfur cathode. The as-prepared composites possess abundant HEO active sites for strong interaction with LiPSs, which can significantly promote redox kinetics. Besides, the carbon fiber substrate not only ensures high electrical conductivity but also accommodates large volume change, leading to a stable sulfur electrochemistry. Benefiting from the rational design, the Li-S batteries with CC/HEO as cathode skeleton exhibits good cyclability with a capacity decay rate of 0.057% per cycle after 1000 cycles at 2 C. More importantly, the Li-S batteries with 4.3 mg cm-2 high sulfur loading can still retain a high capacity retention of 78.2% after 100 cycles.
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Affiliation(s)
- Yujie Ma
- School of Intelligent Manufacturing and Information, Jiangsu Shipping College, Nantong 226010, China
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, College of Engineering and Applied Sciences, Nanjing University, Nanjing, Jiangsu 210093, China
| | - Hurong Ji
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, College of Engineering and Applied Sciences, Nanjing University, Nanjing, Jiangsu 210093, China
| | - Cong Wang
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, College of Engineering and Applied Sciences, Nanjing University, Nanjing, Jiangsu 210093, China
| | - Haifeng Bian
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, College of Engineering and Applied Sciences, Nanjing University, Nanjing, Jiangsu 210093, China
| | - Hao Wu
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, College of Engineering and Applied Sciences, Nanjing University, Nanjing, Jiangsu 210093, China
| | - Yilun Ren
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, College of Engineering and Applied Sciences, Nanjing University, Nanjing, Jiangsu 210093, China
| | - Biao Wang
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, College of Engineering and Applied Sciences, Nanjing University, Nanjing, Jiangsu 210093, China
| | - Jiangdong Cao
- School of Intelligent Manufacturing and Information, Jiangsu Shipping College, Nantong 226010, China
| | - Xueyu Cao
- School of Intelligent Manufacturing and Information, Jiangsu Shipping College, Nantong 226010, China
| | - Feng Ding
- School of Intelligent Manufacturing and Information, Jiangsu Shipping College, Nantong 226010, China
| | - Jiahao Lu
- School of Intelligent Manufacturing and Information, Jiangsu Shipping College, Nantong 226010, China
| | - Xiping Yang
- School of Intelligent Manufacturing and Information, Jiangsu Shipping College, Nantong 226010, China
| | - Xiangkang Meng
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, College of Engineering and Applied Sciences, Nanjing University, Nanjing, Jiangsu 210093, China
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Jia H, Fan J, Su P, Guo T, Liu MC. Cobalt Nitride Nanoparticles Encapsulated in N-Doped Carbon Nanotubes Modified Separator of Li-S Battery Achieving the Synergistic Effect of Restriction-Adsorption-Catalysis of Polysulfides. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2311343. [PMID: 38236167 DOI: 10.1002/smll.202311343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 01/03/2024] [Indexed: 01/19/2024]
Abstract
Although lithium-sulfur (Li-S) batteries have broad market prospects due to their high theoretical energy density and potential cost-effectiveness, the practical applications still face serious shuttle effects of polysulfides (LiPSs) and slow redox reactions. Therefore, in this paper, cobalt nitride nanoparticles encapsulated in nitrogen-doped carbon nanotube (CoN@NCNT) are prepared as a functional layer for the separator of high-performance Li-S batteries. Carbon nanotubes with large specific surface areas not only promote the transport of ions and electrons but also weaken the migration of LiPSs and confine the dissolution of LiPSs in electrolytes. The lithiophilic heteroatom N adsorbs LiPSs by strong chemical adsorption, and the CoN particles with high catalytic activity greatly improve the kinetics of the conversion between LiPSs and Li2S2/Li2S during the charge-discharge process. Due to these advantages, the battery with CoN@NCNT modified separator has superior rate performance (initial discharge capacity of 834.7 mAh g-1 after activation at 1 C) and excellent cycle performance (capacity remains 729.7 mAh g-1 after 200 cycles at 0.2 C). This work proposes a strategy that can give the separator a strong ability to confinement-adsorption-catalysis of LiPSs in order to provide more possibilities for the development of Li-S batteries.
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Affiliation(s)
- Henan Jia
- School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, 730050, P. R. China
- State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou, 730050, P. R. China
| | - Jiahang Fan
- School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, 730050, P. R. China
- State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou, 730050, P. R. China
| | - Pei Su
- School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, 730050, P. R. China
- State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou, 730050, P. R. China
| | - Taotao Guo
- School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, 730050, P. R. China
- State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou, 730050, P. R. China
| | - Mao-Cheng Liu
- School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, 730050, P. R. China
- State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou, 730050, P. R. China
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Lu W, Wang L, Han C, Chao Y, Xu C, Zhu J, Tian Y, Wang Z, Cui X. MoP quantum dots based multifunctional efficient electrocatalyst for stable and long-life flexible lithium-sulfur batteries. J Colloid Interface Sci 2024; 661:83-90. [PMID: 38295705 DOI: 10.1016/j.jcis.2024.01.155] [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: 10/27/2023] [Revised: 01/19/2024] [Accepted: 01/22/2024] [Indexed: 02/27/2024]
Abstract
The commercialization of lithium-sulfur (Li-S) batteries is challenging, owing to factors like the poor conductivity of S, the 'shuttle effect', and the slow reaction kinetics. To address these challenges, MoP quantum dots were decorated on hollow carbon spheres (MoPQDs/C) in this study and used as an efficient lithium polysulfides (LiPSs) adsorbents and catalysts. In this approach polysulfides are effectively trapped through strong chemisorption and physical adsorption while simultaneously facilitating LiPSs conversion by enhancing the reaction kinetics. MXene serves as a flexible physical barrier (MoPQDs/C@MXene), further enhancing the confinement of LiPSs. Moreover, both materials are conductive, significantly facilitating electron and charge transfer. Additionally, the flexible MoPQDs/C@MXene-S electrode offers a large specific surface area for sulfur loading and withstand volume expansion during electrochemical processes. As a result, the MoPQDs/C@MXene-S electrode exhibits excellent long-term cyclability and maintains a robust specific capacity of 992 mA h g-1 even after 800cycles at a rate of 1.0C (1C = 1675 mA g-1), with a minimal capacity decay rate of 0.034 % per cycle. This work proposes an efficient strategy to fabricate highly efficient electrocatalysts for advanced Li-S batteries.
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Affiliation(s)
- Wenqiang Lu
- Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou 450052, Henan, People's Republic of China
| | - Liu Wang
- Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou 450052, Henan, People's Republic of China
| | - Chunhong Han
- Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou 450052, Henan, People's Republic of China
| | - Yunfeng Chao
- Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou 450052, Henan, People's Republic of China
| | - Chunyang Xu
- Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou 450052, Henan, People's Republic of China
| | - Jianhua Zhu
- Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou 450052, Henan, People's Republic of China
| | - Yapeng Tian
- Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou 450052, Henan, People's Republic of China
| | - Zhuosen Wang
- Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou 450052, Henan, People's Republic of China.
| | - Xinwei Cui
- Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou 450052, Henan, People's Republic of China
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