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Wang J, Li G, Zhang X, Zong K, Yang Y, Zhang X, Wang X, Chen Z. Undercoordination Chemistry of Sulfur Electrocatalyst in Lithium-Sulfur Batteries. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2311019. [PMID: 38135452 DOI: 10.1002/adma.202311019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 11/20/2023] [Indexed: 12/24/2023]
Abstract
Undercoordination chemistry is an effective strategy to modulate the geometry-governed electronic structure and thereby regulate the activity of sulfur electrocatalysts. Efficient sulfur electrocatalysis is requisite to overcome the sluggish kinetics in lithium-sulfur (Li-S) batteries aroused by multi-electron transfer and multi-phase conversions. Recent advances unveil the great promise of undercoordination chemistry in facilitating and stabilizing sulfur electrochemistry, yet a related review with systematicness and perspectives is still missing. Herein, it is carefully combed through the recent progress of undercoordination chemistry in sulfur electrocatalysis. The typical material structures and operational strategies are elaborated, while the underlying working mechanism is also detailly introduced and generalized into polysulfide adsorption behaviors, polysulfide conversion kinetics, electron/ion transport, and dynamic reconstruction. Moreover, perspectives on the future development of undercoordination chemistry are further proposed.
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Affiliation(s)
- Jiayi Wang
- Institute of Carbon Neutrality, Zhejiang Wanli University, Ningbo, 315100, China
| | - Gaoran Li
- MIIT Key Laboratory of Advanced Display Materials and Devices, College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
- Department of Chemical Engineering, University of Waterloo, Waterloo, N2L 3G1, Canada
| | - Xiaomin Zhang
- South China Academy of Advanced Optoelectronics, South China Normal University, Guangdong, 510006, China
| | - Kai Zong
- Institute of Carbon Neutrality, Zhejiang Wanli University, Ningbo, 315100, China
| | - Yi Yang
- Institute of Carbon Neutrality, Zhejiang Wanli University, Ningbo, 315100, China
| | - Xiaoyu Zhang
- Institute of Carbon Neutrality, Zhejiang Wanli University, Ningbo, 315100, China
| | - Xin Wang
- Institute of Carbon Neutrality, Zhejiang Wanli University, Ningbo, 315100, China
- South China Academy of Advanced Optoelectronics, South China Normal University, Guangdong, 510006, China
| | - Zhongwei Chen
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
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2
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Zheng M, Zhao J, Wu W, Chen R, Chen S, Cheng N. Co/CoS 2 Heterojunction Embedded in N, S-Doped Hollow Nanocage for Enhanced Polysulfides Conversion in High-Performance Lithium-Sulfur Batteries. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2303192. [PMID: 37712177 DOI: 10.1002/smll.202303192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Revised: 08/26/2023] [Indexed: 09/16/2023]
Abstract
Modulating the electronic configuration of the substrate to achieve the optimal chemisorption toward polysulfides (LiPSs) for boosting polysulfide conversion is a promising way to the efficient Li-S batteries but filled with challenges. Herein, a Co/CoS2 heterostructure is elaborately built to tuning d-orbital electronic structure of CoS2 for a high-performance electrocatalyst. Theoretical simulations first evidence that Co metal as the electron donator can form a built-in electric field with CoS2 and downshift the d-band center, leading to the well-optimized adsorption strength for lithium polysulfides on CoS2 , thus contributing a favorable way for expediting the redox reaction kinetics of LiPSs. As verification of prediction, a Co/CoS2 heterostructure implanted in porous hollow N, S co-doped carbon nanocage (Co/CoS2 @NSC) is designed to realize the electronic configuration regulation and promote the electrochemical performance. Consequently, the batteries assembled with Co/CoS2 @NSC cathode display an outstanding specific capacity and an admirable cycling property as well as a salient property of 8.25 mAh cm-2 under 8.18 mg cm-2 . The DFT calculation also reveals the synergistic effect of N, S co-doping for enhancing polysulfide adsorption as well as the detriment of excessive sulfur doping.
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Affiliation(s)
- Ming Zheng
- College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China
| | - Junzhe Zhao
- College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China
| | - Wei Wu
- College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China
| | - Runzhe Chen
- College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China
| | - Suhao Chen
- College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China
| | - Niancai Cheng
- College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China
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3
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Zhu Y, Chen Z, Chen H, Fu X, Awuye DE, Yin X, Zhao Y. Breaking the Barrier: Strategies for Mitigating Shuttle Effect in Lithium-Sulfur Batteries Using Advanced Separators. Polymers (Basel) 2023; 15:3955. [PMID: 37836004 PMCID: PMC10575298 DOI: 10.3390/polym15193955] [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: 09/04/2023] [Revised: 09/27/2023] [Accepted: 09/27/2023] [Indexed: 10/15/2023] Open
Abstract
Lithium-sulfur (Li-S) batteries are considered one of the most promising energy storage systems due to their high theoretical capacity, high theoretical capacity density, and low cost. However, challenges such as poor conductivity of sulfur (S) elements in active materials, the "shuttle effect" caused by lithium polysulfide, and the growth of lithium dendrites impede the commercial development of Li-S batteries. As a crucial component of the battery, the separator plays a vital role in mitigating the shuttle effect caused by polysulfide. Traditional polypropylene, polyethylene, and polyimide separators are constrained by their inherent limitations, rendering them unsuitable for direct application in lithium-sulfur batteries. Therefore, there is an urgent need for the development of novel separators. This review summarizes the applications of different separator preparation methods and separator modification methods in lithium-sulfur batteries and analyzes their electrochemical performance.
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Affiliation(s)
- Yingbao Zhu
- School of Mechanical and Power Engineering, Nanjing Tech University, Nanjing 211800, China; (Y.Z.); (X.Y.); (Y.Z.)
| | - Zhou Chen
- School of Mechanical and Power Engineering, Nanjing Tech University, Nanjing 211800, China; (Y.Z.); (X.Y.); (Y.Z.)
| | - Hui Chen
- Jiangsu Zhongneng Polysilicon Technology Development Co., Ltd., Xuzhou 221000, China; (H.C.); (X.F.)
| | - Xuguang Fu
- Jiangsu Zhongneng Polysilicon Technology Development Co., Ltd., Xuzhou 221000, China; (H.C.); (X.F.)
| | - Desire Emefa Awuye
- Department of Minerals and Materials Engineering, University of Mines and Technology, Tarkwa 03123, Ghana;
| | - Xichen Yin
- School of Mechanical and Power Engineering, Nanjing Tech University, Nanjing 211800, China; (Y.Z.); (X.Y.); (Y.Z.)
| | - Yixuan Zhao
- School of Mechanical and Power Engineering, Nanjing Tech University, Nanjing 211800, China; (Y.Z.); (X.Y.); (Y.Z.)
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4
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Liang C, Yang S, Cai D, Liu J, Yu S, Li T, Wang H, Liu Y, Nie H, Yang Z. Adaptively Reforming Natural Enzyme to Activate Catalytic Microenvironment for Polysulfide Conversion in Lithium-Sulfur Batteries. ACS APPLIED MATERIALS & INTERFACES 2023; 15:1256-1264. [PMID: 36594345 DOI: 10.1021/acsami.2c18976] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Catalyzing polysulfide conversion is a promising way toward accelerating complex and sluggish sulfur redox reactions (SRRs) in lithium-sulfur batteries. Reasonable alteration of an enzyme provides a new means to expand the natural enzyme universe to catalytic reactions in abiotic systems. Herein, we design and fabricate a denatured hemocyanin (DHc) to efficiently catalyze the SRR. After denaturation, the unfolded β-sheet architectures with exposed rich atomically dispersed Cu, O, and N sites and intermolecular H-bonds are formed in DHc, which not only provides the polysulfides for a strong spatial confinement effect in microenvironment via S-O and Li···N interactions but also activates chemical channels for electron/Li+ transport into the Cu active center via H/Li-bonds to catalyze polysulfide conversion. As expected, the charge/discharge kinetics of DHc-containing cathodes is fundamentally improved in cyclability with nearly 100% Coulombic efficiency and capacity even under high sulfur loading (4.3 mg cm-2) and lean-electrolyte (8 μL mg-1) conditions.
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Affiliation(s)
- Ce Liang
- Key Laboratory of Carbon Materials of Zhejiang Province, Wenzhou University, Wenzhou 325035, People's Republic of China
| | - Shuo Yang
- Key Laboratory of Carbon Materials of Zhejiang Province, Wenzhou University, Wenzhou 325035, People's Republic of China
- College of Electrical and Electronic Engineering, Wenzhou University, Wenzhou 325035, People's Republic of China
| | - Dong Cai
- Key Laboratory of Carbon Materials of Zhejiang Province, Wenzhou University, Wenzhou 325035, People's Republic of China
| | - Jun Liu
- Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials, School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, People's Republic of China
| | - Shuang Yu
- Key Laboratory of Carbon Materials of Zhejiang Province, Wenzhou University, Wenzhou 325035, People's Republic of China
| | - Tingting Li
- Key Laboratory of Carbon Materials of Zhejiang Province, Wenzhou University, Wenzhou 325035, People's Republic of China
| | - Haohao Wang
- College of Electrical and Electronic Engineering, Wenzhou University, Wenzhou 325035, People's Republic of China
| | - Yahui Liu
- Key Laboratory of Carbon Materials of Zhejiang Province, Wenzhou University, Wenzhou 325035, People's Republic of China
| | - Huagui Nie
- Key Laboratory of Carbon Materials of Zhejiang Province, Wenzhou University, Wenzhou 325035, People's Republic of China
| | - Zhi Yang
- Key Laboratory of Carbon Materials of Zhejiang Province, Wenzhou University, Wenzhou 325035, People's Republic of China
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5
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Yu S, Zhang Y, Yang S, Xiao K, Cai D, Nie H, Yang Z. High-density oxygen-doped nano-TaN enables robust polysulfide interconversion in Li−S batteries. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.107911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Ma Z, Liu W, Jiang X, Liu Y, Yang G, Wu Z, Zhou Q, Chen M, Xie J, Ni L, Diao G. Wide-Temperature-Range Li-S Batteries Enabled by Thiodimolybdate [Mo 2S 12] 2- as a Dual-Function Molecular Catalyst for Polysulfide Redox and Lithium Intercalation. ACS NANO 2022; 16:14569-14581. [PMID: 36036999 DOI: 10.1021/acsnano.2c05029] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
In lithium-sulfur batteries, a serious obstacle is the dissolution and diffusion of long-chain polysulfides, resulting in rapid capacity decay and low Coulombic efficiency. At present, a common practice is designing cathode materials to solve this problem, but this gives rise to reduced gravimetric and volumetric energy densities. Herein, we present a thiodimolybdate [Mo2S12]2- cluster as sulfur host material that can effectively confine the shuttling of polysulfides and contribute its own capacity in Li-S cells. Moreover, the [Mo2S12]2- cluster as a "bidirectional catalyst" can effectively catalyze polysulfide reduction and lithium sulfide oxidation. We further investigate the catalytic mechanism of [Mo2S12]2- clusters by theoretical calculations, in situ spectroscopic techniques, and electrochemical studies. The (NH4)2Mo2S12/S cathodes show good electrochemical performance under a wide range of temperatures. In addition, a pouch cell fabricated with (NH4)2Mo2S12/S cathodes maintains a stable output for more than 50 cycles.
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Affiliation(s)
- Zhiyuan Ma
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002 Jiangsu, P.R. China
- Pylon Battery Co., LTD, Yangzhou, 225002 Jiangsu, P.R. China
| | - Wentao Liu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002 Jiangsu, P.R. China
| | - Xinyuan Jiang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002 Jiangsu, P.R. China
| | - Yi Liu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002 Jiangsu, P.R. China
| | - Guang Yang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002 Jiangsu, P.R. China
| | - Zhen Wu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002 Jiangsu, P.R. China
- School of Energy and Power Engineering, Jiangsu University, Zhenjiang, 212013 Jiangsu, P.R. China
| | - Qiuping Zhou
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002 Jiangsu, P.R. China
| | - Ming Chen
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002 Jiangsu, P.R. China
| | - Ju Xie
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002 Jiangsu, P.R. China
| | - Lubin Ni
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002 Jiangsu, P.R. China
| | - Guowang Diao
- Pylon Battery Co., LTD, Yangzhou, 225002 Jiangsu, P.R. China
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7
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Li Y, Wu H, Wu D, Wei H, Guo Y, Chen H, Li Z, Wang L, Xiong C, Meng Q, Liu H, Chan CK. High-Density Oxygen Doping of Conductive Metal Sulfides for Better Polysulfide Trapping and Li 2 S-S 8 Redox Kinetics in High Areal Capacity Lithium-Sulfur Batteries. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2200840. [PMID: 35411708 PMCID: PMC9189686 DOI: 10.1002/advs.202200840] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 03/17/2022] [Indexed: 05/10/2023]
Abstract
Exploring new materials and methods to achieve high utilization of sulfur with lean electrolyte is still a common concern in lithium-sulfur batteries. Here, high-density oxygen doping chemistry is introduced for making highly conducting, chemically stable sulfides with a much higher affinity to lithium polysulfides. It is found that doping large amounts of oxygen into NiCo2 S4 is feasible and can make it outperform the pristine oxides and natively oxidized sulfides. Taking the advantages of high conductivity, chemical stability, the introduced large Li-O interactions, and activated Co (Ni) facets for catalyzing Sn 2- , the NiCo2 (O-S)4 is able to accelerate the Li2 S-S8 redox kinetics. Specifically, lithium-sulfur batteries using free-standing NiCo2 (O-S)4 paper and interlayer exhibit the highest capacity of 8.68 mAh cm-2 at 1.0 mA cm-2 even with a sulfur loading of 8.75 mg cm-2 and lean electrolyte of 3.8 µL g-1 . The high-density oxygen doping chemistry can be also applied to other metal compounds, suggesting a potential way for developing more powerful catalysts towards high performance of Li-S batteries.
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Affiliation(s)
- Yiyi Li
- Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper DevelopmentCollege of Bioresources Chemical and Materials EngineeringShaanxi University of Science & TechnologyXi'an710021P. R. China
- National Demonstration Center for Experimental Light Chemistry Engineering EducationShaanxi University of Science & TechnologyXi'an710021P. R. China
| | - Haiwei Wu
- Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper DevelopmentCollege of Bioresources Chemical and Materials EngineeringShaanxi University of Science & TechnologyXi'an710021P. R. China
- National Demonstration Center for Experimental Light Chemistry Engineering EducationShaanxi University of Science & TechnologyXi'an710021P. R. China
| | - Donghai Wu
- Henan Key Laboratory of Nanocomposites and ApplicationsInstitute of Nanostructured Functional MaterialsHuanghe Science and Technology CollegeZhengzhou450006P. R. China
| | - Hairu Wei
- Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper DevelopmentCollege of Bioresources Chemical and Materials EngineeringShaanxi University of Science & TechnologyXi'an710021P. R. China
- National Demonstration Center for Experimental Light Chemistry Engineering EducationShaanxi University of Science & TechnologyXi'an710021P. R. China
| | - Yanbo Guo
- Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper DevelopmentCollege of Bioresources Chemical and Materials EngineeringShaanxi University of Science & TechnologyXi'an710021P. R. China
- National Demonstration Center for Experimental Light Chemistry Engineering EducationShaanxi University of Science & TechnologyXi'an710021P. R. China
| | - Houyang Chen
- Chongqing Institute of Green and Intelligent TechnologyChinese Academy of SciencesChongqing400714P. R. China
| | - Zhijian Li
- Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper DevelopmentCollege of Bioresources Chemical and Materials EngineeringShaanxi University of Science & TechnologyXi'an710021P. R. China
- National Demonstration Center for Experimental Light Chemistry Engineering EducationShaanxi University of Science & TechnologyXi'an710021P. R. China
| | - Lei Wang
- Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic MaterialsSchool of Materials Science and EngineeringShaanxi University of Science and TechnologyXi'an710021P. R. China
| | - Chuanyin Xiong
- Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper DevelopmentCollege of Bioresources Chemical and Materials EngineeringShaanxi University of Science & TechnologyXi'an710021P. R. China
- National Demonstration Center for Experimental Light Chemistry Engineering EducationShaanxi University of Science & TechnologyXi'an710021P. R. China
| | - Qingjun Meng
- Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper DevelopmentCollege of Bioresources Chemical and Materials EngineeringShaanxi University of Science & TechnologyXi'an710021P. R. China
- National Demonstration Center for Experimental Light Chemistry Engineering EducationShaanxi University of Science & TechnologyXi'an710021P. R. China
| | - Hanbin Liu
- Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper DevelopmentCollege of Bioresources Chemical and Materials EngineeringShaanxi University of Science & TechnologyXi'an710021P. R. China
- National Demonstration Center for Experimental Light Chemistry Engineering EducationShaanxi University of Science & TechnologyXi'an710021P. R. China
| | - Candace K. Chan
- Materials Science and EngineeringSchool for Engineering of MatterTransport and EnergyArizona State UniversityTempe85287USA
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Zhang Y, Zhang X, Silva SRP, Ding B, Zhang P, Shao G. Lithium-Sulfur Batteries Meet Electrospinning: Recent Advances and the Key Parameters for High Gravimetric and Volume Energy Density. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2103879. [PMID: 34796682 PMCID: PMC8811819 DOI: 10.1002/advs.202103879] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 10/06/2021] [Indexed: 05/10/2023]
Abstract
Lithium-sulfur (Li-S) batteries have been regarded as a promising next-generation energy storage technology for their ultrahigh theoretical energy density compared with those of the traditional lithium-ion batteries. However, the practical applications of Li-S batteries are still blocked by notorious problems such as the shuttle effect and the uncontrollable growth of lithium dendrites. Recently, the rapid development of electrospinning technology provides reliable methods in preparing flexible nanofibers materials and is widely applied to Li-S batteries serving as hosts, interlayers, and separators, which are considered as a promising strategy to achieve high energy density flexible Li-S batteries. In this review, a fundamental introduction of electrospinning technology and multifarious electrospinning-based nanofibers used in flexible Li-S batteries are presented. More importantly, crucial parameters of specific capacity, electrolyte/sulfur (E/S) ratio, sulfur loading, and cathode tap density are emphasized based on the proposed mathematic model, in which the electrospinning-based nanofibers are used as important components in Li-S batteries to achieve high gravimetric (WG ) and volume (WV ) energy density of 500 Wh kg-1 and 700 Wh L-1 , respectively. These systematic summaries not only provide the principles in nanofiber-based electrode design but also propose enlightening directions for the commercialized Li-S batteries with high WG and WV .
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Affiliation(s)
- Yongshang Zhang
- State Center for International Cooperation on Designer Low‐Carbon & Environmental Materials (CDLCEM)School of Materials Science and Engineering100 Kexue AvenueZhengzhou UniversityZhengzhou450001China
- Zhengzhou Materials Genome Institute (ZMGI)XingyangZhengzhou450100China
| | - Xilai Zhang
- State Center for International Cooperation on Designer Low‐Carbon & Environmental Materials (CDLCEM)School of Materials Science and Engineering100 Kexue AvenueZhengzhou UniversityZhengzhou450001China
- Zhengzhou Materials Genome Institute (ZMGI)XingyangZhengzhou450100China
| | - S. Ravi P. Silva
- State Center for International Cooperation on Designer Low‐Carbon & Environmental Materials (CDLCEM)School of Materials Science and Engineering100 Kexue AvenueZhengzhou UniversityZhengzhou450001China
- Zhengzhou Materials Genome Institute (ZMGI)XingyangZhengzhou450100China
- Nanoelectronics CenterAdvanced Technology InstituteUniversity of SurreyGuildfordGU2 7XHUK
| | - Bin Ding
- State Key Laboratory for Modification of Chemical Fibers and Polymer MaterialsCollege of TextileDonghua UniversityShanghai201620China
| | - Peng Zhang
- State Center for International Cooperation on Designer Low‐Carbon & Environmental Materials (CDLCEM)School of Materials Science and Engineering100 Kexue AvenueZhengzhou UniversityZhengzhou450001China
- Zhengzhou Materials Genome Institute (ZMGI)XingyangZhengzhou450100China
| | - Guosheng Shao
- State Center for International Cooperation on Designer Low‐Carbon & Environmental Materials (CDLCEM)School of Materials Science and Engineering100 Kexue AvenueZhengzhou UniversityZhengzhou450001China
- Zhengzhou Materials Genome Institute (ZMGI)XingyangZhengzhou450100China
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9
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Zhou S, Yang S, Cai D, Liang C, Yu S, Hu Y, Nie H, Yang Z. Cofactor-Assisted Artificial Enzyme with Multiple Li-Bond Networks for Sustainable Polysulfide Conversion in Lithium-Sulfur Batteries. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2104205. [PMID: 34747159 PMCID: PMC8787425 DOI: 10.1002/advs.202104205] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 10/12/2021] [Indexed: 05/19/2023]
Abstract
Lithium-sulfur batteries possess high theoretical energy density but suffer from rapid capacity fade due to the shuttling and sluggish conversion of polysulfides. Aiming at these problems, a biomimetic design of cofactor-assisted artificial enzyme catalyst, melamine (MM) crosslinked hemin on carboxylated carbon nanotubes (CNTs) (i.e., [CNTs-MM-hemin]), is presented to efficiently convert polysulfides. The MM cofactors bind with the hemin artificial enzymes and CNT conductive substrates through FeN5 coordination and/or covalent amide bonds to provide high and durable catalytic activity for polysulfide conversions, while π-π conjugations between hemin and CNTs and multiple Li-bond networks offered by MM endow the cathode with good electronic/Li+ transmission ability. This synergistic mechanism enables rapid sulfur reaction kinetics, alleviated polysulfide shuttling, and an ultralow (<1.3%) loss of hemin active sites in electrolyte, which is ≈60 times lower than those of noncovalent crosslinked samples. As a result, the Li-S battery using [CNTs-MM-hemin] cathode retains a capacity of 571 mAh g-1 after 900 cycles at 1C with an ultralow capacity decay rate of 0.046% per cycle. Even under raising sulfur loadings up to 7.5 mg cm-2 , the cathode still can steadily run 110 cycles with a capacity retention of 83%.
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Affiliation(s)
- Suya Zhou
- Key Laboratory of Carbon Materials of Zhejiang ProvinceWenzhou UniversityWenzhou325035China
| | - Shuo Yang
- Key Laboratory of Carbon Materials of Zhejiang ProvinceWenzhou UniversityWenzhou325035China
- College of Electrical and Electronic EngineeringWenzhou UniversityWenzhou325035China
| | - Dong Cai
- Key Laboratory of Carbon Materials of Zhejiang ProvinceWenzhou UniversityWenzhou325035China
| | - Ce Liang
- Key Laboratory of Carbon Materials of Zhejiang ProvinceWenzhou UniversityWenzhou325035China
| | - Shuang Yu
- Key Laboratory of Carbon Materials of Zhejiang ProvinceWenzhou UniversityWenzhou325035China
| | - Yue Hu
- Key Laboratory of Carbon Materials of Zhejiang ProvinceWenzhou UniversityWenzhou325035China
| | - Huagui Nie
- Key Laboratory of Carbon Materials of Zhejiang ProvinceWenzhou UniversityWenzhou325035China
| | - Zhi Yang
- Key Laboratory of Carbon Materials of Zhejiang ProvinceWenzhou UniversityWenzhou325035China
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10
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Lei D, Shang W, Zhang X, Li Y, Qiao S, Zhong Y, Deng X, Shi X, Zhang Q, Hao C, Song X, Zhang F. Facile Synthesis of Heterostructured MoS 2-MoO 3 Nanosheets with Active Electrocatalytic Sites for High-Performance Lithium-Sulfur Batteries. ACS NANO 2021; 15:20478-20488. [PMID: 34860017 DOI: 10.1021/acsnano.1c09007] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
In order to overcome the shuttling effect of soluble polysulfides in lithium-sulfur (Li-S) batteries, we have designed and synthesized a creative MoS2-MoO3/carbon shell (MoS2-MoO3/CS) composite by a H2O2-enabled oxidizing process under mild conditions, which is further used for separator modification. The MoS2-MoO3 heterostructures can conform to the CS morphology, forming two-dimensional nanosheets, and thus shorten the transport path of lithium ion and electrons. Based on our theoretical calculations and experiments, the heterostructures show strong surface affinity toward polysulfides and good catalytic activity to accelerate polysulfide conversion. Benefiting from the above merits, the Li-S battery with a MoS2-MoO3/CS modified separator exhibits good electrochemical performance: it delivers a high discharge capacity of 1531 mAh g-1 at 0.2 C; the initial capacity can be maintained by 92% after 600 cycles at 1 C, and the discharge capacity decay rate is only 0.0135% per cycle. Moreover, the MoS2-MoO3/CS battery still achieves good cycling stability with 78% capacity retention after 100 cycles at 0.2 C with a high sulfur loading of 5.9 mg cm-2. This work offers a facile design to construct the MoS2-MoO3 heterostructures for high-performance Li-S batteries, and may also improve one's understanding on the heterostructure contribution during polysulfide adsorption and conversion.
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Affiliation(s)
- Da Lei
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
- School of Chemical Engineering, Dalian University of Technology, Panjin 124221, China
| | - Wenzhe Shang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
- School of Chemical Engineering, Dalian University of Technology, Panjin 124221, China
| | - Xu Zhang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
- School of Chemical Engineering, Dalian University of Technology, Panjin 124221, China
| | - Yongpeng Li
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
- School of Chemical Engineering, Dalian University of Technology, Panjin 124221, China
| | - Shaoming Qiao
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
- School of Chemical Engineering, Dalian University of Technology, Panjin 124221, China
| | - Yiping Zhong
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
- School of Chemical Engineering, Liaoning Key Lab for Energy Materials and Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Xiaoyu Deng
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
- School of Chemical Engineering, Dalian University of Technology, Panjin 124221, China
| | - Xiaoshan Shi
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
- School of Chemical Engineering, Dalian University of Technology, Panjin 124221, China
| | - Qiang Zhang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
- School of Chemical Engineering, Dalian University of Technology, Panjin 124221, China
| | - Ce Hao
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
- School of Chemical Engineering, Dalian University of Technology, Panjin 124221, China
| | - Xuedan Song
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
- School of Chemical Engineering, Liaoning Key Lab for Energy Materials and Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Fengxiang Zhang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
- School of Chemical Engineering, Dalian University of Technology, Panjin 124221, China
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