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Zhou L, Yuan H, Fang R, Huang H, Gan Y, Xia Y, Zhang J, Xia X, He X, Zhang W. A Stable Lithium Metal Anode Enabled by the Site-Directed Lithium Deposition of ZnO-Nanosheet-Modified Carbon Cloth. CHEMSUSCHEM 2024; 17:e202400159. [PMID: 38581393 DOI: 10.1002/cssc.202400159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 03/16/2024] [Accepted: 04/05/2024] [Indexed: 04/08/2024]
Abstract
Uneven lithium (Li) metal deposition typically results in uncontrollable dendrite growth, which renders an unsatisfactory cycling stability and coulombic efficiency (CE) of Li metal batteries (LMBs), preventing their practical application. Herein, a novel carbon cloth with the modification of ZnO nanosheets (ZnO@CC) is fabricated for LMBs. The as-prepared ZnO@CC with a cross-linked network significantly reduces the local current density, and the design of ZnO nanosheets can promote the uniform deposition of Li metal as lithiophilic sites. As a result, the Li metal anodes (LMAs) based on ZnO@CC (ZnO@CC@Li) enables a long cycle life over 640 hours with a low overpotential of 65 mV at a current density of 4 mA cm-2 with a capacity of 1 mAh cm-2 in the symmetric cell. Moreover, when coupling the ZnO@CC@Li with a LiFePO4 cathode, the assembled full cell exhibits excellent long cycle and rate performance, highlighting its promising practical application prospect.
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Affiliation(s)
- Luoting Zhou
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, P. R. China
- Shaoxing Key Laboratory of High Performance Fibers & Products, Shaoxing University, Shaoxing, Zhejiang, 312000, P. R. China
| | - Huadong Yuan
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, P. R. China
| | - Ruyi Fang
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, P. R. China
| | - Hui Huang
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, P. R. China
| | - Yongping Gan
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, P. R. China
| | - Yang Xia
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, P. R. China
| | - Jun Zhang
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, P. R. China
| | - Xinhui Xia
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, P. R. China
| | - Xinping He
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, P. R. China
| | - Wenkui Zhang
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, P. R. China
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2
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Hu J, Wang Z, Yuan H, Yang M, Chen J, Fu X, Wang Z, Luo W, Huang Y, Zhang F, Liu C, Lu Z. Multifunctional Lithium Phytate/Carbon Nanotube Double-Layer-Modified Separators for High-Performance Lithium-Sulfur Batteries. ACS APPLIED MATERIALS & INTERFACES 2024; 16:39215-39224. [PMID: 39038493 DOI: 10.1021/acsami.4c04541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/24/2024]
Abstract
Li dendrite and the shuttle effect are the two primary hindrances to the commercial application of lithium-sulfur batteries (LSBs). Here, a multifunctional separator has been fabricated via successively coating carbon nanotubes (CNTs) and lithium phytate (LP) onto a commercial polypropylene (PP) separator to improve the performance of LSBs. The LP coating layer with abundant electronegative phosphate group as permselective ion sieve not only reduces the polysulfide shuttle but also facilitates uniform Li+ flux through the PP separator. And the highly conductive CNTs on the second layer act as a second collector to accelerate the reversible conversion of sulfide species. The synergistic effect of LP and CNTs further increases the electrolyte wettability and reaction kinetics of cells with a modified separator and suppresses the shuttle effect and growth of Li dendrite. Consequently, the LSBs present much enhanced rate performance and cyclic performance. It is expected that this study may generate an executable tactic for interface engineering of separator to accelerate the industrial application process of LSBs.
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Affiliation(s)
- Jing Hu
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
- Guangdong Research Center for Interfacial Engineering of Functional Materials, Guangdong Provincial Key Laboratory of New Energy Materials Service Safety, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, China
| | - Zhenyu Wang
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Huimin Yuan
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Mingyang Yang
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Jingjing Chen
- Guangdong Research Center for Interfacial Engineering of Functional Materials, Guangdong Provincial Key Laboratory of New Energy Materials Service Safety, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, China
| | - Xuelian Fu
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Zhiqiang Wang
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Wen Luo
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Yongcong Huang
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Fangchang Zhang
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Chen Liu
- Guangdong Research Center for Interfacial Engineering of Functional Materials, Guangdong Provincial Key Laboratory of New Energy Materials Service Safety, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, China
| | - Zhouguang Lu
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
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3
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Zhang S, Cheng B, Fang Y, Dang D, Shen X, Li Z, Wu M, Hong Y, Liu Q. Inhibition of lithium dendrites and dead lithium by an ionic liquid additive toward safe and stable lithium metal anodes. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.11.024] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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4
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Gao M, Lan J, Fu Y, Guo W. Biomass-Derived Lenthionine Enhanced by Radical Receptor for Rechargeable Lithium Battery. CHEMSUSCHEM 2022; 15:e202200423. [PMID: 35365969 DOI: 10.1002/cssc.202200423] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 04/01/2022] [Indexed: 06/14/2023]
Abstract
Organic compounds with tunable structures and high capacities are promising electrode materials for batteries. Cyclic organosulfide (i. e., lenthionine), as a natural material that can provide excellent ratio of effective atoms (S) and non-efficient atoms (C, H, and others), has a high theoretical specific capacity of 853.6 mAh g-1 . However, the multiphase transformation causes rapid capacity decay and hysteresis of charge/discharge voltage plateaus. To overcome these issues, a receptor, phenyl disulfide (PDS), was introduced to truncate subsequent transformations directly from the source and change the reaction path, inhibit the capacity decay, and improve the cycling stability. After 500 cycles, the capacity retention was 81.1 % with PDS, which was in sharp contrast to that (35.6 %) of the control cell. This study helps to understand the electrochemistry mechanism of biomass-derived lenthionine used as a high-capacity cathode material for rechargeable lithium batteries, also offering a strategy to overcome its inherent issues.
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Affiliation(s)
- Mengnan Gao
- College of Chemistry, Zhengzhou University, 100 Science Avenue, Zhengzhou, 450001, P. R. China
| | - Jiaqi Lan
- College of Chemistry, Zhengzhou University, 100 Science Avenue, Zhengzhou, 450001, P. R. China
| | - Yongzhu Fu
- College of Chemistry, Zhengzhou University, 100 Science Avenue, Zhengzhou, 450001, P. R. China
| | - Wei Guo
- College of Chemistry, Zhengzhou University, 100 Science Avenue, Zhengzhou, 450001, P. R. China
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5
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Wang H, Wu L, Xue B, Wang F, Luo Z, Zhang X, Calvez L, Fan P, Fan B. Improving Cycling Stability of the Lithium Anode by a Spin-Coated High-Purity Li 3PS 4 Artificial SEI Layer. ACS APPLIED MATERIALS & INTERFACES 2022; 14:15214-15224. [PMID: 35316015 DOI: 10.1021/acsami.1c25224] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Controlling the composition and microstructure of the solid electrolyte interphase (SEI) layer is critical to improving the cycling stability of the high-energy-density lithium-metal electrode. It is a quite tricky task to control the properties of the SEI layer which is conventionally formed by the chemical reactions between a Li metal and the additives. Herein, we develop a new route to synthesize a lithium-compatible sol of the sulfide electrolyte Li3PS4, so that a Li3PS4 artificial SEI layer with a controllable nanoscale thickness and high phase purity can be prepared by spin-coating. The layer stabilizes the lithium/electrolyte interface by homogenizing the Li-ion flux, preventing the parasitic reactions, and alleviating concentration polarization. Consequently, a symmetrical cell with the Li3PS4-modified lithium electrodes can achieve stable lithium plating/stripping for 800 h at a current density of 1 mA cm-2. The Li-S batteries assembled with the Li3PS4-protected Li anodes show better capacity retention than their bare Li counterparts, whose average decay rate from the 240th cycle to the 800th cycle is only 0.004%/cycle. In addition, the Li3PS4 layer improves the rate capacity of the batteries, significantly enhancing the capacity from 175 to 682 mA h g-1 at a 2 C rate. The spin-coated Li3PS4 artificial SEI layer provides a new strategy to develop high-performance Li metal batteries.
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Affiliation(s)
- Hongjiao Wang
- Shenzhen Key Laboratory of Advanced Thin Films and Applications, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, Guangdong, China
- Laboratory of Glasses and Ceramics, Institute of Chemical Science, University of Rennes 1, Rennes 35042, France
| | - Lilin Wu
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, Guangdong, China
| | - Bai Xue
- Shenzhen Key Laboratory of Advanced Thin Films and Applications, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, Guangdong, China
| | - Fang Wang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, Guangdong, China
| | - Zhongkuan Luo
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, Guangdong, China
| | - Xianghua Zhang
- Laboratory of Glasses and Ceramics, Institute of Chemical Science, University of Rennes 1, Rennes 35042, France
| | - Laurent Calvez
- Laboratory of Glasses and Ceramics, Institute of Chemical Science, University of Rennes 1, Rennes 35042, France
| | - Ping Fan
- Shenzhen Key Laboratory of Advanced Thin Films and Applications, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, Guangdong, China
| | - Bo Fan
- Shenzhen Key Laboratory of Advanced Thin Films and Applications, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, Guangdong, China
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6
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Park G, Park H, Seol W, Suh S, Kim J, Jo JY, Kim HJ. Diphenyl diselenide as a bifunctional electrolyte additive in a high-voltage LiNi0.8Mn0.1Co0.1O2/graphite battery. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.139984] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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7
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Wang X, Deng N, Wei L, Yang Q, Xiang H, Wang M, Cheng B, Kang W. Recent Progress in High-Performance Lithium Sulfur Batteries: The Emerging Strategies for Advanced Separators/Electrolytes Based on Nanomaterials and Corresponding Interfaces. Chem Asian J 2021; 16:2852-2870. [PMID: 34265166 DOI: 10.1002/asia.202100765] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Indexed: 01/15/2023]
Abstract
Lithium-sulfur (Li-S) batteries, possessing excellent theoretical capacities, low cost and nontoxicity, are one of the most promising energy storage battery systems. However, poor conductivity of elemental S and the "shuttle effect" of lithium polysulfides hinder the commercialization of Li-S batteries. These problems are closely related to the interface problems between the cathodes, separators/electrolytes and anodes. The review focuses on interface issues for advanced separators/electrolytes based on nanomaterials in Li-S batteries. In the liquid electrolyte systems, electrolytes/separators and electrodes system can be decorated by nano materials coating for separators and electrospinning nanofiber separators. And, interface of anodes and electrolytes/separators can be modified by nano surface coating, nano composite metal lithium and lithium nano alloy, while the interface between cathodes and electrolytes/separators is designed by nano metal sulfide, nanocarbon-based and other nano materials. In all solid-state electrolyte systems, the focus is to increase the ionic conductivity of the solid electrolytes and reduce the resistance in the cathode/polymer electrolyte and Li/electrolyte interfaces through using nanomaterials. The basic mechanism of these interface problems and the corresponding electrochemical performance are discussed. Based on the most critical factors of the interfaces, we provide some insights on nanomaterials in high-performance liquid or state Li-S batteries in the future.
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Affiliation(s)
- Xiaoxiao Wang
- State Key Laboratory of Separation Membranes and Membrane Processes, National Center for International Joint Research on Separation Membranes, Tiangong University, Tianjin, 300387, P. R. China
- School of Textile Science and Engineering, Tiangong University, Tianjin, 300387, P. R. China
| | - Nanping Deng
- State Key Laboratory of Separation Membranes and Membrane Processes, National Center for International Joint Research on Separation Membranes, Tiangong University, Tianjin, 300387, P. R. China
- School of Textile Science and Engineering, Tiangong University, Tianjin, 300387, P. R. China
| | - Liying Wei
- State Key Laboratory of Separation Membranes and Membrane Processes, National Center for International Joint Research on Separation Membranes, Tiangong University, Tianjin, 300387, P. R. China
- School of Textile Science and Engineering, Tiangong University, Tianjin, 300387, P. R. China
| | - Qi Yang
- State Key Laboratory of Separation Membranes and Membrane Processes, National Center for International Joint Research on Separation Membranes, Tiangong University, Tianjin, 300387, P. R. China
- School of Textile Science and Engineering, Tiangong University, Tianjin, 300387, P. R. China
| | - Hengying Xiang
- State Key Laboratory of Separation Membranes and Membrane Processes, National Center for International Joint Research on Separation Membranes, Tiangong University, Tianjin, 300387, P. R. China
- School of Textile Science and Engineering, Tiangong University, Tianjin, 300387, P. R. China
| | - Meng Wang
- State Key Laboratory of Separation Membranes and Membrane Processes, National Center for International Joint Research on Separation Membranes, Tiangong University, Tianjin, 300387, P. R. China
- School of Textile Science and Engineering, Tiangong University, Tianjin, 300387, P. R. China
| | - Bowen Cheng
- State Key Laboratory of Separation Membranes and Membrane Processes, National Center for International Joint Research on Separation Membranes, Tiangong University, Tianjin, 300387, P. R. China
| | - Weimin Kang
- State Key Laboratory of Separation Membranes and Membrane Processes, National Center for International Joint Research on Separation Membranes, Tiangong University, Tianjin, 300387, P. R. China
- School of Textile Science and Engineering, Tiangong University, Tianjin, 300387, P. R. China
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8
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Zhao M, Chen X, Li XY, Li BQ, Huang JQ. An Organodiselenide Comediator to Facilitate Sulfur Redox Kinetics in Lithium-Sulfur Batteries. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2007298. [PMID: 33586230 DOI: 10.1002/adma.202007298] [Citation(s) in RCA: 84] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Revised: 12/06/2020] [Indexed: 06/12/2023]
Abstract
Lithium-sulfur (Li-S) batteries are considered as promising next-generation energy storage devices due to their ultrahigh theoretical energy density, where soluble lithium polysulfides are crucial in the Li-S electrochemistry as intrinsic redox mediators. However, the poor mediation capability of the intrinsic polysulfide mediators leads to sluggish redox kinetics, further rendering limited rate performances, low discharge capacity, and rapid capacity decay. Here, an organodiselenide, diphenyl diselenide (DPDSe), is proposed to accelerate the sulfur redox kinetics as a redox comediator. DPDSe spontaneously reacts with lithium polysulfides to generate lithium phenylseleno polysulfides (LiPhSePSs) with improved redox mediation capability. The as-generated LiPhSePSs afford faster sulfur redox kinetics and increase the deposition dimension of lithium sulfide. Consequently, the DPDSe comediator endows Li-S batteries with superb rate performance of 817 mAh g-1 at 2 C and remarkable cycling stability with limited anode excess. Moreover, Li-S pouch cells with the DPDSe comediator achieve an actual initial energy density of 301 Wh kg-1 and 30 stable cycles. This work demonstrates a novel redox comediation strategy with an effective organodiselenide comediator to facilitate the sulfur redox kinetics under pouch cell conditions and inspires further exploration in mediating Li-S kinetics for practical high-energy-density batteries.
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Affiliation(s)
- Meng Zhao
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China
- Advanced Research Institute of Multidisciplinary Science, Beijing Institute of Technology, Beijing, 100081, China
| | - Xiang Chen
- Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
| | - Xi-Yao Li
- Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
| | - Bo-Quan Li
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China
- Advanced Research Institute of Multidisciplinary Science, Beijing Institute of Technology, Beijing, 100081, China
| | - Jia-Qi Huang
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China
- Advanced Research Institute of Multidisciplinary Science, Beijing Institute of Technology, Beijing, 100081, China
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9
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Wu XW, Cui SL, Liu S, Li GR, Gao XP. From Dendrites to Hemispheres: Changing Lithium Deposition by Highly Ordered Charge Transfer Channels. ACS APPLIED MATERIALS & INTERFACES 2021; 13:6249-6256. [PMID: 33504153 DOI: 10.1021/acsami.0c20099] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Metallic lithium as an anode is an ultimate ideal for rechargeable lithium batteries with high energy density such as lithium-oxygen batteries and lithium-sulfur batteries. However, the excess reactivity and asymmetrical dissolution-deposition of the metallic lithium anode make it impossible to support a stable long charge-discharge cycling. To protect the metallic lithium anode, apparently it needs to adjust the dissolution and deposition of lithium ions, but more essentially, it should reasonably change the distribution and transport of electrons on the surface and interface of the metallic lithium. In this work, anodic aluminum oxide (AAO) membranes are used to build highly ordered channels on the lithium anode surface in which lithium ions can transfer in the channels and electrons can be transported by the lithiation reaction of alumina with an oxygen vacancy-involved process. As a result, the cyclic reaction actually is partially transferred to the AAO surface, and lithium deposition occurs there as a hemispherical appearance but not as dendrites. Meanwhile, the highly ordered characteristics provide a physical effect to make the deposited lithium hemispheres a uniform distribution on the AAO surface. The AAO-regulated lithium anodes could be widely used to improve the cycling performance for metal lithium batteries.
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Affiliation(s)
- Xue-Wen Wu
- Institute of New Energy Material Chemistry, School of Materials Science and Engineering, Renewable Energy Conversion and Storage Center, Nankai University, Tianjin 300350, China
| | - Shao-Lun Cui
- Institute of New Energy Material Chemistry, School of Materials Science and Engineering, Renewable Energy Conversion and Storage Center, Nankai University, Tianjin 300350, China
| | - Sheng Liu
- Institute of New Energy Material Chemistry, School of Materials Science and Engineering, Renewable Energy Conversion and Storage Center, Nankai University, Tianjin 300350, China
| | - Guo-Ran Li
- Institute of New Energy Material Chemistry, School of Materials Science and Engineering, Renewable Energy Conversion and Storage Center, Nankai University, Tianjin 300350, China
| | - Xue-Ping Gao
- Institute of New Energy Material Chemistry, School of Materials Science and Engineering, Renewable Energy Conversion and Storage Center, Nankai University, Tianjin 300350, China
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10
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Li L, Dai H, Wang C. Electrolyte additives: Adding the stability of lithium metal anodes. NANO SELECT 2020. [DOI: 10.1002/nano.202000164] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Lulu Li
- School of Optical and Electronic Information Wuhan National Laboratory for Optoelectronics (WNLO) Huazhong University of Science and Technology Wuhan China
| | - Huichao Dai
- School of Optical and Electronic Information Wuhan National Laboratory for Optoelectronics (WNLO) Huazhong University of Science and Technology Wuhan China
- Material Science and Engineering College Northeast Forestry University Harbin China
| | - Chengliang Wang
- School of Optical and Electronic Information Wuhan National Laboratory for Optoelectronics (WNLO) Huazhong University of Science and Technology Wuhan China
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11
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Wu H, Wang L, Bi J, Li Y, Pang X, Li Z, Meng Q, Liu H, Wang L. Local Concentration Effect-Derived Heterogeneous Li 2S 2/Li 2S Deposition on Dual-Phase MWCNT/Cellulose Nanofiber/NiCo 2S 4 Self-Standing Paper for High Performance of Lithium Polysulfide Batteries. ACS APPLIED MATERIALS & INTERFACES 2020; 12:15228-15238. [PMID: 32159320 DOI: 10.1021/acsami.0c00618] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Lithium-sulfur (Li-S) batteries are highly attractive for their theoretical energy density and natural abundance, but the drawbacks of low sulfur utilization and rapid capacity fade in high-sulfur-loading cathodes still retard their practical use. To enhance kinetics in high-sulfur-loading Li-S cells, it is important to first understand and control the deposition of Li2S/Li2S from highly soluble lithium polysulfide (LiPS) during discharge processes. Here, we presented a series of multiphase-derived self-standing papers with diverse electronic conductivity and LiPS affinity for highly concentrated LiPS discharge processes and explained the Li2S/Li2S deposition behavior in detail. We demonstrated that high rate capacity and long cycle life of as-assembled paper-LiPS cathodes can be greatly depended on their phase material with high conductivity and LiPS affinity. A high-performance self-standing LiPS host-multiwalled carbon nanotube (MWCNT)/cellulose nanofiber (CNF)/NiCo2S4 (3.5 mg cm-2) can catalyze 2.85 mg cm-2 (based on sulfur) loaded LiPS to deliver a high specific capacity of 1154 mAh g-1 at 0.1C and a high rate performance of 963 mAh g-1 at 1C. We suggest that the insulating phase defect of nano-CNF and both highly electronic conductive (above 50 S cm-1) and LiPS adsorptive NiCo2S4 can promote the local concentration effect of LiPS, thus contributing to fast and stable heterogeneous particle-shaped deposition of Li2S2/Li2S and leading to high kinetics of the LiPS cathode.
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Affiliation(s)
- Haiwei Wu
- Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
- National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
| | - Li Wang
- Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
| | - Jingxuan Bi
- Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
| | - Yiyi Li
- Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
| | - Xiaofei Pang
- Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
| | - Zhijian Li
- Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
- National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
| | - Qingjun Meng
- Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
- National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
| | - Hanbin Liu
- Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
- National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
| | - Lei Wang
- School of Materials Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
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