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Kim JH, Kim M, Kim SJ, Kim SY, Yu S, Hwang W, Kwon E, Lim JH, Kim SH, Sung YE, Yu SH. Understanding the electrochemical processes of SeS 2 positive electrodes for developing high-performance non-aqueous lithium sulfur batteries. Nat Commun 2024; 15:7669. [PMID: 39227369 PMCID: PMC11371820 DOI: 10.1038/s41467-024-51647-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Accepted: 08/12/2024] [Indexed: 09/05/2024] Open
Abstract
SeS2 positive electrodes are promising components for the development of high-energy, non-aqueous lithium sulfur batteries. However, the (electro)chemical and structural evolution of this class of positive electrodes is not yet fully understood. Here, we use operando physicochemical measurements to elucidate the dissolution and deposition processes in the SeS2 positive electrodes during lithium sulfur cell charge and discharge. Our analysis of real-time imaging reveals the pivotal role of Se in the SeS2 nucleation process, while S enables selective depositions. During the initial discharge, SeS2 converts into Se and S separately, with the dissolved Se acting as nucleation sites due to their lower nucleation potential. The Se effectively catalyzes the growth of S particles, resulting in improved lithium sulfur battery performance compared to cells using positive electrodes containing only Se or S as active materials. By adjusting the Se-to-S ratio, we demonstrate that a low concentration of Se enables uniform catalytic sites, promotes the homogeneous distribution of S and favours improved lithium sulfur battery performance.
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Affiliation(s)
- Ji Hwan Kim
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul, Republic of Korea
- School of Chemical and Biological Engineering, Seoul National University, Seoul, Republic of Korea
| | - Mihyun Kim
- Department of Chemical and Biological Engineering, Korea University, Seoul, Republic of Korea
| | - Seong-Jun Kim
- School of Chemical and Biological Engineering, Seoul National University, Seoul, Republic of Korea
- Department of Chemical and Biological Engineering, Korea University, Seoul, Republic of Korea
| | - Shin-Yeong Kim
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul, Republic of Korea
- School of Chemical and Biological Engineering, Seoul National University, Seoul, Republic of Korea
| | - Seungho Yu
- Energy Storage Research Center, Korea Institute of Science and Technology, Seoul, Republic of Korea
- Division of Energy & Environment Technology, KIST School, Korea University of Science and Technology, Seoul, Republic of Korea
| | - Wonchan Hwang
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul, Republic of Korea
- School of Chemical and Biological Engineering, Seoul National University, Seoul, Republic of Korea
| | - Eunji Kwon
- Department of Chemical and Biological Engineering, Korea University, Seoul, Republic of Korea
- Energy Storage Research Center, Korea Institute of Science and Technology, Seoul, Republic of Korea
| | - Jae-Hong Lim
- Pohang Accelerator Laboratory, POSTECH, Pohang, Republic of Korea
| | - So Hee Kim
- Advanced Analysis Center, Korea Institute of Science and Technology, Seoul, Republic of Korea
| | - Yung-Eun Sung
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul, Republic of Korea.
- School of Chemical and Biological Engineering, Seoul National University, Seoul, Republic of Korea.
| | - Seung-Ho Yu
- Department of Chemical and Biological Engineering, Korea University, Seoul, Republic of Korea.
- Department of Battery-Smart Factory, Korea University, Seoul, Republic of Korea.
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Zeng C, Feng W, Shi Y, Zhang X, Yang Y, Zheng X, Liu Z, Liu Y, Gao M, Liang C, Pan H. In Situ Fabrication of High Ionic and Electronic Conductivity Interlayers Enabling Long-Life Garnet-Based Solid-State Lithium Batteries. ACS APPLIED MATERIALS & INTERFACES 2024; 16:30462-30470. [PMID: 38830131 DOI: 10.1021/acsami.3c19215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2024]
Abstract
Garnet-type Li6.75La3Zr1.75Ta0.25O12 (LLZTO) is a promising solid-state electrolyte (SSE) because of its fast ionic conduction and notable chemical/electrochemical stability toward the lithium (Li) metal. However, poor interface wettability and large interface resistance between LLZTO and Li anode greatly restrict its practical applications. In this work, we develop an in situ chemical conversion strategy to construct a highly conductive Li2S@C layer on the surface of LLZTO, enabling improved interfacial wettability between LLZTO and the Li anode. The Li/Li2S@C-LLZTO-Li2S@C/Li symmetric cell has a low interface impedance of 78.5 Ω cm2, much lower than the 970 Ω cm2 of a Li/LLZTO/Li cell. Moreover, the Li/Li2S@C-LLZTO-Li2S@C/Li cell exhibits a high critical current density of 1.4 mA cm-2 and an ultralong stability of 3000 h at 0.1 mA cm-2. When used in a LiFePO4 battery, the Li/Li2S@C-LLZTO/LiFePO4 battery exhibits a high initial discharge capacity of 150.8 mA h g-1 at 0.2 C without lithium storage capacity attenuation during 200 cycles. This work provides a novel and feasible strategy to address interface issues of SSEs and achieve lithium-dendrite-free solid-state batteries.
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Affiliation(s)
- Chengfu Zeng
- Zhejiang Carbon Neutral Innovation Institute & Zhejiang International Cooperation Base for Science and Technology on Carbon Emission Reduction and Monitoring, Zhejiang University of Technology, Hangzhou 310014, China
- Moganshan Institute of ZJUT at Deqing, Huzhou 313200, China
| | - Wen Feng
- Zhejiang Carbon Neutral Innovation Institute & Zhejiang International Cooperation Base for Science and Technology on Carbon Emission Reduction and Monitoring, Zhejiang University of Technology, Hangzhou 310014, China
| | - Yu Shi
- Zhejiang Carbon Neutral Innovation Institute & Zhejiang International Cooperation Base for Science and Technology on Carbon Emission Reduction and Monitoring, Zhejiang University of Technology, Hangzhou 310014, China
- Moganshan Institute of ZJUT at Deqing, Huzhou 313200, China
| | - Xiaoyu Zhang
- Zhejiang Carbon Neutral Innovation Institute & Zhejiang International Cooperation Base for Science and Technology on Carbon Emission Reduction and Monitoring, Zhejiang University of Technology, Hangzhou 310014, China
- Moganshan Institute of ZJUT at Deqing, Huzhou 313200, China
| | - Yaxiong Yang
- Institute of Science and Technology for New Energy, Xi'an Technological University, Xi'an 710021, China
| | - Xiaohua Zheng
- Zhejiang Carbon Neutral Innovation Institute & Zhejiang International Cooperation Base for Science and Technology on Carbon Emission Reduction and Monitoring, Zhejiang University of Technology, Hangzhou 310014, China
| | - Zhihe Liu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore
| | - Yanxia Liu
- Institute of Science and Technology for New Energy, Xi'an Technological University, Xi'an 710021, China
| | - Mingxia Gao
- Zhejiang Carbon Neutral Innovation Institute & Zhejiang International Cooperation Base for Science and Technology on Carbon Emission Reduction and Monitoring, Zhejiang University of Technology, Hangzhou 310014, China
- Moganshan Institute of ZJUT at Deqing, Huzhou 313200, China
- School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Chu Liang
- Zhejiang Carbon Neutral Innovation Institute & Zhejiang International Cooperation Base for Science and Technology on Carbon Emission Reduction and Monitoring, Zhejiang University of Technology, Hangzhou 310014, China
- Moganshan Institute of ZJUT at Deqing, Huzhou 313200, China
| | - Hongge Pan
- Zhejiang Carbon Neutral Innovation Institute & Zhejiang International Cooperation Base for Science and Technology on Carbon Emission Reduction and Monitoring, Zhejiang University of Technology, Hangzhou 310014, China
- Moganshan Institute of ZJUT at Deqing, Huzhou 313200, China
- Institute of Science and Technology for New Energy, Xi'an Technological University, Xi'an 710021, China
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Yan C, Yi J, Li D, Xu C, Cheng L. FeP 2 monolayer: isoelectronic analogue of MoS 2 with excellent electronic and optical properties. Phys Chem Chem Phys 2022; 24:13376-13383. [PMID: 35608177 DOI: 10.1039/d2cp01057g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two-dimensional semiconductors with suitable indirect band gaps, excellent light absorption capacity, and oxidation resistance are particularly suitable for material applications. Here based on first-principle calculations, we report that the FeP2 monolayer, which is isoelectronic with MoS2, has novel electronic properties and an ultra-low diffusion energy barrier of K on the surface, indicating its potential as an anode material of K-ion batteries. The calculated phonon dispersion curves, molecular dynamics, and elastic constants showed that it has high structural stability and oxidation resistance. The monolayer was a semiconductor with an indirect band gap of 0.68 eV. In addition, the FeP2 monolayer had obvious light absorption in the infrared, visible, and ultraviolet regions, which can be widely used in optoelectronic devices. Bonding analysis showed that there were multicenter bonds inside every hexagonal ring. As the anode material of K-ion batteries, the FeP2 monolayer had a capacity of 456.84 mA h g-1, low diffusion energy barrier, and open-circuit voltage. All these characteristics suggest that the FeP2 monolayer is a potential anode material for K-ion batteries, which needs to be further verified by experiments.
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Affiliation(s)
- Chen Yan
- Department of Chemistry, Key Laboratory of Functional Inorganic Materials of Anhui Province, Anhui University, Hefei, Anhui 230601, P. R. China.
| | - Jiuqi Yi
- Department of Chemistry, Key Laboratory of Functional Inorganic Materials of Anhui Province, Anhui University, Hefei, Anhui 230601, P. R. China.
| | - Dan Li
- Department of Chemistry, Key Laboratory of Functional Inorganic Materials of Anhui Province, Anhui University, Hefei, Anhui 230601, P. R. China.
| | - Chang Xu
- Department of Chemistry, Key Laboratory of Functional Inorganic Materials of Anhui Province, Anhui University, Hefei, Anhui 230601, P. R. China.
| | - Longjiu Cheng
- Department of Chemistry, Key Laboratory of Functional Inorganic Materials of Anhui Province, Anhui University, Hefei, Anhui 230601, P. R. China. .,Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University), Ministry of Education, Hefei, 230601, P. R. China
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Nguyen DK, Guerrero-Sanchez J, Hoat DM. Introducing the 1H-Na 2S monolayer as a new direct gap semiconductor with feature-rich electronic and magnetic properties. Phys Chem Chem Phys 2022; 24:27505-27514. [DOI: 10.1039/d2cp04613j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
(a) Planar average potential (inset: Bader charge analysis) and (b) electronic localization function (iso-surface value: 0.85) of the Na2S monolayer.
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Affiliation(s)
- Duy Khanh Nguyen
- High-Performance Computing Lab (HPC Lab), Information Technology Center, Thu Dau Mot University, Binh Duong Province, Vietnam
| | - J. Guerrero-Sanchez
- Universidad Nacional Autónoma de México, Centro de Nanociencias y Nanotecnología, Apartado Postal 14, Ensenada, Baja California, 22800, Mexico
| | - D. M. Hoat
- Institute of Theoretical and Applied Research, Duy Tan University, Ha Noi 100000, Vietnam
- Faculty of Natural Sciences, Duy Tan University, Da Nang 550000, Vietnam
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Hoat D, Tarawneh OH, Alsariera YA, Salehi K, Ezzeldien M, Naseri M. Strain tunable electronic and optical properties of 2D orthorhombic lithium sulfur monolayer. Chem Phys 2020. [DOI: 10.1016/j.chemphys.2020.110762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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