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Wu L, Hu Y, Chen Z, Cai C, Cai C, Mei T, Lin L, Wang X. Oxygen vacancies engineering in hollow and porous MnCo2O4 nanoflowers-coated separators for advanced Li-S batteries. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.141185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Wang H, Wei Y, Wang G, Pu Y, Yuan L, Liu C, Wang Q, Zhang Y, Wu H. Selective Nitridation Crafted a High-Density, Carbon-Free Heterostructure Host with Built-In Electric Field for Enhanced Energy Density Li-S Batteries. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2201823. [PMID: 35712758 PMCID: PMC9376747 DOI: 10.1002/advs.202201823] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 04/29/2022] [Indexed: 06/15/2023]
Abstract
To achieve both high gravimetric and volumetric energy densities of lithium-sulfur (Li-S) batteries, it is essential yet challenging to develop low-porosity dense electrodes along with diminishment of the electrolyte and other lightweight inactive components. Herein, a compact TiO2 @VN heterostructure with high true density (5.01 g cm-3 ) is proposed crafted by ingenious selective nitridation, serving as carbon-free dual-capable hosts for both sulfur and lithium. As a heavy S host, the interface-engineered heterostructure integrates adsorptive TiO2 with high conductive VN and concurrently yields a built-in electric field for charge-redistribution at the TiO2 /VN interfaces with enlarged active locations for trapping-migration-conversion of polysulfides. Thus-fabricated TiO2 @VN-S composite harnessing high tap-density favors constructing dense cathodes (≈1.7 g cm-3 ) with low porosity (<30 vol%), exhibiting dual-boosted cathode-level peak volumetric-/gravimetric-energy-densities nearly 1700 Wh L-1 cathode /1000 Wh kg-1 cathode at sulfur loading of 4.2 mg cm-2 and prominent areal capacity (6.7 mAh cm-2 ) at 7.6 mg cm-2 with reduced electrolyte (<10 µL mg-1 sulfur ). Particular lithiophilicity of the TiO2 @VN is demonstrated as Li host to uniformly tune Li nucleation with restrained dendrite growth, consequently bestowing the assembled full-cell with high electrode-level volumetric/gravimetric-energy-density beyond 950 Wh L-1 cathode+anode /560 Wh kg-1 cathode+anode at 3.6 mg cm-2 sulfur loading alongside limited lithium excess (≈50%).
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Affiliation(s)
- Hongmei Wang
- Engineering Research Center of Alternative Energy Materials & DevicesMinistry of EducationCollege of Materials Science and EngineeringSichuan UniversityChengduSichuan610065China
| | - Yunhong Wei
- Hefei National Laboratory for Physical Sciences at the MicroscaleDepartment of Applied ChemistryUniversity of Science and Technology of ChinaHefei230026China
| | - Guochuan Wang
- Engineering Research Center of Alternative Energy Materials & DevicesMinistry of EducationCollege of Materials Science and EngineeringSichuan UniversityChengduSichuan610065China
| | - Yiran Pu
- Engineering Research Center of Alternative Energy Materials & DevicesMinistry of EducationCollege of Materials Science and EngineeringSichuan UniversityChengduSichuan610065China
| | - Li Yuan
- Engineering Research Center of Alternative Energy Materials & DevicesMinistry of EducationCollege of Materials Science and EngineeringSichuan UniversityChengduSichuan610065China
| | - Can Liu
- Engineering Research Center of Alternative Energy Materials & DevicesMinistry of EducationCollege of Materials Science and EngineeringSichuan UniversityChengduSichuan610065China
| | - Qian Wang
- Engineering Research Center of Alternative Energy Materials & DevicesMinistry of EducationCollege of Materials Science and EngineeringSichuan UniversityChengduSichuan610065China
| | - Yun Zhang
- Engineering Research Center of Alternative Energy Materials & DevicesMinistry of EducationCollege of Materials Science and EngineeringSichuan UniversityChengduSichuan610065China
| | - Hao Wu
- Engineering Research Center of Alternative Energy Materials & DevicesMinistry of EducationCollege of Materials Science and EngineeringSichuan UniversityChengduSichuan610065China
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Kim E, Lee AS, Lee T, Seo HJ, Chae S, Kim K, Park JW, Lee SG, Lee JH. Organic Dye-Derived N, S Co-Doped Porous Carbon Hosts for Effective Lithium Polysulfide Confinement in Lithium-Sulfur Batteries. NANOMATERIALS 2021; 11:nano11112954. [PMID: 34835718 PMCID: PMC8624343 DOI: 10.3390/nano11112954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 10/31/2021] [Accepted: 11/02/2021] [Indexed: 11/26/2022]
Abstract
Lithium–sulfur batteries are considered as attractive candidates for next-generation energy storage systems originating from their high theoretical capacity and energy density. However, the severe shuttling of behavior caused by the dissolution of lithium polysulfide intermediates during cycling remains a challenge for practical applications. Herein, porous carbon materials co-doped with nitrogen and sulfur atoms were prepared through a facile hydrothermal reaction of graphene oxide and methylene blue to obtain a suitable host structure for regulating the lithium polysulfide shuttling behavior. Experimental results demonstrated that the abundant heteroatom-containing moieties in the carbon frameworks not only generated favorable active sites for capturing lithium polysulfide but also enhanced redox reaction kinetics of lithium polysulfide intermediates. Consequently, the corresponding sulfur composite electrodes exhibited excellent rate performance and cycling stability along with high Columbic efficiency. This work highlights the approach for the preparation of nitrogen and sulfur co-doped carbon materials derived from organic dye compounds for high performance energy storage systems.
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Affiliation(s)
- Eunji Kim
- School of Chemical Engineering, Pusan National University, Busan 46421, Korea; (E.K.); (T.L.); (H.J.S.); (S.C.)
| | - Albert S. Lee
- Materials Architecturing Research Center, Korea Institute of Science and Technology, Seoul 02792, Korea;
| | - Taewoong Lee
- School of Chemical Engineering, Pusan National University, Busan 46421, Korea; (E.K.); (T.L.); (H.J.S.); (S.C.)
| | - Hyeok Jun Seo
- School of Chemical Engineering, Pusan National University, Busan 46421, Korea; (E.K.); (T.L.); (H.J.S.); (S.C.)
| | - Seongwook Chae
- School of Chemical Engineering, Pusan National University, Busan 46421, Korea; (E.K.); (T.L.); (H.J.S.); (S.C.)
| | - Kihyun Kim
- Department of Materials Engineering and Convergence Technology, Gyeongsang National University, Jinju 52828, Korea
- Correspondence: (K.K.); (J.-W.P.); (S.G.L.); (J.H.L.)
| | - Jun-Woo Park
- Next Generation Battery Research Center, Korea Electrotechnology Research Institute (KERI), Changwon 51543, Korea
- Correspondence: (K.K.); (J.-W.P.); (S.G.L.); (J.H.L.)
| | - Seung Geol Lee
- School of Chemical Engineering, Pusan National University, Busan 46421, Korea; (E.K.); (T.L.); (H.J.S.); (S.C.)
- Correspondence: (K.K.); (J.-W.P.); (S.G.L.); (J.H.L.)
| | - Jin Hong Lee
- School of Chemical Engineering, Pusan National University, Busan 46421, Korea; (E.K.); (T.L.); (H.J.S.); (S.C.)
- Correspondence: (K.K.); (J.-W.P.); (S.G.L.); (J.H.L.)
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Saroha R, Ahn JH, Cho JS. A short review on dissolved lithium polysulfide catholytes for advanced lithium-sulfur batteries. KOREAN J CHEM ENG 2021. [DOI: 10.1007/s11814-020-0729-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Liu YT, Liu S, Li GR, Gao XP. Strategy of Enhancing the Volumetric Energy Density for Lithium-Sulfur Batteries. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2003955. [PMID: 33368710 DOI: 10.1002/adma.202003955] [Citation(s) in RCA: 66] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 09/18/2020] [Indexed: 05/11/2023]
Abstract
Lithium-sulfur (Li-S) batteries hold the promise of the next generation energy storage system beyond state-of-the-art lithium-ion batteries. Despite the attractive gravimetric energy density (WG ), the volumetric energy density (WV ) still remains a great challenge for the practical application, based on the primary requirement of Small and Light for Li-S batteries. This review highlights the importance of cathode density, sulfur content, electroactivity in achieving high energy densities. In the first part, key factors are analyzed in a model on negative/positive ratio, cathode design, and electrolyte/sulfur ratio, orientated toward energy densities of 700 Wh L-1 /500 Wh kg-1 . Subsequently, recent progresses on enhancing WV for coin/pouch cells are reviewed primarily on cathode. Especially, the "Three High One Low" (THOL) (high sulfur fraction, high sulfur loading, high density host, and low electrolyte quantity) is proposed as a feasible strategy for achieving high WV , taking high WG into consideration simultaneously. Meanwhile, host materials with desired catalytic activity should be paid more attention for fabricating high performance cathode. In the last part, key engineering technologies on manipulating the cathode porosity/density are discussed, including calendering and dry electrode coating. Finally, a future outlook is provided for enhancing both WV and WG of the Li-S batteries.
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Affiliation(s)
- Ya-Tao Liu
- 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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Shi T, Zhao C, Yin C, Yin H, Song C, Qin L, Wang Z, Shao H, Yu K. Incorporation ZnS quantum dots into carbon nanotubes for high-performance lithium-sulfur batteries. NANOTECHNOLOGY 2020; 31:495406. [PMID: 32990275 DOI: 10.1088/1361-6528/abb490] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Constructing sulfur hosts with high electronic conductivity, large void space, strong chemisorption, and rapid redox kinetics is critically important for their practical applications in lithium-sulfur batteries (LSBs). Herein, by coupling ZnS quantum dots (QDs) with carbon nanotubes (CNTs), one multifunctional sulfur host CNT/ZnS-QDs is designed via a facile one-step hydrothermal method. SEM and TEM analyses reveal that small ZnS-QDs (<5 nm) are uniformly anchored on the CNT surface as well as encapsulated into CNT channels. This special architecture ensures sulfur direct contacting with highly conductive CNTs; meanwhile, the catalytic effect of anchored ZnS-QDs improves the chemisorption and confinement to polysulfides. Benefiting from these merits, when used as sulfur hosts, this special architecture manifests a high specific capacity, superior rate capability, and long-term cycling stability. The ZnS-QDs dependent electrochemical performance is also evaluated by adjusting the mass ratio of ZnS-QDs, and the host of CNT/ZnS-QDs 27% owns the optimal cell performance. The specific capacity decreases from 1051 mAh g-1 at 0.2 C to 544 mAh g-1 at 2.0 C, showing rate capability much higher than CNT/S and other CNT/ZnS-QDs/S samples. After 150 cycles, the cyclic capacity at 0.5 C exhibits a slow reduction from 1051 mAh g-1 to 771 mAh g-1, showing a high retention of 73.4% with a coulombic efficiency of over 99%. The electrochemical impedance spectroscopy analyses demonstrate that this special architecture juggles high conductivity and excellent confinement of polysulfides, which can significantly suppress the notorious shuttle effect and accelerate the redox kinetics. The strategy in this study provides a feasible approach to design efficient sulfur hosts for realizing practically usable LSBs.
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Affiliation(s)
- Tianyu Shi
- School of Information Science and Technology, Nantong University, Nantong 226019, People's Republic of China
| | - Chenyuan Zhao
- School of Information Science and Technology, Nantong University, Nantong 226019, People's Republic of China
| | - Chuan Yin
- School of Information Science and Technology, Nantong University, Nantong 226019, People's Republic of China
| | - Haihong Yin
- School of Information Science and Technology, Nantong University, Nantong 226019, People's Republic of China
| | | | - Lin Qin
- School of Information Science and Technology, Nantong University, Nantong 226019, People's Republic of China
| | - Zhiliang Wang
- School of Information Science and Technology, Nantong University, Nantong 226019, People's Republic of China
| | - Haibao Shao
- School of Information Science and Technology, Nantong University, Nantong 226019, People's Republic of China
| | - Ke Yu
- Key Laboratory of Polar Materials and Devices, Department of Optoelectronics, East China Normal University, Shanghai 200241, People's Republic of China
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Abstract
A review with 132 references. Societal and regulatory pressures are pushing industry towards more sustainable energy sources, such as solar and wind power, while the growing popularity of portable cordless electronic devices continues. These trends necessitate the ability to store large amounts of power efficiently in rechargeable batteries that should also be affordable and long-lasting. Lithium-sulfur (Li-S) batteries have recently gained renewed interest for their potential low cost and high energy density, potentially over 2600 Wh kg−1. The current review will detail the most recent advances in early 2020. The focus will be on reports published since the last review on Li-S batteries. This review is meant to be helpful for beginners as well as useful for those doing research in the field, and will delineate some of the cutting-edge adaptations of many avenues that are being pursued to improve the performance and safety of Li-S batteries.
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