High-conductivity 1T-MoS2 catalysts anchored on a carbon fiber cloth for high-performance lithium–sulfur batteries

2021 ◽  
Author(s):  
Dongli Chen ◽  
Wenwei Zhan ◽  
Xue Fu ◽  
Ming Zhu ◽  
Jinle Lan ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Reaction Kinetics ◽  
High Performance ◽  
Low Cost ◽  
Shuttle Effect ◽  
Carbon Fiber Cloth ◽  
Lithium Sulfur Batteries ◽  
High Theoretical Capacity ◽  
Mos2 Catalysts ◽  
Lithium Sulfur

Lithium–sulfur (Li–S) batteries with high theoretical capacity and low cost are challenged by the polysulfide shuttle effect and sluggish reaction kinetics.

ZIF-8 derived hollow carbon to trap polysulfides for high performance lithium-sulfur batteries.

Nanoscale ◽  
2021 ◽  
Author(s):  
Md Masud Rana ◽  
Yusuke Yamauchi ◽  
Ian Gentle ◽  
Md. Shahriar A. Hossain ◽  
Mohammad Rejaul Kaiser ◽  
...  
Keyword(s):  
Energy Density ◽  
High Performance ◽  
Low Cost ◽  
Shuttle Effect ◽  
Lithium Sulfur Batteries ◽  
Solid Discharge ◽  
Discharge Product ◽  
Hollow Carbon ◽  
Lithium Sulfur

Lithium-sulfur batteries (LSBs) have been considered very promising due to their high theoretical energy density and low cost. However, the undesirable shuttle effect with solid discharge product Li2S, greatly impedes...

scholarly journals Lignin Nanoparticle-Coated Celgard Separator for High-Performance Lithium–Sulfur Batteries

Polymers ◽  
2019 ◽  
Vol 11 (12) ◽  
pp. 1946 ◽  
Author(s):  
Zengyao Zhang ◽  
Shun Yi ◽  
Yuejia Wei ◽  
Huiyang Bian ◽  
Ruibin Wang ◽  
...  
Keyword(s):  
High Performance ◽  
Low Cost ◽  
Electronic Devices ◽  
Shuttle Effect ◽  
Lithium Sulfur Batteries ◽  
Increasing Demand ◽  
Electron Donating Groups ◽  
Sulfur Containing ◽  
A Current ◽  
Lithium Sulfur

Tremendous efforts have been made toward the development of lithium–sulfur (Li–S) batteries as one of the most reasonable solutions to the rapidly increasing demand for portable electronic devices and electric vehicles, owing to their high cost-efficiency and theoretical energy density. However, the shuttle effect caused by soluble polysulfides is generally considered to be an insurmountable challenge, which can significantly reduce the battery lifecycle and sulfur utilization. Here, we report a lignin nanoparticle-coated Celgard (LC) separator to alleviate this problem. The LC separator enables abundant electron-donating groups and is expected to induce chemical binding of polysulfides to hinder the shuttle effect. When a sulfur-containing commercially available acetylene black (approximately 73.8 wt% sulfur content) was used as the cathode without modification, the Li–S battery with the LC separator presented much enhanced cycling stability over that with the Celgard separator for over 500 cycles at a current density of 1 C. The strategy demonstrated in this study is expected to provide more possibilities for the utilization of low-cost biomass-derived nanomaterials as separators for high-performance Li–S batteries.

Metastable marcasite NiSe2 nanodendrites on carbon fiber clothes to suppress polysulfide shuttling for high-performance lithium-sulfur batteries

Nanoscale ◽  
2021 ◽  
Author(s):  
Jingwen Wang ◽  
Shoufu Cao ◽  
Likun Yang ◽  
Yan Zhang ◽  
Kun Xing ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Reaction Kinetics ◽  
Redox Reaction ◽  
High Performance ◽  
Promising Strategy ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

Incorporation of catalytic component is a promising strategy to promote the redox reaction kinetics and suppress the polysulfide shuttling for high-performance lithium-sulfur batteries (LSBs). In this work, metastable marcasite NiSe2...

Three-in-one cathode host based on Nb3O8/graphene superlattice heterostructures for high-performance Li–S batteries

2021 ◽  
Author(s):  
Chenhui WANG ◽  
Nobuyuki Sakai ◽  
Yasuo Ebina ◽  
Takayuki KIKUCHI ◽  
Monika Snowdon ◽  
...  
Keyword(s):  
Energy Storage ◽  
High Performance ◽  
Next Generation ◽  
Shuttle Effect ◽  
Lithium Sulfur Batteries ◽  
Graphene Superlattice ◽  
Lithium Sulfur

Lithium-sulfur batteries have high promise for application in next-generation energy storage. However, further advances have been hindered by various intractable challenges, particularly three notorious problems: the “shuttle effect”, sluggish kinetics...

A robust and low-cost biomass carbon fiber@SiO2 interlayer for reliable lithium-sulfur batteries

2019 ◽  
Vol 295 ◽  
pp. 684-692 ◽  
Author(s):  
Tao Liu ◽  
Xiaolin Sun ◽  
Shimei Sun ◽  
Quanhai Niu ◽  
Hui Liu ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Low Cost ◽  
Biomass Carbon ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

scholarly journals Co-W Bimetallic Carbides as Sulfur Host for High-Performance Lithium–Sulfur Batteries

2021 ◽  
Author(s):  
Dongke Zhang ◽  
Ting Huang ◽  
Pengfei Zhao ◽  
Ze Zhang ◽  
Xingtao Qi ◽  
...  
Keyword(s):  
High Performance ◽  
Conductive Network ◽  
Rate Performance ◽  
Cycle Stability ◽  
Sulfur Cathode ◽  
Shuttle Effect ◽  
Lithium Sulfur Batteries ◽  
Sulfur Host ◽  
Lithium Sulfur ◽  
Excellent Stability

Abstract Due to the low conductivity of sulfur and the dissolution of polysulfides, the research and application of lithium-sulfur (Li-S) batteries have encountered certain resistance. Increasing conductivity and introducing polarity into the sulfur host can effectively overcome these long-standing problems. Herein, We first prepared Co3W3C@ C@ CNTs / S material and used it in the cathode of lithium-sulfur batteries, The existence of carboxylated CNTs can form a conductive network, accelerate the transmission of electrons and improve the rate performance, and polar Co3W3C can form a strong interaction with polysulfide intermediates, effectively inhibiting its shuttle effect, improving the utilization of sulfur cathode electrodes, and improving the capacity and cycle stability. The Co3W3C@C@CNTs / S electrode material has a capacity of 1,093 mA h g-1 at a 0.1 A g− 1 and 482 mA h g-1 at 5 A g− 1. Even after 500 cycles of 2 A g− 1, the capacity of each cycle is only reduced by 0.08%. The excellent stability of this material can provide a new idea for the future development of lithium-sulfur batteries.

Gel Polymer Electrolyte Based on Methyl Methacrylate for Lithium-Sulfur Batteries

2021 ◽  
Vol 105 (1) ◽  
pp. 239-245
Author(s):  
Iuliia Veselkova ◽  
Kamil Jasso ◽  
Tomas Kazda ◽  
Marie Sedlaříková
Keyword(s):  
Methyl Methacrylate ◽  
Polymer Electrolyte ◽  
Low Cost ◽  
Gel Polymer Electrolyte ◽  
Cross Link ◽  
Shuttle Effect ◽  
Lithium Sulfur Batteries ◽  
High Specific Energy ◽  
Lithium Sulfur ◽  
High Electric Conductivity

Lithium-sulfur batteries are next-generation battery systems with low cost and high specific energy. However, it is necessary to solve several deficiencies of these batteries such as shuttle effect, and gel polymer electrolyte is a great candidate. These perspective materials can be used as a replacement for liquid electrolytes, and at the same time, they can help to solve the problems of lithium-sulfur batteries. In this work, gel polymer electrolyte (GPE) based on methyl methacrylate was prepared by cross-linking strategy. As cross-link ethylene glycol dimethacrylate (EDMA) was used. Prepared gel with a high electric conductivity was testing in the lithium-sulfur cell (Li/GPE/S). The electrochemical performance of the cell was studied.

scholarly journals MnO2/rGO/CNTs Framework as a Sulfur Host for High-Performance Li-S Batteries

Molecules ◽  
2020 ◽  
Vol 25 (8) ◽  
pp. 1989 ◽  
Author(s):  
Wei Dong ◽  
Lingqiang Meng ◽  
Xiaodong Hong ◽  
Sizhe Liu ◽  
Ding Shen ◽  
...  
Keyword(s):  
High Performance ◽  
Physical Adsorption ◽  
Rapid Development ◽  
Electronic Conductivity ◽  
Specific Capacity ◽  
Framework Structure ◽  
Shuttle Effect ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur ◽  
Initial Capacity

Lithium-sulfur batteries are very promising next-generation energy storage batteries due to their high theoretical specific capacity. However, the shuttle effect of lithium-sulfur batteries is one of the important bottlenecks that limits its rapid development. Herein, physical and chemical dual adsorption of lithium polysulfides are achieved by designing a novel framework structure consisting of MnO2, reduced graphene oxide (rGO), and carbon nanotubes (CNTs). The framework-structure composite of MnO2/rGO/CNTs is prepared by a simple hydrothermal method. The framework exhibits a uniform and abundant mesoporous structure (concentrating in ~12 nm). MnO2 is an α phase structure and the α-MnO2 also has a significant effect on the adsorption of lithium polysulfides. The rGO and CNTs provide a good physical adsorption interaction and good electronic conductivity for the dissolved polysulfides. As a result, the MnO2/rGO/CNTs/S cathode delivered a high initial capacity of 1201 mAh g−1 at 0.2 C. The average capacities were 916 mAh g−1, 736 mAh g−1, and 547 mAh g−1 at the current densities of 0.5 C, 1 C, and 2 C, respectively. In addition, when tested at 0.5 C, the MnO2/rGO/CNTs/S exhibited a high initial capacity of 1010 mAh g−1 and achieved 780 mAh g−1 after 200 cycles, with a low capacity decay rate of 0.11% per cycle. This framework-structure composite provides a simple way to improve the electrochemical performance of Li-S batteries.

An acetylene black modified gel polymer electrolyte for high-performance lithium–sulfur batteries

2019 ◽  
Vol 7 (22) ◽  
pp. 13679-13686 ◽  
Author(s):  
Dezhi Yang ◽  
Liang He ◽  
Yu Liu ◽  
Wenqi Yan ◽  
Shishuo Liang ◽  
...  
Keyword(s):  
Polymer Electrolyte ◽  
High Performance ◽  
Gel Polymer Electrolyte ◽  
Dendrite Growth ◽  
Acetylene Black ◽  
Shuttle Effect ◽  
Lithium Sulfur Batteries ◽  
Lithium Dendrite ◽  
Lithium Sulfur

An acetylene black modified gel polymer electrolyte was prepared to simultaneously solve the problems of shuttle effect and lithium dendrite growth for high-performance Li–S batteries.

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