scholarly journals Synergy between Interconnected Porous Carbon-Sulfur Cathode and Metallic MgB2 Interlayer as a Lithium Polysulfide Immobilizer for High-Performance Lithium-Sulfur Batteries

ACS Omega ◽  
2020 ◽  
Vol 5 (35) ◽  
pp. 22379-22388
Author(s):  
Meenakshi Seshadhri Garapati ◽  
Ramaprabhu Sundara
Keyword(s):  
Porous Carbon ◽  
High Performance ◽  
Sulfur Cathode ◽  
Lithium Polysulfide ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

Cubic MnSe2 microcube enabling high-performance sulfur cathode for lithium-sulfur batteries

2021 ◽  
Author(s):  
Jian Bao ◽  
Xin-Yang Yue ◽  
Rui-Jie Luo ◽  
Yong-Ning Zhou
Keyword(s):  
Strong Interaction ◽  
High Performance ◽  
Sulfur Cathode ◽  
Shuttle Effect ◽  
Lithium Polysulfide ◽  
Lithium Sulfur Batteries ◽  
Sulfur Cathodes ◽  
Lithium Sulfur

Cubic MnSe2 microcubes are introduced into sulfur cathodes to prevent the shuttle effect of lithium polysulfide through binding with polysulfide via the strong interaction between Se and S, thus alleviate...

scholarly journals Properties of S-Functionalized Nitrogen-Based MXene (Ti2NS2) as a Hosting Material for Lithium-Sulfur Batteries

Nanomaterials ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 2478
Author(s):  
Chenghao Yao ◽  
Wei Li ◽  
Kang Duan ◽  
Chen Zhu ◽  
Jinze Li ◽  
...  
Keyword(s):  
High Performance ◽  
Specific Capacity ◽  
Host Material ◽  
Sulfur Cathode ◽  
Shuttle Effect ◽  
Lithium Polysulfide ◽  
Lithium Sulfur Batteries ◽  
Calculation Results ◽  
Adsorption Energies ◽  
Lithium Sulfur

Lithium-sulfur (Li-S) batteries have received extensive attention due to their high theoretical specific capacity and theoretical energy density. However, their commercialization is hindered by the shuttle effect caused by the dissolution of lithium polysulfide. To solve this problem, a method is proposed to improve the performance of Li-S batteries using Ti2N(Ti2NS2) with S-functional groups as the sulfur cathode host material. The calculation results show that due to the mutual attraction between Li and S atoms, Ti2NS2 has the moderate adsorption energies for Li2Sx species, which is more advantageous than Ti2NO2 and can effectively inhibit the shuttle effect. Therefore, Ti2NS2 is a potential cathode host material, which is helpful to improve the performance of Li-S batteries. This work provides a reference for the design of high-performance sulfur cathode materials.

Confining Sulfur in Porous Carbon by Vapor Deposition to Achieve High-Performance Cathode for All-Solid-State Lithium–Sulfur Batteries

2021 ◽  
pp. 413-418
Author(s):  
Atif S. Alzahrani ◽  
Mitsutoshi Otaki ◽  
Daiwei Wang ◽  
Yue Gao ◽  
Timothy S. Arthur ◽  
...  
Keyword(s):  
Solid State ◽  
Vapor Deposition ◽  
Porous Carbon ◽  
High Performance ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

scholarly journals Protective interlayer for trapping polysulfides and conducting host for sulfur: Dual role of candle soot carbon for the development of high performance Lithium-Sulfur battery

2021 ◽  
Author(s):  
Vikram KIshore Bharti ◽  
Ananya Gangadharan ◽  
S Krishna Kumar ◽  
Anil Daliprasad Pathak ◽  
Chandra Shekhar Sharma
Keyword(s):  
High Performance ◽  
Dual Role ◽  
Next Generation ◽  
Sulfur Cathode ◽  
Candle Soot ◽  
Lithium Polysulfide ◽  
Soot Carbon ◽  
Sulfur Battery ◽  
Lithium Sulfur

The commercial realization of next-generation Lithium-Sulfur (Li-S) battery is mainly hindered due to the unwanted lithium polysulfide shuttling and the insulating nature of sulfur cathode. Herein the present work, we...

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.

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