Mesoporous TiO2 Nanocrystals/Graphene as an Efficient Sulfur Host Material for High-Performance Lithium–Sulfur Batteries

2016 ◽  
Vol 8 (36) ◽  
pp. 23784-23792 ◽  
Author(s):  
Yuanyuan Li ◽  
Qifa Cai ◽  
Lei Wang ◽  
Qingwei Li ◽  
Xiang Peng ◽  
...  
Keyword(s):  
High Performance ◽  
Mesoporous Tio2 ◽  
Host Material ◽  
Tio2 Nanocrystals ◽  
Lithium Sulfur Batteries ◽  
Sulfur Host ◽  
Lithium Sulfur

Constructing a 3D compact sulfur host based on carbon-nanotube threaded defective Prussian blue nanocrystals for high performance lithium–sulfur batteries

2020 ◽  
Vol 8 (3) ◽  
pp. 1154-1163 ◽  
Author(s):  
Guohong Shen ◽  
Zhixiao Liu ◽  
Piao Liu ◽  
Junfei Duan ◽  
Hussein A. Younus ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Prussian Blue ◽  
High Performance ◽  
Host Material ◽  
Highly Efficient ◽  
Lithium Sulfur Batteries ◽  
Sulfur Host ◽  
Lithium Sulfur

Towards practical lithium–sulfur batteries, a highly efficient sulfur host material based on intertwined carbon-nanotubes (CNTs) and defective Prussian blue (PB) nanocrystals is developed.

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.

BC6N as a promising sulfur host material for lithium-sulfur batteries

2021 ◽  
pp. 151843
Author(s):  
Jiahui Yu ◽  
Yichen Jin ◽  
Minglang Hu ◽  
Wei Ren ◽  
Yiqun Xie ◽  
...  
Keyword(s):  
Host Material ◽  
Lithium Sulfur Batteries ◽  
Sulfur Host ◽  
Lithium Sulfur
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