Rational design of well-dispersed ultrafine CoS2 nanocrystals in micro–mesoporous carbon spheres with a synergistic effect for high-performance lithium–sulfur batteries

2020 ◽  
Vol 8 (21) ◽  
pp. 10885-10890 ◽  
Author(s):  
Zhanshuang Jin ◽  
Ming Zhao ◽  
Tianning Lin ◽  
Bingqiu Liu ◽  
Qi Zhang ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Mesoporous Carbon ◽  
High Performance ◽  
Rational Design ◽  
New Method ◽  
Rate Performance ◽  
Carbon Spheres ◽  
Lithium Sulfur Batteries ◽  
Sulfur Host ◽  
Lithium Sulfur

Micro–mesoporous carbon (MMC) embedded with well-dispersed ultrafine CoS2 (uCoS2) nanocrystals as an efficient sulfur host is prepared by a new method. As a result, a S/uCoS2@MMC cathode exhibits outstanding cycling stability and rate performance.

in situ engineered ultrafine NiS2-ZnS heterostructures in micro–mesoporous carbon spheres accelerating polysulfide redox kinetics for high-performance lithium–sulfur batteries

Nanoscale ◽  
2020 ◽  
Vol 12 (30) ◽  
pp. 16201-16207
Author(s):  
Zhanshuang Jin ◽  
Tianning Lin ◽  
Hongfeng Jia ◽  
Bingqiu Liu ◽  
Qi Zhang ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Mesoporous Carbon ◽  
High Performance ◽  
Chemical Adsorption ◽  
Carbon Spheres ◽  
Redox Kinetics ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

A combination of uNiS2-ZnS and micro–mesoporous carbon perfectly achieves a synergistic effect for the physical confinement and chemical adsorption/catalysis of polysulfides.

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.

Mesoporous carbon spheres with controlled porosity for high-performance lithium–sulfur batteries

2015 ◽  
Vol 285 ◽  
pp. 469-477 ◽  
Author(s):  
Dexian Wang ◽  
Aiping Fu ◽  
Hongliang Li ◽  
Yiqian Wang ◽  
Peizhi Guo ◽  
...  
Keyword(s):  
Mesoporous Carbon ◽  
High Performance ◽  
Carbon Spheres ◽  
Lithium Sulfur Batteries ◽  
Controlled Porosity ◽  
Lithium Sulfur

Rational design of hierarchical C–MgO@ZnO nanofiber as sulfur host for high-performance lithium–sulfur batteries

2020 ◽  
Vol 55 (13) ◽  
pp. 5534-5544 ◽  
Author(s):  
Danyang Ma ◽  
Renxia Zhu ◽  
Feixia Ruan ◽  
Jegatheeswaran Sonamuthu ◽  
Qian Zhang ◽  
...  
Keyword(s):  
High Performance ◽  
Rational Design ◽  
Lithium Sulfur Batteries ◽  
Sulfur Host ◽  
Lithium Sulfur

Phosphorous/oxygen co-doped mesoporous carbon bowls as sulfur host for high performance lithium-sulfur batteries

2020 ◽  
Vol 450 ◽  
pp. 227658 ◽  
Author(s):  
Zhen Wu ◽  
Lei Yuan ◽  
Qiurui Han ◽  
Yingjie Lan ◽  
Yan Zhou ◽  
...  
Keyword(s):  
Mesoporous Carbon ◽  
High Performance ◽  
Lithium Sulfur Batteries ◽  
Sulfur Host ◽  
Co Doped ◽  
Lithium Sulfur
Sign in / Sign up

Export Citation Format

Share Document