Sulfur vacancies in Co9S8-x/N-doped graphene enhancing electrochemical kinetics to high-performance lithium sulfur batteries

2021 ◽  
Author(s):  
Haojie Li ◽  
Yihua Song ◽  
Kai Xi ◽  
Wei Wang ◽  
Sheng Liu ◽  
...  
Keyword(s):  
Cathode Materials ◽  
High Performance ◽  
Catalytic Conversion ◽  
High Energy ◽  
Electrochemical Kinetics ◽  
Lithium Sulfur Batteries ◽  
Doped Graphene ◽  
Sulfur Battery ◽  
Areal Capacity ◽  
Lithium Sulfur

A sufficient areal capacity is necessary for achieving high-energy lithium sulfur battery, which requires high enough sulfur loading in cathode materials. Therefore, kinetically fast catalytic conversion of polysulfide intermediates is...

Kinetics enhancement of lithium–sulfur batteries by interlinked hollow MoO2 sphere/nitrogen-doped graphene composite

2017 ◽  
Vol 5 (48) ◽  
pp. 25187-25192 ◽  
Author(s):  
Xian Wu ◽  
Ying Du ◽  
Pengxiang Wang ◽  
Lishuang Fan ◽  
Junhan Cheng ◽  
...  
Keyword(s):  
High Performance ◽  
Lithium Sulfur Battery ◽  
Nitrogen Doped ◽  
Graphene Composite ◽  
Lithium Sulfur Batteries ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene ◽  
Sulfur Host ◽  
Sulfur Battery ◽  
Lithium Sulfur

This communication reports an interlinked MoO2 and N-rGO composite as sulfur host for high-performance lithium sulfur battery.

Fe2O3/rGO/CNT composite sulfur host with physical and chemical dual-encapsulation for high performance lithium-sulfur batteries

2021 ◽  
Author(s):  
Wei Dong ◽  
meng lingqiang ◽  
zhao meina ◽  
yang fang ◽  
Ding Shen ◽  
...  
Keyword(s):  
Lithium Ion Battery ◽  
Cathode Materials ◽  
High Performance ◽  
Lithium Ion ◽  
Lithium Sulfur Battery ◽  
Lithium Sulfur Batteries ◽  
Sulfur Host ◽  
Physical And Chemical ◽  
Sulfur Battery ◽  
Lithium Sulfur

Lithium sulfur battery is one of the promising alternatives to traditional lithium-ion battery, but the dissolution of polysulfides and the low conductivity of cathode materials are two important factors for...

An Eco-friendly Microorganism Method To Activate Biomass for Cathode Materials for High-Performance Lithium–Sulfur Batteries

2018 ◽  
Vol 32 (9) ◽  
pp. 9997-10007 ◽  
Author(s):  
Li Xia ◽  
Yibei Zhou ◽  
Juan Ren ◽  
Huali Wu ◽  
Dunmin Lin ◽  
...  
Keyword(s):  
Cathode Materials ◽  
High Performance ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

Facile Synthesis of Uniform Carbon Coated Li2S/rGO cathode for High-Performance Lithium-Sulfur Batteries

MRS Advances ◽  
2018 ◽  
Vol 3 (60) ◽  
pp. 3501-3506 ◽  
Author(s):  
Gaind P. Pandey ◽  
Joshua Adkins ◽  
Lamartine Meda
Keyword(s):  
High Performance ◽  
Active Material ◽  
Cycling Performance ◽  
High Energy ◽  
High Energy Density ◽  
Shell Nanostructures ◽  
Lithium Sulfur Batteries ◽  
Carbon Coated ◽  
Co Precipitation ◽  
Lithium Sulfur

ABSTRACTLithium sulfide (Li2S) is one of the most attractive cathode materials for high energy density lithium batteries as it has a high theoretical capacity of 1166 mA h g-1. However, Li2S suffers from poor rate performance and short cycle life due to its insulating nature and polysulfide shuttle during cycling. In this work, we report a facile and viable approach to address these issues. We propose a method to synthesize a Li2S based nanocomposite cathode material by dissolving Li2S as the active material, polyvinylpyrrolidone (PVP) as the carbon precursor, and graphene oxide (GO) as a matrix to enhance the conductivity, followed by a co-precipitation and high-temperature carbonization process. The Li2S/rGO cathode yields an exceptionally high initial capacity of 817 mAh g-1 based on Li2S mass at C/20 rate and also shows a good cycling performance. The carbon-coated Li2S/rGO cathode demonstrates the capability of robust core-shell nanostructures for different rates and improved capacity retention, revealing carbon coated Li2S/rGO composites as an outstanding system for high-performance lithium-sulfur batteries.

Construction of a stable lithium sulfide membrane to greatly confine polysulfides for high performance lithium–sulfur batteries

2018 ◽  
Vol 6 (18) ◽  
pp. 8655-8661 ◽  
Author(s):  
Chao Wu ◽  
Chunxian Guo ◽  
JingGao Wu ◽  
Wei Ai ◽  
Ting Yu ◽  
...  
Keyword(s):  
Discharge Current ◽  
High Performance ◽  
Material Surface ◽  
Lithium Sulfur Battery ◽  
Galvanostatic Discharge ◽  
Lithium Sulfide ◽  
Lithium Sulfur Batteries ◽  
Sulfur Battery ◽  
Lithium Sulfur

A stable lithium sulfide membrane is constructedin situto wrap the mixed sulfur/C material surface of a lithium–sulfur battery (LSB) by delicately tuning the galvanostatic discharge current.

Fabrication of Silica/Sulfur@Polyaniline Spheres with Radial Mesochannels as Enhanced Cathode Materials for High‐Performance Lithium−Sulfur Batteries

ChemNanoMat ◽  
2020 ◽  
Vol 6 (5) ◽  
pp. 827-836
Author(s):  
Qinghua Gong ◽  
Shaonan Gu ◽  
Jifan Li ◽  
Qian Wang ◽  
Xuefeng Sun ◽  
...  
Keyword(s):  
Cathode Materials ◽  
High Performance ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur
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