scholarly journals Sandwich-Type Nitrogen and Sulfur Codoped Graphene-Backboned Porous Carbon Coated Separator for High Performance Lithium-Sulfur Batteries

Nanomaterials ◽  
2018 ◽  
Vol 8 (4) ◽  
pp. 191 ◽  
Author(s):  
Feng Chen ◽  
Lulu Ma ◽  
Jiangang Ren ◽  
Xinyu Luo ◽  
Bibo Liu ◽  
...  
Keyword(s):  
Porous Carbon ◽  
High Performance ◽  
Lithium Sulfur Batteries ◽  
Sandwich Type ◽  
Carbon Coated ◽  
Coated Separator ◽  
Lithium Sulfur

Sandwich-type porous carbon/sulfur/polyaniline composite as cathode material for high-performance lithium–sulfur batteries

RSC Advances ◽  
2016 ◽  
Vol 6 (106) ◽  
pp. 104591-104596 ◽  
Author(s):  
Yakun Bu ◽  
Jing Wu ◽  
Xiaotao Zhao ◽  
Kui Ding ◽  
Qin Liu ◽  
...  
Keyword(s):  
Cathode Material ◽  
Porous Carbon ◽  
High Performance ◽  
Pani Composite ◽  
Lithium Sulfur Batteries ◽  
Sandwich Type ◽  
Lithium Sulfur ◽  
Sulfur Nanoparticles

Sandwich-type porous carbon/sulfur/polyaniline (SPC–S–PANI) composite with active sulfur nanoparticles confined within porous carbon is prepared.

High performance lithium–sulfur batteries with a permselective sulfonated acetylene black modified separator

2016 ◽  
Vol 4 (31) ◽  
pp. 12319-12327 ◽  
Author(s):  
Fanglei Zeng ◽  
Zhaoqing Jin ◽  
Keguo Yuan ◽  
Shuai Liu ◽  
Xing Cheng ◽  
...  
Keyword(s):  
High Performance ◽  
Acetylene Black ◽  
Lithium Ions ◽  
Lithium Sulfur Batteries ◽  
Carbon Coated ◽  
Overall Performance ◽  
Coated Separator ◽  
Lithium Sulfur ◽  
Modified Separator

In this paper, a sulfonated carbon coated separator is proposed with high permselectivity to lithium ions against polysulfide anions for improving the overall performance of Li–S batteries.

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 Effective ion pathways and 3D conductive carbon networks in bentonite host enable stable and high-rate lithium–sulfur batteries

2021 ◽  
Vol 10 (1) ◽  
pp. 20-33
Author(s):  
Lian Wu ◽  
Yongqiang Dai ◽  
Wei Zeng ◽  
Jintao Huang ◽  
Bing Liao ◽  
...  
Keyword(s):  
Network Architecture ◽  
High Performance ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
High Rate ◽  
Lithium Sulfur Batteries ◽  
Carbon Networks ◽  
Carbon Coated ◽  
Lithium Sulfur ◽  
Initial Capacity

Abstract Fast charge transfer and lithium-ion transport in the electrodes are necessary for high performance Li–S batteries. Herein, a N-doped carbon-coated intercalated-bentonite (Bent@C) with interlamellar ion path and 3D conductive network architecture is designed to improve the performance of Li–S batteries by expediting ion/electron transport in the cathode. The interlamellar ion pathways are constructed through inorganic/organic intercalation of bentonite. The 3D conductive networks consist of N-doped carbon, both in the interlayer and on the surface of the modified bentonite. Benefiting from the unique structure of the Bent@C, the S/Bent@C cathode exhibits a high initial capacity of 1,361 mA h g−1 at 0.2C and achieves a high reversible capacity of 618.1 m Ah g−1 at 2C after 500 cycles with a sulfur loading of 2 mg cm−2. Moreover, with a higher sulfur loading of 3.0 mg cm−2, the cathode still delivers a reversible capacity of 560.2 mA h g−1 at 0.1C after 100 cycles.

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.

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