Plasma-functionalized carbon-layered separators for improved performance of lithium sulfur batteries

2019 ◽  
Vol 7 (8) ◽  
pp. 3772-3782 ◽  
Author(s):  
Jee Hun Ahn ◽  
Hyun-Jin Shin ◽  
Saleem Abbas ◽  
Kwan-Young Lee ◽  
Heung Yong Ha
Keyword(s):  
Lithium Sulfur Batteries ◽  
Carbon Coated ◽  
Overall Performance ◽  
Improved Performance ◽  
Lithium Sulfur

Novel plasma-functionalized carbon-coated separators improve the overall performance of Li–S batteries.

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.

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.

Hierarchical multi-component nanofiber separators for lithium polysulfide capture in lithium–sulfur batteries: an experimental and molecular modeling study

2016 ◽  
Vol 4 (35) ◽  
pp. 13572-13581 ◽  
Author(s):  
Jiadeng Zhu ◽  
Erol Yildirim ◽  
Karim Aly ◽  
Jialong Shen ◽  
Chen Chen ◽  
...  
Keyword(s):  
Molecular Modeling ◽  
Nanofiber Membrane ◽  
Molecular Modeling Study ◽  
Lithium Polysulfide ◽  
Lithium Sulfur Batteries ◽  
Overall Performance ◽  
Lithium Sulfur ◽  
Modeling Study

A multi-functional nanofiber membrane significantly improves the overall performance of Li–S batteries.

scholarly journals A conductive carbon interlayer modified by magnetron sputtering for improved-performance lithium–sulfur batteries

RSC Advances ◽  
2017 ◽  
Vol 7 (62) ◽  
pp. 39172-39177 ◽  
Author(s):  
Jing Zhang ◽  
Heqin Li ◽  
Zhiwei Lin ◽  
Qiong Tang ◽  
Weiyu Qi ◽  
...  
Keyword(s):  
Magnetron Sputtering ◽  
Radio Frequency ◽  
Filter Paper ◽  
Carbon Film ◽  
Radio Frequency Magnetron ◽  
Radio Frequency Magnetron Sputtering ◽  
Lithium Sulfur Batteries ◽  
Improved Performance ◽  
Lithium Sulfur

A carbon film was prepared by filter paper and modified by radio-frequency magnetron sputtering as a conductive interlayer for lithium–sulfur batteries.

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.

Rational design of free-standing 3D porous MXene/rGO hybrid aerogels as polysulfide reservoirs for high-energy lithium–sulfur batteries

2019 ◽  
Vol 7 (11) ◽  
pp. 6507-6513 ◽  
Author(s):  
Jianjun Song ◽  
Xin Guo ◽  
Jinqiang Zhang ◽  
Yi Chen ◽  
Chaoyue Zhang ◽  
...  
Keyword(s):  
Rational Design ◽  
High Energy ◽  
Free Standing ◽  
Shuttle Effect ◽  
Lithium Sulfur Batteries ◽  
Overall Performance ◽  
Hybrid Aerogels ◽  
First Time ◽  
Lithium Sulfur ◽  
Hybrid Aerogel

A Ti3C2Tx MXene/rGO hybrid aerogel is applied for the first time as a free-standing polysulfide reservoir to inhibit the shuttle effect and improve the overall performance of Li–S batteries.

Functional Mesoporous Carbon-Coated Separator for Long-Life, High-Energy Lithium-Sulfur Batteries

2015 ◽  
Vol 25 (33) ◽  
pp. 5285-5291 ◽  
Author(s):  
Juan Balach ◽  
Tony Jaumann ◽  
Markus Klose ◽  
Steffen Oswald ◽  
Jürgen Eckert ◽  
...  
Keyword(s):  
Mesoporous Carbon ◽  
High Energy ◽  
Lithium Sulfur Batteries ◽  
Carbon Coated ◽  
Long Life ◽  
Coated Separator ◽  
Lithium Sulfur

A functional separator modified by synergistic MoS2 and activated carbon for improved-performance lithium sulfur batteries

2019 ◽  
Vol 6 (4) ◽  
pp. 045506 ◽  
Author(s):  
Yuanyuan Pan ◽  
Heqin Li ◽  
Yong Chen ◽  
Jing Zhang ◽  
Qiong Tang ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Lithium Sulfur Batteries ◽  
Improved Performance ◽  
Lithium Sulfur
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