scholarly journals A core–shell cathode substrate for developing high-loading, high-performance lithium–sulfur batteries

2018 ◽  
Vol 6 (48) ◽  
pp. 24841-24847 ◽  
Author(s):  
Ran Yu ◽  
Sheng-Heng Chung ◽  
Chun-Hua Chen ◽  
Arumugam Manthiram
Keyword(s):  
High Performance ◽  
Active Material ◽  
Three Dimensional ◽  
High Loading ◽  
Core Shell ◽  
Porous Core ◽  
Lithium Sulfur Batteries ◽  
Cathode Substrate ◽  
Dense Shell ◽  
Lithium Sulfur

The internal porous core and external dense shell of the three-dimensional cathode substrate, respectively, accommodate and encapsulate a large amount of active material.

A 3D conductive network with high loading Li2S@C for high performance lithium–sulfur batteries

2017 ◽  
Vol 5 (36) ◽  
pp. 19358-19363 ◽  
Author(s):  
Dong-huang Wang ◽  
Dong Xie ◽  
Xin-hui Xia ◽  
Xu-qing Zhang ◽  
Wang-jia Tang ◽  
...  
Keyword(s):  
High Performance ◽  
Active Material ◽  
High Loading ◽  
Conductive Network ◽  
Protective Shield ◽  
Lithium Sulfur Batteries ◽  
Material Utilization ◽  
Areal Capacity ◽  
Lithium Sulfur ◽  
Active Material Utilization

We have prepared an integrated CF–CB–Li2S@C cathode with high loading Li2S for high areal-capacity Li–S batteries. The federated conductive network and efficient carbon coating not only provide an efficient electron transport and guarantee high active material utilization but also form a durable protective shield for suppressing polysulfide dissolution.

scholarly journals A three-dimensional self-assembled SnS2-nano-dots@graphene hybrid aerogel as an efficient polysulfide reservoir for high-performance lithium–sulfur batteries

2018 ◽  
Vol 6 (17) ◽  
pp. 7659-7667 ◽  
Author(s):  
Liu Luo ◽  
Sheng-Heng Chung ◽  
Arumugam Manthiram
Keyword(s):  
High Performance ◽  
Three Dimensional ◽  
High Loading ◽  
Graphene Aerogel ◽  
Free Standing ◽  
Lithium Sulfur Batteries ◽  
Self Assembled ◽  
Physical And Chemical ◽  
Sulfur Cathodes ◽  
Lithium Sulfur

A free-standing self-assembled graphene aerogel embedded with SnS2nano-dots (SnS2-ND@G) is established as an efficient substrate for high-loading sulfur cathodes with synergistically physical and chemical polysulfide-trapping capability.

Elastic three-dimensional Fe-doped polypyrrole aerogel current collector for high-loading and high-energy-density lithium-sulfur batteries

2021 ◽  
pp. 163298
Author(s):  
Jianan Wang ◽  
Jianwei Liu ◽  
Qianyue Ma ◽  
Xin Chen ◽  
Shiyi Sun ◽  
...  
Keyword(s):  
Energy Density ◽  
Three Dimensional ◽  
Current Collector ◽  
High Energy ◽  
High Energy Density ◽  
High Loading ◽  
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.

Three-dimensional hollow reduced graphene oxide spheres with a hierarchically porous structure for high-performance lithium–sulfur batteries

2019 ◽  
Vol 6 (9) ◽  
pp. 2528-2538
Author(s):  
Mengxia Li ◽  
Ying Dai ◽  
Xinmei Pei ◽  
Wen Chen
Keyword(s):  
Graphene Oxide ◽  
Porous Structure ◽  
High Performance ◽  
Three Dimensional ◽  
Hierarchically Porous ◽  
Hierarchically Porous Structure ◽  
Reduced Graphene ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur ◽  
High Sulfur Loading

A three-dimensional HrGO with a hierarchically porous structure was successfully synthesized as a sulfur-hosting material with high sulfur loading for high-performance lithium–sulfur batteries.

Three-dimensional twisted fiber composite as high-loading cathode support for lithium sulfur batteries

2019 ◽  
Vol 174 ◽  
pp. 107025 ◽  
Author(s):  
Shamshad Ali ◽  
Muhammad Waqas ◽  
Ning Chen ◽  
Dongjiang Chen ◽  
Yupei Han ◽  
...  
Keyword(s):  
Fiber Composite ◽  
Three Dimensional ◽  
High Loading ◽  
Lithium Sulfur Batteries ◽  
Twisted Fiber ◽  
Lithium Sulfur

Three-dimensional carbon framework as high-proportion sulfur host for high-performance lithium-sulfur batteries

2020 ◽  
Vol 48 ◽  
pp. 84-91 ◽  
Author(s):  
Xianbin Liu ◽  
Zechen Xiao ◽  
Changgan Lai ◽  
Shuai Zou ◽  
Ming Zhang ◽  
...  
Keyword(s):  
High Performance ◽  
Three Dimensional ◽  
Carbon Framework ◽  
Lithium Sulfur Batteries ◽  
Sulfur Host ◽  
Lithium Sulfur
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