A functional interlayer as a polysulfides blocking layer for high-performance lithium–sulfur batteries

2018 ◽  
Vol 42 (2) ◽  
pp. 1431-1436 ◽  
Author(s):  
Lingxia Yin ◽  
Hui Dou ◽  
Aixiu Wang ◽  
Guiyin Xu ◽  
Ping Nie ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Electrochemical Performance ◽  
High Performance ◽  
Blocking Layer ◽  
Physical Barrier ◽  
Shuttle Effect ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

Self-standing polyaniline–graphene oxide (PANI–GO) interlayer inhibits the shuttle effect by the physical barrier and chemisorption, improving the electrochemical performance for Li–S batteries.

A pomegranate-structured sulfur cathode material with triple confinement of lithium polysulfides for high-performance lithium–sulfur batteries

2017 ◽  
Vol 5 (23) ◽  
pp. 11788-11793 ◽  
Author(s):  
Yingying Mi ◽  
Wen Liu ◽  
Qian Wang ◽  
Jianbing Jiang ◽  
Gary W. Brudvig ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Electrochemical Performance ◽  
Cathode Material ◽  
Mesoporous Carbon ◽  
High Performance ◽  
Sulfur Cathode ◽  
Oxide Composite ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

A pomegranate-structured sulfur cathode material, with a dendrimer/graphene-oxide composite wrapping sulfur-infiltrated ferrocene-functionalized mesoporous carbon, shows high electrochemical performance.

Three-in-one cathode host based on Nb3O8/graphene superlattice heterostructures for high-performance Li–S batteries

2021 ◽  
Author(s):  
Chenhui WANG ◽  
Nobuyuki Sakai ◽  
Yasuo Ebina ◽  
Takayuki KIKUCHI ◽  
Monika Snowdon ◽  
...  
Keyword(s):  
Energy Storage ◽  
High Performance ◽  
Next Generation ◽  
Shuttle Effect ◽  
Lithium Sulfur Batteries ◽  
Graphene Superlattice ◽  
Lithium Sulfur

Lithium-sulfur batteries have high promise for application in next-generation energy storage. However, further advances have been hindered by various intractable challenges, particularly three notorious problems: the “shuttle effect”, sluggish kinetics...

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.

scholarly journals Self-supporting S@GO–FWCNTs composite films as positive electrodes for high-performance lithium–sulfur batteries

RSC Advances ◽  
2018 ◽  
Vol 8 (5) ◽  
pp. 2260-2266 ◽  
Author(s):  
Lifeng Cui ◽  
Yanan Xue ◽  
Suguru Noda ◽  
Zhongming Chen
Keyword(s):  
Graphene Oxide ◽  
High Performance ◽  
Composite Films ◽  
Current Collector ◽  
Aluminum Foil ◽  
Composite Cathode ◽  
Positive Electrodes ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

We report a synthesis of a self-supporting composite cathode film, wherein aluminum foil current collector is replaced by FWCNTs and sulfur particles are uniformly wrapped by graphene oxide along with FWCNTs.

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.

scholarly journals MnO2/rGO/CNTs Framework as a Sulfur Host for High-Performance Li-S Batteries

Molecules ◽  
2020 ◽  
Vol 25 (8) ◽  
pp. 1989 ◽  
Author(s):  
Wei Dong ◽  
Lingqiang Meng ◽  
Xiaodong Hong ◽  
Sizhe Liu ◽  
Ding Shen ◽  
...  
Keyword(s):  
High Performance ◽  
Physical Adsorption ◽  
Rapid Development ◽  
Electronic Conductivity ◽  
Specific Capacity ◽  
Framework Structure ◽  
Shuttle Effect ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur ◽  
Initial Capacity

Lithium-sulfur batteries are very promising next-generation energy storage batteries due to their high theoretical specific capacity. However, the shuttle effect of lithium-sulfur batteries is one of the important bottlenecks that limits its rapid development. Herein, physical and chemical dual adsorption of lithium polysulfides are achieved by designing a novel framework structure consisting of MnO2, reduced graphene oxide (rGO), and carbon nanotubes (CNTs). The framework-structure composite of MnO2/rGO/CNTs is prepared by a simple hydrothermal method. The framework exhibits a uniform and abundant mesoporous structure (concentrating in ~12 nm). MnO2 is an α phase structure and the α-MnO2 also has a significant effect on the adsorption of lithium polysulfides. The rGO and CNTs provide a good physical adsorption interaction and good electronic conductivity for the dissolved polysulfides. As a result, the MnO2/rGO/CNTs/S cathode delivered a high initial capacity of 1201 mAh g−1 at 0.2 C. The average capacities were 916 mAh g−1, 736 mAh g−1, and 547 mAh g−1 at the current densities of 0.5 C, 1 C, and 2 C, respectively. In addition, when tested at 0.5 C, the MnO2/rGO/CNTs/S exhibited a high initial capacity of 1010 mAh g−1 and achieved 780 mAh g−1 after 200 cycles, with a low capacity decay rate of 0.11% per cycle. This framework-structure composite provides a simple way to improve the electrochemical performance of Li-S batteries.

Hollow MnO2 spheres/porous reduced graphene oxide as a cathode host for high-performance lithium-sulfur batteries

2020 ◽  
Vol 286 ◽  
pp. 121297 ◽  
Author(s):  
Yali Yang ◽  
Guozheng Ma ◽  
Jiaxing Huang ◽  
Junmin Nan ◽  
Shunying Zhen ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
High Performance ◽  
Reduced Graphene ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

Reduced graphene oxide coated Fe-soc as a cathode material for high-performance lithium-sulfur batteries

2020 ◽  
Vol 46 (15) ◽  
pp. 24155-24161 ◽  
Author(s):  
Jia Yao ◽  
Mi Zhang ◽  
Guodong Han ◽  
Xin Wang ◽  
Zhentao Wang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Cathode Material ◽  
Reduced Graphene Oxide ◽  
High Performance ◽  
Reduced Graphene ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

An acetylene black modified gel polymer electrolyte for high-performance lithium–sulfur batteries

2019 ◽  
Vol 7 (22) ◽  
pp. 13679-13686 ◽  
Author(s):  
Dezhi Yang ◽  
Liang He ◽  
Yu Liu ◽  
Wenqi Yan ◽  
Shishuo Liang ◽  
...  
Keyword(s):  
Polymer Electrolyte ◽  
High Performance ◽  
Gel Polymer Electrolyte ◽  
Dendrite Growth ◽  
Acetylene Black ◽  
Shuttle Effect ◽  
Lithium Sulfur Batteries ◽  
Lithium Dendrite ◽  
Lithium Sulfur

An acetylene black modified gel polymer electrolyte was prepared to simultaneously solve the problems of shuttle effect and lithium dendrite growth for high-performance Li–S batteries.

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