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...

Catalytic Separator with Co–N–C Nanoreactor for High-Performance Lithium-Sulfur Batteries

2021 ◽  
Author(s):  
Longtao Ren ◽  
Qian Wang ◽  
Yajie Li ◽  
Cejun Hu ◽  
Yajun Zhao ◽  
...  
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
High Performance ◽  
Next Generation ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

Rechargeable lithium-sulfur (Li–S) batteries are considered one of the most promising next-generation energy storage devices because of their high theoretical energy density. However, the dissolution of lithium polysulfides (LiPSs) in...

Cobalt-doped porphyrin-based porous organic polymer-modified separator for high-performance lithium–sulfur batteries

2021 ◽  
Author(s):  
Shunyou Hu ◽  
Mingjie Yi ◽  
Xiyan Huang ◽  
Dong Wu ◽  
Beibei Lu ◽  
...  
Keyword(s):  
Energy Storage ◽  
High Performance ◽  
Specific Capacity ◽  
Organic Polymer ◽  
Next Generation ◽  
Porous Organic Polymer ◽  
Lithium Sulfur Batteries ◽  
Theoretical Specific Capacity ◽  
Lithium Sulfur ◽  
Modified Separator

Lithium–sulfur (Li–S) batteries are considered as the most promising next–generation energy storage owing to their excellent theoretical specific capacity (1675 mA h g-1) and abundant availability of sulfur resources at...

Sulfurized Polyacrylonitrile for High-Performance Lithium Sulfur Batteries: Advances and Prospects

2021 ◽  
Author(s):  
Xiaohui Zhao ◽  
Chonglong Wang ◽  
Ziwei Li ◽  
Xuechun Hu ◽  
Amir A. Razzaq ◽  
...  
Keyword(s):  
Energy Density ◽  
High Performance ◽  
Specific Capacity ◽  
Rechargeable Batteries ◽  
Next Generation ◽  
Lithium Sulfur Batteries ◽  
Theoretical Specific Capacity ◽  
Lithium Sulfur

The lithium sulfur (Li-S) batteries have a high theoretical specific capacity (1675 mAh g-1) and energy density (2600 Wh kg-1), exerting a high perspective as the next-generation rechargeable batteries for...

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 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.

scholarly journals MoO2 nanoparticles embedded in N-doped hydrangea-like carbon as a sulfur host for high-performance lithium–sulfur batteries

RSC Advances ◽  
2020 ◽  
Vol 10 (34) ◽  
pp. 20173-20183
Author(s):  
Yasai Wang ◽  
Guilin Feng ◽  
Yang Wang ◽  
Zhenguo Wu ◽  
Yanxiao Chen ◽  
...  
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
High Performance ◽  
High Energy ◽  
High Energy Density ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Lithium Sulfur Batteries ◽  
Sulfur Host ◽  
Lithium Sulfur

Lithium–sulfur batteries are considered to be promising energy storage devices owing to their high energy density, relatively low price and abundant resources.

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.

scholarly journals Diphenyl polysulfides: cathodes with excellent lithiation performance and high specific energy for LSBs

RSC Advances ◽  
2019 ◽  
Vol 9 (59) ◽  
pp. 34430-34436
Author(s):  
Chang Wang ◽  
Jianbao Wu ◽  
Xiaoyi Li ◽  
Yiming Mi
Keyword(s):  
Energy Storage ◽  
Specific Energy ◽  
Storage Systems ◽  
Next Generation ◽  
Energy Storage Systems ◽  
Lithium Sulfur Batteries ◽  
High Specific Energy ◽  
Lithium Sulfur

Reversible lithium–sulfur batteries (LSBs) are considered one of the most promising next-generation energy storage systems.

A multifunctional separator based on scandium oxide nanocrystal decorated carbon nanotubes for high performance lithium–sulfur batteries

Nanoscale ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 6832-6843 ◽  
Author(s):  
Jun Xu ◽  
Qi Zhang ◽  
Xin Liang ◽  
Jian Yan ◽  
Jiaqin Liu ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Rare Earth ◽  
Energy Storage ◽  
High Performance ◽  
Storage Systems ◽  
Rare Earth Oxides ◽  
Scandium Oxide ◽  
Energy Storage Systems ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

Rare earth oxides, for example scandium oxide, may open up a new prospect towards the development of advanced Li–S batteries and other energy storage systems.

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