A synergistic engineering layer with a versatile H2Ti3O7 electrocatalyst for a suppressed shuttle effect and enhanced catalytic conversion in lithium–sulfur batteries

2020 ◽  
Vol 8 (47) ◽  
pp. 25411-25424
Author(s):  
Changhoon Choi ◽  
Jung Been Park ◽  
Dong-Wan Kim
Keyword(s):  
Catalytic Conversion ◽  
Shuttle Effect ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

A synergistic engineering layer consisting of H2Ti3O7 and conductive agents on a separator exhibits a suppressed shuttle effect and enhanced catalytic conversion of polysulfides with acceleration of electron/Li+ transfer for Li–S batteries.

Sulfur vacancies in Co9S8-x/N-doped graphene enhancing electrochemical kinetics to high-performance lithium sulfur batteries

2021 ◽  
Author(s):  
Haojie Li ◽  
Yihua Song ◽  
Kai Xi ◽  
Wei Wang ◽  
Sheng Liu ◽  
...  
Keyword(s):  
Cathode Materials ◽  
High Performance ◽  
Catalytic Conversion ◽  
High Energy ◽  
Electrochemical Kinetics ◽  
Lithium Sulfur Batteries ◽  
Doped Graphene ◽  
Sulfur Battery ◽  
Areal Capacity ◽  
Lithium Sulfur

A sufficient areal capacity is necessary for achieving high-energy lithium sulfur battery, which requires high enough sulfur loading in cathode materials. Therefore, kinetically fast catalytic conversion of polysulfide intermediates is...

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...

Designing 2D nickel hydroxide@graphene nanosheets composites to efficiently confine sulfur for highly stable lithium-sulfur batteries

2021 ◽  
Author(s):  
Pan Liu ◽  
Yuruo Qi ◽  
Sidra Jamil ◽  
Fangyuan Xiao ◽  
Wei Zhong ◽  
...  
Keyword(s):  
Nickel Hydroxide ◽  
Graphene Nanosheets ◽  
Shuttle Effect ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

The major challenge of lithium-sulfur batteries (LSBs) is the ‘‘shuttle effect’’ of polysulfide. Here, nickel hydroxide@graphene (Ni(OH)2@GR) is synthesized as a sulfur carrier by a simple refluxing method to confine...

Fast Polysulfides Catalytic Conversion and Self-Repairing Ability for High Loading Lithium-Sulfur Batteries using a Permselective Coating Layer Modified Separator

Nanoscale ◽  
2021 ◽  
Author(s):  
Fanglei Zeng ◽  
Fang Wang ◽  
Ning Li ◽  
Ke Meng Song ◽  
Shi-Ye Chang ◽  
...  
Keyword(s):  
Energy Density ◽  
Coating Layer ◽  
High Energy ◽  
High Energy Density ◽  
High Loading ◽  
Battery System ◽  
Shuttle Effect ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur ◽  
Modified Separator

Li-S battery is considered as one of the most promising battery system because of its large theoretical capacity and high energy density. However, the “shuttle effect” of soluble polysulfides and...

scholarly journals Effective Suppression of the Polysulfide Shuttle Effect in Lithium–Sulfur Batteries by Implementing rGO–PEDOT:PSS-Coated Separators via Air-Controlled Electrospray

ACS Omega ◽  
2018 ◽  
Vol 3 (12) ◽  
pp. 16465-16471 ◽  
Author(s):  
Jin Hong Lee ◽  
Jisoo Kang ◽  
Seung-Wan Kim ◽  
Willy Halim ◽  
Margaret W. Frey ◽  
...  
Keyword(s):  
Shuttle Effect ◽  
Effective Suppression ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur ◽  
Polysulfide Shuttle

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.

Yttrium oxide nanorods as electrocatalytic polysulfides traps for curbing shuttle effect in lithium-sulfur batteries

2022 ◽  
Vol 891 ◽  
pp. 162074
Author(s):  
Youqiang Wang ◽  
Heli Yu ◽  
Arslan Majeed ◽  
Xiangqian Shen ◽  
Shanshan Yao ◽  
...  
Keyword(s):  
Yttrium Oxide ◽  
Shuttle Effect ◽  
Oxide Nanorods ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

Gel Polymer Electrolyte Based on Methyl Methacrylate for Lithium-Sulfur Batteries

2021 ◽  
Vol 105 (1) ◽  
pp. 239-245
Author(s):  
Iuliia Veselkova ◽  
Kamil Jasso ◽  
Tomas Kazda ◽  
Marie Sedlaříková
Keyword(s):  
Methyl Methacrylate ◽  
Polymer Electrolyte ◽  
Low Cost ◽  
Gel Polymer Electrolyte ◽  
Cross Link ◽  
Shuttle Effect ◽  
Lithium Sulfur Batteries ◽  
High Specific Energy ◽  
Lithium Sulfur ◽  
High Electric Conductivity

Lithium-sulfur batteries are next-generation battery systems with low cost and high specific energy. However, it is necessary to solve several deficiencies of these batteries such as shuttle effect, and gel polymer electrolyte is a great candidate. These perspective materials can be used as a replacement for liquid electrolytes, and at the same time, they can help to solve the problems of lithium-sulfur batteries. In this work, gel polymer electrolyte (GPE) based on methyl methacrylate was prepared by cross-linking strategy. As cross-link ethylene glycol dimethacrylate (EDMA) was used. Prepared gel with a high electric conductivity was testing in the lithium-sulfur cell (Li/GPE/S). The electrochemical performance of the cell was studied.

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