ZIF-8 derived hollow carbon to trap polysulfides for high performance lithium-sulfur batteries.

Nanoscale ◽  
2021 ◽  
Author(s):  
Md Masud Rana ◽  
Yusuke Yamauchi ◽  
Ian Gentle ◽  
Md. Shahriar A. Hossain ◽  
Mohammad Rejaul Kaiser ◽  
...  
Keyword(s):  
Energy Density ◽  
High Performance ◽  
Low Cost ◽  
Shuttle Effect ◽  
Lithium Sulfur Batteries ◽  
Solid Discharge ◽  
Discharge Product ◽  
Hollow Carbon ◽  
Lithium Sulfur

Lithium-sulfur batteries (LSBs) have been considered very promising due to their high theoretical energy density and low cost. However, the undesirable shuttle effect with solid discharge product Li2S, greatly impedes...

High-conductivity 1T-MoS2 catalysts anchored on a carbon fiber cloth for high-performance lithium–sulfur batteries

2021 ◽  
Author(s):  
Dongli Chen ◽  
Wenwei Zhan ◽  
Xue Fu ◽  
Ming Zhu ◽  
Jinle Lan ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Reaction Kinetics ◽  
High Performance ◽  
Low Cost ◽  
Shuttle Effect ◽  
Carbon Fiber Cloth ◽  
Lithium Sulfur Batteries ◽  
High Theoretical Capacity ◽  
Mos2 Catalysts ◽  
Lithium Sulfur

Lithium–sulfur (Li–S) batteries with high theoretical capacity and low cost are challenged by the polysulfide shuttle effect and sluggish reaction kinetics.

scholarly journals MnO2-Coated Dual Core–Shell Spindle-Like Nanorods for Improved Capacity Retention of Lithium–Sulfur Batteries

2020 ◽  
Vol 4 (2) ◽  
pp. 42 ◽  
Author(s):  
Hamza Dunya ◽  
Maziar Ashuri ◽  
Dana Alramahi ◽  
Zheng Yue ◽  
Kamil Kucuk ◽  
...  
Keyword(s):  
High Performance ◽  
Synergistic Effects ◽  
Coulombic Efficiency ◽  
Rate Capability ◽  
Core Shell ◽  
Shuttle Effect ◽  
Lithium Sulfur Batteries ◽  
Hollow Carbon ◽  
Dual Core ◽  
Lithium Sulfur

The emerging need for high-performance lithium–sulfur batteries has motivated many researchers to investigate different designs. However, the polysulfide shuttle effect, which is the result of dissolution of many intermediate polysulfides in electrolyte, has still remained unsolved. In this study, we have designed a sulfur-filled dual core–shell spindle-like nanorod structure coated with manganese oxide (S@HCNR@MnO2) to achieve a high-performance cathode for lithium–sulfur batteries. The cathode showed an initial discharge capacity of 1661 mA h g−1 with 80% retention of capacity over 70 cycles at a 0.2C rate. Furthermore, compared with the nanorods without any coating (S@HCNR), the MnO2-coated material displayed superior rate capability, cycling stability, and Coulombic efficiency. The synergistic effects of the nitrogen-doped hollow carbon host and the MnO2 second shell are responsible for the improved electrochemical performance of this nanostructure.

scholarly journals Lignin Nanoparticle-Coated Celgard Separator for High-Performance Lithium–Sulfur Batteries

Polymers ◽  
2019 ◽  
Vol 11 (12) ◽  
pp. 1946 ◽  
Author(s):  
Zengyao Zhang ◽  
Shun Yi ◽  
Yuejia Wei ◽  
Huiyang Bian ◽  
Ruibin Wang ◽  
...  
Keyword(s):  
High Performance ◽  
Low Cost ◽  
Electronic Devices ◽  
Shuttle Effect ◽  
Lithium Sulfur Batteries ◽  
Increasing Demand ◽  
Electron Donating Groups ◽  
Sulfur Containing ◽  
A Current ◽  
Lithium Sulfur

Tremendous efforts have been made toward the development of lithium–sulfur (Li–S) batteries as one of the most reasonable solutions to the rapidly increasing demand for portable electronic devices and electric vehicles, owing to their high cost-efficiency and theoretical energy density. However, the shuttle effect caused by soluble polysulfides is generally considered to be an insurmountable challenge, which can significantly reduce the battery lifecycle and sulfur utilization. Here, we report a lignin nanoparticle-coated Celgard (LC) separator to alleviate this problem. The LC separator enables abundant electron-donating groups and is expected to induce chemical binding of polysulfides to hinder the shuttle effect. When a sulfur-containing commercially available acetylene black (approximately 73.8 wt% sulfur content) was used as the cathode without modification, the Li–S battery with the LC separator presented much enhanced cycling stability over that with the Celgard separator for over 500 cycles at a current density of 1 C. The strategy demonstrated in this study is expected to provide more possibilities for the utilization of low-cost biomass-derived nanomaterials as separators for high-performance Li–S batteries.

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...

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...

An Effective Sulfur Conversion Catalyst based on MnCo2O4.5 Modified Graphitized Carbon Nitride Nanosheet for High-Performance Li-S batteries

2021 ◽  
Author(s):  
Wenhao Sun ◽  
Yi-Chun Lu ◽  
Yaqin Huang
Keyword(s):  
Energy Density ◽  
Specific Energy ◽  
High Performance ◽  
Carbon Nitride ◽  
Low Cost ◽  
Graphitized Carbon ◽  
Specific Energy Density ◽  
Practical Development ◽  
Conversion Catalyst ◽  
Lithium Sulfur

Lithium-sulfur (Li-S) batteries promise high theoretical specific energy density (2600 Wh kg-1), low cost and eco-friendliness. However, their practical development is limited by the shuttle of lithium polysulfides (LiPSs) and...

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...

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 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.

Sign in / Sign up

Export Citation Format

Share Document