Simultaneously Enhancing Redox Kinetics and Inhibiting the Polysulfides Shuttle Effect by MOF-derived CoSe Hollow Sphere Structures for Advanced Li-S Batteries

Nanoscale ◽  
2021 ◽  
Author(s):  
Shunyou Hu ◽  
Yuanyuan Hu ◽  
X. L. Liu ◽  
Jiaheng Zhang
Keyword(s):  
Reaction Kinetics ◽  
Hollow Sphere ◽  
Redox Reaction ◽  
Active Components ◽  
Shuttle Effect ◽  
Redox Kinetics ◽  
Lithium Sulfur

Lithium-sulfur (Li-S) batteries generally suffer from a serious “shuttle effect” during the charging/discharging process, resulting in the loss of active components and sluggish redox reaction kinetics that hinder the cycle...

Combined enhanced redox kinetics and physiochemical confinement in three-dimensionally ordered macro/mesoporous TiN for highly stable lithium-sulfur batteries

2021 ◽  
Author(s):  
Jiabing Liu ◽  
Chenchen Hu ◽  
Wanjie Gao ◽  
Haipeng Li ◽  
Yan Zhao
Keyword(s):  
Discharge Capacity ◽  
Active Sites ◽  
Surface Region ◽  
Cycling Performance ◽  
Great Promise ◽  
Energy Storage Devices ◽  
Shuttle Effect ◽  
Practical Applications ◽  
Redox Kinetics ◽  
Lithium Sulfur

Abstract Lithium-sulfur (Li-S) batteries with tremendous energy density possess great promise for the next-generation energy storage devices. Even though, the shuttle effect and sluggish redox kinetics of lithium polysulfides (LiPSs) seriously restrict practical applications of Li-S batteries. Herein, a three-dimensionally ordered macro/mesoporous TiN (3DOM TiN) nanostructure is established via using poly (methyl methacrylate) PMMA spheres as template. The interconnected macro/mesoporous channels are constructed to effectively alleviate the stacking of composite materials and render a large portion of inherent active sites exposed on the surface region. Moreover, TiN exhibits high electrical conductivity, which efficiently enhances charge transfer kinetics and guarantees the favorable electrochemical performance of sulfur cathode. More importantly, the as-prepared 3DOM TiN suppresses the shuttle effect and improves the redox kinetics significantly due to strong affinity toward LiPSs. Attributed to these unique features, the S/3DOM TiN electrode achieves an ultrahigh initial discharge capacity of 1187 mAh g-1 at 0.2 C, and stable cycling performance of 552 mAh g-1 over 500 cycles at 1 C. Meanwhile, the discharge capacity retention of 701 mAh g-1 (3.5 mAh cm-2) can be endowed for the S/3DOM TiN electrode under high sulfur loading of 5 mg cm-2 after 100 cycles at 0.1 C. Therefore, the 3DOM TiN nanostructure electrocatalyst provides a promising path for developing practically useable Li-S batteries.

TiN@C nanocages as multifunctional sulfur hosts for superior lithium-sulfur batteries

2021 ◽  
Author(s):  
Ning Zhang ◽  
Shuangshuang Zheng ◽  
Menglong Zhao ◽  
Yang Lu ◽  
Jinbing Cheng ◽  
...  
Keyword(s):  
Performance Improvement ◽  
Shuttle Effect ◽  
Redox Kinetics ◽  
Lithium Sulfur Batteries ◽  
Sulfur Hosts ◽  
Lithium Sulfur

The lithium polysulfides (LiPSs) shuttle effect and low redox kinetics is the key problem that hinders the performance improvement and prevents the achievement of commercial requirement for lithium-sulfur batteries (LSBs),...

scholarly journals Metal-Organic Framework Derived NiS2 Hollow Spheres as Multifunctional Reactors for Synergistic Regulation of Polysulfides Confinement and Redox Conversion

2021 ◽  
Author(s):  
Shunyou Hu ◽  
Mingjie Yi ◽  
Sajid Hussain Siyal ◽  
Dong Wu ◽  
Hao Wang ◽  
...  
Keyword(s):  
Metal Organic Framework ◽  
Hollow Spheres ◽  
Shuttle Effect ◽  
Hollow Structures ◽  
Redox Kinetics ◽  
Synergistic Regulation ◽  
Metal Organic ◽  
Kinetics Of ◽  
Redox Conversion ◽  
Lithium Sulfur

The shuttle effect and sluggish redox kinetics of the polysulfides seriously hinder the potential application of lithium-sulfur (Li-S) batteries. Herein, distinctive hollow structures of NiS2 (NiS2/C HSs) are developed to...

Metallic C5N Monolayers as Efficient Catalysts for Accelerating Redox Kinetics of Sulfur in Lithium-Sulfur Batteries

2021 ◽  
Author(s):  
Zhihao Wang ◽  
zhihao zeng ◽  
Wei Nong ◽  
Zhen Yang ◽  
Chenze Qi ◽  
...  
Keyword(s):  
Energy Storage ◽  
Energy Storage Devices ◽  
Shuttle Effect ◽  
Storage Devices ◽  
Redox Kinetics ◽  
Lithium Sulfur Batteries ◽  
Commercial Applications ◽  
Sulfur Battery ◽  
Kinetics Of ◽  
Lithium Sulfur

Lithium sulfur battery is one of the most promising applicants for the next generation of energy storage devices whose commercial applications are impeded by the key issue of shuttle effect....

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.

Metastable marcasite NiSe2 nanodendrites on carbon fiber clothes to suppress polysulfide shuttling for high-performance lithium-sulfur batteries

Nanoscale ◽  
2021 ◽  
Author(s):  
Jingwen Wang ◽  
Shoufu Cao ◽  
Likun Yang ◽  
Yan Zhang ◽  
Kun Xing ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Reaction Kinetics ◽  
Redox Reaction ◽  
High Performance ◽  
Promising Strategy ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

Incorporation of catalytic component is a promising strategy to promote the redox reaction kinetics and suppress the polysulfide shuttling for high-performance lithium-sulfur batteries (LSBs). In this work, metastable marcasite NiSe2...

In situ engineered ZnS–FeS heterostructures in N-doped carbon nanocages accelerating polysulfide redox kinetics for lithium sulfur batteries

2020 ◽  
Vol 8 (1) ◽  
pp. 433-442 ◽  
Author(s):  
Wenda Li ◽  
Zhijiang Gong ◽  
Xiujuan Yan ◽  
Dezhu Wang ◽  
Jing Liu ◽  
...  
Keyword(s):  
Charge Carrier ◽  
Reaction Kinetics ◽  
Interfacial Reaction ◽  
Carrier Transport ◽  
Charge Carrier Transport ◽  
Redox Kinetics ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur ◽  
Coupling Components

Building heterostructures containing dissimilar coupling components with different bandgaps can promote interfacial reaction kinetics and accelerate charge carrier transport for Li–S batteries.

scholarly journals Rational design of zwitterionic porous organic framework loading Co (II) ions to host sulfur and synergistically boost polysulfides redox kinetics for lithium sulfur batteries

2022 ◽  
Author(s):  
Miao Sun ◽  
Gaojie Yan ◽  
Haifeng Ji ◽  
Yi Feng ◽  
Xiaojie Zhang ◽  
...  
Keyword(s):  
Rational Design ◽  
Volume Changes ◽  
Shuttle Effect ◽  
Redox Kinetics ◽  
Lithium Sulfur Batteries ◽  
Kinetics Of ◽  
Porous Organic Framework ◽  
Lithium Sulfur ◽  
Organic Framework

In the development of lithium-sulfur batteries (LiSBs), the irreversible volume changes, annoying shuttle effect and slow conversion kinetics of lithium polysulfides (LiPSs) are main obstacles for further commercialization. Therefore, a...

A heterogenized Ni-doped zeolitic imidazolate framework to guide efficient trapping and catalytic conversion of polysulfides for greatly improved lithium–sulfur batteries

2018 ◽  
Vol 6 (28) ◽  
pp. 13593-13598 ◽  
Author(s):  
Yuxiang Yang ◽  
Zhenhua Wang ◽  
Taizhi Jiang ◽  
Chen Dong ◽  
Zhu Mao ◽  
...  
Keyword(s):  
Reaction Kinetics ◽  
Redox Reaction ◽  
Catalytic Conversion ◽  
Chemical Adsorption ◽  
Zeolitic Imidazolate Framework ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

Ni-Doped ZIF-8 (Ni-ZIF-8) not only restrains the shuttling of LiPSs by chemical adsorption but also facilitates the redox reaction kinetics.

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