Numerical Investigation of Cathode Structure Influence on Electrochemical Behavior of Lithium-Sulfur Battery

2021 ◽  
Vol 105 (1) ◽  
pp. 617-625
Author(s):  
Martin Mačák ◽  
Kamil Jasso ◽  
Petr Vyroubal ◽  
Tomáš Kazda ◽  
Pavel Cudek
Keyword(s):  
Cyclic Voltammetry ◽  
Electrochemical Behavior ◽  
Storage Systems ◽  
Ansys Fluent ◽  
Lithium Sulfur Batteries ◽  
Cathode Structure ◽  
Sulfur Battery ◽  
Generation Technology ◽  
Lithium Sulfur ◽  
Scanning Electron

Nowadays, Lithium-Sulfur batteries are often considered as the next generation technology for energy storage systems. This article investigates the influence of the size of sulfur clusters present in the cathode on the battery overall electrochemical behavior. The properties of the cathode are studied by cyclic voltammetry simulations using a custom numerical model implemented into Ansys Fluent. The simulation is supplemented by experimental cyclic voltammetry measurements and images from a scanning electron microscope.

A Well-Designed Polymer as a Three-in-One Multifunctional Binder for High-Performance Lithium-Sulfur Battery

2020 ◽  
Author(s):  
Jia-Jia Yuan ◽  
Qingran Kong ◽  
Zheng Huang ◽  
You-Zhi Song ◽  
Mingyang Li ◽  
...  
Keyword(s):  
High Performance ◽  
Cycle Life ◽  
Commercial Application ◽  
Lithium Sulfur Battery ◽  
Shuttle Effect ◽  
Lithium Sulfur Batteries ◽  
Cathode Structure ◽  
Sulfur Battery ◽  
Lithium Sulfur ◽  
Capacity Decay

The commercial application of lithium-sulfur batteries is mainly restricted by quick capacity decay and poor cycle life due to the shuttle effect, insulate nature of sulfur, and cathode structure pulverization....

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...

Boosting Rate Performance of Li–S Batteries under High-Mass-Loading Sulfur based on Hierarchical NCNT@Co-CoP Nanowires Integrated Electrode

2021 ◽  
Author(s):  
Jianbo Li ◽  
Wenfu Xie ◽  
Shimeng Zhang ◽  
Simin Xu ◽  
Mingfei Shao
Keyword(s):  
Storage Systems ◽  
High Mass ◽  
Mass Loading ◽  
Rate Performance ◽  
Next Generation ◽  
Practical Application ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

Lithium−sulfur batteries (Li–S) has been gradual becoming one of the most promising next-generation storage systems, but its practical application is still limited by the extremely low S loading as well...

scholarly journals Lamellar Polypyrene Based on Attapulgite–Sulfur Composite for Lithium–Sulfur Battery

Membranes ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 483
Author(s):  
Jing Wang ◽  
Riwei Xu ◽  
Chengzhong Wang ◽  
Jinping Xiong
Keyword(s):  
Cathode Material ◽  
Current Density ◽  
High Current Density ◽  
Specific Capacity ◽  
Lithium Sulfur Batteries ◽  
Rate Test ◽  
Sulfur Battery ◽  
Lower Capacity ◽  
Lithium Sulfur

We report on the preparation and characterization of a novel lamellar polypyrrole using an attapulgite–sulfur composite as a hard template. Pretreated attapulgite was utilized as the carrier of elemental sulfur and the attapulgite–sulfur–polypyrrole (AT @400 °C–S–PPy) composite with 50 wt.% sulfur was obtained. The structure and morphology of the composite were characterized with infrared spectroscopy (IR), thermogravimetric analysis (TGA), and scanning electron microscopy (SEM). An AT @400 °C–S–PPy composite was further utilized as the cathode material for lithium–sulfur batteries. The first discharge specific capacity of this kind of battery reached 1175 mAh/g at a 0.1 C current rate and remained at 518 mAh/g after 100 cycles with capacity retention close to 44%. In the rate test, compared with the polypyrrole–sulfur (PPy–S) cathode material, the AT @400 °C–S–PPy cathode material showed lower capacity at a high current density, but it showed higher capacity when the current came back to a low current density, which was attributed to the “recycling” of pores and channels of attapulgite. Therefore, the lamellar composite with special pore structure has great value in improving the performance of lithium–sulfur batteries.

Nickel-based metal-organic framework-derived Ni/NC/KB as separator coating for high capacity lithium-sulfur batteries

2021 ◽  
Author(s):  
Peisen Wu ◽  
Yongbo Wu ◽  
Kaiyin Zhu ◽  
Guozheng Ma ◽  
Xiaoming Lin ◽  
...  
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Storage Systems ◽  
Metal Organic Framework ◽  
High Capacity ◽  
Energy Storage Systems ◽  
Environmental Friendliness ◽  
Lithium Sulfur Batteries ◽  
Metal Organic ◽  
Lithium Sulfur

Lithium-sulfur (Li-S) batteries have recently caught a growing number of attentions as next-generation energy storage systems on account of their outstanding theoretical energy density, environmental friendliness and economical nature. However,...

Construction of a stable lithium sulfide membrane to greatly confine polysulfides for high performance lithium–sulfur batteries

2018 ◽  
Vol 6 (18) ◽  
pp. 8655-8661 ◽  
Author(s):  
Chao Wu ◽  
Chunxian Guo ◽  
JingGao Wu ◽  
Wei Ai ◽  
Ting Yu ◽  
...  
Keyword(s):  
Discharge Current ◽  
High Performance ◽  
Material Surface ◽  
Lithium Sulfur Battery ◽  
Galvanostatic Discharge ◽  
Lithium Sulfide ◽  
Lithium Sulfur Batteries ◽  
Sulfur Battery ◽  
Lithium Sulfur

A stable lithium sulfide membrane is constructedin situto wrap the mixed sulfur/C material surface of a lithium–sulfur battery (LSB) by delicately tuning the galvanostatic discharge current.

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.

Sign in / Sign up

Export Citation Format

Share Document