Effect of the Layer Height on the Electrochemical Properties of Lithium-Sulfur Cell

2021 ◽  
Vol 105 (1) ◽  
pp. 177-182
Author(s):  
Kamil Jasso ◽  
Tomas Kazda ◽  
Pavel Cudek ◽  
Dominika Capkova
Keyword(s):  
Energy Density ◽  
Active Material ◽  
Rate Capability ◽  
High Energy ◽  
Cell Polarization ◽  
High Energy Density ◽  
Negative Consequences ◽  
Layer Height ◽  
Material Layer ◽  
Lithium Sulfur

One of the possible ways of manufacturing high-energy density lithium-sulfur batteries is to increase the height of the active material layer and thus increase the thickness of the electrode. The energy density frequently rises in tandem with the height of the active material layer; however, increased electrode thickness might result in a variety of negative consequences such as increased internal resistance of the cell, increased cell polarization, decreased porosity, or insufficient ion diffusion. The effect of the layer height of the positive electrode on the rate capability, energy density, and cycling behavior of the lithium-sulfur cells will be analyzed in this article.

scholarly journals Designing high energy density flow batteries by tuning active-material thermodynamics

RSC Advances ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 5432-5443
Author(s):  
Shyam K. Pahari ◽  
Tugba Ceren Gokoglan ◽  
Benjoe Rey B. Visayas ◽  
Jennifer Woehl ◽  
James A. Golen ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Energy Storage ◽  
Energy Density ◽  
Fossil Fuels ◽  
Active Material ◽  
High Energy ◽  
Theoretical Framework ◽  
High Energy Density ◽  
Density Flow ◽  
The Cost

With the cost of renewable energy near parity with fossil fuels, energy storage is paramount. We report a breakthrough on a bioinspired NRFB active-material, with greatly improved solubility, and place it in a predictive theoretical framework.

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...

Facile Synthesis of Uniform Carbon Coated Li2S/rGO cathode for High-Performance Lithium-Sulfur Batteries

MRS Advances ◽  
2018 ◽  
Vol 3 (60) ◽  
pp. 3501-3506 ◽  
Author(s):  
Gaind P. Pandey ◽  
Joshua Adkins ◽  
Lamartine Meda
Keyword(s):  
High Performance ◽  
Active Material ◽  
Cycling Performance ◽  
High Energy ◽  
High Energy Density ◽  
Shell Nanostructures ◽  
Lithium Sulfur Batteries ◽  
Carbon Coated ◽  
Co Precipitation ◽  
Lithium Sulfur

ABSTRACTLithium sulfide (Li2S) is one of the most attractive cathode materials for high energy density lithium batteries as it has a high theoretical capacity of 1166 mA h g-1. However, Li2S suffers from poor rate performance and short cycle life due to its insulating nature and polysulfide shuttle during cycling. In this work, we report a facile and viable approach to address these issues. We propose a method to synthesize a Li2S based nanocomposite cathode material by dissolving Li2S as the active material, polyvinylpyrrolidone (PVP) as the carbon precursor, and graphene oxide (GO) as a matrix to enhance the conductivity, followed by a co-precipitation and high-temperature carbonization process. The Li2S/rGO cathode yields an exceptionally high initial capacity of 817 mAh g-1 based on Li2S mass at C/20 rate and also shows a good cycling performance. The carbon-coated Li2S/rGO cathode demonstrates the capability of robust core-shell nanostructures for different rates and improved capacity retention, revealing carbon coated Li2S/rGO composites as an outstanding system for high-performance lithium-sulfur batteries.

Perforated mesoporous NiO nanostructures for an enhanced pseudocapacitive performance with ultra-high rate capability and high energy density

CrystEngComm ◽  
2019 ◽  
Vol 21 (46) ◽  
pp. 7130-7140 ◽  
Author(s):  
Narasimharao Kitchamsetti ◽  
Parameshwar R. Chikate ◽  
Ranjit A. Patil ◽  
Yuan-Ron Ma ◽  
Parasharam M. Shirage ◽  
...  
Keyword(s):  
Energy Density ◽  
Rate Capability ◽  
Mesoporous Structure ◽  
High Energy ◽  
High Rate ◽  
High Energy Density ◽  
High Rate Capability ◽  
Higher Power ◽  
Power And Energy ◽  
2D Nanosheets

The morphology of NiO (1D nanobelts and 2D nanosheets) has a significant effect on the pseudocapacitive performance. The perforated and interlinked mesoporous structure of NiO nanobelts delivered higher power and energy density than nanosheets.

Co-Electrodeposited porous PEDOT–CNT microelectrodes for integrated micro-supercapacitors with high energy density, high rate capability, and long cycling life

Nanoscale ◽  
2019 ◽  
Vol 11 (16) ◽  
pp. 7761-7770 ◽  
Author(s):  
Muhammad Tahir ◽  
Liang He ◽  
Waqas Ali Haider ◽  
Wei Yang ◽  
Xufeng Hong ◽  
...  
Keyword(s):  
Energy Density ◽  
Rate Capability ◽  
High Energy ◽  
Cycling Stability ◽  
High Rate ◽  
High Energy Density ◽  
High Rate Capability ◽  
Excellent Cycling Stability ◽  
Cycling Life

Microstructuring of the PEDOT–CNT composite for microsupercapacitors with high rate capability and excellent cycling stability.

3D Alumina-Graphene Hybrid Nanofibers as a Binder‐Free Cathode for Rechargeable Li‐S Batteries

2019 ◽  
Vol 799 ◽  
pp. 191-196
Author(s):  
Masoud Taleb ◽  
Roman Ivanov ◽  
Irina Hussainova
Keyword(s):  
Energy Density ◽  
Active Material ◽  
High Energy ◽  
High Energy Density ◽  
Storage Device ◽  
Rechargeable Lithium Batteries ◽  
Alumina Nanofibers ◽  
Electrochemically Active ◽  
Binder Free ◽  
Li Ion

Lithium-sulfur (Li-S) batteries are promising as a next generation energy-storage device because their energy density is higher than that of current Li-ion devices. Alumina nanofibers coated with graphene is electrochemically active material with tunable graphene flakes and surface area. Combination of this material with sulfur leads to an improved initial discharge capacity and cycle stability, probably due to improved electrical and ionic transport during electrochemical reactions. Based on this understanding, the resulting graphene sulfur composite showed high and stable specific capacities up to ∼900 mAh/g after 50 cycles, representing a promising cathode material for rechargeable lithium batteries with high energy density.

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