C–S@PANI composite with a polymer spherical network structure for high performance lithium–sulfur batteries

2016 ◽  
Vol 18 (1) ◽  
pp. 261-266 ◽  
Author(s):  
Junkai Wang ◽  
Kaiqiang Yue ◽  
Xiaodan Zhu ◽  
Kang L. Wang ◽  
Lianfeng Duan
Keyword(s):  
High Performance ◽  
Specific Capacity ◽  
3D Structure ◽  
Conductive Polymer ◽  
Cycling Performance ◽  
High Specific Capacity ◽  
Pani Composite ◽  
Lithium Sulfur Batteries ◽  
And Migration ◽  
Lithium Sulfur

C–S@PANI composite with conductive polymer spherical network was synthesized. Its 3D structure inhibits the dissolution and migration of polysulfides into electrolyte, delivering high specific capacity and a stable cycling performance.

scholarly journals Sepiolite/CNT/S@PANI composite with stable network structure for high performance lithium sulfur batteries

RSC Advances ◽  
2018 ◽  
Vol 8 (32) ◽  
pp. 17950-17957 ◽  
Author(s):  
Guolong Yuan ◽  
Junan Pan ◽  
Yaguang Zhang ◽  
Junxi Yu ◽  
Yanjia He ◽  
...  
Keyword(s):  
Network Structure ◽  
High Performance ◽  
Conductive Polymer ◽  
Chemical Oxidation ◽  
Vacuum Heat Treatment ◽  
Oxidation Method ◽  
Pani Composite ◽  
Lithium Sulfur Batteries ◽  
Stable Network ◽  
Lithium Sulfur

The cathode composite materials for lithium sulfur batteries with a stable network structure consisting of natural sepiolite powders, carbon nanotubes and conductive polymer were synthesized by vacuum heat treatment and chemical oxidation method.

scholarly journals Three-dimensional ordered macroporous ZIF-8 nanoparticle-derived nitrogen-doped hierarchical porous carbons for high-performance lithium–sulfur batteries

RSC Advances ◽  
2020 ◽  
Vol 10 (69) ◽  
pp. 41983-41992
Author(s):  
Xinxin Ji ◽  
Qian Li ◽  
Haoquan Yu ◽  
Xiaolin Hu ◽  
Yuanzheng Luo ◽  
...  
Keyword(s):  
High Performance ◽  
Specific Capacity ◽  
Three Dimensional ◽  
High Specific Capacity ◽  
Nitrogen Doped ◽  
Hierarchical Porous ◽  
Hierarchical Porous Carbons ◽  
Lithium Sulfur Batteries ◽  
Ordered Macroporous ◽  
Lithium Sulfur

Lithium–sulfur (Li–S) batteries have attracted considerable attention due to their ultra-high specific capacity and energy density.

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...

Nitrogen-Doped Multi-Channel Carbon Nanofibers Incorporated with Nickel Nanoparticles as Multifunctional Modification of Separator for Ultra Stable Li-S Batteries

2021 ◽  
Author(s):  
Zhikang Wang ◽  
Guiqiang Cao ◽  
Da Bi ◽  
Tian-Xiong Tan ◽  
Qingxue Lai ◽  
...  
Keyword(s):  
Nickel Nanoparticles ◽  
Specific Capacity ◽  
High Energy ◽  
High Energy Density ◽  
Storage Device ◽  
Energy Storage Device ◽  
High Specific Capacity ◽  
Nitrogen Doped ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

Lithium-Sulfur batteries have been regarded as the most promising electrochemical energy storage device in consideration of their satisfactory high specific capacity and high energy density. However, the inferior conversion efficiency...

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.

scholarly journals MnO2/rGO/CNTs Framework as a Sulfur Host for High-Performance Li-S Batteries

Molecules ◽  
2020 ◽  
Vol 25 (8) ◽  
pp. 1989 ◽  
Author(s):  
Wei Dong ◽  
Lingqiang Meng ◽  
Xiaodong Hong ◽  
Sizhe Liu ◽  
Ding Shen ◽  
...  
Keyword(s):  
High Performance ◽  
Physical Adsorption ◽  
Rapid Development ◽  
Electronic Conductivity ◽  
Specific Capacity ◽  
Framework Structure ◽  
Shuttle Effect ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur ◽  
Initial Capacity

Lithium-sulfur batteries are very promising next-generation energy storage batteries due to their high theoretical specific capacity. However, the shuttle effect of lithium-sulfur batteries is one of the important bottlenecks that limits its rapid development. Herein, physical and chemical dual adsorption of lithium polysulfides are achieved by designing a novel framework structure consisting of MnO2, reduced graphene oxide (rGO), and carbon nanotubes (CNTs). The framework-structure composite of MnO2/rGO/CNTs is prepared by a simple hydrothermal method. The framework exhibits a uniform and abundant mesoporous structure (concentrating in ~12 nm). MnO2 is an α phase structure and the α-MnO2 also has a significant effect on the adsorption of lithium polysulfides. The rGO and CNTs provide a good physical adsorption interaction and good electronic conductivity for the dissolved polysulfides. As a result, the MnO2/rGO/CNTs/S cathode delivered a high initial capacity of 1201 mAh g−1 at 0.2 C. The average capacities were 916 mAh g−1, 736 mAh g−1, and 547 mAh g−1 at the current densities of 0.5 C, 1 C, and 2 C, respectively. In addition, when tested at 0.5 C, the MnO2/rGO/CNTs/S exhibited a high initial capacity of 1010 mAh g−1 and achieved 780 mAh g−1 after 200 cycles, with a low capacity decay rate of 0.11% per cycle. This framework-structure composite provides a simple way to improve the electrochemical performance of Li-S batteries.

Preparation of a graphitic N-doped multi-walled carbon nanotube composite for lithium–sulfur batteries with long-life and high specific capacity

RSC Advances ◽  
2016 ◽  
Vol 6 (80) ◽  
pp. 76568-76574 ◽  
Author(s):  
Chunli Wang ◽  
Feifei Zhang ◽  
Xuxu Wang ◽  
Gang Huang ◽  
Dongxia Yuan ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Specific Capacity ◽  
Capacity Fading ◽  
High Specific Capacity ◽  
Multi Walled Carbon Nanotube ◽  
Lithium Sulfur Batteries ◽  
Long Life ◽  
Carbon Nanotube Composite ◽  
Lithium Sulfur

One of the challenges for lithium–sulfur batteries is a rapid capacity fading owing to the insulating of sulfur and Li2S2/Li2S compounds, the dissolving and consequent shuttling of polysulfide.

Sandwich-type porous carbon/sulfur/polyaniline composite as cathode material for high-performance lithium–sulfur batteries

RSC Advances ◽  
2016 ◽  
Vol 6 (106) ◽  
pp. 104591-104596 ◽  
Author(s):  
Yakun Bu ◽  
Jing Wu ◽  
Xiaotao Zhao ◽  
Kui Ding ◽  
Qin Liu ◽  
...  
Keyword(s):  
Cathode Material ◽  
Porous Carbon ◽  
High Performance ◽  
Pani Composite ◽  
Lithium Sulfur Batteries ◽  
Sandwich Type ◽  
Lithium Sulfur ◽  
Sulfur Nanoparticles

Sandwich-type porous carbon/sulfur/polyaniline (SPC–S–PANI) composite with active sulfur nanoparticles confined within porous carbon is prepared.

Graphene oxide-polypyrrole composite as sulfur hosts for high-performance lithium-sulfur batteries

2018 ◽  
Vol 11 (06) ◽  
pp. 1840007 ◽  
Author(s):  
Qian Wang ◽  
Chengkai Yang ◽  
Hui Tang ◽  
Kai Wu ◽  
Henghui Zhou
Keyword(s):  
Graphene Oxide ◽  
High Performance ◽  
Density Functional ◽  
Specific Capacity ◽  
High Energy ◽  
High Energy Density ◽  
Composite Cathodes ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur ◽  
Capacity Decay

Lithium-sulfur batteries are considered as a promising candidate for the next-generation high energy density storage devices. However, they are still hindered by serious capacity decay on cycling caused by the dissolution of redox intermediates. Here, we designed a unique structure with polypyrrole (ppy) inserting into the graphene oxide (GO) sheet for accommodating sulfur. Such a sulfur host not only exhibits a good electronic and ionic conductivity, but also can suppress polysulfide dissolution effectively. With this advanced design, the composite cathode showed a high specific capacity of 548.4[Formula: see text]mA[Formula: see text]h[Formula: see text]g[Formula: see text] at 5.0 C. A stable Coulombic efficiency of [Formula: see text]99.5% and a capacity decay rate as low as 0.089% per cycle along with 300 cycles at 1.0 C were achieved for composite cathodes with 78[Formula: see text]wt.% of S. Besides, the interaction mechanism between PPy and lithium polysulfides (LPS) was investigated by density-functional theory (DFT), suggesting that only the polymerization of N atoms can bind strongly to Li ions of LPS rather than single N atoms. The 3D structure GO-PPy host with high conductivity and excellent trapping ability to LPS offered a viable strategy to design high-performance cathodes for Li–S batteries.

Recent advances in cathode materials for rechargeable lithium–sulfur batteries

Nanoscale ◽  
2019 ◽  
Vol 11 (33) ◽  
pp. 15418-15439 ◽  
Author(s):  
Fang Li ◽  
Quanhui Liu ◽  
Jiawen Hu ◽  
Yuezhan Feng ◽  
Pengbin He ◽  
...  
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Cathode Materials ◽  
Storage Systems ◽  
Low Cost ◽  
Specific Capacity ◽  
Promising Candidate ◽  
High Specific Capacity ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

Li–S batteries are regarded as a promising candidate for next-generation energy storage systems due to their high specific capacity (1675 mA h g−1) and energy density (2600 W h kg−1) as well as the abundance, safety and low cost of S material.

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