3D graphene framework supported Li2S coated with ultra-thin Al2O3 films: binder-free cathodes for high-performance lithium sulfur batteries

2017 ◽  
Vol 5 (1) ◽  
pp. 102-112 ◽  
Author(s):  
Yan Chen ◽  
Songtao Lu ◽  
Jia Zhou ◽  
Xiaohong Wu ◽  
Wei Qin ◽  
...  
Keyword(s):  
High Performance ◽  
Thin Layers ◽  
Rate Performance ◽  
3D Graphene ◽  
Lithium Sulfur Batteries ◽  
Binder Free ◽  
Al2o3 Films ◽  
Lithium Sulfur

A newly developed Al2O3–Li2S–GS cathode with Al2O3 ultra-thin layers preferentially coated on Li2S by ALD can deliver a significantly improved cycling and rate performance for Li–S batteries.

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.

Squalene-derived sulfur-rich copolymer@ 3D graphene-carbon nanotube network cathode for high-performance lithium-sulfur batteries

Polyhedron ◽  
2019 ◽  
Vol 162 ◽  
pp. 147-154 ◽  
Author(s):  
Tuhin Subhra Sahu ◽  
Sinho Choi ◽  
Pauline Jaumaux ◽  
Jinqiang Zhang ◽  
Chengyin Wang ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
High Performance ◽  
3D Graphene ◽  
Lithium Sulfur Batteries ◽  
Carbon Nanotube Network ◽  
Lithium Sulfur

WO3 nanolayer coated 3D-graphene/sulfur composites for high performance lithium/sulfur batteries

2019 ◽  
Vol 7 (9) ◽  
pp. 4596-4603 ◽  
Author(s):  
Sinho Choi ◽  
Dong Han Seo ◽  
Mohammad Rejaul Kaiser ◽  
Chunmei Zhang ◽  
Timothy van der laan ◽  
...  
Keyword(s):  
High Performance ◽  
3D Graphene ◽  
Graphene Composite ◽  
Lithium Sulfur Batteries ◽  
Battery Systems ◽  
Lithium Sulfur

WO3/graphene composite minimizes the polysulfide dissolution problem in the lithium–sulfur (Li–S) battery systems while exhibiting an excellent battery performance.

A Mn3O4 nano-wall array based binder-free cathode for high performance lithium–sulfur batteries

2017 ◽  
Vol 5 (14) ◽  
pp. 6447-6454 ◽  
Author(s):  
Junling Guo ◽  
Xiaolong Zhang ◽  
Xinyu Du ◽  
Fengxiang Zhang
Keyword(s):  
High Performance ◽  
Lithium Sulfur Batteries ◽  
Binder Free ◽  
Lithium Sulfur ◽  
Polysulfide Shuttle

Nano-sheet array structured, highly stable Mn3O4 (compared with MnO2) provides long-lasting suppression of polysulfide shuttle in lithium sulfur batteries.

scholarly journals Construction of ultrathin MnO2 decorated graphene/carbon nanotube nanocomposites as efficient sulfur hosts for high-performance lithium–sulfur batteries

RSC Advances ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 6346-6355 ◽  
Author(s):  
Nan Wang ◽  
Sikan Peng ◽  
Xiang Chen ◽  
Jixian Wang ◽  
Chen Wang ◽  
...  
Keyword(s):  
High Performance ◽  
Cycling Performance ◽  
High Rate ◽  
Rate Performance ◽  
Lithium Sulfur Batteries ◽  
Sulfur Hosts ◽  
High Rate Performance ◽  
Nano Size ◽  
Lithium Sulfur

Ultrathin MnO2 nanosheets and nano size sulfur particles distributed uniformly on the surface of G/CNT hybrids, which exhibit high rate performance and long-term cycling performance.

Poly(ionic liquid)–zinc polyoxometalate composite as a binder-free cathode for high-performance lithium–sulfur batteries

2019 ◽  
Vol 7 (7) ◽  
pp. 3018-3023 ◽  
Author(s):  
Vikram Singh ◽  
Anil Kumar Padhan ◽  
Subhasis Das Adhikary ◽  
Aarti Tiwari ◽  
Debaprasad Mandal ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
High Performance ◽  
Capacity Retention ◽  
Efficient Catalyst ◽  
Ionic Polymer ◽  
Lithium Sulfur Batteries ◽  
Binder Free ◽  
High Utilization ◽  
Poly Ionic Liquid ◽  
Lithium Sulfur

A polyoxometalate–ionic polymer composite was utilized as highly stable and efficient catalyst for high performance Li–S battery cathode with high utilization of sulfur and capacity retention.

scholarly journals A binder-free electrode architecture design for lithium–sulfur batteries: a review

2019 ◽  
Vol 1 (6) ◽  
pp. 2104-2122 ◽  
Author(s):  
Junling Guo ◽  
Jinping Liu
Keyword(s):  
High Performance ◽  
Architecture Design ◽  
Lithium Sulfur Batteries ◽  
Binder Free ◽  
Sulfur Cathodes ◽  
Lithium Sulfur ◽  
Metal Anodes

Binder-free structures offering structural and kinetic advantages for constructing high performance sulfur cathodes and dendrite-free Li metal anodes are reviewed.

scholarly journals MOF-derived hierarchical CoP nanoflakes anchored on vertically erected graphene scaffolds as self-supported and flexible hosts for lithium–sulfur batteries

2020 ◽  
Vol 8 (6) ◽  
pp. 3027-3034 ◽  
Author(s):  
Jia Jin ◽  
Wenlong Cai ◽  
Jingsheng Cai ◽  
Yuanlong Shao ◽  
Yingze Song ◽  
...  
Keyword(s):  
High Performance ◽  
High Conductivity ◽  
Shuttle Effect ◽  
Practical Applications ◽  
Lithium Sulfur Batteries ◽  
Binder Free ◽  
Lithium Sulfur

A self-supported and binder-free CoP@G/CC-S cathode affording high conductivity, a suppressed shuttle effect and favorable mechanical robustness enables high-performance flexible Li–S batteries for practical applications.

Cellulose-Derived Carbon Microfiber Mesh for Binder-Free Lithium—Sulfur Batteries

2020 ◽  
Vol 20 (9) ◽  
pp. 5629-5635
Author(s):  
Shiqi Li ◽  
Zhiqun Cheng ◽  
Tian Xie ◽  
Zhihua Dong ◽  
Guohua Liu
Keyword(s):  
High Performance ◽  
Carbon Materials ◽  
Electronic Conductivity ◽  
Specific Capacity ◽  
Rate Capability ◽  
Lithium Sulfide ◽  
Lithium Sulfur Batteries ◽  
Binder Free ◽  
Carbon Microfiber ◽  
Lithium Sulfur

The practical application of lithium–sulfur batteries (LSBs) has been impeded by several chronic problems related to the insulating nature of sulfur and lithium sulfide, in addition to the dissolution and diffusion of lithium polysulfides. In view of these problems, a large variety of carbonaceous materials have been employed to enhance the electronic conductivity of the cathode and/or sequester lithium polysulfides within conductive matrixes. Although they may exhibit impressive electrochemical performance, the fabrication of most carbon materials involves costly precursors and complicated procedures. Waste paper—the main constituent of municipal waste—is composed of carbohydrates, and can be an ideal precursor for carbon materials. Herein, carbon microfiber meshes (CMFMs) obtained by the pyrolysis of common filter paper in argon (A-CMFM) or ammonia (N-CMFM) were used to form sulfur cathodes. Compared with LSBs based on A-CMFM, those based on N-CMFM demonstrated higher specific capacity and better rate capability, with a capacity of 650 mA h g−1 at 0.2 C and 550 mA h g−1 at 0.5 C. This was owing to the strong immobilization of lithium polysulfides resulting from the heteroatom doping and hydrophilicity of N-CMFM. The results indicate that cellulose paper-derived carbon is a promising candidate for application in high-performance LSBs.

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