Fast production of zinc–hexamethylenetetramine complex microflowers as an advanced sulfur reservoir for high-performance lithium–sulfur batteries

2020 ◽  
Vol 8 (10) ◽  
pp. 5062-5069 ◽  
Author(s):  
Xiaoyuan Dou ◽  
Gaoran Li ◽  
Wenyao Zhang ◽  
Fei Lu ◽  
Dan Luo ◽  
...  
Keyword(s):  
High Performance ◽  
High Capacity ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

Hierarchical zinc–hexamethylenetetramine complex microflowers were developed to establish a multifunctional interlayer towards high-capacity and durable lithium–sulfur batteries.

Understanding the high-performance Fe(OH)3@GO nanoarchitecture as effective sulfur hosts for the high capacity of lithium-sulfur batteries

2021 ◽  
Vol 538 ◽  
pp. 148032 ◽  
Author(s):  
Mohammed A. Al-Tahan ◽  
Yutao Dong ◽  
Ran Zhang ◽  
Yingying Zhang ◽  
Jianmin Zhang
Keyword(s):  
High Performance ◽  
High Capacity ◽  
Lithium Sulfur Batteries ◽  
Sulfur Hosts ◽  
Lithium Sulfur

Sulfur encapsulated in porous hollow CNTs@CNFs for high-performance lithium–sulfur batteries

2014 ◽  
Vol 2 (26) ◽  
pp. 10126-10130 ◽  
Author(s):  
Yuming Chen ◽  
Xiaoyan Li ◽  
Kyu-Sung Park ◽  
Jianhe Hong ◽  
Jie Song ◽  
...  
Keyword(s):  
Cathode Material ◽  
Specific Surface ◽  
Surface Area ◽  
Pore Volume ◽  
High Performance ◽  
High Capacity ◽  
Total Pore Volume ◽  
Bet Specific Surface Area ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

A novel carbon-sulfur nanoarchitecture with a high Brunauer–Emmett–Teller (BET) specific surface area of ~80 m2 g−1 and a total pore volume of ~0.2cm3 g−1 shows a high capacity of ~ 700 mAh g−1 at 1 C and 520 mAh g−1 at 5 C after 100 cycles, which makes it a superior cathode material for a rechargeable Li–S battery.

scholarly journals WO3 Nanowire/Carbon Nanotube Interlayer as a Chemical Adsorption Mediator for High-Performance Lithium-Sulfur Batteries

Molecules ◽  
2021 ◽  
Vol 26 (2) ◽  
pp. 377
Author(s):  
Sang-Kyu Lee ◽  
Hun Kim ◽  
Sangin Bang ◽  
Seung-Taek Myung ◽  
Yang-Kook Sun
Keyword(s):  
Structural Stability ◽  
High Performance ◽  
High Capacity ◽  
Chemical Adsorption ◽  
Electrochemical Testing ◽  
Lithium Polysulfide ◽  
Lithium Sulfur Batteries ◽  
A Cell ◽  
Catalytic Effects ◽  
Lithium Sulfur

We developed a new nanowire for enhancing the performance of lithium-sulfur batteries. In this study, we synthesized WO3 nanowires (WNWs) via a simple hydrothermal method. WNWs and one-dimensional materials are easily mixed with carbon nanotubes (CNTs) to form interlayers. The WNW interacts with lithium polysulfides through a thiosulfate mediator, retaining the lithium polysulfide near the cathode to increase the reaction kinetics. The lithium-sulfur cell achieves a very high initial discharge capacity of 1558 and 656 mAh g−1 at 0.1 and 3 C, respectively. Moreover, a cell with a high sulfur mass loading of 4.2 mg cm−2 still delivers a high capacity of 1136 mAh g−1 at a current density of 0.2 C and it showed a capacity of 939 mAh g−1 even after 100 cycles. The WNW/CNT interlayer maintains structural stability even after electrochemical testing. This excellent performance and structural stability are due to the chemical adsorption and catalytic effects of the thiosulfate mediator on WNW.

scholarly journals Facile synthesis of sulfur@titanium carbide Mxene as high performance cathode for lithium-sulfur batteries

Nanophotonics ◽  
2020 ◽  
Vol 9 (7) ◽  
pp. 2025-2032
Author(s):  
Fan Zhang ◽  
Yunlei Zhou ◽  
Yi Zhang ◽  
Dongchan Li ◽  
Zhichao Huang
Keyword(s):  
Titanium Carbide ◽  
High Performance ◽  
High Capacity ◽  
Shuttle Effect ◽  
Lithium Polysulfide ◽  
Lithium Sulfur Batteries ◽  
Potential Applications ◽  
Sulfur Hosts ◽  
Lithium Sulfur ◽  
Sulfur Nanoparticles

AbstractThe design of sulfur hosts with polar, sulfurphilic, and conductive network is critical to lithium-sulfur (Li-S) batteries whose potential applications are greatly limited by the lithium polysulfide shuttle effect. Mxenes, possessing layered-stacked structures and high electrical conductivities, have a great potential in sulfur hosts. Herein, sulfur nanoparticles uniformly decorated on titanium carbide Mxene (S@Ti3C2Tx Mxene) are synthesized via a hydrothermal method and then utilized as a cathode for lithium-sulfur batteries. This unique architecture could accommodate sulfur nanoparticles expansion during cycling, suppress the shuttling of lithium polysulfide, and enhance electronical conductivity. Consequently, the S@Mxene with a high areal sulfur loading (∼4.0 mg cm−2) exhibits a high capacity (1477.2 mAh g−1) and a low capacity loss per cycle of 0.18% after 100 cycles at 0.2 C. This work may shed lights on the development of high performance sulfur-based cathode materials for Li-S batteries.

Duplex trapping and charge transfer with polysulfides by a diketopyrrolopyrrole-based organic framework for high-performance lithium–sulfur batteries

2019 ◽  
Vol 7 (30) ◽  
pp. 18100-18108 ◽  
Author(s):  
Jie Xu ◽  
Shiming Bi ◽  
Weiqiang Tang ◽  
Qi Kang ◽  
Dongfang Niu ◽  
...  
Keyword(s):  
Charge Transfer ◽  
High Performance ◽  
High Capacity ◽  
High Rate ◽  
Capacity Retention ◽  
Shuttle Effect ◽  
High Sulfur Content ◽  
Lithium Sulfur Batteries ◽  
Active Substances ◽  
Lithium Sulfur

The duplex trapping behavior between a DPP-based POF and polysulfides is propitious for maintaining active substances and restricting the shuttle effect, realizing Li–S batteries with high rate, high sulfur content and high capacity retention.

scholarly journals Ultrasmall titanium oxide/titanium oxynitride composite nanoparticle-embedded carbon nanofiber mats as high-capacity and free-standing electrodes for lithium sulfur batteries

RSC Advances ◽  
2017 ◽  
Vol 7 (71) ◽  
pp. 44804-44808 ◽  
Author(s):  
Cho-Long Lee ◽  
Chanhoon Kim ◽  
Il-Doo Kim
Keyword(s):  
High Performance ◽  
Carbon Nanofiber ◽  
High Capacity ◽  
Reversible Capacity ◽  
Free Standing ◽  
Capacity Retention ◽  
High Reversible Capacity ◽  
Lithium Sulfur Batteries ◽  
Nanofiber Mats ◽  
Lithium Sulfur

TiO2/TiOxNynanoparticles loaded CNFs have been synthesized as free-standing electrodes for high performance lithium–sulfur batteries, showing high reversible capacity of 1107 mA h g−1after 100 cycles at 1C with superior capacity retention of 85%.

Super-aligned carbon nanotube/graphene hybrid materials as a framework for sulfur cathodes in high performance lithium sulfur batteries

2015 ◽  
Vol 3 (10) ◽  
pp. 5305-5312 ◽  
Author(s):  
Li Sun ◽  
Weibang Kong ◽  
Ying Jiang ◽  
Hengcai Wu ◽  
Kaili Jiang ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
High Performance ◽  
Composite Electrode ◽  
High Capacity ◽  
Rate Capability ◽  
Graphene Composite ◽  
Lithium Sulfur Batteries ◽  
Binder Free ◽  
Sulfur Cathodes ◽  
Lithium Sulfur

A binder-free sulfur–carbon nanotube/graphene composite electrode is fabricated by a scalable ultrasonication-assisted method, demonstrating high capacity, reversibility, and rate capability.

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...

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