Porous hybrid aerogels with ultrahigh sulfur loading for lithium–sulfur batteries

2018 ◽  
Vol 6 (19) ◽  
pp. 9032-9040 ◽  
Author(s):  
Yibo He ◽  
Songyan Bai ◽  
Zhi Chang ◽  
Qi Li ◽  
Yu Qiao ◽  
...  
Keyword(s):  
High Performance ◽  
Electrode Materials ◽  
Lithium Sulfur Batteries ◽  
Hybrid Aerogels ◽  
Lithium Sulfur ◽  
Hybrid Aerogel

Porous hybrid aerogel electrode materials with ultrahigh sulfur-loading were designed and fabricated for high performance Li–S batteries.

Rational design of free-standing 3D porous MXene/rGO hybrid aerogels as polysulfide reservoirs for high-energy lithium–sulfur batteries

2019 ◽  
Vol 7 (11) ◽  
pp. 6507-6513 ◽  
Author(s):  
Jianjun Song ◽  
Xin Guo ◽  
Jinqiang Zhang ◽  
Yi Chen ◽  
Chaoyue Zhang ◽  
...  
Keyword(s):  
Rational Design ◽  
High Energy ◽  
Free Standing ◽  
Shuttle Effect ◽  
Lithium Sulfur Batteries ◽  
Overall Performance ◽  
Hybrid Aerogels ◽  
First Time ◽  
Lithium Sulfur ◽  
Hybrid Aerogel

A Ti3C2Tx MXene/rGO hybrid aerogel is applied for the first time as a free-standing polysulfide reservoir to inhibit the shuttle effect and improve the overall performance of Li–S batteries.

scholarly journals Design and facile synthesis of defect rich C-MoS2/rGO nanosheets for enhanced lithium-sulfur battery performance

2019 ◽  
Author(s):  
Chengxiang Tian ◽  
Juwei Wu ◽  
Zheng Ma ◽  
Bo Li ◽  
Pengcheng Li ◽  
...  
Keyword(s):  
Amorphous Carbon ◽  
High Performance ◽  
Electrode Materials ◽  
Specific Capacity ◽  
High Porosity ◽  
Structural Stabilization ◽  
Lithium Sulfur Batteries ◽  
Different Temperatures ◽  
Reliable Design ◽  
Lithium Sulfur

Reliable design and fabrication of advanced electrode materials are vital for developing lithium sulfur batteries. In this contribution, we report a simple one-step hydrothermal strategy for fabrication of a C-MoS2/rGO composite with both large surface area and high porosity. Double modified defect-rich MoS2 nanosheets are successfully prepared by introducing graphene oxide (GO) and amorphous carbon. The conductibility and structural stabilization of the cathodes can be improved owing to combination between the amorphous carbon and rGO, which could also restrain the dissolution of polysulfides. After annealing at different temperatures, it is found that the C-MoS2/rGO-6-S composite annealed at 600 oC delivers noticeably enhanced the performance of lithium-sulfur batteries, with a high specific capacity of 572 mAh·g-1 at 0.2C after 550 cycles, and 551 mAh·g-1 even at 2C, much better than those of MoS2-S nanosheets (249 mAh·g-1 and 149 mAh·g-1) and C-MoS2/rGO-S composite (334 mAh·g-1 and 382 mAh·g-1). Our intended electrode design protocol and annealing process may pave the way for the construction of other high-performance metal disulphide electrode for electrochemical energy storage.

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...

Three-in-one cathode host based on Nb3O8/graphene superlattice heterostructures for high-performance Li–S batteries

2021 ◽  
Author(s):  
Chenhui WANG ◽  
Nobuyuki Sakai ◽  
Yasuo Ebina ◽  
Takayuki KIKUCHI ◽  
Monika Snowdon ◽  
...  
Keyword(s):  
Energy Storage ◽  
High Performance ◽  
Next Generation ◽  
Shuttle Effect ◽  
Lithium Sulfur Batteries ◽  
Graphene Superlattice ◽  
Lithium Sulfur

Lithium-sulfur batteries have high promise for application in next-generation energy storage. However, further advances have been hindered by various intractable challenges, particularly three notorious problems: the “shuttle effect”, sluggish kinetics...

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