scholarly journals Co,N-co-doped graphene sheet as a sulfur host for high-performance lithium–sulfur batteries

RSC Advances ◽  
2022 ◽  
Vol 12 (3) ◽  
pp. 1375-1383
Author(s):  
Haili Zhao ◽  
Peng Chen ◽  
Yu Fan ◽  
Junkai Zhang ◽  
HongSheng Jia ◽  
...  
Keyword(s):  
Reaction Kinetics ◽  
Graphene Sheet ◽  
High Performance ◽  
Two Dimensional ◽  
Lithium Sulfur Batteries ◽  
Doped Graphene ◽  
Sulfur Host ◽  
Co Doped ◽  
Lithium Sulfur

Design of two-dimensional graphene with dispersed Co–N catalysts as a multifunctional S holding material in Li–S batteries to improve the retention of LiPSs and accelerate the reaction kinetics.

Phosphorus-modified Fe4N@N,P co-doped graphene as an efficient sulfur host for high-performance lithium–sulfur batteries

2021 ◽  
Author(s):  
Meng Zhang ◽  
Lu Wang ◽  
Bin Wang ◽  
Bo Zhang ◽  
Xiuping Sun ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Electrochemical Performance ◽  
High Performance ◽  
Stable Structure ◽  
Strong Affinity ◽  
Lithium Sulfur Batteries ◽  
Doped Graphene ◽  
Sulfur Host ◽  
Co Doped ◽  
Lithium Sulfur

P-Fe4N@NPG is conveniently fabricated and used as sulfur host for Li–S batteries. The P-Fe4N@NPG has a strong affinity for LiPSs, stable structure and good electrical conductivity, which could improve the electrochemical performance effectively.

scholarly journals Sandwiching Sulfur into the Dents Between N, O Co-Doped Graphene Layered Blocks with Strong Physicochemical Confinements for Stable and High-Rate Li–S Batteries

2020 ◽  
Vol 12 (1) ◽  
Author(s):  
Mengjiao Shi ◽  
Su Zhang ◽  
Yuting Jiang ◽  
Zimu Jiang ◽  
Longhai Zhang ◽  
...  
Keyword(s):  
High Performance ◽  
High Capacity ◽  
High Rate ◽  
Graphene Sheets ◽  
Rate Performance ◽  
Shuttle Effect ◽  
Lithium Sulfur Batteries ◽  
Doped Graphene ◽  
Sulfur Host ◽  
Co Doped

AbstractThe development of lithium–sulfur batteries (LSBs) is restricted by their poor cycle stability and rate performance due to the low conductivity of sulfur and severe shuttle effect. Herein, an N, O co-doped graphene layered block (NOGB) with many dents on the graphene sheets is designed as effective sulfur host for high-performance LSBs. The sulfur platelets are physically confined into the dents and closely contacted with the graphene scaffold, ensuring structural stability and high conductivity. The highly doped N and O atoms can prevent the shuttle effect of sulfur species by strong chemical adsorption. Moreover, the micropores on the graphene sheets enable fast Li+ transport through the blocks. As a result, the obtained NOGB/S composite with 76 wt% sulfur content shows a high capacity of 1413 mAh g−1 at 0.1 C, good rate performance of 433 mAh g−1 at 10 C, and remarkable stability with 526 mAh g−1 at after 1000 cycles at 1 C (average decay rate: 0.038% per cycle). Our design provides a comprehensive route for simultaneously improving the conductivity, ion transport kinetics, and preventing the shuttle effect in LSBs.

A high-efficiency N/P co-doped graphene/CNT@porous carbon hybrid matrix as a cathode host for high performance lithium–sulfur batteries

2017 ◽  
Vol 5 (38) ◽  
pp. 20458-20472 ◽  
Author(s):  
Huali Wu ◽  
Li Xia ◽  
Juan Ren ◽  
Qiaoji Zheng ◽  
Chenggang Xu ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
High Performance ◽  
High Efficiency ◽  
One Pot ◽  
Excellent Electrochemical Performance ◽  
Lithium Sulfur Batteries ◽  
Doped Graphene ◽  
First Time ◽  
Co Doped ◽  
Lithium Sulfur

Eco-friendly, multi-heteroatom-doped 3D hybrids were constructed for the first time by one-pot pyrolysis and showed excellent electrochemical performance.

Phosphorous/oxygen co-doped mesoporous carbon bowls as sulfur host for high performance lithium-sulfur batteries

2020 ◽  
Vol 450 ◽  
pp. 227658 ◽  
Author(s):  
Zhen Wu ◽  
Lei Yuan ◽  
Qiurui Han ◽  
Yingjie Lan ◽  
Yan Zhou ◽  
...  
Keyword(s):  
Mesoporous Carbon ◽  
High Performance ◽  
Lithium Sulfur Batteries ◽  
Sulfur Host ◽  
Co Doped ◽  
Lithium Sulfur

Kinetics enhancement of lithium–sulfur batteries by interlinked hollow MoO2 sphere/nitrogen-doped graphene composite

2017 ◽  
Vol 5 (48) ◽  
pp. 25187-25192 ◽  
Author(s):  
Xian Wu ◽  
Ying Du ◽  
Pengxiang Wang ◽  
Lishuang Fan ◽  
Junhan Cheng ◽  
...  
Keyword(s):  
High Performance ◽  
Lithium Sulfur Battery ◽  
Nitrogen Doped ◽  
Graphene Composite ◽  
Lithium Sulfur Batteries ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene ◽  
Sulfur Host ◽  
Sulfur Battery ◽  
Lithium Sulfur

This communication reports an interlinked MoO2 and N-rGO composite as sulfur host for high-performance lithium sulfur battery.

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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