Simultaneously Exfoliated Boron-Doped Graphene Sheets To Encapsulate Sulfur for Applications in Lithium–Sulfur Batteries

2018 ◽  
Vol 6 (8) ◽  
pp. 9661-9670 ◽  
Author(s):  
Pengcheng Shi ◽  
Yong Wang ◽  
Xin Liang ◽  
Yi Sun ◽  
Sheng Cheng ◽  
...  
Keyword(s):  
Graphene Sheets ◽  
Boron Doped ◽  
Lithium Sulfur Batteries ◽  
Doped Graphene ◽  
Lithium Sulfur

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...

Multifunctional B/N Co‐Doped Graphene Interlayer for Fast and Stable Lithium‐Sulfur Batteries

2021 ◽  
Vol 6 (32) ◽  
pp. 8375-8378
Author(s):  
Jian‐Chun Weng ◽  
Chen‐Xin Cai ◽  
Jun‐Lin Su ◽  
Xiao‐Hong Fan ◽  
Ding‐Rong Deng ◽  
...  
Keyword(s):  
Lithium Sulfur Batteries ◽  
Doped Graphene ◽  
Co Doped ◽  
Lithium Sulfur

Sandwich-Type NbS2@S@I-Doped Graphene for High-Sulfur-Loaded, Ultrahigh-Rate, and Long-Life Lithium–Sulfur Batteries

ACS Nano ◽  
2017 ◽  
Vol 11 (8) ◽  
pp. 8488-8498 ◽  
Author(s):  
Zhubing Xiao ◽  
Zhi Yang ◽  
Linjie Zhang ◽  
Hui Pan ◽  
Ruihu Wang
Keyword(s):  
Lithium Sulfur Batteries ◽  
Sandwich Type ◽  
Doped Graphene ◽  
Long Life ◽  
Lithium Sulfur

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.

Sign in / Sign up

Export Citation Format

Share Document