Results 271 to 280 of about 27,752 (344)

MXene‐Derived TinO2n−1 Quantum Dots Distributed on Porous Carbon Nanosheets for Stable and Long‐Life Li–S Batteries: Enhanced Polysulfide Mediation via Defect Engineering

Advances in Materials, 2021
The application of Li–S batteries has been hindered by the shuttling behavior and sluggish reaction kinetics of polysulfides. Here an effective polysulfide immobilizer and catalytic promoter is developed by proposing oxygen‐vacancy‐rich TinO2n−1 quantum ...
Heng Zhang, Li Yang, Peigen Zhang, Chengjie Lu, D. Sha, Bingzheng Yan, Wei He, Min Zhou, Wei Zhang, Long Pan, Zhengming Sun   +10 more
semanticscholar   +1 more source

Manipulating Electrocatalytic Polysulfide Redox Kinetics by 1D Core–Shell Like Composite for Lithium–Sulfur Batteries

Advanced Energy Materials, 2022
Although lithium–sulfur batteries have high theoretical energy density of 2600 Wh kg−1, the sluggish redox kinetics of soluble liquid polysulfide intermediates during discharge and charge is one of the main reasons for their limited battery performance ...
Chuanchuan Li, Weini Ge, Siyun Qi, Lin Zhu, Renzhi Huang, Mingwen Zhao, Yitai Qian, Liqiang Xu   +7 more
semanticscholar   +1 more source

Crosslinked Nanofiber‐Reinforced Solid‐State Electrolytes with Polysulfide Fixation Effect Towards High Safety Flexible Lithium–Sulfur Batteries

Advanced Functional Materials, 2022
Solid‐state lithium–sulfur (Li–S) batteries using gel polymer electrolytes have attracted much attention owing to their higher safety compared to liquid electrolytes and lower interfacial resistance compared to ceramic electrolytes.
Jinzhi Sheng, Qi Zhang, Chong Sun, Junxiong Wang, X. Zhong, Biao Chen, Chuang Li, Runhua Gao, Zhiyuan Han, Guangmin Zhou   +9 more
semanticscholar   +1 more source

Altering Local Chemistry of Single‐Atom Coordination Boosts Bidirectional Polysulfide Conversion of Li–S Batteries

Advanced Functional Materials, 2022
Single‐atom catalysts affording multifarious typed metal centers and varied coordination numbers are extensively employed in Li−S realm to promote redox kinetics.
Ting Huang, Ying-jie Sun, Jianghua Wu, Zixiong Shi, Yifan Ding, Menglei Wang, C. Su, Ya‐yun Li, Jingyu Sun   +8 more
semanticscholar   +1 more source

Design of Novel Transition-Metal-Doped C6N2 with High-Efficiency Polysulfide Anchoring and Catalytic Performances toward Application in Lithium-Sulfur Batteries.

ACS Applied Materials and Interfaces, 2022
Lithium-sulfur (Li-S) batteries are highly expected because of their high theoretical specific capacity and energy density. However, its application still faces challenges, including the shuttle effect affecting the sulfur reduction reaction, the high ...
Cheng He, Yu-Cang Liang, Wenxue Zhang
semanticscholar   +1 more source

Investigating of polysulfide and epoxy‐polysulfide copolymer curing

Materialwissenschaft und Werkstofftechnik, 2010
AbstractPolysulfide can be cured in various methods. In this work, the effect of various oxidative curing agents (manganese dioxide and para quinonedioxime) in presence of curing accelerator (Diphenylguanidine) on mechanical‐dynamical properties and cure time of polysulfide resin (G4) was investigated.
M. Abdouss, T. Farajpour, M. Derakhshani
openaire   +1 more source

Insight into MoS2–MoN Heterostructure to Accelerate Polysulfide Conversion toward High‐Energy‐Density Lithium–Sulfur Batteries

Advanced Energy Materials, 2021
Lithium–sulfur batteries are deemed as optimal energy devices for the next generation of high‐energy‐density energy storage. However, several problems such as low energy density and short cycle life hinder their application in industry.
Sizhe Wang, Shaopei Feng, Jianwen Liang, Qingmei Su, Feipeng Zhao, Haojie Song, M. Zheng, Qian Sun, Zhongxin Song, Xiaohua Jia, Jin Yang, Yong Li, J. Liao, Ruying Li, X. Sun   +14 more
semanticscholar   +1 more source

The transulfuration of sulfinates by polysulfides

Experientia, 1962
E stato dimostrato che la transulfurazione che consegue alla incubazione dei solfinati con zolfo ed un composto tiolico e dovuta in parte alla produzione di un polisolfuro organico, formato dal tiolo e zolfo, ed in parte al polisolfuro inorganico, formato dalla decomposizione di quello organico. L'entita della transulfurazione prodotta direttamente dal
C, DE MARCO, M, COLETTA, D, CAVALLINI
openaire   +2 more sources

Inhibition of Polysulfide Shuttles in Li–S Batteries: Modified Separators and Solid‐State Electrolytes

Advanced Energy Materials, 2020
Lithium–sulfur (Li–S) batteries are one of the most promising next‐generation energy storage systems due to their ultrahigh theoretical specific capacity.
Shulian Li, Weifeng Zhang, Jiafen Zheng, Mengyuan Lv, Huiyu Song, L. Du   +5 more
semanticscholar   +1 more source

Pulverizing Fe2O3 Nanoparticles for Developing Fe3C/N‐Codoped Carbon Nanoboxes with Multiple Polysulfide Anchoring and Converting Activity in Li‐S Batteries

Advanced Functional Materials, 2021
Sluggish redox kinetics, shuttle effect, poor conductivity, and large volume change of sulfur limit the practical applications of lithium‐sulfur batteries.
C. Zhou, Xiangcun Li, Helong Jiang, Yu Ding, G. He, Jiao Guo, Zhong Chu, Guihua Yu   +7 more
semanticscholar   +1 more source