Results 81 to 90 of about 1,361 (213)

Designing and mapping cascade catalysis pathway for balanced polysulfide conversion in Li-S batteries

open access: yesNature Communications
Lithium–sulfur batteries are fundamentally constrained by the sluggish 16-electron sulfur reduction reaction. Electrocatalytic sulfur reduction reaction is inherently complex, involving multiple lithium polysulfide intermediates (Li2Sn, n = 2–8), each ...
Leyuan Zhang   +13 more
doaj   +1 more source

Electrodeposited Sulfur and CoxS Electrocatalyst on Buckypaper as High-Performance Cathode for Li–S Batteries

open access: yesNano-Micro Letters, 2020
Lithium–sulfur batteries (LSBs) are considered as the next generation of advanced rechargeable batteries because of their high energy density. In this study, sulfur and CoxS electrocatalyst are deposited on carbon nanotube buckypaper (S/CoxS/BP) by a ...
Yi Zhan   +4 more
doaj   +1 more source

Bidirectional Soft Catalysts for Improved Power Performance of Li‐S Batteries

open access: yesAdvanced Science, EarlyView.
A soft polymer‐metal catalyst is integrated into the binder to create a catalytically active microenvironment that accelerates bidirectional sulfur redox kinetics in lithium‐sulfur batteries. A model polyvinyl alcohol‐Cu catalyst enables high areal capacities at demanding current densities and stable cycling in pouch‐cell prototypes at 0.5 C, achieving
Maleesha M. Nishshanke   +7 more
wiley   +1 more source

Comparative Insights and Overlooked Factors of Interphase Chemistry in Alkali Metal‐Ion Batteries

open access: yesAdvanced Energy Materials, EarlyView.
This review presents a comparative analysis of Li‐, Na‐, and K‐ion batteries, focusing on the critical role of electrode–electrolyte interphases. It especially highlights overlooked aspects such as SEI/CEI misconceptions, binder effects, and self‐discharge relevance, emphasizing the limitations of current understanding and offering strategies for ...
Changhee Lee   +3 more
wiley   +1 more source

Direct Laser-Printing of Molecularly-Dispersed Strongly-Anchored Sulfur-Graphene Layers as High-Performance Cathodes for Polysulfide Shuttle Effect-Inhibited Lithium-Sulfur Batteries [PDF]

open access: yes
Sulfur has recently emerged as a promising cathode material for lithium-ion batteries, offering high theoretical capacity and low cost. Its abundant availability and environmentally friendly nature make it an attractive alternative to conventional ...
Gil , Daffan   +3 more
core   +1 more source

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

open access: yesNanophotonics, 2020
The 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.
Zhang Fan   +4 more
doaj   +1 more source

Polyaniline-Pyrrole as a Potential Cathode Modifier in Magnesium-Sulfur Battery: An Ab Initio Study

open access: yesReactions
Magnesium-sulfur (Mg-S) batteries present a compelling energy storage solution, characterised by their remarkable theoretical energy density and economic viability.
Hassan Shoyiga, Msimelelo Siswana
doaj   +1 more source

Effects of LAGP electrolyte on suppressing polysulfide shuttling in Li–S cells

open access: yesRSC Advances, 2016
In this work, the solid electrolyte of Li 1.5 Al 0.5 Ge 1.5 (PO 4 ) 3 (LAGP) is used to suppress polysulfides shuttling in Li–S cells.
Xue-ling Wu   +4 more
openaire   +1 more source

Illuminating Polysulfide Distribution in Lithium Sulfur Batteries; Tracking Polysulfide Shuttle Using Operando Optical Fluorescence Microscopy [PDF]

open access: yes
High-energy-density lithium sulfur (Li-S) batteries suffer heavily from the polysulfide shuttle effect, a result of the dissolution and transport of intermediate polysulfides from the cathode, into the electrolyte, and onto the anode, leading to rapid ...
Johnson, Michael J   +5 more
core  

Retarding the polysulfide shuttle effect in lithium-sulfur batteries : a parametric study of amount of electrolyte, types of separators, and their interactions [PDF]

open access: yes, 2016
A review of various separators (i.e. cellulose-based, Celgard, fiber glass, track-etched polycarbonate, hydrophobic/phillic PVdf, etc.) has been made to examine the effect of the separator choice on the retardation of the polysulfide shuttle effect ...
Carabetta, Joseph
core  

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