Abstract The lithium–sulfur (Li–S) battery is considered as a promising future energy storage device owing to its high theoretical density, low cost of the raw active material (sulfur), and environmental friendliness. On other hand, there are still challenging issues for practical applications Li–S batteries, including sulfur utilization, poor cyclability, rate capability. Although considerable efforts made overcome current obstacles in one far from meeting requirements commercialization...

High-energy and long cycle lithium-sulfur (Li-S) pouch cells are limited by the insufficient capacities stabilities of their cathodes under practical electrolyte/sulfur (E/S), electrolyte/capacity (E/C), negative/positive (N/P) ratios. Herein, an advanced cathode comprising highly active Fe single-atom catalysts (SACs) is reported to form 320.2 W h kg-1 multistacked Li-S with total capacity ≈1 A level, satisfying low E/S (3.0), E/C (2.8), N/P (2.3) ratios high sulfur loadings (8.4 mg cm-2 )....

1T exfoliated MoS₂@CNT-based bifunctional separators in a tandem configuration delivered excellent electrochemical performance, and rational guidelines for preparing lithium sulfur batteries were suggested.

Partially unzipped MWCNTs provide increased surface area and accessible inner pores with oxygen groups leading to high performance sulfur batteries.

Continuous efforts have been made to attain high performance Li‐S batteries by preventing loss of soluble polysulfides, whereas issues related insoluble discharge products, Li 2 S and S, underestimated. A facile mild method, diazotization, that enables uniform functionalization on the surface ordered mesoporous carbon (CMK‐3) with aniline functional groups while not deteriorating original CMK‐3 microstructure is demonstrated. The possess favorable interactions products. Thus, they...

Designing an electrocatalyst that simultaneously satisfies high catalytic activity and surface stability is essential for realizing high-performance lithium-sulfur (Li||S) batteries. Here, we propose advanced by constructing a thin protective layer (PCL) on the of metal nanoparticle catalysts. This few atomic thicknesses PCL composed pyridinic N embedded graphitic carbon allows electrons to transfer from N, resulting in optimized p-orbital level favorable highly active conversion reaction...

A novel dual-imprinting method is suggested to provide a straightforward strategy synthesize highly pyridinic N-enriched hierarchically nanostructured carbon for energy applications.

N-doped hierarchical porous carbon with uniaxially packed nanotubes (CNTs) was prepared by copolymer single-nozzle electrospinning, carbonization, and KOH activation. Densely aligned CNTs improve the electrical conductivity act as a structural scaffold, enhancing electrochemical performance of anode. A partially graphitized shell, which has rapid ion accessible pore network abundant redox sites, designed to expand sites from surface material whole material, including inner part. As an anode,...

A facile purification method for oxidized carbon nanotubes (CNTs) is developed to preserve acidic compounds (ACCs) achieving high-quality dispersion of CNTs. The remaining ACCs, which originated from the surface destruction CNTs during oxidation process, are considered play a crucial role in water and various polar protic solvents. To elucidate concrete direct titration applied quantitatively investigate degree ionization both ACCs their aqueous dispersions. While with strong carboxylic...

Graphene oxide liquid crystals (GO LC) prove their potential usefulness in a new design of carbon scaffold composites with ordered structures from nano to macroscale. This paper highlights the degree GO functionalization as notable influencing factor on LC formation. The large amount oxygen functional groups, which cause secondary interactions between GOs, decrease critical concentration for phase transitions isotropic biphasic nematic phases. In state where and anisotropic phases coexist,...

Partially opened carbon nanotubes provide increased surface area and accessible inner pores with oxygen groups leading to high performance sulfur batteries.

Korean ginseng (Panax C. A. Meyer) is one of the most popular medicinal herbs in world. This plant known to have many health benefits and contain a wide variety bioactive components. However, knowledge on its lipid compound still far from being fully explored. Although glycosyl inositol phosphoceramides (GIPCs) are main sphingolipids tissues, GIPCs P. unknown. The present study employed nanoESI-MSSUPn/SUP, which generated characteristic fragmentation pattern that were used for structural...

In article number 1500268, Seung Jae Yang, Chong Rae Park, and co-workers report the introduction of aniline functional groups onto surface ordered mesoporous carbon by facile diazotization. The provide interactive sites for insoluble discharge products, thereby enabling a high-performance lithium sulfur battery.

Significant effort has been invested into addressing critical problems of lithium-sulfur batteries since they are considered as the next generation energy storage material due to their high specific density and low cost. 1 Critical still remain including poor cycle life rate capability originated from insulating nature sulfur polysulfide intermediate dissolution electrolyte. 2 Despite considerable success in alleviating such drastic capacity fading capability, commercial application a long...

As the demand for sustainable energy has continuously grown, storage system with high density received great attention. However, current cathode of Li-ion batteries based on an intercalation reaction insufficient theoretical capacity electric vehicles or grid storage. Sulfur is one most promising materials because its 1672 mAh g -1 , which around 5 times higher than that existing [1]. Lithium sulfur operate a redox near 2.2 V (vs. Li/Li + ), providing specific 2600 Wh kg . Furthermore,...

Lithium-sulfur batteries have been significantly studied owing to a high theoretical specific capacity of 1672 mAh g -1 . However, the fast fading issue which mainly stems from both polysulfide dissolution into bulk electrolyte followed by notorious ‘shuttle reaction’ and insulating nature sulfur are hindering commercialization lithium-sulfur batteries. Different types porous materials were investigated encapsulate soluble species pore physically and/or chemically adsorption, thus able stay...

Abstract High-energy lithium-sulfur (Li-S) pouch cell are limited by the insufficient capacities and stabilities of their cathodes under practical electrolyte/sulfur (E/S), electrolyte/capacity (E/C), negative/positive (N/P) ratios. Herein, we fabricated an advanced cathode comprising highly active Fe single atom catalysts (SACs) porous carbon to attain 361.8 W h kg −1 Li-S cells satisfying low E/S (2.0), E/C (1.9), N/P (2.3) ratios with high sulfur loadings (8.4 mg cm −2 ). We designed...

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