Polypyrrole-coated hollow zeolite microcake as sulfur host for lithium‑sulfur batteries with improved electrochemical behaviors

Wang, Junhai; Gao, Lvlv; Gu, Cuiping; Wang, Jun; Huang, Jiarui

doi:10.1016/j.jelechem.2020.114565

Cited by 12 publications

(2 citation statements)

References 73 publications

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“…Li 2 S 6 , as the electrochemically active species, was first reduced to short-chain polysulfides and lithium sulfides on the working electrode (peaks c and d). The lithium sulfide was then oxidized to polysulfides and sulfur element on the counter electrode (peaks a and b) [40,41]. The CV profile of CoS 2 @NCF symmetric cell demonstrates two pair of peaks at −0.28/0.28 V and −0.49/0.49 V, while CNF cell only displays a pair of broad redox peak with smaller current response, revealing a superior electrocatalytic activity of CoS 2 @NCF towards polysulfide conversion.…”

Section: Resultsmentioning

confidence: 99%

Rational design of a cobalt sulfide nanoparticle-embedded flexible carbon nanofiber membrane electrocatalyst for advanced lithium–sulfur batteries

Zhang

Song

et al. 2021

Nanotechnology

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Both the sluggish redox kinetics and severe polysulfide shuttling behavior hinders the commercialization of lithium–sulfur (Li–S) battery. To solve these obstacles, we design a cobalt sulfide nanoparticle-embedded flexible carbon nanofiber membrane (denoted as CoS2@NCF) as sulfiphilic functional interlayer materials. The hierarchically porous structure of carbon nanofiber is conducive to immobilizing sulfur species and facilitating lithium-ion penetration. Moreover, electrocatalytic CoS2 nanoparticles can significantly enhance the catalytic effect, achieving favorable adsorption-diffusion-conversion interface of polysulfide. Combined with these synergistic features, the assembled Li–S cell with CoS2@NCF interlayer exhibited a great discharge capacity of 950.9 mAh g−1 with prolonged cycle lifespan at 1 C (maintained 648.1 mAh g−1 over 500 cycles). This multifunctional interlayer material used in this contribution provides an advanced route for developing high-energy-density Li–S battery.

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Section: Resultsmentioning

confidence: 99%

Rational design of a cobalt sulfide nanoparticle-embedded flexible carbon nanofiber membrane electrocatalyst for advanced lithium–sulfur batteries

Zhang

Song

et al. 2021

Nanotechnology

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“…Sulfur has a theoretical capacity of 1675 mAh/g while lithium metal has a theoretical capacity of 3860 mAh/g. Lithium-sulfur battery has a specific energy of 2567 Wh/kg [20], [22].…”

Section: Lithium-air Batterymentioning

confidence: 99%

Advancements in Battery Technologies of Electric Vehicle

Raja

Kavvampally

2021

J. Phys.: Conf. Ser.

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The Automotive Industry has undergone a huge revolution – Electric Vehicles! Electric cars are growing fast and the demand for them is increasing all around the world, thanks to the more and improved choice, reduced prices, and enhancing battery technology. Introduced more than 100 years ago, electric vehicles have gone through a tremendous amount of advancement. This paper reviews the current major challenges faced by the Electric Vehicle Industry along with possible solutions to overcome them. Although electric vehicles have come a long way, the battery used in the vehicles needs to be further explored to harness maximum energy with a compact design. Electric vehicles should soon be able to compete with combustion engine vehicles in every aspect. Also, this paper reviews alternative materials for electrodes and batteries to make charging faster and reliable than ever. This paper envisages few concepts that could revolutionize Automobile Industry further in the future.

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Conducting Polymers Meet Lithium–Sulfur Batteries: Progress, Challenges, and Perspectives

Chen

Zhao

Yang

et al. 2023

Energy & Environ Materials

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Lithium–sulfur (Li–S) batteries have attracted increased interest because of the high theoretical energy density, low cost, and environmental friendliness. Conducting polymers (CPs), as one of the most promising materials used in Li–S batteries, can not only facilitate electron transfer and buffer the large volumetric change of sulfur benefiting from their porous structure and excellent flexibility, but also enable stronger physical/chemical adsorption capacity toward polysulfides (LiPSs) when doped with abundant heteroatoms to promote the sulfur redox kinetics and achieve the high sulfur loading. This review firstly introduces the properties of various CPs including structural CPs (polypyrrole (PPy), polyaniline (PANi), polyethylene dioxothiophene [PEDOT]) and compound CPs (polyethylene oxide (PEO), polyvinyl alcohol (PVA) and poly(acrylic acid) [PAA]), and their application potential in Li–S batteries. Furthermore, the research progress of various CPs in different components (cathode, separator, and interlayer) of Li–S batteries is systematically summarized. Finally, the application perspective of the CPs in Li–S batteries as a potential guidance is comprehensively discussed.

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Polypyrrole-coated hollow zeolite microcake as sulfur host for lithium‑sulfur batteries with improved electrochemical behaviors

Cited by 12 publications

References 73 publications

Rational design of a cobalt sulfide nanoparticle-embedded flexible carbon nanofiber membrane electrocatalyst for advanced lithium–sulfur batteries

Rational design of a cobalt sulfide nanoparticle-embedded flexible carbon nanofiber membrane electrocatalyst for advanced lithium–sulfur batteries

Advancements in Battery Technologies of Electric Vehicle

Conducting Polymers Meet Lithium–Sulfur Batteries: Progress, Challenges, and Perspectives

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