Pyrite as a Low-Cost Additive in Sulfur Cathode Material for Stable Cycle Performance

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F21%3APU142713" target="_blank" >RIV/00216305:26220/21:PU142713 - isvavai.cz</a>

Výsledek na webu

<a href="https://iopscience.iop.org/article/10.1149/10501.0191ecst" target="_blank" >https://iopscience.iop.org/article/10.1149/10501.0191ecst</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1149/10501.0191ecst" target="_blank" >10.1149/10501.0191ecst</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Pyrite as a Low-Cost Additive in Sulfur Cathode Material for Stable Cycle Performance

Popis výsledku v původním jazyce

Various materials have been reported as an efficient host for sulfur to suppress large volume variation and polysulfide shuttle in lithium-sulfur batteries. Carbon materials are widely used as a matrix for sulfur to improve cycle performance and confine sulfur. Addition of transition metal sulfides into cathode material can improve cycle stability due to high efficiency of chemisorption and suppressing the polysulfide diffusion. In this work, various additions of pyrite to carbon and sulfur in the cathode material were investigated. The results show that the amount of pyrite has an affect on capacity and cycle stability of the electrode. Consequently, the lithium-sulfur batteries with the composite cathodes, containing 10 % of pyrite, exhibits stable discharge capacity of 788 mAh g-1 after 60 cycles at 0.2 C. Pyrite is a promising electrocatalyst in advanced lithium-sulfur batteries in the merits of low-cost, eco-friendliness and high activity towards polysulfides conversion reaction.

Název v anglickém jazyce

Pyrite as a Low-Cost Additive in Sulfur Cathode Material for Stable Cycle Performance

Popis výsledku anglicky

Various materials have been reported as an efficient host for sulfur to suppress large volume variation and polysulfide shuttle in lithium-sulfur batteries. Carbon materials are widely used as a matrix for sulfur to improve cycle performance and confine sulfur. Addition of transition metal sulfides into cathode material can improve cycle stability due to high efficiency of chemisorption and suppressing the polysulfide diffusion. In this work, various additions of pyrite to carbon and sulfur in the cathode material were investigated. The results show that the amount of pyrite has an affect on capacity and cycle stability of the electrode. Consequently, the lithium-sulfur batteries with the composite cathodes, containing 10 % of pyrite, exhibits stable discharge capacity of 788 mAh g-1 after 60 cycles at 0.2 C. Pyrite is a promising electrocatalyst in advanced lithium-sulfur batteries in the merits of low-cost, eco-friendliness and high activity towards polysulfides conversion reaction.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

ECS Transaction

ISBN

978-80-214-5975-5

ISSN

1938-5862

e-ISSN

1938-6737

Počet stran výsledku

8

Strana od-do

191-198

Název nakladatele

Neuveden

Místo vydání

neuveden

Místo konání akce

Brno

Datum konání akce

22. 8. 2021

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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