Two-dimensional VSe2/CNT functional materials boosted polysulfide conversion for high stability lithium-sulfur battery

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F23%3A43927564" target="_blank" >RIV/60461373:22310/23:43927564 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0167577X23006961" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0167577X23006961</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.matlet.2023.134511" target="_blank" >10.1016/j.matlet.2023.134511</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Two-dimensional VSe2/CNT functional materials boosted polysulfide conversion for high stability lithium-sulfur battery

Popis výsledku v původním jazyce

Lithium-sulfur batteries are considered one of the most likely next-generation batteries to be commercialized because of their high theoretical energy density, but severe shuttle effects affect their practical application. Herein, two-dimensional layered vanadium diselenide is combined with carbon nanotubes (2D-VSe2/CNT) to act as advanced sulfur host to suppress the shuttling of lithium polysulfides. 2D-VSe2/CNT possesses sulfiphilic surface and high electrical conductivity, which is beneficial for chemisorption of polysulfides as well as the nucleation and growth of Li2S. In addition, the fast kinetic response is confirmed by the higher current density and the large lithium ion diffusion coefficient. Furthermore, VSe2/CNT/S cathode shows ultra-stable cycling performance with a capacity decay rate of only 0.03% after 500 cycle at 0.5C. © 2023 Elsevier B.V.

Název v anglickém jazyce

Two-dimensional VSe2/CNT functional materials boosted polysulfide conversion for high stability lithium-sulfur battery

Popis výsledku anglicky

Lithium-sulfur batteries are considered one of the most likely next-generation batteries to be commercialized because of their high theoretical energy density, but severe shuttle effects affect their practical application. Herein, two-dimensional layered vanadium diselenide is combined with carbon nanotubes (2D-VSe2/CNT) to act as advanced sulfur host to suppress the shuttling of lithium polysulfides. 2D-VSe2/CNT possesses sulfiphilic surface and high electrical conductivity, which is beneficial for chemisorption of polysulfides as well as the nucleation and growth of Li2S. In addition, the fast kinetic response is confirmed by the higher current density and the large lithium ion diffusion coefficient. Furthermore, VSe2/CNT/S cathode shows ultra-stable cycling performance with a capacity decay rate of only 0.03% after 500 cycle at 0.5C. © 2023 Elsevier B.V.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

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

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

MATERIALS LETTERS

ISSN

0167-577X

e-ISSN

—

Svazek periodika

346

Číslo periodika v rámci svazku

SEP 1 2023

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

5

Strana od-do

—

Kód UT WoS článku

001001448900001

EID výsledku v databázi Scopus

2-s2.0-85159229336