Sustainable Metal-Organic Framework Co-Engineered Glass Fiber Separators for Safer and Longer Cycle Life of Li-S Batteries

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F23%3A00362804" target="_blank" >RIV/68407700:21220/23:00362804 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.jallcom.2023.168962" target="_blank" >https://doi.org/10.1016/j.jallcom.2023.168962</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jallcom.2023.168962" target="_blank" >10.1016/j.jallcom.2023.168962</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Sustainable Metal-Organic Framework Co-Engineered Glass Fiber Separators for Safer and Longer Cycle Life of Li-S Batteries

Popis výsledku v původním jazyce

Most of the issues with making Li–S batteries are caused by the growth of Li dendrites and the movement of polysulfide. To solve both of these problems at the same time, this study describes the placement of Cu or Fe atoms on an ultrathin metal organic framework (MOF) nanosheet-based glass fiber separator for making Li–S batteries that are safe and last a long time. Cu or Fe atoms coordinated with oxygen atoms on the surface of ultrathin MOF nanosheets can greatly facilitate the movement of Li ions while acting as "traps" to stop polysulfide from moving around by introducing the Lewis acid-base interaction. Because of this, the Li–S cells with the Cu/MOF or Fe/MOF coatings on the glass fiber separator show long-term cycling stabilities with low-capacity decay of 0.080% and 0.057% per cycle over 400 cycles, respectively. Furthermore, Li–S cells assembled with the Cu/MOF and Fe/MOF separators show capacity retention of 985 and 1237 mAh g-1, respectively, after 400 cycles, indicating the potential of the Cu/MOF and Fe/MOF separators for practical applications.

Název v anglickém jazyce

Sustainable Metal-Organic Framework Co-Engineered Glass Fiber Separators for Safer and Longer Cycle Life of Li-S Batteries

Popis výsledku anglicky

Most of the issues with making Li–S batteries are caused by the growth of Li dendrites and the movement of polysulfide. To solve both of these problems at the same time, this study describes the placement of Cu or Fe atoms on an ultrathin metal organic framework (MOF) nanosheet-based glass fiber separator for making Li–S batteries that are safe and last a long time. Cu or Fe atoms coordinated with oxygen atoms on the surface of ultrathin MOF nanosheets can greatly facilitate the movement of Li ions while acting as "traps" to stop polysulfide from moving around by introducing the Lewis acid-base interaction. Because of this, the Li–S cells with the Cu/MOF or Fe/MOF coatings on the glass fiber separator show long-term cycling stabilities with low-capacity decay of 0.080% and 0.057% per cycle over 400 cycles, respectively. Furthermore, Li–S cells assembled with the Cu/MOF and Fe/MOF separators show capacity retention of 985 and 1237 mAh g-1, respectively, after 400 cycles, indicating the potential of the Cu/MOF and Fe/MOF separators for practical applications.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20301 - Mechanical engineering

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

Journal of Alloys and Compounds

ISSN

0925-8388

e-ISSN

1873-4669

Svazek periodika

2023

Číslo periodika v rámci svazku

01

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

27

Strana od-do

—

Kód UT WoS článku

000963327300001

EID výsledku v databázi Scopus

2-s2.0-85146685898