Silver Embedded Electrospun Nanofibers as an Efficient Interlayers for High-Performance Practical Li-S Batteries

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F25%3A00382856" target="_blank" >RIV/68407700:21220/25:00382856 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1002/slct.202500730" target="_blank" >https://doi.org/10.1002/slct.202500730</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/slct.202500730" target="_blank" >10.1002/slct.202500730</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Silver Embedded Electrospun Nanofibers as an Efficient Interlayers for High-Performance Practical Li-S Batteries

Popis výsledku v původním jazyce

This study presents a practical approach for the synthesis of Ag nanoparticle-containing polyvinyl alcohol (PVA) and polyvinyl pyrrolidone (PVP) nanofibers from AgNO3-doped PVA and PVP precursor solutions at ambient temperature. The prepared nanofibers were coated on the glass fiber separator as efficient interlayers for long-cycle life Li-S batteries. The initial specific capacity of the cell with Ag@PVP composite is 1201 mAh g-1. During the first 500 cycles, the specific capacity retains at 998 mAh g-1. The specific capacity of Ag@PVA remains at 793 mAh g-1, resulting in a lower capacity retention rate compared to Ag@PVP after 500 cycles. The best result was achieved by Ag@PVP, which exhibited a capacity retention rate of ~83% and maintained a coulombic efficiency of 99%, indicating superior cycling stability even after 500 cycles. In addition, the Ag@PVA composite achieved a capacity retention rate of ~80% and maintained a coulombic efficiency of 97.5% after 500 cycles. The incorporation of highly conductive Ag into the polymer structure can effectively reduce the shuttling effect by enhancing the chemical interactions between polysulfides and modified interlayers. Ag@PVP and Ag@PVA on glass fiber separators can improve cycling stability over long periods of time, making them promising candidates for use in scalable and practical Li-S batteries.

Název v anglickém jazyce

Silver Embedded Electrospun Nanofibers as an Efficient Interlayers for High-Performance Practical Li-S Batteries

Popis výsledku anglicky

This study presents a practical approach for the synthesis of Ag nanoparticle-containing polyvinyl alcohol (PVA) and polyvinyl pyrrolidone (PVP) nanofibers from AgNO3-doped PVA and PVP precursor solutions at ambient temperature. The prepared nanofibers were coated on the glass fiber separator as efficient interlayers for long-cycle life Li-S batteries. The initial specific capacity of the cell with Ag@PVP composite is 1201 mAh g-1. During the first 500 cycles, the specific capacity retains at 998 mAh g-1. The specific capacity of Ag@PVA remains at 793 mAh g-1, resulting in a lower capacity retention rate compared to Ag@PVP after 500 cycles. The best result was achieved by Ag@PVP, which exhibited a capacity retention rate of ~83% and maintained a coulombic efficiency of 99%, indicating superior cycling stability even after 500 cycles. In addition, the Ag@PVA composite achieved a capacity retention rate of ~80% and maintained a coulombic efficiency of 97.5% after 500 cycles. The incorporation of highly conductive Ag into the polymer structure can effectively reduce the shuttling effect by enhancing the chemical interactions between polysulfides and modified interlayers. Ag@PVP and Ag@PVA on glass fiber separators can improve cycling stability over long periods of time, making them promising candidates for use in scalable and practical Li-S batteries.

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

2025

Kód důvěrnosti údajů

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

Název periodika

ChemistrySelect

ISSN

2365-6549

e-ISSN

—

Svazek periodika

10

Číslo periodika v rámci svazku

13

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

8

Strana od-do

—

Kód UT WoS článku

001455846800001

EID výsledku v databázi Scopus

2-s2.0-105002029558