Eco-friendly solid polymer electrolytes doped with NaClO4 for next-generation energy storage devices: structural and electrochemical insights

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F25%3A63595658" target="_blank" >RIV/70883521:28610/25:63595658 - isvavai.cz</a>

Výsledek na webu

<a href="https://pubs.rsc.org/en/content/articlelanding/2025/ma/d5ma00107b" target="_blank" >https://pubs.rsc.org/en/content/articlelanding/2025/ma/d5ma00107b</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/d5ma00107b" target="_blank" >10.1039/d5ma00107b</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Eco-friendly solid polymer electrolytes doped with NaClO4 for next-generation energy storage devices: structural and electrochemical insights

Popis výsledku v původním jazyce

One of the environmental challenges of energy storage devices is ensuring sustainable manufacturing and disposal practices to minimize hazardous waste. In this study, a blend of green polymers, chitosan (CS) and polyvinyl alcohol (PVA) is used as a host matrix to create flexible ion-conducting films, with ion donating NaClO4 added to enable ion transport. A significant polymer-salt interaction is evident from the FTIR investigations. Impedance spectra reveal a decrease in the bulk resistance with increasing salt content, highlighting the potential of the system for energy storage applications. The optimized bulk conductivity is improved from (1.43 ± 0.26) × 10−8 S cm−1 for the pure blend to (5.23 ± 0.27) × 10−4 S cm−1 for the composition with 35 wt% NaClO4. The ion transport properties, investigated using the Schutt and Gerdes (S-G) model, reveal a strong dependency of conductivity on the carrier concentration over ion mobility. Linear sweep voltammetry (LSV) showed the high electrochemical stability of PCP35 up to 2.6 V. The ionic transference number close to unity confirms the purely ionic nature of the optimized composition. The electric-double layer capacitor (EDLC) comprising the optimized electrolyte composition delivers a specific capacitance of 20.58 F g−1 at 0.05 mA g−1, with energy and power densities of 2.69 W h kg−1 and 97 W kg−1, respectively.

Název v anglickém jazyce

Eco-friendly solid polymer electrolytes doped with NaClO4 for next-generation energy storage devices: structural and electrochemical insights

Popis výsledku anglicky

One of the environmental challenges of energy storage devices is ensuring sustainable manufacturing and disposal practices to minimize hazardous waste. In this study, a blend of green polymers, chitosan (CS) and polyvinyl alcohol (PVA) is used as a host matrix to create flexible ion-conducting films, with ion donating NaClO4 added to enable ion transport. A significant polymer-salt interaction is evident from the FTIR investigations. Impedance spectra reveal a decrease in the bulk resistance with increasing salt content, highlighting the potential of the system for energy storage applications. The optimized bulk conductivity is improved from (1.43 ± 0.26) × 10−8 S cm−1 for the pure blend to (5.23 ± 0.27) × 10−4 S cm−1 for the composition with 35 wt% NaClO4. The ion transport properties, investigated using the Schutt and Gerdes (S-G) model, reveal a strong dependency of conductivity on the carrier concentration over ion mobility. Linear sweep voltammetry (LSV) showed the high electrochemical stability of PCP35 up to 2.6 V. The ionic transference number close to unity confirms the purely ionic nature of the optimized composition. The electric-double layer capacitor (EDLC) comprising the optimized electrolyte composition delivers a specific capacitance of 20.58 F g−1 at 0.05 mA g−1, with energy and power densities of 2.69 W h kg−1 and 97 W kg−1, respectively.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

—

Návaznosti

N - Vyzkumna aktivita podporovana z neverejnych zdroju

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Materials Advances

ISSN

2633-5409

e-ISSN

—

Svazek periodika

10

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

22

Strana od-do

3149-3170

Kód UT WoS článku

001462894500001

EID výsledku v databázi Scopus

2-s2.0-105003068481