Development of supercapacitor electrodes with high strength via inkjet printing of reduced graphene oxide/ aramid nanofibers membranes

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24410%2F24%3A00012491" target="_blank" >RIV/46747885:24410/24:00012491 - isvavai.cz</a>

Výsledek na webu

<a href="https://link.springer.com/article/10.1007/s12221-024-00754-7" target="_blank" >https://link.springer.com/article/10.1007/s12221-024-00754-7</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s12221-024-00754-7" target="_blank" >10.1007/s12221-024-00754-7</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Development of supercapacitor electrodes with high strength via inkjet printing of reduced graphene oxide/ aramid nanofibers membranes

Popis výsledku v původním jazyce

In this study, we initially prepared a high-strength composite film of ANFs/PVDF/PVA. Subsequently, through inkjet printing and in-situ reduction, we successfully coated rGO onto the surface of the composite film. The electrode exhibits outstanding electrochemical performance, high specific capacitance, good energy density, and stable charge/discharge cycles. The results indicate that when the content of ANFs, PVDF, and PVA is 0.1 w/w%, 2 w/w%, and 8 w/w%, respectively, the Young‘s modulus can reach an impressive 760 MPa. The CV curves reveal that the prepared rGO/ANFs/PVDF/PVA belongs to the category of standard double-layer capacitors. Furthermore, even under bending conditions, the CV curves of the fabricated supercapacitor remain nearly consistent, demonstrating excellent flexibility and the ability to operate normally even under relatively harsh conditions. The actual specific capacitance is calculated from charge/discharge curves and reaches up to 120.9 F/g at a current density of 0.1 A/g. After 5000 charge/discharge cycles, the efficiency still maintains stability above 90 %. At an extremely low current density (0.1 A/g), it achieves an energy density of 10.8 Wh/kg. Overall, the prepared SCs possess excellent mechanical strength, flexible and stable electrochemical performance, providing significant advantages for the next generation of miniaturized electronic devices.

Název v anglickém jazyce

Development of supercapacitor electrodes with high strength via inkjet printing of reduced graphene oxide/ aramid nanofibers membranes

Popis výsledku anglicky

In this study, we initially prepared a high-strength composite film of ANFs/PVDF/PVA. Subsequently, through inkjet printing and in-situ reduction, we successfully coated rGO onto the surface of the composite film. The electrode exhibits outstanding electrochemical performance, high specific capacitance, good energy density, and stable charge/discharge cycles. The results indicate that when the content of ANFs, PVDF, and PVA is 0.1 w/w%, 2 w/w%, and 8 w/w%, respectively, the Young‘s modulus can reach an impressive 760 MPa. The CV curves reveal that the prepared rGO/ANFs/PVDF/PVA belongs to the category of standard double-layer capacitors. Furthermore, even under bending conditions, the CV curves of the fabricated supercapacitor remain nearly consistent, demonstrating excellent flexibility and the ability to operate normally even under relatively harsh conditions. The actual specific capacitance is calculated from charge/discharge curves and reaches up to 120.9 F/g at a current density of 0.1 A/g. After 5000 charge/discharge cycles, the efficiency still maintains stability above 90 %. At an extremely low current density (0.1 A/g), it achieves an energy density of 10.8 Wh/kg. Overall, the prepared SCs possess excellent mechanical strength, flexible and stable electrochemical performance, providing significant advantages for the next generation of miniaturized electronic devices.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20503 - Textiles; including synthetic dyes, colours, fibres (nanoscale materials to be 2.10; biomaterials to be 2.9)

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Fibers and Polymers

ISSN

1229-9197

e-ISSN

—

Svazek periodika

25

Číslo periodika v rámci svazku

11

Stát vydavatele periodika

KR - Korejská republika

Počet stran výsledku

12

Strana od-do

4215-4226

Kód UT WoS článku

001339304500002

EID výsledku v databázi Scopus

2-s2.0-85207021513