Ultrastable polypyrrole stabilized by hyper-cross-linked poly(styrene-co-divinylbenzene) for long-cycle supercapacitor applications

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F25%3A00641592" target="_blank" >RIV/61389013:_____/25:00641592 - isvavai.cz</a>
Result on the web
<a href="https://pubs.acs.org/doi/10.1021/acsapm.5c03208" target="_blank" >https://pubs.acs.org/doi/10.1021/acsapm.5c03208</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acsapm.5c03208" target="_blank" >10.1021/acsapm.5c03208</a>

Result language
angličtina
Original language name
Ultrastable polypyrrole stabilized by hyper-cross-linked poly(styrene-co-divinylbenzene) for long-cycle supercapacitor applications
Original language description
Polypyrrole (PPy) is a promising conducting polymer for supercapacitor electrodes, but its structural degradation during repeated cycling limits its long-term stability. Here, we report the design of a composite based on PPy chemically stabilized by hyper-cross-linked poly(styrene-co-divinylbenzene) (HPStDVB) microparticles (PPy/HPStDVB) working as a scaffold. This composite possesses a more compact structure, preventing interruptions in the conjugation of PPy. As a result, the PPy/HPStDVB electrode exhibits remarkable electrochemical durability, maintaining its capacitance over 20,000 charge–discharge cycles and demonstrating a dominant capacitive contribution (77.3%) in the hybrid supercapacitor cell. These more stable electrochemical properties of PPy on HPStDVB arise from the interactions of the HPStDVB backbone with PPy, resulting in a more stable structure due to less dynamic functional groups. This study introduces a simple yet efficient strategy for mechanically reinforced conducting-polymer electrodes, providing a new route toward durable, high-performance supercapacitors.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10404 - Polymer science

Project
<a href="/en/project/TH80020001" target="_blank" >TH80020001: Development of novel Li ion BATtery solid electrolyte separators based on Metal orgANic frameworks</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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