| 1. |
Sharma J., Krajewski M., Shekhar C.♦, Bochenek K., Zaszczyńska A., Coy E.♦, Jarek M.♦, Huang Z.♦, Jain A., Perchlorate-based poly(vinylidene fluoride-co-hexafluoropropylene) gel polymer electrolytes for high-voltage supercapacitors,
Materials Research Express, ISSN: 2053-1591, DOI: 10.1088/2053-1591/ae7e4e, Vol.13, No.125502, pp.1-17, 2026 Abstract:
This study explores the development of porous poly(vinylidene luoride-co-hexafluoropropylene) based gel polymer electrolytes (GPEs) via a general polyethylene glycol extraction method, fol-lowed by the incorporation of perchlorate salts (LiClO4, Mg(ClO4)2, NaClO4). The influence of cation valency and ionic radius on ionic transport was systematically investigated for high-voltage supercapacitors (SCs). Among the prepared electrolytes, the LiClO4 based GPE exhibits the high-est ionic conductivity of 7.4 × 10−3 S cm−1 at room temperature along with a stable electrochemi-cal window of 2.6 V and superior performance in symmetric SCs. Symmetric SCs assembled with activated carbon achieved a specific capacitance of 76.7 F g−1 and retained excellent cycling sta-bility of 96.9% after 10 000 consecutive charge-discharge cycles measured at a current density of 1 A g−1. This work highlights the enhanced performance of ion transport attributed to a well-interconnected porous structure at the electrode−electrolyte interface and provides insights into the role of chemistry in high-performance SCs. Keywords:
activated carbon, gel polymer electrolyte, ionic conductivity, supercapacitor, temperature dependence Affiliations:
| Sharma J. | - | IPPT PAN | | Krajewski M. | - | IPPT PAN | | Shekhar C. | - | other affiliation | | Bochenek K. | - | IPPT PAN | | Zaszczyńska A. | - | IPPT PAN | | Coy E. | - | other affiliation | | Jarek M. | - | other affiliation | | Huang Z. | - | Beijing University (CN) | | Jain A. | - | IPPT PAN |
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| 2. |
Michalska M.♦, Sarman M.♦, Sharma J., Kumar C., Sobczak K.♦, Kumar Singh P.♦, Jain A., Exploiting spinel manganese oxide decorated with silver nanoparticles as electrodes for supercapacitor application,
Scientific Reports, ISSN: 2045-2322, Vol.15, No.21597, pp.1-12, 2025Abstract:
This work presents a novel approach to the development of supercapacitor technology through the integration of a gel polymer electrolyte (GPE) and Ag nanoparticle (NP) modified Mn3O4 electrodes. To the best of our knowledge, this is the first study to employ a GPE comprising poly(vinylidene fluoride)-co-hexafluoropropylene (PVdF-HFP) as the host polymer, propylene carbonate (PC) as the plasticizer, and magnesium perchlorate (Mg(ClO4)2) as the salt, in conjunction with Ag NP-modified Mn3O4 electrodes. The study also introduces a pioneering low-temperature ultrasonication method for the attachment of Ag NPs to Mn3O4, which eliminates the need for a reducing agent. This approach is characterized by its simplicity, cost-effectiveness, and scalability, offering significant advantages over conventional methods. The electrochemical performance of the resulting supercapacitor cells, featuring the modified electrodes and novel GPE, was comprehensively evaluated, yielding a single electrode specific capacitance of 9.38 F g⁻¹, with an energy density of 1.9 Wh kg⁻¹, and a power density of 30.8 W kg⁻¹. The findings demonstrate the potential of this new system to enhance energy storage capabilities, marking a substantial advancement in supercapacitor research, and this study sets the foundation for future investigations into scalable, high-performance energy storage solutions, emphasizing both innovation in material design and process optimization Keywords:
Manganese oxide, Mn3O4, Silver nanoparticles, Ag, Gel polymer electrolyte, Supercapacitor Affiliations:
| Michalska M. | - | Łukasiewicz Research Network‒Institute of Electronic Materials Technology (PL) | | Sarman M. | - | other affiliation | | Sharma J. | - | IPPT PAN | | Kumar C. | - | IPPT PAN | | Sobczak K. | - | other affiliation | | Kumar Singh P. | - | other affiliation | | Jain A. | - | IPPT PAN |
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