Facile and scalable fabrication of flexible micro-supercapacitor with high volumetric performance based on ultrathin Co(OH)<sub>2</sub> nanosheets

Jagdale, Pallavi Bhaktapralhad; Patil, Sayali Ashok; Pathak, Mansi; Bhol, Prangya; Sfeir, Amanda; Royer, Sébastien; Samal, Akshaya Kumar; Rout, Chandra Sekhar; Saxena, Manav

doi:10.1039/d4ta02916j

J. Mater. Chem. A

2024

DOI: 10.1039/d4ta02916j

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Facile and scalable fabrication of flexible micro-supercapacitor with high volumetric performance based on ultrathin Co(OH)₂ nanosheets

Pallavi Bhaktapralhad Jagdale,

Sayali Ashok Patil,

Mansi Pathak

et al.

Abstract: Flexible and in-plane micro-supercapacitor with high volumetric capacitance based on ultrathin Co(OH)2 nanosheets.

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Cited by 4 publications

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Carbon Nanotube Interconnected Polypyrrole@ E‐MXene Organic‐Inorganic Hybrids for Interdigitated In‐Plane Supercapacitor Applications

Kenz K T,

Lakshmy

et al. 2024

Adv Materials Technologies

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In recent times, there has been a growing focus on developing flexible electrochemical energy storage devices to address the booming demands of wearable electronics. Supercapacitors (SC) are prized among the electrochemical energy storage devices for their remarkable specific capacitance and power density. Conventional flexible SCs predominantly rely on various carbon based materials as electrodes and current collectors for these applications. Despite this, a novel approach is adopted to fabricate a flexible supercapacitor from laser‐induced graphene with a ternary hybrid of polypyrrole with Mxene and carbon nanotube (PPy@E‐MXene/f‐CNT) as an electrode material. The fabricated in‐plane supercapacitor achieves an outstanding specific capacitance of 66.6 mF cm−2 (83.25 mFg−1) with an energy density of 4.5 µWh cm−2 (with a power density of 0.03 mW cm−2). This innovative approach presents a promising avenue for developing flexible and wearable energy storage solutions. Further, Density Functional Theory (DFT) simulations are carried out to support the experimental findings and elucidate the structural, electronic, and electrochemical properties of the hybrid systems.

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Carbon Nanotube Interconnected Polypyrrole@ E‐MXene Organic‐Inorganic Hybrids for Interdigitated In‐Plane Supercapacitor Applications

Kenz K T,

Lakshmy

et al. 2024

Adv Materials Technologies

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Applications of Graphene Derivatives in All‐Solid‐State Supercapacitors

Mombeshora,

Muchuweni,

Hashemi

2024

ChemistrySelect

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The recent progression in electronics and humankind's increased dependence on electronic gadgets have significantly impacted energy supply and demand metrics. In the past, batteries have been able to meet these demands adequately. However, their low power density (Ps) has inspired alternative energy storage advancements that can foster a transition to net‐carbon‐zero via renewables. Supercapacitor (SC) innovations, such as the recent emergence of solid‐state supercapacitors (SSCs), have gained tremendous attention owing to their mechanical robustness, safety, possible flexibility, long cycle life, portability, prospective high Ps, and suitability for advanced energy technologies. Complimentary to the affordable and lightweight material design requirements is the enormous potential of the graphene family in SSCs owing to facile synthesis advantages, easy scalability and, processing high electrical conductivity, low costs, and mechanical robustness among others. Therefore, the review highlights the recent efforts to advance SSCs with the graphene family in electrodes and electrolytes. The work discusses SC basic concepts and main characterization techniques, and applications of the graphene family in both electrolytes and electrodes of SSCs. Finally, the merits, demerits and prospects of incorporating graphene derivatives to advance SSC performance and sustainability are outlined. Key research directions, including machine learning, are also recommended from the reviewed studies.

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Symmetric supercapacitor based on flaky structured Cr2O3 electrodes with excellent power density

Manohara Babu,

Sureshkumar,

Rajeshkumar

et al. 2025

Journal of Alloys and Compounds

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Facile and scalable fabrication of flexible micro-supercapacitor with high volumetric performance based on ultrathin Co(OH)₂ nanosheets

Abstract: Flexible and in-plane micro-supercapacitor with high volumetric capacitance based on ultrathin Co(OH)2 nanosheets.

Cited by 4 publications

References 63 publications

Carbon Nanotube Interconnected Polypyrrole@ E‐MXene Organic‐Inorganic Hybrids for Interdigitated In‐Plane Supercapacitor Applications

Carbon Nanotube Interconnected Polypyrrole@ E‐MXene Organic‐Inorganic Hybrids for Interdigitated In‐Plane Supercapacitor Applications

Applications of Graphene Derivatives in All‐Solid‐State Supercapacitors

Symmetric supercapacitor based on flaky structured Cr2O3 electrodes with excellent power density

Contact Info

Product

Resources

About

Facile and scalable fabrication of flexible micro-supercapacitor with high volumetric performance based on ultrathin Co(OH)2 nanosheets

Abstract: Flexible and in-plane micro-supercapacitor with high volumetric capacitance based on ultrathin Co(OH)2 nanosheets.

Cited by 4 publications

References 63 publications

Carbon Nanotube Interconnected Polypyrrole@ E‐MXene Organic‐Inorganic Hybrids for Interdigitated In‐Plane Supercapacitor Applications

Carbon Nanotube Interconnected Polypyrrole@ E‐MXene Organic‐Inorganic Hybrids for Interdigitated In‐Plane Supercapacitor Applications

Applications of Graphene Derivatives in All‐Solid‐State Supercapacitors

Symmetric supercapacitor based on flaky structured Cr2O3 electrodes with excellent power density

Contact Info

Product

Resources

About

Facile and scalable fabrication of flexible micro-supercapacitor with high volumetric performance based on ultrathin Co(OH)₂ nanosheets