• Khan, Rizwan
• Mumtaz, Sohail
• Islam, Mohammad Shahidul
• Yaqoob, M. Z.
• Afzal, Amir Muhammad
• Munnaf, Shaik Abdul
• Sajad, Rida
• Muzaffar, Nimra
• Imran, Muhammad
• Iqbal, Muhammad Waqas

Abstract

<jats:p>The hybrid supercapacitor combines the outstanding energy density characteristics of batteries with the remarkable durability and unique power characteristics of supercapacitors (SCs). Herein, a hydrothermal technique was applied to produce nickel-copper sulfide (NiCuS), which was later physically embedded into carbon nanotubes. In this study, a three and two electrode measurement systems were studied. To confirm the battery type nature of the electrode materials, a three-electrode assembly was used. For hybrid device, a two-electrode measurement scheme was employed. In the three-electrode setup, the NiCuS@CNT composite revealed a superior specific capacity (Qs) of 1110.0 C g<jats:sup>−1</jats:sup>. The NiCuS@CNT//AC nanocomposite based hybrid device established a remarkable Qs of 620.9 C g<jats:sup>−1</jats:sup>. Additionally, the NiCuS@CNT//AC exhibited a remarkable energy density (E<jats:sub>d</jats:sub>) of 29.5 Wh kg<jats:sup>−1</jats:sup> and a power density (P<jats:sub>d</jats:sub>) of 2165.0 W kg<jats:sup>−1</jats:sup>.This composite material is distinguished for its remarkable capacity retention, maintaining an amazing 88.2% of its capacity after 8000 cycles. This emphasizes its continued stability and the possibility of having a longer operating lifespan. By advancing energy storage technologies, this dynamic integration might provide brand-new, exciting opportunities.</jats:p>

Topics

• nanocomposite
• density
• impedance spectroscopy
• Carbon
• energy density
• nickel
• nanotube
• copper
• durability