Copper-based Para-Phthalic Acid Metal-Organic Framework: An efficient anodic material for super-capattery hybrid systems.

The battery-supercapacitor hybrid, an asymmetric energy storage system, has garnered considerable attention due to its outstanding energy storage capabilities. Anodic materials have become a central focus, driven by the quest for enhanced energy density, power density, cycle life, and overall performance. In this study, we have synthesized copper-based para -phthalic acid (PTA) metal-organic frameworks (MOFs) via a facile hydrothermal method to be employed as the positive electrode material in a battery-supercapacitor hybrid matrix. The initial testing indicates the battery-type nature of the prepared electrode along with maximum specific capacity of 260.5 C g−1 at 0.7 A g−1. Subjection of Cu-PTA MOF electrode to real device configuration (Super-capattery device) results in considerable specific capacity of 152.2 C g−1 along with specific energy and power of 35.9 Wh kg−1 and 5950 W kg−1, respectively at 0.3 A g−1. The device also demonstrated a stability potential of 92.15 % when tested for 5000 continuous charge-discharge cycles. The present study presents Cu-PTA MOF an exciting addition for advancing current state of research in the field of energy storage technology. [Display omitted] • Copper MOFis synthesized by hydrothermal approach to be utilized as positive electrode material in battery supercapacitor hybrid matrix. • The electrode demonstrated the maximum specific capacity of 260.5 C g−1 at 0.7 A g−1. • Subjection of MOF electrode to real device results in specific capacity of 152.2 C g−1 along with specific energy and power of 35.9 Wh kg−1 and 5950 W kg−1. • The device also demonstrated a stability potential of 92.15 % when tested for 5000 cycles. [ABSTRACT FROM AUTHOR]