The paper presents a novel three-dimensional holey graphene framework (HGF) designed as a binder-free supercapacitor electrode. The HGF, with its hierarchical porous structure, offers a large ion-accessible surface area, efficient electron and ion transport pathways, and a high packing density. This results in a gravimetric capacitance of 298 Fg\(^{-1}\) and a volumetric capacitance of 212 Fcm\(^{-3}\) in organic electrolyte. The fully packaged device stack delivers gravimetric and volumetric energy densities of 35 Whkg\(^{-1}\) and 49 Whl\(^{-1}\), respectively, approaching those of lead-acid batteries. The HGF's unique structure, which includes nanopores and a highly interconnected 3D network, ensures efficient ion transport and high electrical conductivity, making it an ideal material for high-performance EC electrodes. The study bridges the gap between traditional supercapacitors and batteries, opening up new opportunities for mobile power supply in various applications.The paper presents a novel three-dimensional holey graphene framework (HGF) designed as a binder-free supercapacitor electrode. The HGF, with its hierarchical porous structure, offers a large ion-accessible surface area, efficient electron and ion transport pathways, and a high packing density. This results in a gravimetric capacitance of 298 Fg\(^{-1}\) and a volumetric capacitance of 212 Fcm\(^{-3}\) in organic electrolyte. The fully packaged device stack delivers gravimetric and volumetric energy densities of 35 Whkg\(^{-1}\) and 49 Whl\(^{-1}\), respectively, approaching those of lead-acid batteries. The HGF's unique structure, which includes nanopores and a highly interconnected 3D network, ensures efficient ion transport and high electrical conductivity, making it an ideal material for high-performance EC electrodes. The study bridges the gap between traditional supercapacitors and batteries, opening up new opportunities for mobile power supply in various applications.