The paper presents the synthesis and characterization of a 2D hybrid nanocomposite material (h-BN/G/MoS₂) for use as an electrode in supercapacitors. The nanocomposites were prepared using ball milling and sonication methods, and their performance was evaluated through various electrochemical tests. The 5% BN_G@MoS₂_90@10 composite, which consists of h-BN and MoS₂ wrapped around graphene, exhibited high specific capacitance (392 F g⁻¹ at 1 A g⁻¹) and excellent cycling stability (96.4% capacitance retention after 10,000 cycles). A symmetric supercapacitor fabricated using this composite showed a capacitance retention rate of 94.1% after 10,000 cycles, an energy density of 16.4 Wh kg⁻¹, and a power density of 501 W kg⁻¹. The findings indicate that the preparation method is environmentally friendly, scalable, and suitable for mass production, making it a promising candidate for advanced supercapacitor applications.The paper presents the synthesis and characterization of a 2D hybrid nanocomposite material (h-BN/G/MoS₂) for use as an electrode in supercapacitors. The nanocomposites were prepared using ball milling and sonication methods, and their performance was evaluated through various electrochemical tests. The 5% BN_G@MoS₂_90@10 composite, which consists of h-BN and MoS₂ wrapped around graphene, exhibited high specific capacitance (392 F g⁻¹ at 1 A g⁻¹) and excellent cycling stability (96.4% capacitance retention after 10,000 cycles). A symmetric supercapacitor fabricated using this composite showed a capacitance retention rate of 94.1% after 10,000 cycles, an energy density of 16.4 Wh kg⁻¹, and a power density of 501 W kg⁻¹. The findings indicate that the preparation method is environmentally friendly, scalable, and suitable for mass production, making it a promising candidate for advanced supercapacitor applications.