For the development of next-generation portable energy storage devices, compression-tolerant electrodes are essential, but most of the previous reports have focused only on carbon-based materials. Herein, gelatin methacrylate (GelMA) and poly(N-isopropylacrylamide) (PNIIPAM) were used as hosts to incorporate the Co3O4@MoS2 aerogel (Co3O4@MoS2 AG). GelMa-PNIPAM (GP) was transformed into a carbon network as an intrinsically compressible host template with high conductivity. The as-prepared electrode possesses a reversible compressive strain of 80% with excellent durability. Density functional theory (DFT) calculations show that the Co3O4@MoS2-AG heterostructure exhibits high electronic conductivity, low adsorption energy for OH- ions, and fast electron transfer capacity, which enhance the electrochemical performance with a high specific capacitance of 1026.9 at 1 A g-1 and a remarkable cycling stability of 80.8% after 10,000 charge-discharge cycles. Besides, the assembled asymmetric supercapacitor based on compressible Co3O4@MoS2 AG/RGO exhibits a stable energy storage performance under different compressive strains and after 100 compression-release cycles. The results of this study demonstrate the potential of a metal-based electrode with high energy storage properties for wearable devices.

Department Chemical Engineering and Applied Chemistry Chungnam National University Daejeon 34134 South Korea

Department Chemistry Chungnam National University Daejeon 34134 South Korea

Department of Chemistry and Physico Chemical Processes Faculty of Materials Science and Technology VSB Technical University of Ostrava 17 listopadu 2172 15 708 00 Ostrava Poruba Czech Republic

Faculty of Chemical Technology and Engineering Bydgoszcz University of Science and Technology Seminaryjna 3 Street 85 326 Bydgoszcz Poland

Faculty of Chemistry University of Warsaw Pasteura 1 Str 02 093 Warsaw Poland

Helmaco Sp Z o o Company Ostrobramska 101 335 K 04 041 Warszawa Poland

Institute of Fundamental Technological Research Polish Academy of Sciences Pawinskiego 5B Str 02 106 Warsaw Poland

Laboratory of Polymers and Biomaterials Institute of Fundamental Technological Research Polish Academy of Sciences Pawinskiego 5B 02 106 Warsaw Poland

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