Flexible Solid-State Supercapacitors Based on Carbon Nanoparticles/MnO2 Nanorods Hybrid Structure

• DOI: 10.1021/nn2041279
• Publication Date: 2011-12-19T15:04:48Z
• Authors: Longyan Yuan; Xi-Hong Lu; Xu Xiao; Teng Zhai; Junjie Dai; Fengchao Zhang; Bin Hu; Xue Wang; Li Gong; Jian Chen; Chenguo Hu; Yexiang Tong; Jun Zhou; Zhong Lin Wang
• Keywords: Oxides; Equipment Design; 02 engineering and technology; Electric Capacitance; 7. Clean energy; Nanostructures; Equipment Failure Analysis; Electric Power Supplies; Energy Transfer; Manganese Compounds; Particle Size; Crystallization; 0210 nano-technology

A highly flexible solid-state supercapacitor was fabricated through a simple flame synthesis method and electrochemical deposition process based on a carbon nanoparticles/MnO(2) nanorods hybrid structure using polyvinyl alcohol/H(3)PO(4) electrolyte. Carbon fabric is used as a current collector and electrode (mechanical support), leading to a simplified, highly flexible, and lightweight architecture. The device exhibited good electrochemical performance with an energy density of 4.8 Wh/kg at a power density of 14 kW/kg, and a demonstration of a practical device is also presented, highlighting the path for its enormous potential in energy management.