Max-planck-gesellschaft Zur F&#xf6;rderung Der Wissenschaften E. V.

Yu-Guo Guo

Joachim Maier

Markus Antonietti

Lizhen Fan

Philipp Adelhelm

Yong-Sheng Hu

Bernd Smarsly

An extremely high-performance polyaniline electrode was prepared by potentiostatic deposition of aniline on hierarchically porous carbon monolith (HPCM), which was carbonized from mesophase pitch. A capacitance value of 2200 F gof polyaniline was obtained at a power density of 0.47 kW kgand an energy density of 300 Wh kg. This active material deposited on HPCM also has an advantageous high stability. These superior advantages can be attributed to the backbone role of HPCM. This method also has the advantages of not introducing any binder, thus contributing to the increase of ionic conductivity and power density. High specific capacitance, high power and energy density, high stability, and low cost of active material make it very promising for supercapacitors.

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Stuttgart, Germany

Yu-Guo Guo