| 摘要 |
Provided are high power and high kinetics electrodes for electrochemical devices employing non-aqueous organic electrolyte, solid polymer electrolyte or the like, based upon electrically active materials structured as discrete contacting mesoporous microparticles with a bimodal pore radius distribution, which in addition may contain conductive nanofibres, other active metal inclusions or further coatings, that are linked together by highly porous organic binders and a percolating network of conductive particles and polymers, wherein the microparticles have a first average pore radius smaller than 5 nm and a second average pore radius differing by at least about 5 nm. The porous solid microparticles produced hereby are comprising a three dimensionally substantially continuous inter-penetrating network of interconnected pores. The preferred size of the microparticles is 0.05 mu m to 30 mu m and their preferred specific surface area is 0.01 m<2> /g to 300 m<2> /g. Also provided are processes for preparing these bimodal mesoporous microparticles, for coating selectively their surface with binders and conductors, for forming such porous high kinetics electrodes in a flexible form and uses thereof in various electrochemical devices. <IMAGE> |
