COMPONENT COMPRISING AN ELECTRON COLLECTOR AND AN ACTIVE MATERIAL, AND THE USE THEREOF AS A BATTERY ELECTRODE

摘要

The invention relates to a component for an accumulator or for a supercondenser, said component comprising at least one election collector and an active material containing at least one transition metal and having been formed at least partially from the collector. The active material is at least partially at the surface of the electron collector, and at least part of the active material comprises nanoparticles of at least one compound of the transition metal or agglomerates of said nanoparticles, the nanoparticles having an average size of between 1 and 1,000 nm, and the agglomerates of nanoparticles having an average size of between 1 and 10,000 nm. The invention also relates to a method for producing one such component, and to a supercondenser and a preferably lithium electrochemical accumulator comprising one such component