H - Electricity – 01 – M
Patent
H - Electricity
01
M
H01M 4/66 (2006.01) H01M 6/02 (2006.01)
Patent
CA 2566142
The invention relates to a component (1; 10; 200) for an accumulator (4, 6) or for a supercondenser, said component comprising at least one electron collector (100) and an active material (102) containing at least one transition metal and having been formed at least partially from the collector (100). The active material (102) is at least partially at the surface (100a) of the electron collector (100), and at least part of the active material (102) comprises nanoparticles (101) of at least one compound of the transition metal or agglomerates of said nanoparticles (101), the nanoparticles (101) having an average size of between 1 and 1,000 nm, and the agglomerates of nanoparticles (101) having an average size of between 1 and 10,000 nm. The invention also relates to a method for producing one such component (1, 10), and to a supercondenser and a preferably lithium electrochemical accumulator (4, 6) comprising one such component (1, 10).
L'invention a pour objet un composant (1; 10; 200) pour accumulateur (4, 6) ou pour supercondensateur, comprenant au moins un collecteur d'électrons (100) et de la matière active (102) contenant au moins un métal de transition et ayant au moins en partie été formée à partir du collecteur (100), la matière active (102) étant au moins en partie en surface (100a) du collecteur d'électrons (100), et au moins une partie de la matière active (102) comprenant des nanoparticules (101) d'au moins un composé du métal de transition ou des agglomérats desdites nanoparticules (101), les nanoparticules (101) étant de taille moyenne de 1 à 1000 nm , et les agglomérats de nanoparticules (101) étant de taille moyenne de 1 à 10000 nm .Procédé de fabrication d'un tel composant (1, 10). Supercondensateur et accumulateur électrochimique (4, 6) de préférence au lithium comprenant un tel composant (1, 10).
Grugeon Sylvie
Laruelle Stephane
Tarascon Jean-Marie
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Electricite de France
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