C - Chemistry – Metallurgy – 01 – B
Patent
C - Chemistry, Metallurgy
01
B
C01B 25/30 (2006.01) C01B 25/00 (2006.01) H01M 4/00 (2006.01)
Patent
CA 2603862
The invention relates to a crystalline ion-conducting material made of LiMPO4 nanoparticles, wherein M is selected from Cr, Mn, Co, Fe and Ni, in addition to mixtures thereof and the nanoparticles have an essentially flat prismatic shape. The invention also relates to a method for producing said type of crystalline ion-conducting material which consists of the following steps: a precursor component is produced in a solution from a lithium compound of a component containing metal ions M and a phosphate compound, the precursor compound is subsequently precipitated from the solution and, optionally, a suspension of the precursor compound is formed, the precursor compound and/or the suspension is dispersed and/or ground, and the precursor compound and/or the suspension is converted under hydrothermal conditions and subsequently, the crystalline material is extracted.
L'invention concerne un matériau cristallin conduisant les ions composé de nanoparticules de LiMPO4, M étant choisi parmi Cr, Mn, Co, Fe et Ni et des mélanges de ceux-ci, et les nanoparticules présentant essentiellement la forme d'un prisme plat. L'invention concerne également un procédé de fabrication d'un tel matériau cristallin conduisant les ions, consistant à fabriquer un composé précurseur en solution, constitué d'un composé de lithium, d'un composé contenant des ions métalliques M et d'un composé de phosphate, à précipiter ensuite le composé précurseur à partir de la solution, à former éventuellement une suspension du composé précurseur, à disperser et/ou broyer le composé précurseur et/ou la suspension, à transformer le composé précurseur et/ou la suspension dans des conditions hydrothermiques, et à extraire finalement le matériau cristallin.
Eisgruber Max
Nuspl Gerhard
Schall Norbert
Vogler Christian
Wimmer Lucia
Sued-Chemie Ag
Zsigmond Otto
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