The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 05, 2010
Filed:
Nov. 14, 2004
Gerhard Nuspl, Forstern, DE;
Lucia Wimmer, Landshut, DE;
Max Eisgruber, Bruckberg, DE;
Sud-Chemie AG, Munich, DE;
Abstract
The invention describes a process for producing a compound of the formula LiMPO, in which M represents at least one metal from the first transition series, comprising the following steps: a) production of a precursor mixture, containing at least one Lisource, at least one Msource and at least one POsource, in order to form a precipitate and thereby to produce a precursor suspension; b) dispersing or milling treatment of the precursor mixture and/or the precursor suspension until the D90 value of the particles in the precursor suspension is less than 50 μm; and c) the obtaining of LiMPOfrom the precursor suspension obtained in accordance with b), preferably by reaction under hydrothermal conditions. The material obtainable by this process has particularly advantageous particle size distributions and electrochemical properties when used in electrodes.