Powdered NiaM1bM2c(O)x(OH)y compounds, method for the production thereof and use thereof in batteries

US9028710B2 · kind B2 · utility

Assignee

• H.C. STARCK INC. · US

Inventors

• Matthias Jahn · Goslar, DE
• Gerd Maikowske · Goslar, DE
• Stefan Malcus · Goslar, DE
• Juliane Meese-Marktscheffel · Goslar, DE
• Armin Olbrich · Seesen, DE
• Rüdiger Zertani · Goslar, DE

Key dates

• Filing date: Jul 23, 2008
• Grant date: May 12, 2015
• Expiry date: Dec 30, 2031

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/2982
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The invention is directed to a pulverulent compound of the formula NiaM1bM2cOx(OH)y where M1 is at least one element selected from the group consisting of Fe, Co, Zn, Cu and mixtures thereof, M2 is at least one element selected from the group consisting of Mn, Al, Cr, B, Mg, Ca, Sr, Ba, Si and mixtures thereof, 0.3≦a≦0.83, 0.1≦b≦0.5, 0.01≦c≦0.5, 0.01≦x≦0.99 and 1.01≦y≦1.99, wherein the ratio of tapped density measured in accordance with ASTM B 527 to the D50 of the particle size distribution measured in accordance with ASTM B 822 is at least 0.2 g/cm3·μm. The invention is also directed to a method for the production of the pulverulent compound and the use as a precursor material for producing lithium compounds for use in lithium secondary batteries.