Synthesis of a LiMPO4 compound and use as electrode material in a lithium storage battery

US8404305B2 · kind B2 · utility

Assignee

• COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES · FR

Inventors

• Sebastian Patoux · Fontaine, FR
• Carole Pagano · Meylan, FR
• Carole Bourbon · Saint-Michel-de-Saint-Geoirs, FR
• Frederic Le Cras · L'Isle-d'Abeau, FR

Key dates

• Filing date: Mar 12, 2008
• Grant date: Mar 26, 2013
• Expiry date: Mar 22, 2030

Classification

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

Abstract

The LiMPO4 compound is synthesized by reacting a compound of general formula XMPO4, nH2O where X represents a radical selected from —NH4 and —H and M is a transition metal selected from Co, Ni and Mn, with a lithium source such as lithium nitrate, at a temperature lower than or equal to 350° C. The XMPO4, nH2O compound further exhibits a particular morphology in the form of platelets that is preserved during the reaction between the two precursors. The LiMPO4 compound thus synthesized is advantageously used as active material of an electrode for a lithium storage battery.