Hydro-quebec

Nanox Corporation

Andre Van Neste

Robert Schulz

Daniel Guay

Sabin Boily

Jacques Huot

Guy Lalande

Guoxian Liang

Marie-Chantal Denis

Shize Jin

Jean-Pol Dodelet

Jin Shize

A process method for producing a lithium based mixed oxide of the formula LiM&prime; . . . O through the steps of combining a lithium oxide with a second oxide having the base metal element (M&prime;) at room temperature; and applying to the combination, a high energy milling process, wherein the high energy milling process obtains, without the addition of substantial external heat being added to the synthesis, a chemical synthesis of a composite oxide of the above formula, having crystallites of nanometer dimension.

Process for synthesizing noncrystalline lithium based mixed oxides by high energy milling

Leached nanocrystalline materials having a high specific surface are particularly useful for storing hydrogen or as catalysts or electrocatalysts in the manufacture electrodes, especially for fuel cells. Such materials can be manufactured by preparing a nanocrystalline material consisting of a metastable composite or alloy of at least two different chemical elements. To be nanocrystalline, this material must have a crystalline structure with the grain size lower than 100 nm. Then, the so prepared nanocrystalline material can be subjected to a leaching treatment in order to eliminate partially or totally one of the elements of the composite or alloy. This leaching results in nanocrystalline materials having a porous structure and, thereby, the requested high specific surface.

Leached nanocrystalline materials process for manufacture of the same,

Alloys of Ti Ru Fe and O and use thereof for the manufacture of cathodes

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Andre Van Neste