Johnson Matthey Public Limited Company

Bathium Canada Inc.

Clariant (canada) Inc.

Clariant Corporation

Phostech Lithium Inc.

Johnson Matthey Battery Materials Ltd.

Denis Geoffroy

Michel Gauthier

Nathalie Ravet

Guoxian Liang

Alain Vallee

Patrick Leblanc

Frederic Cotton

Jasmin Dufour

Michel Parent

Thorsten Lahrs

Alain VALLÉE

A material C-AM(XO)that is of particles of a compound of the formula AM(XO), wherein said particles include a carbon deposit deposited by means of pyrolysis on at least a portion of the surface thereof, and where: A is Li alone or partially replaced by at most 10 atomic % of Na or K; M is Fe(II), or Mn(II), or mixtures thereof alone or partially replaced by at most 30 atomic % of one or more metals selected from Mn, Ni and Co and/or at most 5% of Fe(III); XOis POalone or partially replaced by at most 10 molar % of at least one group selected from SO, SiOand MoO; and where said material has a calcium impurity content of lower than about 1000 ppm.

Procedure to optimize materials for cathodes and cathode material having enhanced electrochemical properties

A process for preparing an alkali metal oxyanion electrode material having a carbon coating deposited by a thermal treatment, said process comprising a thermal step under a humidified atmosphere of: (i) said alkali metal oxyanion electrode material having a carbon coating deposited by a thermal treatment; (ii) precursors of said alkali metal oxyanion electrode material and an organic precursor of carbon; or (iii) said alkali metal oxyanion electrode material and an organic precursor of carbon, wherein said thermal step is performed at a temperature in the range of about 300&#xb0; C. to about 950&#xb0; C.

Method for heat treating a carbon coated alkali metal oxyanion electrode material

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Verdun, Canada

Denis Geoffroy