Process for preparing crystalline electrode materials and materials obtained therefrom

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United States of America Patent

PATENT NO 9871245
SERIAL NO

14399233

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Abstract

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There is provided a process for preparing a crystalline electrode material, the process comprising: providing a liquid bath comprising the electrode material in a melted state; and introducing a precursor of the electrode material into the liquid bath, wherein the electrode material comprises lithium, a metal and phosphate. There is also provided a crystalline electrode material, comprising lithium substituted by less than 0.1 atomic of Na or K; Fe and/or Mn, substituted by less than 0.1 atomic ratio of: (a) Mg, Ca, Al and B, (b) Nb, Zr, Mo, V and Cr, (c) Fe(III), or (d) any combinations thereof; and PO4, substituted by less than 20% atomic weight of an oxyanion selected from SO4, SiO4, BO4, P2O7, and any combinations thereof, the material being in the form of particles having a non-carbon and non-olivine phase on at least a portion of the surface thereof.

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Patent Owner(s)

Patent OwnerAddress
JOHNSON MATTHEY BATTERY MATERIALS LTD280 LIBERTE AVENUE CANDIAC QUEBEC J5R 6X1

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chartrand, Patrice Montréal, CA 2 11
Gauthier, Michel La Prairie, CA 103 2154
Liang, Guoxian St-Hyacinthe, CA 30 270
MacNeil, Dean Ottawa, CA 6 134
Wontcheu, Joseph Laval, CA 1 11

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