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Expired Canadian patentCanada

Electrode material with enhanced ionic transport properties

CA 2596809 C · Owner: Xu, Chuanjing · Inventors: Xu, Chuanjing; Wixom, Michael

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Abstract From the Canadian patent

Materials useful as electrodes for lithium batteries have very good electronic and ionic conductivities. They are fabricated from a starting mixture which includes a metal, a phosphate ion, and an additive which enhances the transport of lithium ions in the resultant material. The mixture is heated in a reducing environment to produce the material. The additive may comprise a pentavalent metal or a carbon. In certain embodiments the material is a twophase material. Also disclosed are electrodes which incorporate the materials and lithium batteries which incorporate those electrodes.

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed February 3, 2006 and granted December 3, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 3, 2026.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 3, 2006
GrantedDecember 3, 2013
Term endedFebruary 3, 2026
Patent numberCA 2596809 C
Classification (IPC)C01B25/45 +2 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedFeb 3, 2006Patent grantedDec 3, 2013Term endedFeb 3, 2026

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.