Electrode active material powder with size dependent composition and method to prepare the same
CA 2552375 C · Owner: Lg Energy Solution, Ltd. · Inventors: Paulsen, Jens Martin; Kim, Mun-Ju; Park, Hong-Kyu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a powderous electrode active material of lithium , transition metal oxide Li a M b O2 in which 0.9 < a < 1.1 0.9 < b < 1.1 and , (i) M comprises , at least two transition metal selected from Mn Co and Ni or (ii) M=A z , A'z'M'1-z-z, M'=Mn x Ni y Co1-x-y 0<=y<=1, 0<=x<=1, 0<0.1, z+z'<0.02, A is a metal chosen from Al Mg, Ti, Cr and A' is a further dopant chosen from F CI, S, Zr, Ba, Y, Ca, B, Be, Sn, Na , and Zn. The powderous electrode active material has particles with a distribution of , sizes and and a composition of M varies with the size of the particles. The present , invention also relates to an electrochemical cell particularly a rechargeable , …
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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 December 30, 2004 and granted January 27, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 30, 2024.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
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