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https://drivepatents.com/patents/1114549 · 28 May 2026
One embodiment provides a method of selectively recovering lithium from a waste cathode active material, the method including: a step of mixing and calcining a waste cathode active material and a carbon source; a step of leaching a valuable metal in the ca...
https://drivepatents.com/patents/1114550 · 28 May 2026
Provided is a method for extracting and recovering high-purity lithium carbonate and iron phosphate from a spent lithium battery material. The method includes the following steps. In a first extraction stage, the iron phosphate feature data is input into a...
https://drivepatents.com/patents/1396882 · 21 Aug 2024
The present invention relates to a method for making a transition metal oxide coated with an at least partially amorphous lithium-containing coating and a method for making an at least partially amorphous lithium-containing powder as well as the coated tra...
https://drivepatents.com/patents/967037 · 26 Nov 2014
Disclosed are a cathode active material represented by Formula 1 below and including a metal cation having a greater ionic radius than a Ni cation and represented by M of Formula 1 at a Li cation site or in an empty space within a crystal lattice so as to ...
https://drivepatents.com/patents/986601 · 25 Sep 2013
The present disclosure provides a method of preparing highly pure lithium carbonate from brine. The method includes adding an adsorbent to the brine, from which the magnesium ions Mg 2+ have been removed, to adsorb lithium ions Li + to the adsorbent, follo...
https://drivepatents.com/patents/1015890 · 9 Feb 2011
Preparation of lithium carbonate, as part of a lithium-ion battery recovering process, comprising: a first step of cleaning an organic phase containing nickel and lithium, prepared by a solvent extraction, by use of a sulfuric acid solution containing nick...