About 10 results
https://drivepatents.com/patents/1386069 · 29 Apr 2026
The present application belongs to the field of lithium battery technology, particularly relating to a preparation method for ultra-high compacted lithium iron phosphate cathode material and lithium battery. The method comprises: obtaining an iron-containi...
https://drivepatents.com/patents/1392248 · 14 Jan 2026
The invention relates to a method of recovering a lithium precursor from a cathode active material of a lithium secondary battery, the method comprising providing a first electrode to include the active material, and a second electrode. The first electrode...
https://drivepatents.com/patents/1387368 · 1 Oct 2025
The present disclosure provides a method for preparing lithium iron phosphate from ferric hydroxyphosphate, including: purifying ferrous sulfate to form a ferrous sulfate solution, adding hydrogen peroxide, phosphoric acid, an ammonium dihydrogen phosphate...
https://drivepatents.com/patents/966081 · 17 Dec 2014
The present invention relates to lithium salts of formula Li 2 SO 4 , Li 3 PO 4 and Li 4 SiO 4 in which a fraction of the oxygen from the polyanionic framework is replaced by nitrogen, and which are also associated with a transition metal, its use as elect...
https://drivepatents.com/patents/966354 · 10 Dec 2014
Ferrous (II) phosphate (Fe(PO)) powders, lithium iron phosphate (LiFePO) powders for a Li-ion battery and methods for manufacturing the same are provided. The ferrous (II) phosphate powders are represented by the following formula (I): FeM(PO)·yHO (I) whe...
https://drivepatents.com/patents/974452 · 28 May 2014
A preparation method of a battery composite material includes steps of providing phosphoric acid, iron powder, a carbon source and a first reactant, processing a reaction of the phosphoric acid and the iron powder to produce a first product, calcining the ...
https://drivepatents.com/patents/987832 · 7 Aug 2013
Provided are a lithium iron phosphate composite material, the production method thereof and the use thereof. The lithium iron phosphate composite material has a micro-size particle structure, which contains nano-size grains of lithium iron phosphate and gr...
https://drivepatents.com/patents/1000319 · 18 Jul 2012
The present invention relates to ferric phosphate hydrate particles for use as a precursor of olivine type lithium iron phosphate particles, wherein the ferric phosphate hydrate particles exhibit at least one crystal structure selected from the group consi...
https://drivepatents.com/patents/1075982 · 13 Jul 2005
A method for producing a cathode material for a lithium battery, characterized in that it comprises admixing a compound liberating a phosphate ion in a solution and metallic iron, and dissolving the metallic iron, followed by firing , thereby synthesizing ...
https://drivepatents.com/patents/1100106 · 27 Nov 2002
The invention concerns the manufacture and use of phosphates of transition metals as positive electrodes for secondary lithium batteries and discloses a process for the production of LiMPO4 with controlled size and morphology, M being FexCoyNizMnw, with 0...