METHOD FOR MAKING LITHIUM IRON PHOSPHATE
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Jan 31, 2016
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Aug 15, 2013
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A method for making a lithium iron phosphate suitable for use as a cathode active material comprises providing a lithium ion source solution and an iron phosphate, the lithium ion source solution comprising an organic solvent and a lithium chemical compound dissolved in the organic solvent. The lithium ion source solution and the iron phosphate are mixed and the mixture heated at a first temperature under a normal pressure to form a precursor solution, the first temperature being in a range from about 40° C. to about 90° C. The precursor solution is placed in a solvothermal reaction reactor and heated at a second temperature to form the lithium iron phosphate particles, the second temperature being higher than the first temperature.
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