Method of reducing magnetic and/or oxidic contaminants in lithium metal oxygen compounds
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United States of America Patent
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Jan 24, 2017
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Jun 20, 2013
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Jul 4, 2011
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Jul 26, 2010
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Abstract
A method of reducing magnetic and/or oxidic contaminants in lithium metal oxygen compounds in particle form, in order to obtain purified lithium metal oxygen compounds, by means of treatment in a grinding process and sifting process with continuous or non-continuous removal and obtaining of the purified lithium metal oxygen compound. The grinding process and sifting process are terminated prematurely before the residue amounts to less than 1% of the quantity m. The residue, containing contaminants, is discarded.
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