Method for the recovery of lithium cobalt oxide from lithium ion batteries
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United States of America Patent
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May 15, 2018
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Jun 19, 2012
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Jun 21, 2011
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Abstract
A method of recovering lithium cobalt oxide from spent lithium ion batteries, wherein said method is more environmentally friendly than the methods presently known in the art. The method includes a froth flotation step using renewable and biodegradable solvents such as terpenes and formally hydrated terpenes. The method can also include a relithiation step to return the Li:Co ratio back to about 1:1 for use in second-life applications.
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