Apparatus and method of recovering lithium cobalt oxide from spent lithium batteries
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United States of America Patent
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Jan 18, 2005
Grant Date -
Dec 4, 2003
app pub date -
Oct 31, 2002
filing date -
Jun 3, 2002
priority date (Note) -
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Abstract
An apparatus and method is provided for recovering lithium cobalt oxide from spent lithium batteries. The method of recovering lithium cobalt oxide comprises the steps of: separating the cathodes from spent lithium batteries by dismantling; producing lithium cobalt oxide by reacting the cathodes with a strong alkali solution under a certain hydrothermal condition; cooling the lithium cobalt oxide to crystallize; and cleansing the synthesized lithium cobalt oxide to remove foreign objects. The apparatus for recovering lithium cobalt oxide comprises a reactor main body 300 having a sealing cap 320 on the upper section and an agitator 130; an outer reaction container 200 installed inside the reactor main body 300; and an inner reaction container 100 installed inside the outer reaction container 200. The inner reaction container 100 comprises a plurality of holes on the upper section and a separating cap 240. A reaction container holder 230 mutually supports the outer reaction container 200 and the inner reaction container 100.
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