REUSE METHOD OF ACTIVE MATERIAL OF POSITIVE ELECTRODE SCRAP
Provided is a method for recovering and reusing an active material from a positive electrode scrap. The method for reusing a positive electrode active material, includes the steps of: heat treating a positive electrode scrap including a lithium transition metal composite oxide positive electrode act...
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| creator | PARK, Se-Ho LEE, Jeong-Bae KIM, Min-Seo SEONG, Eun-Kyu SEO, Yong-Sik YANG, Doo-Kyung |
| description | Provided is a method for recovering and reusing an active material from a positive electrode scrap. The method for reusing a positive electrode active material, includes the steps of: heat treating a positive electrode scrap including a lithium transition metal composite oxide positive electrode active material layer including nickel, cobalt and manganese or aluminum on a current collector to perform thermal decomposition of the binder and conductive material in the active material layer, thereby separating the current collector from the active material layer and recovering the active material in the active material layer; primarily washing the recovered active material with an aqueous lithium compound solution showing alkalinity in an aqueous solution state; adding a lithium precursor to the washed active material and carrying out annealing; secondarily washing the annealed active material; and subjecting the secondarily washed active material to surface coating to obtain a reusable active material. |
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The method for reusing a positive electrode active material, includes the steps of: heat treating a positive electrode scrap including a lithium transition metal composite oxide positive electrode active material layer including nickel, cobalt and manganese or aluminum on a current collector to perform thermal decomposition of the binder and conductive material in the active material layer, thereby separating the current collector from the active material layer and recovering the active material in the active material layer; primarily washing the recovered active material with an aqueous lithium compound solution showing alkalinity in an aqueous solution state; adding a lithium precursor to the washed active material and carrying out annealing; secondarily washing the annealed active material; and subjecting the secondarily washed active material to surface coating to obtain a reusable active material.</description><language>eng ; fre ; ger</language><subject>BASIC ELECTRIC ELEMENTS ; CHEMISTRY ; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F ; ELECTRICITY ; FERROUS OR NON-FERROUS ALLOYS ; INORGANIC CHEMISTRY ; METALLURGY ; PRETREATMENT OF RAW MATERIALS ; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY ; PRODUCTION AND REFINING OF METALS ; TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><creationdate>2023</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20231206&DB=EPODOC&CC=EP&NR=4287353A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,778,883,25547,76298</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20231206&DB=EPODOC&CC=EP&NR=4287353A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>PARK, Se-Ho</creatorcontrib><creatorcontrib>LEE, Jeong-Bae</creatorcontrib><creatorcontrib>KIM, Min-Seo</creatorcontrib><creatorcontrib>SEONG, Eun-Kyu</creatorcontrib><creatorcontrib>SEO, Yong-Sik</creatorcontrib><creatorcontrib>YANG, Doo-Kyung</creatorcontrib><title>REUSE METHOD OF ACTIVE MATERIAL OF POSITIVE ELECTRODE SCRAP</title><description>Provided is a method for recovering and reusing an active material from a positive electrode scrap. 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| subjects | BASIC ELECTRIC ELEMENTS CHEMISTRY COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F ELECTRICITY FERROUS OR NON-FERROUS ALLOYS INORGANIC CHEMISTRY METALLURGY PRETREATMENT OF RAW MATERIALS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY PRODUCTION AND REFINING OF METALS TREATMENT OF ALLOYS OR NON-FERROUS METALS |
| title | REUSE METHOD OF ACTIVE MATERIAL OF POSITIVE ELECTRODE SCRAP |
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