发明名称 |
METHOD OF RECOVERING VALUABLE SUBSTANCE FROM LITHIUM SECONDARY BATTERY, AND RECOVERY APPARATUS THEREFOR |
摘要 |
<p>A valuable-substance recovery method according to the present invention includes: a solvent peeling step (S3) of dissolving a resin binder included in an electrode material by immersing crushed pieces of a lithium secondary battery into a solvent, so as to peel off the electrode material containing valuable substances from a metal foil constituting the electrode; a filtering step (S4) of filtering a suspension of the solvent, so as to separate and recover the electrode material containing the valuable substances and a carbon material; a heat treatment step (S5) of heating the recovered electrode material containing the valuable substances and the carbon material, under an oxidative atmosphere, so as to burn and remove the carbon material; and a reducing reaction step (S6) of immersing the resultant electrode material containing the valuable substances into a molten salt of lithium chloride containing metal lithium, so as to perform a reducing reaction.</p> |
申请公布号 |
EP1981115(A1) |
申请公布日期 |
2008.10.15 |
申请号 |
EP20060712908 |
申请日期 |
2006.02.02 |
申请人 |
KAWASAKI PLANT SYSTEMS KABUSHIKI KAISHA |
发明人 |
KAKUTA, TOSHIYA;YAMAZAKI, SEIICHIRO |
分类号 |
H01M10/54 |
主分类号 |
H01M10/54 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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