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    PROCESS FOR THE RECYCLING OF SPENT LITHIUM ION CELLS
    4.
    发明申请
    PROCESS FOR THE RECYCLING OF SPENT LITHIUM ION CELLS 审中-公开

    公开(公告)号：WO2020011765A1

    公开(公告)日：2020-01-16

    申请号：PCT/EP2019/068357

    申请日：2019-07-09

    Applicant: BASF SE

    Inventor： ROHDE, Wolfgang ,  ADERMANN, Torben ,  SCHIERLE-ARNDT, Kerstin ,  GERKE, Birgit

    IPC: C22B1/00 ,  C22B7/00 ,  C22B3/00 ,  C22B26/12 ,  C22B47/00

    Abstract: Process for the recovery of transition metal from spent lithium ion batteries containing nickel, wherein said process comprises the steps of (a) heating a lithium containing transition metal oxide material to a temperature in the range of from 200 to 900°C in the presence of H 2 , (b) treatment of the product obtained in step (a) with an aqueous medium, (c) solid-solid separation for the removal of Ni from the solid residue of step (b), (d) recovery of Li as hydroxide or salt from the solution obtained in step (b), (e) extraction of Ni and, if applicable, Co from the solid Ni-concentrate obtained in step (c).

    PROCESS FOR MAKING A DOPED CATHODE ACTIVE MATERIAL
    5.
    发明申请
    PROCESS FOR MAKING A DOPED CATHODE ACTIVE MATERIAL 审中-公开

    公开(公告)号：WO2022069236A1

    公开(公告)日：2022-04-07

    申请号：PCT/EP2021/075438

    申请日：2021-09-16

    Applicant: BASF SE

    Inventor： ERK, Christoph ,  SOMMER, Heino ,  MICHEL, Kathrin ,  RAUSCHER, Frank ,  BORN, Nils-Olof, Joachim ,  ROHDE, Wolfgang ,  SUELING, Carsten ,  GERKE, Birgit

    IPC: C01G53/00

    Abstract: Process for the manufacture of a fluoride doped cathode active material wherein said process comprises the steps of (a) providing a particulate oxide or (oxy)hydroxide of TM wherein TM comprises nickel and at least one metal selected from cobalt and manganese, wherein said particulate oxide or (oxy)hydroxide has an average particle diameter (D50) in the range of from 3 to 16 µm, (b) providing a source of lithium that contains 0.01 to 2.5 % by weight of fluoride, uniformly dispersed within said source of lithium, (c) mixing said oxide or (oxy)hydroxide of TM with said fluoride-containing source of lithium and, optionally, with additional source of lithium containing less fluoride, and, optionally, with one or more dopants based on at least one metal other than lithium, (d) treating the mixture obtained from step (c) thermally.

    PROCESS FOR THE RECOVERY OF LITHIUM AND OTHER METALS FROM WASTE LITHIUM ION BATTERIES
    6.
    发明申请
    PROCESS FOR THE RECOVERY OF LITHIUM AND OTHER METALS FROM WASTE LITHIUM ION BATTERIES 审中-公开

    公开(公告)号：WO2021018796A1

    公开(公告)日：2021-02-04

    申请号：PCT/EP2020/071035

    申请日：2020-07-24

    Applicant: BASF SE

    Inventor： ROHDE, Wolfgang ,  GERKE, Birgit ,  VOGELSANG, Regina ,  VOGES, Matthias ,  SCHIERLE-ARNDT, Kerstin ,  SEELER, Fabian ,  ADERMANN, Torben

    IPC: C22B7/00 ,  C22B26/12 ,  C22B3/12 ,  C22B23/00 ,  C22B3/00

    Abstract: A process for the recovery of one or more transition metals and lithium from waste lithium ion batteries or parts thereof is disclosed. The process comprising the steps of (a) providing a particulate material containing a transition metal compound and/or transition metal, wherein the transition metal is selected from the group consisting of Ni and Co, and wherein further at least a fraction of said Ni and/or Co, if present, are in an oxidation state lower than +2, e.g. in the metallic state; which particulate material further contains a lithium salt; (b) treating the material provided in step (a) with a polar solvent and optionally an alkaline earth hydroxide; (c) separating the solids from the liquid, optionally followed by a solid-solid separation step; and (d) treating the solids containing the transition metal in a way to dissolve at least part of the Ni and/or Co, typically using a mineral acid, provides good separation of lithium in high purity and of transition metal useful for the production of battery cathode active materials.

    BATTERY RECYCLING BY HYDROGEN GAS INJECTION IN LEACH
    9.
    发明申请
    BATTERY RECYCLING BY HYDROGEN GAS INJECTION IN LEACH 审中-公开

    公开(公告)号：WO2020109045A1

    公开(公告)日：2020-06-04

    申请号：PCT/EP2019/081608

    申请日：2019-11-18

    Applicant: BASF SE

    Inventor： ROHDE, Wolfgang ,  ADERMANN, Torben ,  GERKE, Birgit

    IPC: C22B7/00 ,  B22F9/26 ,  C22B3/00

    Abstract: The present invention relates to a process for the recovery of transition metals from batteries comprising (a) treating a transition metal material with a leaching agent to yield a leach which contains dissolved salts of nickel and/or cobalt, (b) injecting hydrogen gas in the leach at a temperature above 100 °C and a partial pressure above 5 bar to precipitate nickel and/or cobalt in elemental form, and (c) separation of the precipitate obtained in step (b).

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