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    PROCESS FOR MAKING A COATED ELECTRODE ACTIVE MATERIAL
    1.
    发明申请
    PROCESS FOR MAKING A COATED ELECTRODE ACTIVE MATERIAL 有权

    公开(公告)号：US20210020926A1

    公开(公告)日：2021-01-21

    申请号：US16976252

    申请日：2019-02-18

    申请人： BASF SE

    发明人： Benedikt KALO ,  Torsten MAEURER ,  Regina VOGELSANG

    IPC分类号： H01M4/36 ,  H01M4/505 ,  H01M4/525 ,  H01M4/62 ,  H01M10/0525

    摘要： Process for making a coated electrode active material wherein said process comprises the following steps: (a) providing a particulate electrode active material according to general formula Li1+xTM1−xO2, wherein TM is a combination of Ni, Co and, optionally, Mn, and, optionally, at least one metal selected from Mg, Al, Ba, Ti and Zr, and x is in the range of from zero to 0.2, wherein at least 15 mole-% of the transition metal of TM is Ni, (b) treating said electrode active material with a compound of M1, wherein M1 is selected from Li, Al, B, Mg, Si, Sn, and from transition metals, or a combination of at least two of the foregoing, with or without a solvent, wherein said compound of M1 does not act as a cathode active material on its own, (c) optionally, removing compound of M1 which is not deposited on said particulate electrode active material, (d) performing a post-treatment by heating the material obtained after the step (b) or (c), if applicable, at a temperature from 300 to 800° C. in a rotary kiln or pendulum kiln.

    PROCESS FOR THE RECOVERY OF LITHIUM AND OTHER METALS FROM WASTE LITHIUM ION BATTERIES
    3.
    发明申请
    PROCESS FOR THE RECOVERY OF LITHIUM AND OTHER METALS FROM WASTE LITHIUM ION BATTERIES 有权

    公开(公告)号：US20220352570A1

    公开(公告)日：2022-11-03

    申请号：US17625788

    申请日：2020-07-24

    申请人： BASF SE

    发明人： Wolfgang ROHDE ,  Birgit GERKE ,  Kerstin SCHIERLE-ARNDT ,  Matthias VOGES ,  Regina VOGELSANG ,  Fabian SEELER ,  Gareth SMITH ,  Torben ADERMANN

    IPC分类号： H01M10/54 ,  C22B26/12 ,  C22B7/00 ,  C22B23/02

    摘要： 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 smelting furnace to obtain a metal melt containing Ni and/or Co provides good separation of transition metal as alloy and of lithium in high purity.

    PROCESS FOR MAKING AN ELECTRODE ACTIVE MATERIAL, AND ELECTRODE ACTIVE MATERIAL
    7.
    发明申请
    PROCESS FOR MAKING AN ELECTRODE ACTIVE MATERIAL, AND ELECTRODE ACTIVE MATERIAL 有权

    公开(公告)号：US20210083285A1

    公开(公告)日：2021-03-18

    申请号：US16968322

    申请日：2019-01-31

    申请人： BASF SE

    发明人： Heino SOMMER ,  Maraike AHLF ,  Jacob HAAG ,  Regina VOGELSANG ,  Fatih CETINEL

    IPC分类号： H01M4/525 ,  H01M10/0525 ,  H01M4/505 ,  H01M4/36 ,  H01M4/62 ,  C01G53/00

    摘要： Process for making a partially coated electrode active material wherein said process comprises the following steps: (a) Providing an electrode active material according to general formula Li1+x, TM1+XO2, wherein TM is a combination of Ni, Co and, optionally, Mn, and, optionally, at least one metal selected from Al, Ti and Zr, and x is in the range of from zero to 0.2, wherein at least 60 mole-% of the transition metal of TM is Ni, and wherein said electrode active material has a residual moisture content in the range of from 50 to 1,000 ppm, (b) treating said electrode active material with a metal alkoxide or metal halide or metal amide or alkyl metal compound, (c) treating the material obtained in step (b) with moisture, (d) repeating the sequence of steps (b) and (c) twice to ten times, (e) performing a post-treatment by heating the material obtained after the last step (d) at a temperature from 200 to 400° C.

    PROCESS FOR THE RECOVERY OF LITHIUM AND OTHER METALS FROM WASTE LITHIUM ION BATTERIES
    8.
    发明申请
    PROCESS FOR THE RECOVERY OF LITHIUM AND OTHER METALS FROM WASTE LITHIUM ION BATTERIES 有权

    公开(公告)号：US20220251681A1

    公开(公告)日：2022-08-11

    申请号：US17625753

    申请日：2020-07-24

    申请人： BASF SE

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

    IPC分类号： C22B26/12 ,  C22B23/00 ,  C22B1/00 ,  C22B3/12 ,  C22B7/00

    摘要： 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.