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    PROCESS FOR MAKING AN ELECTRODE ACTIVE MATERIAL
    11.
    发明申请
    PROCESS FOR MAKING AN ELECTRODE ACTIVE MATERIAL 有权

    公开(公告)号：US20220216456A1

    公开(公告)日：2022-07-07

    申请号：US17595337

    申请日：2021-01-12

    Applicant: BASF SE

    Inventor： Heino SOMMER ,  Carsten SUELING

    IPC: H01M4/04 ,  H01M4/525 ,  H01M4/62 ,  C01G53/00

    Abstract: Process for making an electrode active material, said process comprising the steps of: (a) mixing a composite oxide, (oxy)hydroxide, hydroxide or carbonate of nickel and at least one of cobalt and manganese and, optionally, at least one of Mg, Al and Y or a transition metal selected from Ti, Zr, Nb, Ta, Fe, Mo, and W, with at least one source of lithium selected from lithium carbonate, lithium oxide and lithium hydroxide and, optionally, with at least one dopant selected from oxides, hydroxides and oxyhydroxides of Mg, Al, Y, Ti, Zr, Nb, Ta, Fe, Mo, and W, and from fluorides, (b) optionally, transferring said mixture into saggars, crucibles or open cups, (c) calcining said mixture in a pusher kiln or roller hearth kiln or rotary kiln at a temperature in the range of from 700 to 1000° C., (d) cooling down the resultant electrode active material, (e) applying a robot to take at least two samples of 10 mg to 10 g of every saggar, crucible or open cup to be analyzed, or per defined period of time, respectively, (f) transferring said samples to another robot or to another part of the same robot, where the robot makes an electrode material mix from samples of the same saggar, crucible or open cup, and (g) transferring the electrode material mix to a test unit to perform electrochemical tests, wherein the robot performs steps (f) to (g) with several samples in parallel.

    PROCESS FOR MAKING AN ELECTRODE ACTIVE MATERIAL, AND ELECTRODE ACTIVE MATERIAL
    17.
    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

    Applicant: BASF SE

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

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

    Abstract: 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 MAKING A PARTIALLY COATED ELECTRODE ACTIVE MATERIAL, AND ELECTRODE ACTIVE MATERIAL
    18.
    发明申请
    PROCESS FOR MAKING A PARTIALLY COATED ELECTRODE ACTIVE MATERIAL, AND ELECTRODE ACTIVE MATERIAL 有权

    公开(公告)号：US20210083284A1

    公开(公告)日：2021-03-18

    申请号：US16963714

    申请日：2019-01-31

    Applicant: BASF SE

    Inventor： Jacob HAAG ,  Maraike AHLF ,  Heino SOMMER

    IPC: H01M4/525 ,  H01M4/505 ,  H01M4/131 ,  H01M4/134 ,  H01M4/1391 ,  H01M4/1395 ,  H01M4/36 ,  H01M10/0525 ,  C01F7/02

    Abstract: A process for making a partially coated electrode active material may involve: (a) providing an electrode active material of the formula Li1+xTM1−xO2, wherein TM is a combination of Ni, Co and, optionally, Mn, and, optionally, at least one metal selected from Al, Ti, Mo, W, 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 the electrode active material has a residual moisture content in the range of from 50 to 1,000 ppm; (b) treating the electrode active material with a metal alkoxide or metal halide or metal amide or alkyl metal compound; (c) treating the material obtained in (b) with moisture; and (d) repeating the sequence of (b) and (c) twice to 4 times, wherein, in the last sequence of (b) and (c), moisture is at least partially substituted by ozone.

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