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    PROCESS FOR MAKING A COATED ELECTRODE ACTIVE MATERIAL
    392.
    发明申请
    PROCESS FOR MAKING A COATED ELECTRODE ACTIVE MATERIAL 有权

    公开(公告)号：US20220320496A1

    公开(公告)日：2022-10-06

    申请号：US17595862

    申请日：2020-06-29

    Applicant: BASF SE

    Inventor： Zhenji HAN ,  Junji KASHIWAGI ,  Suhao WEI ,  Jumpei NAKAYAMA ,  Daisuke MORITA

    IPC: H01M4/36 ,  H01M4/505 ,  H01M4/525 ,  H01M4/04

    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+xTM1−xO2, wherein TM is Ni and, optionally, at least one of Co and Mn, and, optionally, at least one element selected from Al, Mg, Ba and B, transition metals other than Ni, Co, and Mn, and x is in the range of from zero to 0.2, wherein at least 50 mole-% of the transition metal of TM is Ni, (b) treating said electrode active material with an aqueous medium, (c) partially removing water by solid-liquid separation method, (d) treating the residue with a compound of Me, Me being selected from at least one of aluminum, boron, phosphorus, antimony, magnesium, vanadium, and tellurium, and (e) treating the residue thermally.

    Process for making an at least partially coated electrode active material
    394.
    发明授权
    Process for making an at least partially coated electrode active material 有权

    公开(公告)号：US11456448B2

    公开(公告)日：2022-09-27

    申请号：US16975952

    申请日：2019-03-12

    Applicant: BASF SE

    Inventor： Jose Jimenez ,  Robert Prunchak

    IPC: H01M4/04 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/505 ,  H01M4/525 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/02

    Abstract: A process for making an at least partially coated electrode active material may involve, with an electrode active material of 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 and Zr, and x is in the range of from 0 to 0.2, treating the electrode active material with at least one compound of W or Mo that bears at least one group or ion that is replaced or displaced when such compound reacts with the surface of the electrode active material particle, treating the surface-reacted material with an agent to decompose the compound of W or Mo, repeating the sequence 1 to 100 times, wherein the average thickness of the resulting coating is in the range of from 0.1 to 50 nm.

    PROCESS FOR PRODUCING MICROPARTICLES LADEN WITH A VOLATILE ORGANIC ACTIVE
    400.
    发明申请
    PROCESS FOR PRODUCING MICROPARTICLES LADEN WITH A VOLATILE ORGANIC ACTIVE 有权

    公开(公告)号：US20220288549A1

    公开(公告)日：2022-09-15

    申请号：US17626134

    申请日：2020-07-10

    Applicant: BASF SE

    Inventor： OSCHMANN Dieter Bernd ,  Dominik GARELLA ,  Miika FRANCK ,  Wolfgang KRAUSE ,  Thorsten MOHR

    IPC: B01J13/12 ,  B01J13/20

    Abstract: The present invention relates to a process for producing microparticles laden with at least one active, wherein the microparticles are formed from a thermoplastic organic, polymeric material and in the unladen state, in their interior, have at least one cavity connected via pores to the surface of the microparticles, wherein (a) a composition of unladen microparticles are impregnated with a liquid comprising the active, whereby laden microparticles are obtained, which contain in the interior cavity the liquid, and (b) subjecting the laden microparticles to thermal treatment by passing a stream of free flowing laden microparticles in a carrier gas through a heated zone at a temperature of at least 20 K, in particular at least 40 K, e.g. 20 to 250 K especially 40 to 200 K above the softening temperature of the thermoplastic organic polymeric material, where the average residence time of the laden microparticles in the heated zone is not more than 60 s, in particular not more than 30 s, especially not more than 20 s or not more than 10 s, e.g. in the range of 0.1 to 60 s, in particular in the range of 0.1 to 30 s, more particularly in the range of 0.5 to 20 s and especially in the range of 1 to 10 s. The present invention further relates to compositions of microparticles filled with at least one active, in particular with at least volatile organic active, which is obtainable by a process of the invention, and to the use thereof, especially in a product selected from perfumes, washing and cleaning compositions, cosmetic compositions, personal care compositions, hygiene articles, foods, food supplements, fragrance dispensers and fragrances. The present invention further relates to products comprising an inventive composition of microparticles filled with at least one active, in particular with at least one volatile organic active, and to the use thereof, especially for controlled release of actives of low molecular weight and specifically for controlled release of aroma chemicals.

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