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    NEW PROCESS FOR PRODUCING HIGHLY CARBONACEOUS MATERIALS AND THE HIGHLY CARBONACEOUS MATERIAL OBTAINED
    1.
    发明申请
    NEW PROCESS FOR PRODUCING HIGHLY CARBONACEOUS MATERIALS AND THE HIGHLY CARBONACEOUS MATERIAL OBTAINED 审中-公开

    公开(公告)号：US20190270678A1

    公开(公告)日：2019-09-05

    申请号：US16344976

    申请日：2017-10-26

    Applicant: Arkema France

    Inventor： Alexander KORZHENKO ,  Célia MERCADER

    IPC: C04B35/83 ,  C04B35/628 ,  D01F9/17 ,  H01M4/1393 ,  H01M4/587

    Abstract: A process for the production of highly carbonaceous material, including combining a structured precursor including fibres and an unstructured precursor, in the form of a fluid, wherein the fluid has a viscosity of less than 45,000 mPa·s−1 at the temperature at which the combination step occurs, and including at least a cyclic organic or aromatic compound in the molten state, or in solution at a concentration by weight of less than or equal to 65%, in order to obtain a combined precursor corresponding to the structured precursor covered by the unstructured precursor, wherein the process further includes step of thermal and dimensional stabilization of the combined precursor in order to obtain fibres covered with a cyclic organic or aromatic compound deposit, and a step of carbonization of the fibres covered with a cyclic organic or aromatic compound deposit in order to obtain a highly carbonaceous material.

    METHOD FOR THE PURIFICATION OF RAW CARBON NANOTUBES
    3.
    发明申请
    METHOD FOR THE PURIFICATION OF RAW CARBON NANOTUBES 有权

    公开(公告)号：US20210107791A1

    公开(公告)日：2021-04-15

    申请号：US16498537

    申请日：2018-03-29

    Applicant: HYDRO-QUÉBEC ,  Arkema France

    Inventor： Ali DARWICHE ,  Martin DONTIGNY ,  Naoyuki KONDO ,  Abdelbast GUERFI ,  Karim ZAGHIB ,  Julien BEAUSOLEIL ,  Alexander KORZHENKO

    IPC: C01B32/17 ,  H01M4/587 ,  H01M10/0525

    Abstract: The present invention proposes a process for purifying raw carbon nanotubes to obtain an content in metallic impurities comprised between 5 ppm and 200 ppm. The process includes an increase in the bulk density of the raw carbon nanotubes via compacting to produce compacted carbon nanotubes. The process further includes sintering the compacted carbon nanotubes by undergoing thermal treatment under gaseous atmosphere in order to remove at least a portion of the metallic impurities contained in the raw carbon nanotubes, and consequently producing purified carbon nanotubes. These purified carbon nanotubes are directly usable as electronic conductors serving as basis additive to an electrode material without requiring any subsequent purification step. The electrode material can then be used to manufacture an electrode destined to a lithium-ion battery.

    ACTIVE ELECTRODE MATERIAL FOR A LI-S BATTERY
    4.
    发明申请
    ACTIVE ELECTRODE MATERIAL FOR A LI-S BATTERY 审中-公开

    公开(公告)号：US20170352873A1

    公开(公告)日：2017-12-07

    申请号：US15538030

    申请日：2015-12-21

    Applicant: Arkema France

    Inventor： Alexander KORZHENKO ,  Christophe VINCENDEAU

    IPC: H01M4/136 ,  H01M4/58 ,  H01M4/36 ,  H01M4/60 ,  H01M4/1397 ,  H01M10/052 ,  H01M4/02 ,  H01M4/62

    Abstract: The present invention relates to an active material suitable for the production of an electrode, in particular an electrode for a Li—S battery. The active material according to the invention comprises carbon nanofillers homogeneously dispersed in the substance of a sulphur material, the active material being obtainable according to a method involving melting in the presence of intense mechanical energy. The quantity of carbon nanofillers in the active material represents 1 to 25% by weight with respect to the total weight of the active material. The active material according to the invention allows an improvement in the electronic conductivity of the formulation of the electrode. Another aspect of the invention is the use of the active material in an electrode, in particular in a Li—S battery cathode.

    PROCESS FOR PRODUCING CARBON FIBRES FROM BIOSOURCED PRECURSORS AND THE CARBON FIBRES OBTAINED
    5.
    发明申请
    PROCESS FOR PRODUCING CARBON FIBRES FROM BIOSOURCED PRECURSORS AND THE CARBON FIBRES OBTAINED 审中-公开

    公开(公告)号：US20190271101A1

    公开(公告)日：2019-09-05

    申请号：US16344956

    申请日：2017-10-26

    Applicant: Arkema France

    Inventor： Alexander KORZHENKO ,  Tatiana KOLOMIETS

    IPC: D01F9/17 ,  C01B32/05 ,  C08K7/06 ,  C08K3/04 ,  C08K9/06

    Abstract: A process for producing a highly carbonaceous fibre or set of fibres including combining a structured precursor comprising a hydrocellulose fibre or a set of fibres, and an unstructured precursor, including lignin or a lignin derivative in the form of a solution having a viscosity less than 15,000 mPa·s−1 at the temperature at which the combination step takes place, in order to obtain a hydrocellulose fibre or set of fibres coated with the lignin or lignin derivative, wherein the process further includes a step of thermal and dimensional stabilization of the hydrocellulose fibre or set of fibres covered with the lignin in order to obtain a hydrocellulose fibre or set of fibres covered with a deposit of lignin or lignin derivative, and a carbonization step of the hydrocellulose fibre or set of fibres coated with a lignin deposit in order to obtain a highly carbonaceous fibre or set of fibres.

    MASTERBATCH FOR MANUFACTURING A DRILLING FLUID
    6.
    发明申请
    MASTERBATCH FOR MANUFACTURING A DRILLING FLUID 审中-公开
    用于制造钻井液的主板

    公开(公告)号：US20160215197A1

    公开(公告)日：2016-07-28

    申请号：US15087280

    申请日：2016-03-31

    Applicant: ARKEMA FRANCE

    Inventor： Alexander KORZHENKO ,  Mickael HAVEL ,  Catherine BLUTEAU

    IPC: C09K8/32 ,  C09K8/03

    CPC classification number: C09K8/32 ,  B82Y30/00 ,  C08J3/22 ,  C08J5/005 ,  C08K3/04 ,  C08K7/24 ,  C09K8/032 ,  C09K8/34 ,  C09K2208/10

    Abstract: An oil-based masterbatch in the form of granules containing carbon nanotubes. Also, a method for preparing an oil-based masterbatch in the form of granules containing carbon nanotubes. Also, the use of an oil-based masterbatch in the form of granules containing carbon nanotubes for manufacturing an aqueous or organic viscoelastic fluid, intended for drilling in underground formations.

    Abstract translation: 含有碳纳米管的颗粒形式的油基母料。 另外，制备含有碳纳米管的颗粒形式的油性母料的方法。 另外，使用含有碳纳米管的颗粒形式的油性母料用于制造用于在地层中钻孔的水性或有机粘弹性流体。

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