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    IMPROVED THERMOPLASTIC CARBON PRECURSOR MATERIAL FOR APPLICATION IN COATING, BINDING, AND IMPREGNATION PROCESSES FOR THE MANUFACTURING OF ELECTRODES FOR STEEL AND ALUMINIUM PRODUCTION AND BATTERIES
    9.
    发明公开
    IMPROVED THERMOPLASTIC CARBON PRECURSOR MATERIAL FOR APPLICATION IN COATING, BINDING, AND IMPREGNATION PROCESSES FOR THE MANUFACTURING OF ELECTRODES FOR STEEL AND ALUMINIUM PRODUCTION AND BATTERIES 审中-公开

    公开(公告)号：EP4215597A1

    公开(公告)日：2023-07-26

    申请号：EP22152942.3

    申请日：2022-01-24

    申请人： Rain Carbon bv ,  Rain Carbon Germany GmbH

    发明人： Spahr, Michael ,  Kuhnt, Christopher ,  Claes, Joris ,  Denoo, Bram

    IPC分类号： C10C3/00 ,  C10C3/06 ,  C04B35/52 ,  C25C3/12 ,  H01M4/133 ,  H05B7/085

    摘要： The present invention is directed to a carbon precursor material characterized by a flashpoint above 290°C and a softening point between 110 and 300°C Mettler and comprising petroleum-derived pitch product derived from a petroleum-based raw material having a concentration of less than 40% by weight of asphaltenes as measured by SARA analysis. Further, the present invention is directed to the use of such carbon precursor material in binding/coating/impregnation processes in the production of graphite electrodes for electric arc furnaces used in steel/ferro-alloy/silicon production or in carbon electrodes for aluminum production and/or manufacture of graphite particles for the manufacturing of battery electrodes. The present invention is further directed to a carbon or graphite electrode comprising said pitch binder in converted state, and in particular a battery electrode. The present invention provides also a process for producing a coating and/or binding and/or impregnation carbon precursor material comprising a petroleum-derived pitch product, the process comprising the steps of providing petroleum-based raw material having a concentration of less than 40% by weight of asphaltenes measured by SARA analysis, thermally treating said petroleum-based raw material above 300°C at atmospheric pressure, and subsequently distill the thermally treated material, thereby obtaining a distillation residue being said petroleum-derived pitch product.

    IMPROVED CARBONACEOUS COATING FOR BATTERY ELECTRODE MATERIALS
    10.
    发明公开
    IMPROVED CARBONACEOUS COATING FOR BATTERY ELECTRODE MATERIALS 审中-公开

    公开(公告)号：EP4194396A1

    公开(公告)日：2023-06-14

    申请号：EP21214111.3

    申请日：2021-12-13

    申请人： Rain Carbon bvba ,  Rain Carbon Germany GmbH

    发明人： Spahr, Michael ,  Kuhnt, Christopher ,  Claes, Joris ,  Denoo, Bram ,  Stiegert, Jens

    IPC分类号： C01B32/21 ,  C10C3/00 ,  H01M4/583

    摘要： The present invention is directed to use of a petroleum-derived pitch product as coating material for graphite particles for the manufacturing of battery electrodes, characterized in that said pitch product has a melt viscosity index log 10 (visc)*100/SPM between 1.2 and 3.0 at 220°C and between 1.0 and 2.5 at 240°C, wherein visc = melt viscosity (mPa.s) and SPM= softening point °C Mettler.
    Further, the present invention is directed to a battery electrode comprising a coating made of said pitch product, as well as directed to a battery comprising an electrode having a coating made of said pitch product.
    In addition, the present invention is directed to a process for obtaining a petroleum-derived pitch product as mentioned above, said process comprising a petroleum vacuum distillation process step for obtaining petroleum-derived distillation residue. Further, the invention is directed to a process for manufacturing a battery electrode comprising said process for producing a pitch product.