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    PROCESS FOR MANUFACTURING A POROUS TRANSPORT LAYER
    2.
    发明申请
    PROCESS FOR MANUFACTURING A POROUS TRANSPORT LAYER 审中-公开

    公开(公告)号：WO2023061869A1

    公开(公告)日：2023-04-20

    申请号：PCT/EP2022/077923

    申请日：2022-10-07

    Applicant: BASF SE

    Inventor： MADKOUR, Sherif Aly Hassan Aly ,  MALKO, Daniel ,  SCHMIDT-HANSBERG, Benjamin

    IPC: B22F3/20 ,  B22F5/00 ,  B22F10/20 ,  B22F1/052 ,  B22F1/10 ,  B22F1/00 ,  B22F7/00 ,  H01M4/86 ,  H01M4/88 ,  B22F3/11 ,  H01M8/1018 ,  B22F3/18 ,  H01M8/0232 ,  H01M8/10 ,  C25B11/032 ,  B22F3/22 ,  C22C14/00 ,  C22C38/44

    Abstract: The invention relates to a process for manufacturing a multilayered porous transport layer, the process comprising (a) providing a first feedstock comprising first metal particles and a first polymer binder; and providing a second feedstock comprising second metal particles and a second polymer binder; the first and the second feedstock having a metal powder content of 40 to 70 % by volume; and the first feedstock having (i) metal particles with a smaller average particles size,(ii) a higher metal powder content, or (iii) both, metal particles with a smaller average particles size and a higher metal powder content compared to the second feedstock; (b) coextruding the first and the second feedstock to form a film-shaped green body comprising a first layer and a second layer, the second layer being materially connected to the first layer above the melting temperature and or glass transition temperature of the first polymer binder and the second polymer binder; (c) optionally smoothening the film-shaped green body by rolling or calendering; (d) debinding the film-shaped green body to form a brown body; (e) sintering the brown body under a non-oxidative atmosphere or vacuum and a temperature of from 700 to 1300 °C to form the porous transport layer;wherein the first feedstock and the second feedstock are free of any solvents.

    ELECTROLYSIS OF LI2SO4 AT LOW PH RANGES
    3.
    发明申请
    ELECTROLYSIS OF LI2SO4 AT LOW PH RANGES 审中-公开

    公开(公告)号：WO2023281033A1

    公开(公告)日：2023-01-12

    申请号：PCT/EP2022/069014

    申请日：2022-07-07

    Applicant: BASF SE

    Inventor： BORN, Nils-Olof Joachim ,  GARSUCH, Arnd ,  SCHIERLE-ARNDT, Kerstin ,  WILK, Wolfram ,  BRAEUNINGER, Sigmar ,  VOGELSANG, Regina ,  OPITZ, Bastian ,  MALKO, Daniel ,  SMITH, Vincent

    IPC: C25C1/02 ,  C22B26/12 ,  H01M10/54

    Abstract: Disclosed herein are processes comprising electrolyzing an aqueous solution comprising lithium, wherein the aqueous solution has a pH less than 0.5. Also disclosed are processes comprising electrolyzing a first aqueous solution comprising lithium to obtain a second aqueous solution comprising lithium, and an acidic aqueous solution having a pH less than 0.5, adjusting the pH of the second aqueous solution with the acidic aqueous solution to obtain a third aqueous solution comprising lithium having a pH less than 0.5, and electrolyzing the third aqueous solution comprising lithium. Additionally disclosed are, processes comprising stripping a liquid medium comprising lithium with an acidic aqueous solution to obtain an aqueous solution comprising lithium, and electrolyzing the aqueous solution comprising lithium. Further disclosed are processes for preparing a liquid medium comprising lithium.

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