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    5.
    发明专利
    未知

    公开(公告)号：FR2373885A1

    公开(公告)日：1978-07-07

    申请号：FR7637503

    申请日：1976-12-13

    Applicant: COMP GENERALE ELECTRICITE

    Inventor： DICK RICHARD ,  FEUILLADE GEORGES ,  GADESSAUD ROBERT ,  NICOLAS LOUIS

    IPC: B01D67/00 ,  B01D69/10 ,  B01D71/40 ,  B01D71/48 ,  C08J5/18 ,  C08J9/28 ,  H01M2/16 ,  H01M2/14

    Abstract: The invention relates to a semi-permeable membrane for lead acid batteries. The membrane has a microporous structure comprising a first polymer and a second polymer closely mixed together, the first polymer being poly (2-hydroxyethylmethacrylate), known as reticulated poly HEMA, characterized by the fact that the second polymer comprises one polymer or a mixture of several different polymers chosen from among polyoxyethylene glycol, polyvinylpyrrolidone, polyacrylic acid, polymethacrylic acid, copolymers of acrylic and methacrylic acid, polyacrylates and polymethacrylates of alkyl, and the copolymers of the acrylates and methacrylates of alkyls.

    6.
    发明专利
    未知

    公开(公告)号：DK135919B

    公开(公告)日：1977-07-11

    申请号：DK588973

    申请日：1973-10-31

    Applicant: COMP GENERALE ELECTRICITE

    Inventor： GADESSAUD ROBERT ,  AUDRY CLAUDETTE

    IPC: H01M4/06 ,  H01M4/02 ,  H01M4/04 ,  H01M4/12 ,  H01M4/24 ,  H01M4/26 ,  H01M4/52 ,  H01M4/62 ,  H01M4/66 ,  H01M4/74

    Abstract: A process for the preparation of electrodes for an electrochemical generator consisting in preparing an aqueous solution of partially reticulated polyvinyl alcohol (PVA) and in adding zinc acetate thereto, in pouring the solution into a mold in which at least one collecting grid has been previously arranged, in cooling the solution and removing from the mold the resulting cake which is immersed in potassium, in washing, drying and compressing this cake which is then coated with said aqueous PVA solution.

    7.
    发明专利
    未知

    公开(公告)号：DE2513431A1

    公开(公告)日：1975-10-02

    申请号：DE2513431

    申请日：1975-03-26

    Applicant: COMP GENERALE ELECTRICITE

    Inventor： GADESSAUD ROBERT ,  AUDRY CLAUDETTE

    IPC: H01M4/62 ,  H01M4/02 ,  H01M4/04 ,  H01M4/06 ,  H01M4/12 ,  H01M4/42

    Abstract: In this invention, according to a first embodiment, the collector part of the electrode is formed by a full plate on which are deposited longitudinal strips of polytetrafluorethylene before the depositing of the electrochemically active part. In a second embodiment, the collector part is formed by a grid which is coated, before the depositing of the electrochemically active part, with a zinc oxide paste and polytetrafluorethylene In this way, one or more spaces are provided between the collector part and the electrochemically active part, the result thus being that the gases given off by the reactional process may escape easily by following the space(s), thus avoiding any deformation of the electrode.

    9.
    发明专利
    未知

    公开(公告)号：IT976055B

    公开(公告)日：1974-08-20

    申请号：IT7093672

    申请日：1972-12-15

    Applicant: COMP GENERALE ELECTRICITE

    Inventor： GADESSAUD ROBERT

    IPC: H01M2/16 ,  H01M

    Abstract: A battery containing an alkaline electrolyte, having within a container, said electrolyte and two electrodes separated by a separator; said separator being made of a partially reticulated polyvinyl acetal produced by the action of at least one aldehyde on polyvinyl alcohol; preferably an aromatic aldehyde, which may also have at least one hydroxyl radical, being used together with formaldehyde.

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