PORÖSES FOLIENMATERIAL, UMFASSEND WENIGSTENS EINE KOHLENSTOFFHALTIGE HALBMETALLOXIDPHASE, UND SEINE VERWENDUNG ALS SEPARATORMATERIAL FÜR ELEKTROCHEMISCHE ZELLEN
    9.
    发明公开
    PORÖSES FOLIENMATERIAL, UMFASSEND WENIGSTENS EINE KOHLENSTOFFHALTIGE HALBMETALLOXIDPHASE, UND SEINE VERWENDUNG ALS SEPARATORMATERIAL FÜR ELEKTROCHEMISCHE ZELLEN 审中-公开
    多孔膜材料,包括至少一个含有碳HALBMETALLOXIDPHASE,它的使用作为分隔电化学电池

    公开(公告)号:EP2449614A1

    公开(公告)日:2012-05-09

    申请号:EP10726523.3

    申请日:2010-06-30

    Applicant: BASF SE

    CPC classification number: H01M2/166 H01M2/1646 H01M10/0525 Y10T428/249979

    Abstract: The present invention relates to a novel porous film material comprising at least one carbonaceous semimetal oxide phase, and to a method for the production thereof. The invention further relates to the use of said porous film materials as a separator layer or for producing such separator layers in electrochemical cells, in particular in lithium ion cells, and especially in lithium ion secondary cells. The porous film material according to the invention comprises: a) at least one carbonaceous (semi)metal oxide phase A of silicon, aluminum, titanium, or zircon, comprising hydrocarbon groups covalently boded to the (semi)metal; b) optionally one or more organic polymer phases B, wherein the inorganic (semi)metal oxide phase A forms substantially continuous phase domains in which the pore phase present in the film material and the optionally present organic polymer phase(s) B are embedded, wherein the average distance between two phase boundaries of adjacent domains of identical phases is a maximum of 50 nm, preferably a maximum of 10 nm, in particular preferably a maximum of 5 nm, and especially a maximum of 2 nm.

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