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    Dense fluoropolymer film
    3.
    发明授权
    Dense fluoropolymer film 有权

    公开(公告)号：US11118044B2

    公开(公告)日：2021-09-14

    申请号：US14653413

    申请日：2013-12-17

    Applicant: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.

    Inventor： Julio A. Abusleme ,  Christine Hamon ,  Giorgio Canil ,  Marco Mirenda

    IPC: H01M2/16 ,  H01M10/0525 ,  H01M10/058 ,  C08J5/22 ,  C08L27/16 ,  C08F214/22 ,  C08L71/02 ,  H01M50/411 ,  H01M50/446

    Abstract: The present invention pertains to a process for the manufacture of a dense film. The process includes processing, in a molten phase, a solid composition [composition (C)] comprising;
    at least one vinylidene fluoride (VDF) fluoropolymer comprising one or more carboxylic acid functional end groups [polymer (F)],
    at least one poly(alkylene oxide) (PAO) of formula (I): HO—(CH2CHRAO)n—RB  (I) wherein RA is a hydrogen atom or a C1-C5 alkyl group, RB is a hydrogen atom or a —CH3 alkyl group and n is an integer comprised between 2000 and 40000, preferably between 4000 and 35000, more preferably between 11500 and 30000, and -optionally, at least one inorganic filler [filler (I)]; thereby providing a dense film having a thickness of from 5 μm to 30 μm.
    The present invention also pertains to the dense film provided by this process and to the use of the dense film as dense separator in electrochemical devices.

    Solid electrolyte composition
    5.
    发明授权
    Solid electrolyte composition 有权

    公开(公告)号：US12125977B2

    公开(公告)日：2024-10-22

    申请号：US17291624

    申请日：2019-11-08

    Applicant: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.

    Inventor： Elena Molena ,  Christine Hamon ,  Silvia Rita Petricci ,  Giulia Piana ,  Federico Bella ,  Claudio Gerbaldi

    IPC: H01M10/0565 ,  H01M10/0525

    CPC classification number: H01M10/0565 ,  H01M10/0525 ,  H01M2300/0082 ,  H01M2300/0085

    Abstract: The present invention relates to a solid electrolyte composition comprising:



    a) at least one (per)fuoropolyether comprising a (per)fluoropolyoxyalkylene chain [chain (Rpf)] having two chain ends, wherein at least one chain end has formula (I):

    —[CH(J)CH2O]na[CH2CH(J)O]na′—H  (I)

    wherein each J is independently H, aryl, straight or branched alkyl, and na and na′, equal to or different from each other, are zero or an integer from 1 to 50, with the proviso that na+na′ is from 1 to 50;
    b) a poly(alkylene oxide) comprising chains of formula (II):

    R1B—[OCHR1A(CH2)jCHR2A]n—OR2B  (II)

    wherein each of R1A and R2A is independently a hydrogen atom or a C1-C5 alkyl group, j is zero or an integer of 1 to 2, R1B and R2B is independently a hydrogen atom or a C1-C3 alkyl group, and n is an integer from 5 to 1000, and
    c) at least one lithium salt.

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