Solid electrolyte composition
    1.
    发明授权

    公开(公告)号:US12125977B2

    公开(公告)日:2024-10-22

    申请号:US17291624

    申请日:2019-11-08

    IPC分类号: H01M10/0565 H01M10/0525

    摘要: 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.

    Multi-layer structured composite electrolyte and secondary battery using same

    公开(公告)号:US12125976B2

    公开(公告)日:2024-10-22

    申请号:US16586748

    申请日:2019-09-27

    申请人: Jae Kwang Kim

    发明人: Jae Kwang Kim

    摘要: A multi-layer structured composite electrolyte for a secondary battery and a secondary battery using the same are provided. The multi-layer structured composite electrolyte is made by laminating two or more layers of a composite electrolyte including a small amount of a liquid electrolyte in a mixture of a polymer and a ceramic material. The multi-layer structured composite electrolyte has the same stability as a solid electrolyte and has the same or better electrochemical properties as or than the liquid electrolyte. Since the multi-layer structured composite electrolyte of the present invention can be folded arbitrarily, the multi-layer structured composite electrolyte may be used in a wearable device.

    ALL-SOLID-STATE BATTERY
    4.
    发明公开

    公开(公告)号:US20240347769A1

    公开(公告)日:2024-10-17

    申请号:US18682316

    申请日:2022-08-05

    申请人: TDK CORPORATION

    发明人: Shinya WATANABE

    摘要: An all-solid-state battery includes: a laminate in which a positive electrode active material layer, a solid electrolyte layer, and a negative electrode active material layer are laminated in this order; a positive electrode current collector and a negative electrode current collector which sandwich the laminate in a laminating direction; an insulating sheet which surrounds the laminate between the positive electrode current collector and the negative electrode current collector; and a first adhesive sheet which bonds the insulating sheet and the positive electrode current collector or the insulating sheet and the negative electrode current collector, wherein a first through-hole is formed in the first adhesive sheet and the laminate is accommodated in the first through-hole when viewed from the laminating direction of the laminate.

    NON-GAS-EVOLVING IN-SITU CURED QUASI SOLID-STATE BATTERIES

    公开(公告)号:US20240304860A1

    公开(公告)日:2024-09-12

    申请号:US18595466

    申请日:2024-03-05

    IPC分类号: H01M10/0565 H01M4/66

    摘要: A quasi-solid-state battery formed from non-gas evolving in-situ curing of a quasi-solid-state electrolyte that includes a high swelling polymer made from a monomer with good compatibility with liquid electrolytes, and has a good reactivity for facile non-gas evolving in-situ polymerization. The monomer can be based on acrylate polymerization chemistry or an allyl group polymerization chemistry. Non-gas evolving initiators are used for non-gas evolving in-situ polymerization of acrylate or allyl monomer-based QSE. The resulting QSE additionally has high ionic conductivity, allowing for a high battery output, and a wide electrochemical window (stable for lithium metal anode and high-voltage cathodes). The resulting quasi solid electrolyte battery is not only easy to fabricate using conventional battery manufacturing practices, the non-gas evolving in-situ polymerization causes the QSE to be uniformly distributed within the battery, ensuring high-quality, safe battery performance and longevity.