CERAMIC COATING ON BATTERY SEPARATORS
    1.
    发明申请

    公开(公告)号:US20190165348A1

    公开(公告)日:2019-05-30

    申请号:US16245750

    申请日:2019-01-11

    Abstract: The present invention relates generally to electrochemical energy storage devices such as Li-ion batteries, and more particularly to a method of providing uniform ceramic coatings with controlled thicknesses for separators in such storage devices. Some embodiments of the invention utilize a layer by layer coating of nano/micro-sized particles dispersed in a solvent, which can be aqueous or non-aqueous. Other embodiments of the invention utilize a dry process such as PVD for depositing a ceramic film on a porous polyolefin separator. According to certain aspects of the invention, advantages of this approach include the ability to achieve a denser more uniform film with better controlled thickness with less waste and higher yield than current ceramic coating technology. An advantage of a ceramic coated separator is increased safety of cells.

    CERAMIC COATING ON BATTERY SEPARATORS
    2.
    发明申请
    CERAMIC COATING ON BATTERY SEPARATORS 审中-公开
    电池分离器陶瓷涂层

    公开(公告)号:US20150325828A1

    公开(公告)日:2015-11-12

    申请号:US14652018

    申请日:2013-12-11

    Abstract: The present invention relates generally to electrochemical energy storage devices such as Li-ion batteries, and more particularly to a method of providing uniform ceramic coatings with controlled thicknesses for separators in such storage devices. Some embodiments of the invention utilize a layer by layer coating of nano/micro-sized particles dispersed in a solvent, which can be aqueous or non-aqueous. Other embodiments of the invention utilize a dry process such as PVD for depositing a ceramic film on a porous polyolefin separator. According to certain aspects of the invention, advantages of this approach include the ability to achieve a denser more uniform film with better controlled thickness with less waste and higher yield than current ceramic coating technology. An advantage of a ceramic coated separator is increased safety of cells.

    Abstract translation: 本发明一般涉及诸如锂离子电池的电化学能量存储装置,更具体地说,涉及一种为这种存储装置中的分离器提供具有受控厚度的均匀陶瓷涂层的方法。 本发明的一些实施方案利用分散在可以是水性或非水性的溶剂中的纳米/微尺寸颗粒的逐层涂布。 本发明的其它实施例利用诸如PVD之类的干法在多孔聚烯烃分离器上沉积陶瓷膜。 根据本发明的某些方面,该方法的优点包括获得具有更好控制厚度的更致密的更均匀的膜,同时具有比现有陶瓷涂层技术更少的浪费和更高产量的能力。 陶瓷涂层隔板的优点是增加了电池的安全性。

    SOLID STATE BATTERY FABRICATION
    5.
    发明申请

    公开(公告)号:US20200185780A1

    公开(公告)日:2020-06-11

    申请号:US16774383

    申请日:2020-01-28

    Abstract: Embodiments of the invention generally relate to solid state battery structures, such as Li-ion batteries, methods of fabrication and tools for fabricating the batteries. One or more electrodes and the separator may each be cast using a green tape approach wherein a mixture of active material, conductive additive, polymer binder and/or solid electrolyte are molded or extruded in a roll to roll or segmented sheet/disk process to make green tape, green disks or green sheets. A method of fabricating a solid state battery may include: preparing and/or providing a green sheet of positive electrode material; preparing and/or providing a green sheet of separator material; laminating together the green sheet of positive electrode material and the green sheet of separator material to form a laminated green stack; and sintering the laminated green stack to form a sintered stack comprising a positive electrode and a separator.

    CERAMIC COATING ON BATTERY SEPARATORS
    6.
    发明申请

    公开(公告)号:US20190148694A1

    公开(公告)日:2019-05-16

    申请号:US16245685

    申请日:2019-01-11

    Abstract: The present invention relates generally to electrochemical energy storage devices such as Li-ion batteries, and more particularly to a method of providing uniform ceramic coatings with controlled thicknesses for separators in such storage devices. Some embodiments of the invention utilize a layer by layer coating of nano/micro-sized particles dispersed in a solvent, which can be aqueous or non-aqueous. Other embodiments of the invention utilize a dry process such as PVD for depositing a ceramic film on a porous polyolefin separator. According to certain aspects of the invention, advantages of this approach include the ability to achieve a denser more uniform film with better controlled thickness with less waste and higher yield than current ceramic coating technology. An advantage of a ceramic coated separator is increased safety of cells.

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