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    Separators, batteries, systems, vehicles, and related methods
    4.
    发明授权
    Separators, batteries, systems, vehicles, and related methods 有权

    公开(公告)号：US11557812B2

    公开(公告)日：2023-01-17

    申请号：US17195645

    申请日：2021-03-09

    Applicant: Celgard, LLC

    Inventor： Xiaomin Zhang ,  Gerald P. Rumierz ,  Karl F. Humiston ,  Charles E. Haire ,  Tyrone S. Fields ,  Michael A. Braswell ,  Ronald A. Proctor ,  Ronnie E. Smith

    IPC: H01M50/411 ,  B29C48/00 ,  B29C48/21 ,  B29C48/92 ,  B29C48/08 ,  B29C48/10 ,  B29C48/18 ,  B29C55/00 ,  H01M50/449 ,  H01M50/463 ,  B29C65/00 ,  B29C48/32 ,  B29C48/88 ,  H01M50/403 ,  B29C55/14 ,  B29C55/16 ,  B29D99/00 ,  B29K23/00 ,  B29L31/34 ,  B29L31/00 ,  H01M10/0525

    Abstract: Improved battery separators, base films or membranes, batteries, cells, devices, systems, vehicles, and/or methods of making and/or using such separators, films or membranes, batteries, cells, devices, systems, vehicles, and/or methods of enhancing battery or cell charge rates, charge capacity, and/or discharge rates, and/or methods of improving batteries, systems including such batteries, vehicles including such batteries and/or systems, and/or the like; biaxially oriented porous membranes, composites including biaxially oriented porous membranes, biaxially oriented microporous membranes, biaxially oriented macroporous membranes, battery separators with improved charge capacities and the related methods and methods of manufacture, methods of use, and the like; flat sheet membranes, liquid retention media; dry process separators; biaxially stretched separators; dry process biaxially stretched separators having a thickness range between about 5 μm and 50 μm, preferably between about 10 μm and 25 μm, having improved strength, high porosity, and unexpectedly and/or surprisingly high charge capacity, such as, for example, high 10 C rate charge capacity; separators or membranes with high charge capacity and high porosity, excellent charge rate and/or charge capacity performance in a rechargeable and/or secondary lithium battery, such as a lithium ion battery, for high power and/or high energy applications, cells, devices, systems, and/or vehicles, and/or the like; single or multiple ply or layer separators, monolayer separators, trilayer separators, composite separators, laminated separators, co-extruded separators, coated separators, 1 C or higher separators, at least 1 C separators, batteries, cells, systems, devices, vehicles, and/or the like; improved microporous battery separators for secondary lithium batteries, improved microporous battery separators with enhanced or high charge (C) rates, discharge (C) rates, and/or enhanced or high charge capacities in or for secondary lithium batteries, and/or related methods of manufacture, use, and/or the like, and/or combinations thereof are disclosed or provided.

    Low electrical resistance microporous battery separator membranes, separators, cells, batteries, and related methods
    7.
    发明授权
    Low electrical resistance microporous battery separator membranes, separators, cells, batteries, and related methods 有权

    公开(公告)号：US11075429B2

    公开(公告)日：2021-07-27

    申请号：US16934725

    申请日：2020-07-21

    Applicant: Celgard, LLC

    Inventor： Xiaomin Zhang ,  Lie Shi

    IPC: H01M50/411 ,  B32B27/08 ,  B32B27/32 ,  B32B3/26 ,  H01M50/403 ,  H01M50/449 ,  H01M10/0525

    Abstract: Improved microporous battery separator membranes, separators, cells, batteries including such membranes, separators, cells, and/or methods of making such membranes and/or separators, and/or methods of using such membranes and/or separators are provided. In accordance with at least certain embodiments, an improved battery separator for a secondary or rechargeable lithium battery may have low electrical resistance of less than 0.95 ohm-cm2, or less than 0.8 ohm-cm2. The inventive battery separator membrane may provide a means to achieve an improved level of battery performance in a rechargeable or secondary lithium battery based on a possibly synergistic combination of low electrical resistance, low Gurley, low tortuosity, and/or a unique trapezoid shaped pore. In accordance with at least certain multilayer embodiments (for example, a trilayer membrane made of two polypropylene layers with a polyethylene layer in between), the inventive microporous membrane or battery separator has excellent onset and rate of thermal shutdown performance.

    Low electrical resistance microporous battery separator membranes, separators, cells, batteries, and related methods
    8.
    发明授权
    Low electrical resistance microporous battery separator membranes, separators, cells, batteries, and related methods 有权

    公开(公告)号：US10720623B2

    公开(公告)日：2020-07-21

    申请号：US16378841

    申请日：2019-04-09

    Applicant: Celgard, LLC

    Inventor： Xiaomin Zhang ,  Lie Shi

    IPC: H01M2/16 ,  B32B3/26 ,  B32B27/08 ,  B32B27/32 ,  H01M2/14 ,  H01M10/0525

    Abstract: Microporous battery separators, batteries including such separators, and/or methods of making such separators, and/or methods of using such separators are provided. A battery separator for a secondary or rechargeable lithium battery may have low electrical resistance of less than 0.95 ohm-cm2, or less than 0.8 ohm-cm2. The battery separator may provide a means to achieve an improved level of battery performance in a rechargeable or secondary lithium battery based on a possibly synergistic combination of low electrical resistance, low Gurley, low tortuosity, and/or a unique trapezoid shaped pore. In accordance with at least certain multilayer embodiments the inventive microporous battery separator may have excellent onset and rate of thermal shutdown performance.

    THIN BATTERY SEPARATORS AND METHODS
    9.
    发明申请
    THIN BATTERY SEPARATORS AND METHODS 审中-公开

    公开(公告)号：US20190334214A1

    公开(公告)日：2019-10-31

    申请号：US16504808

    申请日：2019-07-08

    Applicant: Celgard, LLC

    Inventor： Paul M. Halmo ,  Xiaomin Zhang ,  Paul D. Vido ,  Zhengming Zhang ,  Lie Shi ,  Daniel R. Alexander ,  Jill V. Watson

    IPC: H01M10/42 ,  H01M2/16 ,  H01M10/0525 ,  H01M2/14

    Abstract: In accordance with at least selected aspects, objects or embodiments, optimized, novel or improved membranes, battery separators, batteries, and/or systems and/or related methods of manufacture, use and/or optimization are provided. In accordance with at least selected embodiments, the present invention is related to novel or improved battery separators that prevent dendrite growth, prevent internal shorts due to dendrite growth, or both, batteries incorporating such separators, systems incorporating such batteries, and/or related methods of manufacture, use and/or optimization thereof. In accordance with at least certain embodiments, the present invention is related to novel or improved ultra thin or super thin membranes or battery separators, and/or lithium primary batteries, cells or packs incorporating such separators, and/or systems incorporating such batteries, cells or packs. In accordance with at least particular certain embodiments, the present invention is related to shutdown membranes or battery separators, and/or lithium primary batteries, cells or packs incorporating such separators, and/or systems incorporating such batteries, cells or packs.

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