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    DUAL-LAYER SEPARATOR FOR BATTERIES
    5.
    发明申请
    DUAL-LAYER SEPARATOR FOR BATTERIES 有权

    公开(公告)号：US20220336925A1

    公开(公告)日：2022-10-20

    申请号：US17232060

    申请日：2021-04-15

    申请人： Hollingsworth & Vose Company

    发明人： Zhiping Jiang

    IPC分类号： H01M50/449 ,  H01M10/06 ,  H01M50/44 ,  H01M50/437 ,  H01M50/491 ,  H01M50/446 ,  H01M50/42 ,  H01M50/403

    摘要： Battery separators, and lead-acid batteries comprising battery separators, are generally provided. In some embodiments, the battery separators described herein have one or more features that enhance their suitability for various applications (e.g., lead-acid battery applications). In one embodiment, a battery separator described herein comprises at least two phases. In some cases, each phase may have a one or more features that result in a battery separator having enhanced physical properties. For example, the dual-phase battery separator may exhibit reduced electrical and ionic resistance, enhanced acid filling capacity, reduced acid stratification, and enhanced thermal and oxidative stability compared to conventional battery separators.

    BATTERY COMPONENTS COMPRISING FIBERS
    7.
    发明申请
    BATTERY COMPONENTS COMPRISING FIBERS 有权

    公开(公告)号：US20220247037A1

    公开(公告)日：2022-08-04

    申请号：US17674254

    申请日：2022-02-17

    申请人： Hollingsworth & Vose Company

    发明人： John A. Wertz ,  Nicolas Clement ,  Sachin Kumar ,  Akshay Ashirgade

    IPC分类号： H01M50/446 ,  H01M10/06 ,  H01M4/14 ,  H01M4/20 ,  H01M50/44 ,  H01M50/411 ,  H01M50/431

    摘要： Battery components are generally provided. In some embodiments, the battery components can be used as pasting paper and/or capacitance layers for batteries, such as lead acid batteries. The battery components described herein may comprise a plurality of fibers. The battery component may include, in some embodiments, a plurality of fibers and, optionally, one or more additives such as conductive carbon and/or activated carbon. In certain embodiments, the plurality of fibers include relatively coarse glass fibers (e.g., having an average diameter of greater than or equal to 2 microns), relatively fine glass fibers (e.g., having an average diameter of less than 2 microns), and/or fibrillated fibers. In some instances, such fibers may be present in amounts such that the battery component has a particular surface area, mean pore size, and/or dry tensile strength.

    ELECTRET-CONTAINING FILTER MEDIA
    8.
    发明申请
    ELECTRET-CONTAINING FILTER MEDIA 有权

    公开(公告)号：US20220105453A1

    公开(公告)日：2022-04-07

    申请号：US17404349

    申请日：2021-08-17

    申请人： Hollingsworth & Vose Company

    发明人： Sudheer Jinka ,  Bruce Smith ,  Mark A. Gallimore

    IPC分类号： B01D39/16 ,  B01D39/08

    摘要： Filter media, such as electret-containing filtration media for filtering gas streams (e.g., air), are described herein. In some embodiments, the filter media may be designed to have desirable properties such as stable filtration efficiency over the lifetime of the filter media, increased normalized gamma, relatively low pressure drop (i.e. resistance), and/or relatively low basis weight. In certain embodiments, the filter media may be a composite of two or more types of fiber layers where each layer may be designed to enhance its function without substantially negatively impacting the performance of another layer of the media. For example, one layer of the media may be designed to have a relatively low basis weight and/or a relatively high air permeability, and another layer of the media may be designed to have stable filtration efficiency and/or a relatively high efficiency throughout the filter media's lifetime. The filter media described herein may be particularly well-suited for applications that involve filtering gas streams (e.g., face masks, cabin air filtration, vacuum filtration, room filtration, furnace filtration, respirator equipment, residential or industrial HVAC filtration, high-efficiency particulate arrestance (HEPA) filters, ultra-low particular air (ULPA) filters, medical equipment), though the media may also be used in other applications.

    FILTER MEDIA INCLUDING FLAME RETARDANT FIBERS
    10.
    发明申请
    FILTER MEDIA INCLUDING FLAME RETARDANT FIBERS 有权

    公开(公告)号：US20210236970A1

    公开(公告)日：2021-08-05

    申请号：US17236084

    申请日：2021-04-21

    申请人： Hollingsworth & Vose Company

    发明人： Xiaodan Zhang ,  Douglas M. Guimond ,  Carrie Liu ,  Nagendra Anantharamaiah ,  Sudhakar Jaganathan ,  Gerald Gadbois ,  Maxim Silin ,  Mark A. Gallimore

    IPC分类号： B01D39/16 ,  B01D39/18 ,  B01D39/20 ,  B01D39/14

    摘要： Filter media including a filtration layer comprising fibers (e.g., synthetic fibers) comprising a flame retardant and related components, systems, and methods associated herewith are provided. In some embodiments, a filtration layer may include a nonwoven web (e.g., wet-laid nonwoven web) comprising fibers including a certain flame retardant that has a relatively low concentration of or is substantially free of certain undesirable and/or toxic components (e.g., halogens). In certain embodiments, the nonwoven web may also comprise a blend of fibers. For instance, in some embodiments, the nonwoven web may also comprise a blend of coarse and fine diameter synthetic fibers that impart beneficial performance properties to the filtration layer. In some embodiments, the filtration layer may be designed to have a desirable flame retardancy (e.g., F1 rating, K1 rating) and performance properties without compromising certain mechanical properties (e.g., pleatability of the media) and/or environmental attributes (e.g., relatively low toxicity). Filter media described herein may be particularly well-suited for applications that involve filtering air, though the media may also be used in other applications.