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    COMPOSITIONS, ELECTRODES AND LEAD-ACID BATTERIES HAVING IMPROVED LOW-TEMPERATURE PERFORMANCE
    5.
    发明申请
    COMPOSITIONS, ELECTRODES AND LEAD-ACID BATTERIES HAVING IMPROVED LOW-TEMPERATURE PERFORMANCE 有权

    公开(公告)号：US20220020998A1

    公开(公告)日：2022-01-20

    申请号：US17298122

    申请日：2019-11-26

    Applicant: Cabot Corporation

    Inventor： Paolina Atanassova ,  Aurelien L. DuPasquier ,  Tao Kong

    IPC: H01M4/62 ,  H01M10/06

    Abstract: A composition suitable for a negative plate of lead-acid battery includes (a) a lead-based active material; (b) at least one material selected from the group consisting of a lignosulfonate and barium sulfate; and (c1) carbon black particles having a Brunauer-Emmett-Teller (BET) surface area greater than or equal to 90 m2/g and less than or equal to 900 m2/g, and an oil adsorption number (OAN) greater than or equal to 150 mL/100 g and less than or equal to 300 mL/100 g, or (c2) carbon black particles having a BET surface area greater than or equal to 40 m2/g and less than or equal to 500 m2/g, and graphenes particles. The composition has a theoretical negative active mass (NAM) BET surface area greater than or equal to 0.75 m2/g and less than or equal to 2 m2/g. The compositions can be used in electrodes, e.g., those used in lead-acid batteries.

    ELECTRODE COMPOSITIONS COMPRISING CARBON ADDITIVES
    9.
    发明申请
    ELECTRODE COMPOSITIONS COMPRISING CARBON ADDITIVES 审中-公开

    公开(公告)号：US20170373312A1

    公开(公告)日：2017-12-28

    申请号：US15437707

    申请日：2017-02-21

    Applicant: Cabot Corporation

    Inventor： Paolina Atanassova ,  Aurelien L. DuPasquier ,  Miodrag Oljaca

    IPC: H01M4/57 ,  H01M4/04 ,  H01M4/62 ,  H01M10/06

    CPC classification number: H01M4/57 ,  H01M4/0404 ,  H01M4/625 ,  H01M4/627 ,  H01M10/06

    Abstract: Disclosed herein are electrode compositions comprising a homogeneous mixture comprising: a lead-containing material and a carbon additive comprising carbon black and activated carbon. A total amount of the carbon additive ranges from 0.1% to 2% by weight, relative to the total weight of the composition. The composition can have a ratio of carbon black to activated carbon ranging from 0.1:0.9 to 0.5:0.5. The activated carbon can have a d50 particle size distribution ranging from 4 μm to 100 μm, and a pore volume of at least 0.7 cm3/g. Also disclosed are electrodes formed from the electrode composition, cells (e.g., lead-acid battery) comprising the electrodes/electrode compositions, and methods of making thereof.

    High Surface Area Graphitized Carbon and Processes for Making Same
    10.
    发明申请
    High Surface Area Graphitized Carbon and Processes for Making Same 有权
    高表面积石墨化碳和制造相同的工艺

    公开(公告)号：US20150210550A1

    公开(公告)日：2015-07-30

    申请号：US14678295

    申请日：2015-04-03

    Applicant: Cabot Corporation

    Inventor： Yipeng Sun ,  Shen Jian-Ping ,  Gordon Rice ,  Paolina Atanassova ,  Geoffrey D. Moeser

    IPC: C01B31/04 ,  H01M4/90

    CPC classification number: C01B32/20 ,  B82Y30/00 ,  H01M4/9083 ,  H01M4/926 ,  H01M8/1004 ,  H01M8/1011 ,  Y02E60/523 ,  Y02P70/56

    Abstract: The invention is directed to high surface area graphitized carbon and to processes for making high surface area graphitized carbon. The process includes steps of graphitizing and increasing the surface area of (in either order) a starting carbon material to form high surface area graphitized carbon. The step of increasing the surface area optionally comprises an oxidizing step (e.g., through steam etching) or template removal from composite particles. The invention is also directed to catalyst particles and electrodes employing catalyst particles that are formed from the high surface area graphitized carbon.

    Abstract translation: 本发明涉及高表面积石墨化碳和制备高表面积石墨化碳的方法。 该方法包括石墨化和增加（以任一顺序）起始碳材料以形成高表面积石墨化碳的表面积的步骤。 增加表面积的步骤任选地包括氧化步骤（例如通过蒸汽蚀刻）或从复合颗粒中去除模板。 本发明还涉及使用由高表面积石墨化碳形成的催化剂颗粒的催化剂颗粒和电极。

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