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    METHOD FOR MANUFACTURING POSITIVE ELECTRODE MIXTURE FOR FLAT LITHIUM PRIMARY BATTERY AND FLAT LITHIUM PRIMARY BATTERY
    1.
    发明公开
    METHOD FOR MANUFACTURING POSITIVE ELECTRODE MIXTURE FOR FLAT LITHIUM PRIMARY BATTERY AND FLAT LITHIUM PRIMARY BATTERY 审中-公开

    公开(公告)号：US20240145716A1

    公开(公告)日：2024-05-02

    申请号：US18548917

    申请日：2022-02-10

    申请人： Panasonic Intellectual Property Management Co., Ltd.

    发明人： TAKAFUMI KATAYAMA ,  TOUTA MIZUTA

    IPC分类号： H01M4/62 ,  H01M4/50 ,  H01M6/14 ,  H01M4/02

    CPC分类号： H01M4/62 ,  H01M4/50 ,  H01M6/14 ,  H01M2004/021 ,  H01M2004/028

    摘要： Disclosed is a flat lithium primary battery including a case, a positive electrode, a negative electrode, a separator, and a nonaqueous electrolyte, in which the positive electrode, the negative electrode, the separator, and the nonaqueous electrolyte are disposed in the case. The positive electrode includes: a positive electrode active material; and a fluorocarbon resin with swellability in the nonaqueous electrolyte. In the positive electrode, the fluorocarbon resin is present in particulate form. When, on the flat lithium primary battery having been put in an environment with a temperature of 25° C., a high temperature storage test to store the flat lithium primary battery in an environment with a temperature of 125° C. for 100 hours is conducted, the ratio d2/d1 of a particle diameter d2 of the fluorocarbon resin after the high temperature storage test to a particle diameter d1 of the fluorocarbon resin before the high temperature storage test is 1.5 or higher and 3.1 or lower.

    Immiscible liquid separated battery system
    6.
    发明授权
    Immiscible liquid separated battery system 有权

    公开(公告)号：US11251457B2

    公开(公告)日：2022-02-15

    申请号：US16578124

    申请日：2019-09-20

    申请人： PHILLIPS 66 COMPANY

    发明人： James Anthony Suttil ,  Hongjin Tan ,  Neal McDaniel ,  Sharmila Samaroo ,  Jeffrey H. Drese

    IPC分类号： H01M8/18 ,  H01M6/14 ,  H01M8/20 ,  H02J7/00 ,  H01M8/08

    摘要： A redox flow battery is described that does not include an ion exchange resin such as a proton exchange membrane but rather uses a generally stationary separator liquid that separates the anolyte from the catholyte at immiscible liquid-liquid interfaces. Solvents and electrochemically active components of the anolyte and catholyte would not cross the liquid-liquid interfaces between the separator liquid and the anolyte and catholyte, but certain ions in each of the anolyte and catholyte would cross the interface during charging and discharging of the redox flow battery. The separator liquid comprises a relatively small total volume of liquid in such a flow battery arrangement as compared to the anolyte and catholyte. Suitable chemical options are described along with system options for utilizing immiscible phases.

    Rolled-type battery
    8.
    发明授权
    Rolled-type battery 有权

    公开(公告)号：US11183740B2

    公开(公告)日：2021-11-23

    申请号：US16527842

    申请日：2019-07-31

    申请人： PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

    发明人： Tomoki Tsuji ,  Akira Kakinuma ,  Tetsuya Hayashi ,  Keisuke Yoneda

    IPC分类号： H01M10/0525 ,  H01M50/538 ,  H01M10/0587 ,  H01M4/04 ,  H01M10/04 ,  H01M50/10 ,  H01M50/107 ,  H01M50/531 ,  H01M50/572 ,  H01M6/14 ,  H01M4/13

    摘要： A wound battery includes an electrode assembly in which a first electrode and a second electrode are wound together via a separator, the electrode assembly being accommodated in a battery case including a bottomed tube-shaped metallic can. The first electrode has a first uncoated region defined by an exposed portion of a first current collector sheet at an end of the first current collector sheet in the axial direction of winding. The first electrode includes a first current collector lead connected to the first uncoated region. The first uncoated region is disposed on the same side as the open end of the metallic can. The second electrode includes a second current collector lead connected thereto. The first and the second current collector leads extend toward the open end of the metallic can. At least a portion of the first uncoated region is covered with an insulating layer, and the insulating layer extends beyond an end face of the first uncoated region.

    Membranes, separators, batteries, and methods
    9.
    发明授权
    Membranes, separators, batteries, and methods 有权

    公开(公告)号：US11094995B2

    公开(公告)日：2021-08-17

    申请号：US15216861

    申请日：2016-07-22

    申请人： Celgard, LLC

    发明人： Lie Shi ,  C. Glen Wensley ,  Zhengming Zhang ,  Katharine Chemelewski ,  Junqing Ma ,  Ronnie E. Smith ,  Kwantai Cho ,  Weifeng Fang ,  Changqing Wang Adams ,  Ian McCallum ,  Jun Nada ,  Shante P. Williams ,  Jacob S. Mangum

    IPC分类号： H01M50/431 ,  H01M50/403 ,  H01M50/449 ,  H01M10/052 ,  H01M50/44 ,  H01M50/411 ,  B05D1/00 ,  C23C14/08 ,  C23C14/20 ,  C23C14/24 ,  H01G11/52 ,  H01M6/14 ,  H01M10/0525 ,  H01G11/84

    摘要： In accordance with at least selected embodiments, novel or improved porous membranes or substrates, separator membranes, separators, composites, electrochemical devices, batteries, methods of making such membranes or substrates, separators, and/or batteries, and/or methods of using such membranes or substrates, separators and/or batteries are disclosed. In accordance with at least certain embodiments, novel or improved microporous membranes, battery separator membranes, separators, energy storage devices, batteries including such separators, methods of making such membranes, separators, and/or batteries, and/or methods of using such membranes, separators and/or batteries are disclosed. In accordance with at least certain selected embodiments, a separator for a battery which has an oxidation protective and binder-free deposition layer which is stable up to 5.2 volts or more, for example, up to 7 volts, in a battery is disclosed. The deposition layer is preferably a thin, very thin or ultra-thin deposition on a polymeric microporous membrane applied via a binder-free and solvent-free deposition method. By employing such an ultra-thin deposition layer, the energy density of a battery may be increased. In accordance with at least particular embodiments, the battery separator membrane described herein is directed to a multi-layer or composite microporous membrane battery separator which may have excellent oxidation resistance and may be stable in a high voltage battery system up to 5.2 volts or more. In accordance with at least other certain selected embodiments, the present invention is directed to a separator for a battery which has a conductive deposition layer which is stable up to at least 5.2 volts or higher in a battery.

    BATTERY HAVING A LOW OUTPUT VOLTAGE
    10.
    发明申请
    BATTERY HAVING A LOW OUTPUT VOLTAGE 有权

    公开(公告)号：US20210111403A1

    公开(公告)日：2021-04-15

    申请号：US17122499

    申请日：2020-12-15

    申请人： Global Graphene Group, Inc.

    发明人： Yu-Sheng Su ,  Minjie Li ,  Hui He ,  Qing Fang ,  Aruna Zhamu ,  Bor Z. Jang

    IPC分类号： H01M4/52 ,  H01M4/38 ,  H01M4/58 ,  H01M6/14 ,  H01M10/36 ,  H01M4/62 ,  H01M10/052 ,  H01M4/50 ,  H01M10/054 ,  H01M4/46 ,  H01M4/48 ,  H01M6/04

    摘要： An electrochemical battery cell comprising an anode having a primary anode active material, a cathode, and an ion-conducting electrolyte, wherein the cell has an initial output voltage, Vi, measured at 10% depth of discharge (DoD), selected from a range from 0.3 volts to 0.8 volts, and a final output voltage Vf measured at a DoD no greater than 90%, wherein a voltage variation, (Vi−Vf)/Vi, is no greater than ±10% and the specific capacity between Vi and Vf is no less than 100 mAh/g or 200 mAh/cm3 based on the cathode active material weight or volume, and wherein the primary anode active material is selected from lithium (Li), sodium (Na), potassium (K), magnesium (Mg), aluminum (Al), zinc (Zn), titanium (Ti), manganese (Mn), iron (Fe), vanadium (V), cobalt (Co), nickel (Ni), a mixture thereof, an alloy thereof, or a combination thereof.