ELECTROCHEMICAL CELLS AND METHODS OF MANUFACTURING THE SAME

    公开(公告)号:US20240429429A1

    公开(公告)日:2024-12-26

    申请号:US18763907

    申请日:2024-07-03

    Abstract: Electrochemical cells and methods of making electrochemical cells are described herein. In some embodiments, an apparatus includes a multi-layer sheet for encasing an electrode material for an electrochemical cell. The multi-layer sheet including an outer layer, an intermediate layer that includes a conductive substrate, and an inner layer disposed on a portion of the conductive substrate. The intermediate layer is disposed between the outer layer and the inner layer. The inner layer defines an opening through which a conductive region of the intermediate layer is exposed such that the electrode material can be electrically connected to the conductive region. Thus, the intermediate layer can serve as a current collector for the electrochemical cell.

    HIGH ENERGY-DENSITY COMPOSITION-GRADIENT ELECTRODES AND METHODS OF MAKING THE SAME

    公开(公告)号:US20240088355A1

    公开(公告)日:2024-03-14

    申请号:US18233411

    申请日:2023-08-14

    Abstract: Embodiments described herein relate generally to devices, systems and methods of producing high energy density electrodes including a first electrode material disposed on a current collector and having a first porosity, and a second electrode material disposed on the first electrode material and having a second porosity less than the first porosity. In some embodiments, the second electrode material includes a mixture of an active material and a conductive material in a liquid electrolyte. In some embodiments, the first electrode materials can have a different composition than the second electrode material. In some embodiments, the first electrode material can include a high-capacity material such as tin, silicon antimony, aluminum, or titanium oxide. In some embodiments, a lithium-containing material can be disposed between the first electrode material and the second electrode material.

    APPARATUSES AND PROCESSES FOR FORMING A SEMI-SOLID ELECTRODE HAVING HIGH ACTIVE SOLIDS LOADING AND ELECTROCHEMICAL CELLS INCLUDING THE SAME

    公开(公告)号:US20230178707A1

    公开(公告)日:2023-06-08

    申请号:US17895229

    申请日:2022-08-25

    CPC classification number: H01M4/0433

    Abstract: Embodiments described herein relate generally to apparatuses and processes for forming semi-solid electrodes having high active solids loading by removing excess electrolyte. In some embodiments, the semi-solid electrode material can be formed by mixing an active material and, optionally, a conductive material in a liquid electrolyte to form a suspension. In some embodiments, the semi-solid electrode material can be disposed onto a current collector to form an intermediate electrode. In some embodiments, the semi-solid electrode material can have a first composition in which the ratio of electrolyte to active material is between about 10:1 and about 1:1. In some embodiments, a method for converting the semi-solid electrode material from the first composition into the second composition includes removing a portion of the electrolyte from the semi-solid electrode material. In some embodiments, the method includes mechanically compressing the intermediate electrode to remove the portion of electrolyte from the semi-solid electrode material.

    SHORT-CIRCUIT PROTECTION OF BATTERY CELLS USING FUSES

    公开(公告)号:US20210091366A1

    公开(公告)日:2021-03-25

    申请号:US17078814

    申请日:2020-10-23

    Abstract: Apparatus, systems, and methods described herein relate to safety devices for electrochemical cells comprising an electrode tab electrically coupled to an electrode, the electrode including an electrode material disposed on a current collector. In some embodiments, a fuse can be operably coupled to or formed in the electrode tab. In some embodiments, the fuse can be formed by removing a portion of the electrode tab. In some embodiments, the fuse can include a thin strip of electrically resistive material configured to electrically couple multiple electrodes. In some embodiments, the current collector can include a metal-coated deformable mesh material such that the current collector is self-fusing. In some embodiments, the fuse can be configured to deform, break, melt, or otherwise discontinue electrical communication between the electrode and other components of the electrochemical cell in response to a high current condition, a high voltage condition, or a high temperature condition.

    ELECTROCHEMICAL CELLS AND METHODS OF MANUFACTURING THE SAME
    27.
    发明申请
    ELECTROCHEMICAL CELLS AND METHODS OF MANUFACTURING THE SAME 有权
    电化学电池及其制造方法

    公开(公告)号:US20170077464A1

    公开(公告)日:2017-03-16

    申请号:US15188374

    申请日:2016-06-21

    Abstract: Electrochemical cells and methods of making electrochemical cells are described herein. In some embodiments, an apparatus includes a multi-layer sheet for encasing an electrode material for an electrochemical cell. The multi-layer sheet including an outer layer, an intermediate layer that includes a conductive substrate, and an inner layer disposed on a portion of the conductive substrate. The intermediate layer is disposed between the outer layer and the inner layer. The inner layer defines an opening through which a conductive region of the intermediate layer is exposed such that the electrode material can be electrically connected to the conductive region. Thus, the intermediate layer can serve as a current collector for the electrochemical cell.

    Abstract translation: 本文描述了电化学电池和制造电化学电池的方法。 在一些实施例中,一种装置包括用于封装用于电化学电池的电极材料的多层片材。 所述多层片材包括外层,包括导电性基材的中间层和设置在所述导电性基材的一部分上的内层。 中间层设置在外层和内层之间。 内层限定开口,中间层的导电区域通过该开口露出,使得电极材料可以电连接到导电区域。 因此,中间层可以用作电化学电池的集电器。

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