Cell and electrochemical device
    1.
    再颁专利

    公开(公告)号:USRE49672E1

    公开(公告)日:2023-09-26

    申请号:US17132483

    申请日:2020-12-23

    发明人: Jin Chong

    摘要: The present disclosure provides a cell and an electrochemical device. The cell comprises: a first electrode plate comprising a first current collector and a first active material layer, a second electrode plate comprising a second current collector and a second active material layer; a first electrode tab, a second electrode tab, a separator. The first current collector has a first surface uncoated region; the second current collector has a second surface uncoated region; the first electrode tab is provided on the first surface uncoated region, the second electrode tab is provided on the second surface uncoated region. The first electrode tab and/or the second electrode tab are enlarged in length and width. When the cell is subjected to a mechanical shock, the first electrode tab and the second electrode tab are deformed to puncture the separator therebetween, so the first current collector and the second current collector are electrically connected.

    Software management of EV battery modules

    公开(公告)号:US11560062B2

    公开(公告)日:2023-01-24

    申请号:US16579904

    申请日:2019-09-24

    申请人: StoreDot Ltd.

    发明人: Daniel Aronov

    摘要: Single, internally adjustable modular battery systems are provided, for handling power delivery from and to various power systems such as electric vehicles, photovoltaic systems, solar systems, grid-scale battery energy storage systems, home energy storage systems and power walls. Batteries comprise a main fast-charging lithium ion battery (FC), configured to deliver power to the electric vehicle, a supercapacitor-emulating fast-charging lithium ion battery (SCeFC), configured to receive power and deliver power to the FC and/or to the EV and to operate at high rates within a limited operation range of state of charge (SoC), respective module management systems, and a control unit. Both the FC and the SCeFC have anodes based on the same anode active material and the control unit is configured to manage the FC and the SCeFC and manage power delivery to and from the power system(s), to optimize the operation of the FC.

    Self-retaining spacer and clip device

    公开(公告)号:US11199210B2

    公开(公告)日:2021-12-14

    申请号:US16741230

    申请日:2020-01-13

    IPC分类号: F16B5/06 H01M2/00 H01M50/20

    摘要: A spacer and clip device includes a body including a clip portion and a spacer portion separated by a channel edge defining a channel extending longitudinally through the body, the clip portion and the spacer portion connected by a joining portion. The body includes an attachment edge defining an attachment opening that extends laterally through the body, the spacer portion establishes a standoff height, and the body is compressible to adjust the standoff height.

    Battery connections and metallized film components in energy storage devices having internal fuses

    公开(公告)号:US11139510B2

    公开(公告)日:2021-10-05

    申请号:US16361216

    申请日:2019-03-22

    摘要: A lithium battery cell with an internal fuse component and including needed tabs which allow for conductance from the internal portion thereof externally to power a subject device is provided. Disclosed herein are tabs that exhibit sufficient safety levels in combination with the internal fuse characteristics noted above while simultaneously displaying pull strength to remain in place during utilization as well as complete coverage with the thin film metallized current collectors for such an electrical conductivity result. Such tabs are further provided with effective welds for the necessary contacts and at levels that exhibit surprising levels of amperage and temperature resistance to achieve the basic internal fuse result with the aforementioned sufficient conductance to an external device. With such a tab lead component and welded structure, a further improvement within the lithium battery art is provided the industry.

    Energy storage device having a current collector with inherent current limitations

    公开(公告)号:US10957956B2

    公开(公告)日:2021-03-23

    申请号:US15927072

    申请日:2018-03-20

    摘要: Improvements in the structural components and physical characteristics of lithium battery articles are provided. Standard lithium ion batteries, for example, are prone to certain phenomena related to short circuiting and have experienced high temperature occurrences and ultimate firing as a result. Structural concerns with battery components have been found to contribute to such problems. Improvements provided herein include the utilization of thin metallized current collectors (aluminum and/or copper, as examples), high shrinkage rate materials, materials that become nonconductive upon exposure to high temperatures, and combinations thereof. Such improvements accord the ability to withstand certain imperfections (dendrites, unexpected electrical surges, etc.) within the target lithium battery through provision of ostensibly an internal fuse within the subject lithium batteries themselves that prevents undesirable high temperature results from short circuits. Battery articles and methods of use thereof including such improvements are also encompassed within this disclosure.

    Electrochemical device
    7.
    发明授权

    公开(公告)号:US10957954B2

    公开(公告)日:2021-03-23

    申请号:US14702920

    申请日:2015-05-04

    发明人: Koji Minamitani

    摘要: The electrochemical device 40 includes a device main body 60 and an armoring body 50 for accommodating the device main body 60. The armoring body 50 is constituted by a laminated armoring material in which a heat-resistant resin layer 2 is adhered to a first surface of a metal foil layer 4 and a thermal fusion resin layer 3 is adhered to a second surface of the metal foil layer 4, and metal exposed sections 54 and 56 in which the metal foil layer 4 is exposed is formed at least on the heat-resistant resin layer 2 side which is an outer side of the laminated armoring material 50.

    Nonaqueous secondary battery porous film composition, nonaqueous secondary battery porous film, and nonaqueous secondary battery

    公开(公告)号:US10930914B2

    公开(公告)日:2021-02-23

    申请号:US16322711

    申请日:2017-07-14

    申请人: ZEON CORPORATION

    发明人: Takumi Sugimoto

    IPC分类号: H01M2/00 H01M2/16

    摘要: A composition for a non-aqueous secondary battery porous membrane including inorganic particles and a particulate polymer, wherein a volume-average particle diameter d0 of the inorganic particles is 0.1 μm or more and 1.0 μm or less, a weight ratio between the inorganic particles and the particulate polymer is within a range of 95:5 to 50:50, and a volume-average particle diameter d1 of the particulate polymer and the volume-average particle diameter d0 of the inorganic particles satisfy d1/d0>1; and a non-aqueous secondary battery including the same.