Liquid reserve batteries for low temperature activation and performance in munitions

    公开(公告)号:US11335916B2

    公开(公告)日:2022-05-17

    申请号:US17095660

    申请日:2020-11-11

    摘要: A liquid reserve battery including: a collapsible storage unit having a collapsible cavity for storing a liquid electrolyte therein; and a battery cell in communication with an outlet of the collapsible storage unit, the battery cell having gaps dispersed therein. Wherein the collapsible storage unit includes: a top plate having three or more first sides; a bottom plate having three or more second sides, each of the three or more first sides being angularly offset from a corresponding one of the three or more second sides about a central axis, the top plate being linearly offset from the bottom plate in a longitudinal direction along the central axis; and for each of the three of more first sides, first and second triangular sidewalls connecting the top plate bottom plate and each other.

    BATTERY
    73.
    发明申请
    BATTERY 有权

    公开(公告)号:US20220149466A1

    公开(公告)日:2022-05-12

    申请号:US17498300

    申请日:2021-10-11

    IPC分类号: H01M50/186 H01M50/60

    摘要: A battery includes a metal battery can that has a tubular portion having an opening edge portion at one end of the tubular portion and a bottom portion closing the other end of the tubular portion; an electrode body that is accommodated in the battery can; an electrolytic solution that fills the battery can; and a sealing member that has an outer peripheral surface disposed to face an inner peripheral surface of the opening edge portion of the tubular portion and seals the opening edge portion, in which a part of the inner peripheral surface of the opening edge portion and a part of the outer peripheral surface of the sealing member are joined by a melting portion, and a preventing portion, which prevents the electrolytic solution from rising toward a position, in which the melting portion is formed, between the inner peripheral surface of the opening edge portion and the outer peripheral surface of the sealing member, is provided on the outer peripheral surface of the sealing member, the preventing portion being closer to the bottom portion than the melting portion is.

    Battery, battery module, battery pack and electric vehicle

    公开(公告)号:US11258129B2

    公开(公告)日:2022-02-22

    申请号:US17019852

    申请日:2020-09-14

    摘要: A battery includes a case and a battery core assembly disposed in the case, the battery core assembly includes a plurality of battery core groups and an receiving space holding the plurality of battery core groups, the battery core groups are connected in series, and the battery core group includes at least one battery core; a separator plate is disposed between at least two adjacent battery core groups, the separator plate divides the receiving space into a plurality of receiving cavities, each of the receiving cavities holds one or more battery core groups , and a cavity wall of the receiving cavity comprised by a connection of the separator plate and a separation membrane; and the battery further includes a liquid injection channel and the liquid injection channel in a sealed state, the liquid injection channel is disposed on at least one of the separation membranes and the separator plates.

    Valve system for an electrochemical power supply source, in particular for an underwater vehicle, and corresponding electrochemical power supply source

    公开(公告)号:US11211674B2

    公开(公告)日:2021-12-28

    申请号:US16818460

    申请日:2020-03-13

    申请人: LEONARDO S.p.A.

    摘要: An electrochemical-type power supply source is provided with: an electrochemical stack generating electric power, in the presence, internally, of electrolytic fluid, provided with a number of distinct groups of galvanic cells and of a corresponding number of electrolyte inlet pipes for introducing electrolyte into respective groups of galvanic cells and with electrolyte outlet pipes for extracting electrolyte from respective groups of galvanic cells; a main tank, fluidically coupled to the electrochemical stack and containing electrolytic fluid; and a recirculation system, defining a circulation path of the electrolytic fluid between the main tank and the electrochemical stack. A valve system that can be coupled to the electrolyte inlet and/or outlet pipes and operatively controllable to modify hydraulic and electric characteristics of the circulation path, in response to a power delivery condition by the power supply source.

    Secondary battery having filling valve

    公开(公告)号:US11201379B2

    公开(公告)日:2021-12-14

    申请号:US15979978

    申请日:2018-05-15

    申请人: LG CHEM, LTD.

    摘要: The secondary battery includes a body part provided in a pillar shape on an outer wall and including a passage, through which the electrolyte flows, therein, a pin switch extending in a longitudinal direction of the body part, wherein, when a pressure is applied to an end of the pin switch, the pin switch linearly moves toward the inside, and when the pressure is removed, the pin switch linearly moves toward the outside, a manipulation part to move in a direction that is parallel to the pin switch, a pressure apply part protruding from a central portion of the manipulation part to apply a pressure an end of the pin switch, and a switching part disposed on the other end of the pin switch to open and close the passage.

    Secondary battery and method for manufacturing the same

    公开(公告)号:US11056749B2

    公开(公告)日:2021-07-06

    申请号:US16333858

    申请日:2018-07-12

    申请人: LG Chem, Ltd.

    摘要: To solve the above-described objects, a method for manufacturing a secondary battery according to an embodiment of the present invention comprises: manufacturing an electrode assembly in which electrodes and a separator are alternately stacked; inserting the electrode assembly into a battery case through an opening; covering the opening of the battery case; injecting an electrolyte into the battery case through an injection hole formed in the battery case; closing the injection hole; performing a pre-formation process; and applying external force to a switch of a gas discharge device formed on one surface of the battery case, thereby linearly moving a gasket of the gas discharge device and opening a gas discharge hole, such that a first gas generated in the battery case is discharged to an outside of the battery case during the performing of the pre-formation process.

    Metal negative electrode cell
    80.
    发明授权

    公开(公告)号:US10938073B2

    公开(公告)日:2021-03-02

    申请号:US16492860

    申请日:2018-02-27

    申请人: Ineova Corp.

    摘要: In a metal negative cell in which the negative electrode mainly comprises a metal such as aluminum, magnesium, zinc, lithium, etc., self discharge readily occurs when the negative electrode and an electrolytic solution are in contact, and the problem of large capacity loss of the cell readily occurs. The metal negative cell is provided with a metal negative cell in which the self-discharge amount is reduced, and the capacity loss of the cell is reduced during use or storage, whereby the metal negative cell varies the cell output according to demand.