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    METHOD FOR PRODUCING NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
    2.
    发明公开
    METHOD FOR PRODUCING NONAQUEOUS ELECTROLYTE SECONDARY BATTERY 审中-公开

    公开(公告)号：EP4002535A1

    公开(公告)日：2022-05-25

    申请号：EP21207750.7

    申请日：2021-11-11

    Applicant: Prime Planet Energy & Solutions, Inc.

    Inventor： KADOI, Masafumi ,  SAKURAI, Takahiro

    IPC: H01M10/04 ,  H01M10/0587 ,  H01M50/103 ,  H01M50/536 ,  H01M50/618

    Abstract: The present disclosure provides a method for producing a nonaqueous electrolyte secondary battery that allows a nonaqueous electrolyte solution to permeate, reliably and in a short time, into a wound electrode body. The method for producing a nonaqueous electrolyte secondary battery disclosed herein includes at least a winding step of forming a wound electrode body, a terminal connection step of connecting an electrode terminal to the wound electrode body, and a sealing step of accommodating the wound electrode body inside a battery case, and thereafter sealing the battery case. The production method disclosed herein includes, between the winding step and the terminal connection step, a permeation step of immersing a wound electrode body 20 in a nonaqueous electrolyte solution 30, and repeatedly pressing and releasing the wound electrode body 20. In the permeation step, the space between electrodes in the wound electrode body 20 is repeatedly opened and blocked to elicit a pumping effect such that the nonaqueous electrolyte solution 30 is pumped into the wound electrode body 20. As a result, the nonaqueous electrolyte solution 30 can be caused to sufficiently permeate in a shorter time than in conventional methods.

    BATTERY, BATTERY MODULE, BATTERY PACK, AND AUTOMOBILE
    4.
    发明公开
    BATTERY, BATTERY MODULE, BATTERY PACK, AND AUTOMOBILE 审中-公开

    公开(公告)号：EP4087000A1

    公开(公告)日：2022-11-09

    申请号：EP21740642.0

    申请日：2021-01-12

    Applicant: BYD Company Limited

    Inventor： SUN, Huajun ,  LU, Zhipei ,  ZHU, Yan ,  HU, Shichao

    IPC: H01M10/0525 ,  H01M50/102 ,  H01M50/578 ,  H01M50/618 ,  H01M50/579

    Abstract: A cell (100) is provided, which includes a metal housing (11) and multiple electrode core strings encapsulated in the metal housing (11). The multiple electrode core strings are arranged in a second direction and sequentially connected in series. Each of the electrode core strings includes an encapsulation film (13) and multiple electrode core assemblies (12) arranged in a first direction and sequentially connected in series. The electrode core assemblies (12) are encapsulated in the encapsulation film (13). An atmospheric pressure between the metal housing (11) and the encapsulation film (13) is lower than an atmospheric pressure outside the metal housing (11).

    BEFÜLLVORRICHTUNG ZUM BEFÜLLEN EINER BATTERIEZELLE MIT EINEM ELEKTROLYT SOWIE VERFAHREN ZUM BETREIBEN EINER BEFÜLLVORRICHTUNG
    5.
    发明公开
    BEFÜLLVORRICHTUNG ZUM BEFÜLLEN EINER BATTERIEZELLE MIT EINEM ELEKTROLYT SOWIE VERFAHREN ZUM BETREIBEN EINER BEFÜLLVORRICHTUNG 审中-实审

    公开(公告)号：EP4425694A1

    公开(公告)日：2024-09-04

    申请号：EP23160033.9

    申请日：2023-03-03

    Applicant: VAF Gesellschaft für Verkettungsanlagen, Automationseinrichtungen und Fördertechnik mbH

    Inventor： Stumpf, Markus ,  Huber, Tobias

    IPC: H01M50/618 ,  H01M50/627 ,  H01M50/673 ,  H01M10/42

    CPC classification number: H01M10/4214 ,  H01M50/618 ,  H01M50/627 ,  H01M50/673

    Abstract: Die Erfindung betrifft eine Befüllvorrichtung (2) zum Befüllen einer Batteriezelle (4) mit einem Elektrolyt, mit mindestens einer Verteilereinheit (6), die mindestens eine Aufnahme (8), die mindestens einen Flanschabschnitt (10), mit dem die Verteilereinheit (6) an einer eine Öffnung (12) umfassenden Anlagefläche (14) einer Batteriezelle (4) flächenhaft anliegend anordenbar ist, die mindestens eine von der Aufnahme (8) bis zum Flanschabschnitt (10) erstreckte, durchgehende Aussparung (16), wobei die Aussparung (16) zumindest im Bereich des Flanschabschnitts (10) zumindest abschnittweise mit der Öffnung (12) der Anlagefläche (14) der Batteriezelle (4) überlappt, und die mindestens einen Fluidkanal (18) umfasst, welcher mit einer Kanalöffnung (20) am Flanschabschnitt (10) zumindest abschnittsweise mit der Öffnung (12) der Anlagefläche (14) der Batteriezelle (4) überlappend mündet, mit mindestens einer Befülleinheit (22), die in oder an der Aufnahme (8) der Verteilereinheit (6) festgelegt ist und durch die der Batteriezelle (4) unmittelbar oder über die Aussparung (16) der Verteilereinheit (6) mittelbar ein Elektrolyt zuführbar ist, und mit mindestens einer Druckeinstelleinheit (24), der mindestens einer des mindestens einen Fluidkanals (18) funktional zugeordnet ist und die mindestens ein mit mindestens einem des mindestens einem Fluidkanals (18) in Fluidverbindung bringbares oder stehendes Druckreduktionsmittel (26), insbesondere eine Vakuumpumpe, umfasst.

    REINFORCED BIPOLAR BATTERY ASSEMBLY
    6.
    发明公开
    REINFORCED BIPOLAR BATTERY ASSEMBLY 审中-公开

    公开(公告)号：EP4304001A2

    公开(公告)日：2024-01-10

    申请号：EP23204618.5

    申请日：2017-11-21

    Applicant: Advanced Battery Concepts, LLC

    Inventor： O.Shaffer II, Edward ,  Hobday, Donald

    IPC: H01M50/618

    Abstract: A battery assembly is disclosed comprising (a) one or more stacks of a plurality of electrode plates comprising (i) one or more bipolar plates comprising a substrate having an anode on one surface and a cathode on an opposing surface and (ii) a separator and a liquid electrolyte located between each of the electrode plates; (b) a first end plate having a first end plate internal reinforcement structure, attached at an end of the one or more stacks; and (c) a second end plate having a second end plate internal reinforcement structure, attached at an opposing end of the one or more stacks as the first end plate; wherein (A) the first end plate is a first electrode plate including a first base, wherein the first base includes the first end plate internal reinforcement structure, (B) the second end plate is a second electrode plate including a second base, wherein the second base includes the second end plate internal reinforcement structure, (C) the first base is the substrate of the first electrode plate, and (D) the second base is the substrate of the second electrode plate.

    LIQUID INJECTION DEVICE AND LIQUID INJECTION METHOD
    9.
    发明公开
    LIQUID INJECTION DEVICE AND LIQUID INJECTION METHOD 审中-实审

    公开(公告)号：EP4354648A1

    公开(公告)日：2024-04-17

    申请号：EP22882655.8

    申请日：2022-10-09

    Applicant: Contemporary Amperex Technology Co., Limited

    Inventor： SHI, Qiming ,  WANG, Zhiming ,  HUANG, Caixia

    IPC: H01M50/618

    CPC classification number: Y02E60/10 ,  H01M50/618 ,  H01M50/609

    Abstract: The present application relates to the technical field of battery fabrication, and relates in particular to a liquid injection device and a liquid injection method. The liquid injection device comprises a liquid injection assembly, a gas extraction assembly and a gas injection assembly. The liquid injection assembly has a liquid injection end, and the liquid injection end is used to communicate with an inner cavity of a housing. The gas extraction assembly has a gas extraction end, and the gas extraction end is used to communicate with the inner cavity of the housing. The gas injection assembly has a gas intake end and a gas injection end, the gas intake end is used to communicate with a gas storage container, and the gas injection end is used to communicate with the inner cavity of the housing, wherein the gas storage container stores a target gas, and the target gas is soluble in an electrolyte solution. The liquid injection device and the liquid injection method provided in the embodiments of the present application may improve the liquid injection efficiency for battery cells.

    REINFORCED BIPOLAR BATTERY ASSEMBLY
    10.
    发明公开
    REINFORCED BIPOLAR BATTERY ASSEMBLY 审中-实审

    公开(公告)号：EP4304001A3

    公开(公告)日：2024-04-17

    申请号：EP23204618.5

    申请日：2017-11-21

    Applicant: Advanced Battery Concepts, LLC

    Inventor： O.Shaffer II, Edward ,  Hobday, Donald

    IPC: H01M6/48 ,  H01M10/04 ,  H01M50/618 ,  H01M50/242 ,  H01M4/86

    CPC classification number: H01M10/0418 ,  H01M10/044 ,  H01M10/0468 ,  H01M6/48 ,  Y02E60/10 ,  Y02P70/50 ,  H01M50/618 ,  H01M10/0486 ,  H01M50/242 ,  H01M4/8631 ,  H01M2004/869420130101

    Abstract: A battery assembly is disclosed comprising (a) one or more stacks of a plurality of electrode plates comprising (i) one or more bipolar plates comprising a substrate having an anode on one surface and a cathode on an opposing surface and (ii) a separator and a liquid electrolyte located between each of the electrode plates; (b) a first end plate having a first end plate internal reinforcement structure, attached at an end of the one or more stacks; and (c) a second end plate having a second end plate internal reinforcement structure, attached at an opposing end of the one or more stacks as the first end plate; wherein (A) the first end plate is a first electrode plate including a first base, wherein the first base includes the first end plate internal reinforcement structure, (B) the second end plate is a second electrode plate including a second base, wherein the second base includes the second end plate internal reinforcement structure, (C) the first base is the substrate of the first electrode plate, and (D) the second base is the substrate of the second electrode plate.

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