POWER STORAGE DEVICE AND METHOD FOR MANUFACTURING POWER STORAGE DEVICE

    公开(公告)号:US20250038378A1

    公开(公告)日:2025-01-30

    申请号:US18681122

    申请日:2022-09-21

    Abstract: A power storage device includes a case, a power storage element, a lead, and a sealing member. The sealing member includes an insulating gasket that includes a base; and a conductive sealing plate. The sealing plate includes a displaceable part that includes a protrusion projecting toward the power storage element. The base is disposed between the sealing plate and the power storage element. The power storage device further includes a reinforcing member reinforcing the base. The base includes a first through hole, and the reinforcing member includes a second through hole. The protrusion is inserted in the first and second through holes. The protrusion is connected to the lead. The protrusion is disconnected from the lead when displaced in a direction away from the lead in response to an increase in internal pressure of the case.

    Energy storage device
    3.
    发明授权

    公开(公告)号:US12183511B2

    公开(公告)日:2024-12-31

    申请号:US17799167

    申请日:2020-12-18

    Abstract: The present disclosure relates to an energy storage device comprising: a housing for accommodating an electrolyte; an electrode element accommodated inside the housing; a case coupled to one side of the housing; and an electrode terminal inserted into the case so as to be electrically connected to the electrode element, wherein the case comprises: a base part having a through-hole into which the electrode terminal is inserted; and a sealing part coupled to the base part so as to seal the space between the base part and the electrode terminal, and the sealing part includes a terminal sealing member located at the through-hole so as to come into close contact with the electrode terminal, thereby sealing the space between the base part and the electrode terminal.

    Electrochemical energy storage device

    公开(公告)号:US12100550B2

    公开(公告)日:2024-09-24

    申请号:US17618552

    申请日:2020-06-08

    CPC classification number: H01G11/80 H01G11/18 H01G11/74 H01G11/82

    Abstract: An electrochemical energy storage device comprises: a cover plate (4), comprising a lead-out bar (41) and a fixing plate (42), wherein the lead-out bar (41) is a conductor, the fixing plate (42) is an insulator, and the lead-out bar (41) vertically passes through the fixing plate (42) and is fixed thereon; a housing (9), which is cylindrical and is provided with an opening at at least one end thereof, wherein the insulating fixing plate (42) and the opening of the housing (9) are connected in a sealed manner by means of a sealing ring (2); and a rolled core (7), provided in an inner cavity of the housing (9), wherein the rolled core (7) is conductively connected to the lead-out bar (41) by means of an upper connecting piece (6), and is conductively connected to another lead-out end of the housing (9) by means of a lower connecting piece (8); and the device further comprises: a welding ring (1), conductively connected to the housing (9) by means of welding, and a welding bar (3), conductively connected to the lead-out bar (41) of the cover plate (4) by means of welding, wherein the welding ring (1) and the welding bar (3) are provided on the same side of the housing (9). The upper connecting piece (6) and the lower connecting piece (8) respectively lead out the positive electrode and the negative electrode of the electrochemical energy storage device, and lead the positive electrode and the negative electrode to the outside. The device is led out at two ends, has a low internal resistance, and can be tin-soldered, thereby facilitating the assembly of modules.

    Electrochemical energy storage device

    公开(公告)号:US12068109B2

    公开(公告)日:2024-08-20

    申请号:US17618552

    申请日:2020-06-08

    CPC classification number: H01G11/80 H01G11/18 H01G11/74 H01G11/82

    Abstract: An electrochemical energy storage device comprises: a cover plate (4), comprising a lead-out bar (41) and a fixing plate (42), wherein the lead-out bar (41) is a conductor, the fixing plate (42) is an insulator, and the lead-out bar (41) vertically passes through the fixing plate (42) and is fixed thereon; a housing (9), which is cylindrical and is provided with an opening at at least one end thereof, wherein the insulating fixing plate (42) and the opening of the housing (9) are connected in a sealed manner by means of a sealing ring (2); and a rolled core (7), provided in an inner cavity of the housing (9), wherein the rolled core (7) is conductively connected to the lead-out bar (41) by means of an upper connecting piece (6), and is conductively connected to another lead-out end of the housing (9) by means of a lower connecting piece (8); and the device further comprises: a welding ring (1), conductively connected to the housing (9) by means of welding, and a welding bar (3), conductively connected to the lead-out bar (41) of the cover plate (4) by means of welding, wherein the welding ring (1) and the welding bar (3) are provided on the same side of the housing (9). The upper connecting piece (6) and the lower connecting piece (8) respectively lead out the positive electrode and the negative electrode of the electrochemical energy storage device, and lead the positive electrode and the negative electrode to the outside. The device is led out at two ends, has a low internal resistance, and can be tin-soldered, thereby facilitating the assembly of modules.

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