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    Primary dry cell with fail-safe vent
    6.
    发明授权
    Primary dry cell with fail-safe vent 失效
    带有故障安全通气口的干细胞

    公开(公告)号：US3877992A

    公开(公告)日：1975-04-15

    申请号：US38444673

    申请日：1973-08-01

    Applicant: UNION CARBIDE CORP

    Inventor： URRY LEWIS F

    IPC: H01M2/12 ,  H01M1/06

    CPC classification number: H01M2/1282 ,  H01M2/1235

    Abstract: Disclosed is a primary dry cell, and particularly a magnesium cell, incorporating a fail-safe vent in the seal closure for the cell container, wherein the seal closure includes an annular insulating cover fitting tightly around the central carbon electrode rod forming a juncture therebetween which is tightly sealed except for a gas-venting passageway formed by complementary portions of the cover and carbon electrode rod. During normal operation of the cell, the gas-venting passageway is closed by a normally solid fusible sealant material. The sealant has a softening or melting point which substantially corresponds to some critical high internal cell temperature at which it is necessary to vent gas from inside the cell.

    Abstract translation: 公开了一种初级干电池，特别是镁电池，其在电池容器的密封封闭件中并入有故障保护通风口，其中密封封闭件包括环形绝缘盖，其紧密地配合在中心碳电极棒周围，形成在它们之间的接合部 除了由盖和碳电极棒的互补部分形成的排气通道之外，密封。 在电池的正常操作期间，排气通道由通常为固体的可熔密封材料封闭。 密封剂具有软化或熔点，其基本上对应于需要从电池内部排出气体的一些关键的高内部电池温度。

    Primary dry cell
    10.
    发明授权
    Primary dry cell 失效

    公开(公告)号：US3888699A

    公开(公告)日：1975-06-10

    申请号：US39161173

    申请日：1973-08-27

    Applicant: UNION CARBIDE CORP

    Inventor： URRY LEWIS F

    IPC: H01M6/06 ,  H01M21/00

    CPC classification number: H01M6/06

    Abstract: Disclosed is a primary dry cell comprising a zinc anode, a cathode depolarizer mix cake containing manganese dioxide and a conductive material, and a separator interposed between the anode and cathode depolarizer mix cake, the cathode depolarizer mix cake being wetted with an inner electrolyte consisting essentially of an aqueous solution containing a metallic salt of a halogen-containing acid especially, though not exclusively, a zinc salt such as zinc chloride, the inner electrolyte constituting from about 60 to 71 percent by volume of the total cathode depolarizer mix cake.

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