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    • 1. 发明授权
    • Current interrupt apparatus for electrochemical cells
    • 电化学电池的电流中断装置
    • US06210824B1
    • 2001-04-03
    • US09216046
    • 1998-12-18
    • Steven K. SullivanMark G. DexterKevin R. French
    • Steven K. SullivanMark G. DexterKevin R. French
    • H01M212
    • H01M2/345H01H35/343H01H37/54H01M2/1241H01M2/34H01M2/348
    • End cap apparatus (2) is received in the open end of an electrochemical cell casing (6) and is particularly adapted to be crimped thereto electrically separated from the casing by a gasket (4). The end cap apparatus incorporates current interrupt safety protection features including high rate overcharge protection through an over-temperature and/or low pressure switch (22, 12d-18, 18′, 18″, 118a), low rate overcharge and overdischarge protection through a low pressure switch (12d-18, 18′, 18″, 118a), extended short circuit protection through an over-temperature switch driven by l2r heating of internal components (20, 22, 16, 12, 12′, 16′, 16″, 16′″, 12v, 102, 122, 120), and pressure venting through a frangible portion (12e) of a diaphragm. The diaphragm can be integrally formed with a header (12, 12″, 12′″, 12iv) or can be a separate element (32, 82, 92, 108, 112, 112′ 112″, 112′″).
    • 端盖装置(2)容纳在电化学电池壳体(6)的开口端,并且特别适于通过垫圈(4)压接到其上与壳体电隔离。 端盖装置包含电流中断安全保护功能,包括通过过温和/或低压开关(22,12d-18,18',18“,118a)的高速率过充电保护,低速率过充电和过放电保护,通过 低压开关(12d-18,18',18“,118a)通过由内部组件(20,22,16,12,12',16')的加热驱动的过温开关来延长短路保护, ,16“,16”“,12v,102,122,120),并且通过隔膜的易碎部分(12e)排出压力。 隔膜可以与集管(12,12“,12”',12iv)一体地形成,或者可以是分离的元件(32,82,92,108,112,112'112“,112”', )。