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    • 2. 发明申请
    • Method for Checking for Leakage from Tubular Batteries
    • 检查管状电池泄漏的方法
    • US20080137807A1
    • 2008-06-12
    • US11722930
    • 2005-11-24
    • Hironori YukisadaTakahito TakahashiMasao NakamuraKazutoshi OkuboMasaya Nakata
    • Hironori YukisadaTakahito TakahashiMasao NakamuraKazutoshi OkuboMasaya Nakata
    • G01N23/223
    • G01N23/223G01M3/38G01N2223/076H01M2/022H01M10/4228H01M10/4285
    • In a method for checking for leakage from tubular batteries, when tubular batteries (Ba) are fed with their respective axial centers aligned in parallel to each other to pass through a leakage check mechanism (12), a sealed end face (33) of the tubular batteries (Ba) is irradiated with an X-ray (34). A fluorescent X-ray (40) coming out of the sealed end face (33) is incident upon a detector (39) through a detection window (35). In accordance with the result of analysis on whether the incident fluorescent X-ray (40) contains a fluorescent X-ray (40) associated with an electrolyte component, it is determined whether leakage has occurred from the tubular batteries (Ba). A length (L1, L3, L5) of the detection window (35) in a direction of feed of the tubular batteries (Ba) is set to be less than a spacing (C1, C2) between the tubular batteries (Ba). A length (L2, L4, L6) of the detection window (35) in an orientation orthogonal to the direction of feed is set to be greater than an outer size (R1, R2) of the cross-sectional shape of the tubular batteries (Ba) in an orientation orthogonal to their axial center. It is thus possible to highly accurately determine occurrence of leakage from a tubular battery at high speeds by X-ray fluorescence analysis.
    • 在一种用于检查管状电池泄漏的方法中,当管状电池(Ba)被供给彼此相对的轴向中心以彼此平行排列以通过泄漏检查机构(12)时,密封的端面(33) 管状电池(Ba)被X射线照射(34)。 从密封端面(33)出来的荧光X射线(40)通过检测窗(35)入射到检测器(39)上。 根据对入射荧光X射线(40)是否含有与电解质成分有关的荧光X射线(40)的分析结果,判断是否发生了管状电池(Ba)的泄漏。 在管状电池(Ba)的供给方向上的检测窗口(35)的长度(L 1,L 3,L 5)被设定为小于管状电池之间的间隔(C 1,C 2) (Ba)。 在与进给方向正交的方向上的检测窗口(35)的长度(L 2,L 4,L 6)被设定为大于横截面形状的外部尺寸(R 1,R 2) 的管状电池(Ba)的方向与其轴心正交。 因此,可以通过X射线荧光分析来高精度地确定管状电池的高速泄漏的发生。