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    • 10. 发明授权
    • Method for grouping unit cells using pattern matching technology of impedance spectrum
    • 使用阻抗谱图案匹配技术对单位单元进行分组的方法
    • US06674287B2
    • 2004-01-06
    • US10208608
    • 2002-07-30
    • Jee-Hwan JangHyun-Kyung SungSang-Hyo Ryu
    • Jee-Hwan JangHyun-Kyung SungSang-Hyo Ryu
    • G01N27416
    • H01M10/482
    • A method for grouping unit cells of a similar impedance spectrum uses pattern matching technology to optimize the performance of a battery pack made of primary or secondary batteries as the unit cells connected in series, in parallel or in combination of them. To make an optimal battery pack with unit cells of a different internal characteristic, the method includes measuring the impedance spectrum of the individual unit cell in a wide frequency region at the same temperature and in the same state of charge (SOC), digitizing the difference in impedance spectrum among the unit cells into a relative value using the pattern matching technology, and selecting unit cells of a most similar impedance spectrum (i.e., a smallest relative difference in impedance spectrum) to make a battery pack.
    • 用于对类似阻抗谱的单位单元进行分组的方法使用模式匹配技术来优化由主单元或二次电池组成的电池组的性能,所述单电池串联,并联或组合连接。 为了制造具有不同内部特性的单位电池的最佳电池组,该方法包括在相同温度和相同充电状态(SOC)的宽频率区域中测量各单元电池的阻抗谱,数字化差分 使用模式匹配技术将单位单元之间的阻抗谱转换成相对值,并选择最相似阻抗谱的单位单元(即,阻抗谱中的最小相对差),以制作电池组。