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1. 发明专利

JP2014006189A Degradation diagnostic device of lithium ion secondary battery 有权
标题翻译：锂离子二次电池的降解诊断装置
公开(公告)号：JP2014006189A
公开(公告)日：2014-01-16
申请号：JP2012143051
申请日：2012-06-26
申请人： Imv Corp , Imv株式会社
发明人： KAWAHIRA TAKAO , UCHIYAMA YASUHIRO , KOJIMA JUMPEI , KATSURAI TORU , KAWADA KOJI , KOBAYASHI TOSHIYUKI , NISHINA TATSUO
IPC分类号： G01R31/36 , H01M10/48
CPC分类号： G01R31/362 , B60L11/1861 , G01R31/3627 , G01R31/3679 , H01M10/44 , H01M10/48
摘要： PROBLEM TO BE SOLVED: To provide a diagnostic device which can reduce measurement time without complicating a circuit configuration.SOLUTION: A charging circuit 2 is a circuit for supplying a current to a secondary battery 10 to charge it. Charge current interruption means 4 controls interruption of a charge current to or a discharge current from the secondary battery 10 being charged or discharged. A voltage measurement unit 6 measures a terminal voltage of the secondary battery 10 right after current interruption. Diagnostic means 8 determines whether the secondary battery 10 is degraded or not on the basis of the measured voltage. The diagnostic means 8 determines whether the secondary battery 10 is degraded or not in accordance with the fact that, if the secondary battery 10 is degraded, the voltage of the secondary battery 10 right after current interruption is steeply changed in comparison with that of the secondary battery 10 which is not degraded.
摘要翻译：要解决的问题：提供一种可以减少测量时间而不使电路配置复杂化的诊断装置。解决方案：充电电路2是用于向二次电池10供电以对其充电的电路。充电电流中断装置4控制来自充电或放电的二次电池10的充电电流或放电电流的中断。电压测量单元6在电流中断之后立即测量二次电池10的端电压。诊断装置8基于测量的电压确定二次电池10是否劣化。诊断装置8根据二次电池10劣化的情况确定二次电池10是否劣化，与二次电池10相比，电流中断之后的二次电池10的电压急剧变化未劣化的电池10。

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