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DIAGNOSTIC DEVICE FOR DEGRADATION OF RECHARGEABLE LI-ION BATTERY

  • US 20130342212A1
  • Filed: 03/15/2013
  • Published: 12/26/2013
  • Est. Priority Date: 06/26/2012
  • Status: Active Grant
First Claim
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1. A diagnostic device for degradation of rechargeable battery comprising:

  • means for breaking charge current of the rechargeable battery connected to charge circuit at charging or discharge current of the rechargeable battery connected to discharge circuit at discharging;

    a voltage measurement part which measures terminal voltage of the rechargeable battery in which charge current or discharge current is broken by the breaking means; and

    means for diagnosing degradation of the rechargeable battery based on the temporal change of terminal voltage measured by the voltage measurement part.

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