| CPC G01R 31/3835 (2019.01) [B60L 58/10 (2019.02); H01M 10/425 (2013.01); H01M 10/4285 (2013.01); H01M 2010/4278 (2013.01)] | 6 Claims |
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1. A battery diagnosis system comprising:
a sensor that measures a voltage of a secondary battery; and
a processor configured to diagnose whether the secondary battery is a genuine product based on a voltage curve indicating a time change of a voltage measured by the sensor during a diagnosis target period, the diagnosis target period including both a charging and discharging period and a charging and discharging pause period; and
when the secondary battery is diagnosed not to be a genuine product, to display a warning message on a display device of the battery diagnosis system;
wherein the processor is configured to diagnose whether the secondary battery is a genuine product based on a comparison result between the voltage curve and a normal curve, the normal curve indicates a time change of a voltage of the genuine product during the diagnosis target period; and
wherein the processor is configured to diagnose that the secondary battery is a genuine product, when a rate of change on the voltage curve at a first timing during the charging and discharging period is within a first reference range and a rate of change on the voltage curve at a second timing during the charging and discharging pause period is within a second reference range, the first reference range and the second reference range are determined based on the normal curve.
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