Method For Determining Charging Profile Of Battery And Battery Charging System Using Same

Abstract: A method for determining a charging profile of a battery, according to the present invention, comprises the steps of: determining a reference state of charge (SOC) corresponding to a lithium precipitation boundary potential, by using a test cell; determining a first charging profile by performing, on the test cell, CC charging up to the reference SOC and performing CV charging for maintaining constant voltages of positive electrode terminals and negative electrode terminals in a subsequent SOC section; determining a second charging profile by performing, on the test cell, CC charging up to the reference SOC and performing CV charging to keep a constant voltage between a negative electrode surface and the positive electrode terminal after the reference SOC; and correcting a third charging profile obtained from a battery including a plurality of cells, by using a difference between the first and second charging profiles.

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