Samsung Sdi Co., Inc.

Subin Song

Taekyung Lee

Dmitry Golovanov

Myoungseok Lee

Joosick Jung

Changyoon Chun

Provided is a method, apparatus, and computer program for diagnosing an internal short circuit of a battery pack. The method may be for diagnosing an internal short circuit of a battery pack based on a state of charge (SOC) variation amount and a balancing amount of each cell of the battery pack, and the method may include checking an SOC variation amount of the battery pack when the battery pack is in a first state, checking a balancing amount of the battery pack when the battery pack is in a second state, and determining whether the battery pack has an internal short circuit based on the checked SOC variation amount and the checked balancing amount.

Method, apparatus, and computer program for diagnosing internal short circuit of battery pack

A method of charging a battery and a battery charging system, which has a relatively high charging speed while having a relatively low level of battery deterioration. The charging method includes charging a battery cell with a first current in a first constant current mode; charging the battery cell with a first voltage in a first constant voltage mode; idling the charging of the battery cell for a first idle period (t); charging the battery cell with a second current different from the first current in a second constant current mode; and charging the battery cell with a second voltage different from the first voltage in a second constant voltage mode.

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Yongin-si, South Korea

Subin Song