Lg Energy Solution, Ltd.

O Jong Kwon

Ki Woong Kim

The present invention relates to a secondary battery in which a temperature sensor is used to trace temperatures in real-time at several positions within the secondary battery and specify a time and point at which abnormal heat generation starts, to prevent deterioration due to transfer of heat to the whole system and improve safety of a product and stability of the whole system, and a detecting system. The secondary battery according to the present invention includes an electrode assembly, in which a plurality of unit cells including a positive electrode, a negative electrode, and a separator are stacked, and a case in which the electrode assembly is accommodated. The electrode assembly further includes a temperature sensor that measures a temperature therein.

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Daejeon, South Korea

O Jong Kwon