BATTERY PACK WITH IMPROVED SAFETY

Disclosed herein is a battery pack including a power supply unit including two or more battery cells or battery modules electrically connected to each other, a cut-off portion located at at least one series connection region between the battery cells or the battery modules to interrupt electrical co...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	CHOI, JUNSEOK, KIM, SEONGTAE, KIM, TAEHYUCK, ROH, TAEHWAN, LEE, JIN KYU
Format:	Patent
Sprache:	eng ; pol
Schlagworte:	BASIC ELECTRIC ELEMENTS CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY SYSTEMS FOR STORING ELECTRIC ENERGY
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Beschreibung
Zusammenfassung:	Disclosed herein is a battery pack including a power supply unit including two or more battery cells or battery modules electrically connected to each other, a cut-off portion located at at least one series connection region between the battery cells or the battery modules to interrupt electrical connection in the battery pack upon occurrence of a short circuit of the battery cells or the battery modules guided by a pressure driven switch, the pressure driven switch connected in parallel to the battery cells or the battery modules at which the cut-off portion is located to detect expansion in volume of the battery cells or the battery modules when the power supply unit malfunctions and to guide occurrence of a short circuit of the battery cells or the battery modules, and external input and output terminals connected to electrode terminals located at outermost sides of the power supply unit to supply power to an external device.