Battery Pack

• Main Authors: Ku, Bon Seok, Hwang, Jae Il, Jung, Jun Hee, Cho, Sei Hoon
• Format: Patent
• Language: English
• Published: 14.07.2022
• Subjects: 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

Provided is a battery pack, including a battery module array including a plurality of battery modules coupled in series and having first and second terminals, each of the plurality of battery modules including at least one battery cell, a current blocking element coupled to the battery cell and opened when an overcurrent is applied, and a sensor unit measuring state information of the battery cell and transmitting the measured information; a battery blocking unit including a first switch unit coupled to the first terminal in series, a second switch unit coupled to the second terminal in series, and a third switch unit coupled to the first and second terminals; and a battery management system turning on the third switch unit to open the current blocking element when the measured information exceeds a predetermined threshold value.