BATTERY PACK HAVING IMPROVED SAFETY

• Main Authors: WON, Seong Yeon, KANG, Yun Hyeok, LEE, Tae Kyeong
• Format: Patent
• Language: English; French; German
• Published: 17.01.2024
• Subjects: BASIC ELECTRIC ELEMENTS; CURRENT COLLECTORS; ELECTRICITY; LINE CONNECTORS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

Disclosed are a battery pack with improved safety and a secondary battery including the same. More particularly, disclosed is a battery pack including two or more submodules, each submodule having a plurality of unit cells, and each unit cell having an electrode assembly and an electrode lead protruding from the electrode assembly; a pack case configured to receive the submodules; a busbar assembly including a busbar configured to electrically connect the electrode leads of the submodules to each other and a busbar frame connected to the busbar; a connection busbar configured to connect the submodules to each other; a terminal unit comprising a cluster of electrode leads electrically connected to each other via the busbar, the terminal unit being connected to the connection busbar; and a blocking structure configured to wrap the terminal unit, the busbar assembly, and the upper end and the side surface of the connection busbar at the portion thereof connected to the terminal unit.