Lg Chem, Ltd

Seongtae Kim

Jin Kyu Lee

DalMo Kang

JunSeok Choi

Taehyuck Kim

Taehwan Roh

Min Chul Jang

In Cur Shin

Tae Hwan Roh

Yong Shik Shin

Tae Hyuck Kim

YoJin Kim

Jun Seok Choi

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, at least one pressure driven switch configured to cause a short circuit in a portion or the entirety of the battery pack upon detecting expansion in volume of the battery cells or the battery modules when the power supply unit malfunctions, 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 when the short circuit occurs in the battery pack, 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.

Battery pack of improved safety

A battery module including a unit cell assembly including two or more battery cells or unit modules; a left case coupled to a left side of the assembly, the left case provided at a left outer side thereof with a first fastening groove extending parallel to a longitudinal direction of the battery module such that a sensing assembly is fastened into the first groove, the left case being provided at opposite ends thereof with second fastening grooves formed parallel to a height direction of the battery; and a right case coupled to a right side of the assembly, an external input and output terminal oriented to a front of the battery, the right case provided at a right inner side thereof with a plurality of fixing grooves formed parallel to a longitudinal direction of the assembly such that the assembly is fastened and fixed into the fixing grooves is provided.

Battery module and battery assembly comprising the same

Disclosed is a battery module including a plurality of plate-shaped battery cells which are sequentially stacked, wherein the battery module is configured to have a structure in which two or more hexahedral cell units are connected to each other in series in a state in which the hexahedral cell units are stacked, each of the cell units is configured to have a structure in which two or more battery cells are connected to each other in series in a state in which the battery cells are in tight contact with each other, and electrode terminals (outermost electrode terminals) of outmost battery cells of the cell units are connected to external input and output terminals of the battery module, the outermost electrode terminals having a larger vertical sectional area than electrode terminals of the other battery cells such that the outermost electrode terminals are prevented from being broken by external force.

Battery module of improved reliability and battery pack employed with the same

Disclosed herein is a battery pack configured such that battery modules, each of which includes a plurality of battery cells or unit modules connected to each other in series, are connected to each other in series in a state in which the battery modules are in tight contact with each other or stacked adjacent to each other, the battery pack including a fuse connected in series in an electrical connection circuit between the battery modules and a circuit breaker mounted at an outside of at least one of the battery modules to perform electric conduction when the battery cells swell, the circuit breaker being electrically connected to the electrical connection circuit to break the fuse when electric conduction is performed due to swelling of the battery cells.

Disclosed herein is a battery module having a plurality of battery cells electrically connected to each other, the battery module including a voltage sensing unit including voltage sensing terminals electrically connected to electrode terminal connection portions of the battery cells and a conduction part connected to the voltage sensing terminals to transmit voltages detected by the voltage sensing terminals to a module control unit and a signal cutoff unit located between the voltage sensing terminals and the conduction part to interrupt transmission of the detected voltages when a short circuit occurs in the conduction part.

Growing community of inventors

Incheon, South Korea

Seongtae Kim