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US 2022/0021090 A1Published application
Battery pack with energy drain resistor for preventing fire propagation
AssigneeLG Energy Solution, Ltd.
InventorsEun-Gyu SHIN, Jeong-O MUN, Jae-Min YOO, Yoon-Koo LEE
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Abstract
A battery pack includes a plurality of battery modules arranged along at least one direction, a resistor connected to an abnormal battery module that operates abnormally among the battery modules to absorb energy, an event detector provided to detect the abnormal battery module, a switch to connect or disconnect each of the battery modules to/from the resistor to selectively form a closed circuit, and a controller to receive information from the event detector and control the switch to form a current path between the abnormal battery module and the resistor.
Claims10
A battery pack comprising:
- a plurality of battery modules arranged along at least one direction;
- an event detector provided to detect at least one abnormal battery module among the plurality of battery modules;
- a resistor connectable to the plurality of battery modules to absorb energy from the at least one abnormal battery module;
- a switch to connect or disconnect each of the plurality of battery modules to/from the resistor to selectively form a closed circuit;
- and
- a controller to receive information from the event detector and control the switch to form a current path between the at least one abnormal battery module and the resistor.
3 more elements
Dependencies are inferred from the claim text.