Battery pack including fire suppression means
AssigneeLG Energy Solution, Ltd.
InventorJin Kyu LEE
Life of this patent
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Abstract
A battery pack includes a means configured to, when an abnormal phenomenon, such as fire outbreak or heat generation, occurs in a battery cell, prevent fire or heat from propagating to another battery cell adjacent thereto. The battery pack includes a plurality of battery cells, a case configured to receive the plurality of battery cells, an energy discharging means configured to discharge energy of the battery pack when the abnormal phenomenon occurs, and a fire extinguishing means configured to discharge aerosol at an operating temperature or higher in order to extinguish flames generated in the battery pack.
Claims20
A method for controlling a plurality of battery modules, the method comprising:
- detecting, via a controller, an abnormal event in which a temperature of a first battery module among the plurality of battery modules exceeds a threshold temperature;
- connecting, via the controller, the first battery module to an energy discharger having a resistor in order to discharge heat from the first battery module such that a second battery module among the plurality of battery modules is not directly connected to the energy discharger;
- discharging the first battery module via the energy discharger by providing energy from the first battery module to the resistor;
- and
- activating a cooler associated with the resistor after connecting the first battery module to the energy discharger.
A method for controlling a battery module array having a plurality of battery modules, the method comprising:
- detecting, via a controller, a temperature of a first battery module among a plurality of battery modules exceeding a threshold temperature;
- connecting, via the controller, the first battery module to an energy discharger having a resistor in order to discharge heat from the first battery module such that a second battery module among a plurality of battery modules is not directly connected to the energy discharger;
- discharging the first battery module via the energy discharger by providing energy from the first battery module to the resistor;
- and
- activating a cooler associated with the resistor after connecting the first battery module to the energy discharger.
A battery module array, comprising:
- a plurality of battery modules;
- an energy discharger having a resistor;
- a cooler associated with the resistor;
- and
- a controller configured to discharge a first battery module among the plurality of battery modules during an abnormal event in which a temperature of the first battery module exceeds a threshold temperature by connecting the first battery module to the energy discharger such that a second battery module among a plurality of battery modules is not directly connected to the energy discharger.
Dependencies are inferred from the claim text.