A system for mitigating fire within a battery storage container enclosing an energy storage system includes a sensor configured to detect a precursor condition indicative of a potential fire or explosion, a controller, and a set of extendable battery trays, each including a tray ejector and containing a set of battery cells. The controller detects a precursor condition in a battery tray via the sensor and ejects the battery tray to increase the distance between the battery tray and adjacent battery trays. The system can include a cooling channel in the battery tray configured to cool the set of battery cells, and/or a nozzle configured to direct fluid into the battery tray to suppress the precursor condition. In one variation, the system includes a door of the container configured to open, venting the interior of the container in response to detection of a precursor condition indicating a potential explosion.

A system for mitigating fire within a battery storage container enclosing an energy storage system includes a sensor configured to detect a precursor condition indicative of a potential fire or explosion, a controller, and a set of extendable battery trays, each including a tray ejector and containing a set of battery cells. The controller detects a precursor condition in a battery tray via the sensor and ejects the battery tray to increase the distance between the battery tray and adjacent battery trays. The system can include a cooling channel in the battery tray configured to cool the set of battery cells, and/or a nozzle configured to direct fluid into the battery tray to suppress the precursor condition. In one variation, the system includes a door of the container configured to open, venting the interior of the container in response to detection of a precursor condition indicating a potential explosion.

A fire prevention apparatus includes an inner pipe having multiple perforations along a length of the inner pipe. The fire prevention apparatus also includes an outer pipe surrounding the inner pipe, the outer pipe having a slit along a length of the outer pipe. The fire prevention apparatus also includes fire retardant disposed in a gap between the inner pipe and the outer pipe. The outer pipe is configured to compress when a force is applied to the outer pipe, so as to cause the fire retardant to pass through the perforations into the inner pipe.

A battery pack includes at least one cell assembly including a plurality of secondary batteries stacked in a direction, a module housing having an internal space in which the at least one cell assembly is received, and a spacer member interposed between the plurality of secondary batteries, and configured to press the plurality of secondary batteries in two directions to space the plurality of secondary batteries apart when a temperature of at least one of the plurality of secondary batteries is equal to or higher than a predetermined temperature.

An energy storage system includes: stacked battery modules; and a rack accommodating the battery modules. The rack includes a sidewall disposed on one side of the battery modules, and the sidewall includes a fire-resistant member opposing the battery modules.

An energy storage system includes: stacked battery modules; and a rack accommodating the battery modules. The rack includes a sidewall disposed on one side of the battery modules, and the sidewall includes a fire-resistant member opposing the battery modules.

A battery pack includes at least one battery module arranged in one direction and having a cell assembly including a plurality of secondary batteries arranged in one direction; and a fire extinguishing unit having a fire extinguishing tank configured to contain a fire extinguishing agent therein, a pipe connected to the fire extinguishing tank to supply the fire extinguishing agent from the tire extinguishing tank to the at least one battery module, and a fire extinguishing valve configured so that, when an internal gas of the battery module is heated over a predetermined temperature, an inner configuration of the fire extinguishing valve is partially deformed by the heated internal gas to open an output hole thereof so as to supply the fire extinguishing agent from the fire extinguishing tank into the battery module.

A battery pack includes at least one battery module arranged in one direction and having a cell assembly including a plurality of secondary batteries arranged in one direction; and a fire extinguishing unit having a fire extinguishing tank configured to contain a fire extinguishing agent therein, a pipe connected to the fire extinguishing tank to supply the fire extinguishing agent from the tire extinguishing tank to the at least one battery module, and a fire extinguishing valve configured so that, when an internal gas of the battery module is heated over a predetermined temperature, an inner configuration of the fire extinguishing valve is partially deformed by the heated internal gas to open an output hole thereof so as to supply the fire extinguishing agent from the fire extinguishing tank into the battery module.

The present invention discloses a battery pack charging system, comprising battery packs and a charging cabinet, a nitrogen replacement device is arranged inside the charging cabinet, the charging cabinet provides charging and nitrogen filling for the battery packs, wherein: there is a gas-filling protective device arranged between the nitrogen replacement device and the battery packs, and the gas-filling protective device is used to regulate the gas-filling flow of nitrogen automatically. Also disclosed is a charging method of the battery pack charging system. Beneficial effects: Different from the existing battery pack forms of electric bicycles, the present invention provides a feasible technical support for the “shared power changing” of the existing electric bicycle battery packs; Secondly, on the basis of improving the battery pack of electric bicycles, a battery cupboard capable of charging and filling nitrogen into the battery pack at the same time is provided for the battery pack, thus fundamentally preventing the thermal runaway of the battery; Moreover, a new method is provided for filling nitrogen into the battery pack, avoiding the defects of using double solenoid valves and oxygen concentration sensors in the existing technologies.

An electric outlet fire detection and prevention system may comprise a temperature sensor and an electromagnetic interference (EMI) sensor. A processor within the system may monitor the measurements of the temperature and EMI sensors to determine that a fire has developed in an electric outlet box. The processor may then actuate a triggering mechanism in a cartridge containing fire extinguishing material such that the fire extinguishing material is dispersed in the outlet box. The fire extinguishing material may extinguish a developing fire and prevent the fire from spreading further. The processor may also be coupled with a server, which is configured to analyze measurements of the temperature and the EMI sensors and generate a building profile. When the server determines that any measurements deviate from the building profile, the server may instruct the processor to actuate the triggering mechanism and/or notify an electronic device associated with the building.