Emergency rapid cooling capsule embedded within an electric vehicle
AssigneePolestar Performance AB
InventorJongseok Moon
Life of this patent
Estimating the term…
Abstract
An emergency rapid cooling system configured to provide rapid cooling to an electric vehicle battery pack during a thermal event. The emergency rapid cooling system including at least one capsule filled with a fluid, the at least one capsule including at least one nozzle positioned in proximity to at least one battery cell, wherein the at least one nozzle is configured to open upon reaching at least one of a determined temperature or pressure, thereby enabling the fluid within the at least one capsule to rapidly decrease in pressure and accompanying temperature to provide cooling to the at least one battery cell.
Claims16
An electric vehicle battery pack including an embedded capsule configured to provide rapid cooling during a thermal event, the electric vehicle battery pack comprising:
- a plurality of battery cells;
- at least one capsule filled with a fluid, the at least one capsule including a plurality of nozzles positioned in proximity to the plurality of battery cells;
- and
- at least one sensor and an electronic control unit in communication with the plurality of nozzles, wherein the electronic control unit is configured to selectively open one or more of the plurality of nozzles upon detection of the thermal event via the at least one sensor,
- wherein the one or more nozzles are configured to open upon reaching at least one of a determined temperature or pressure, wherein the one or more nozzles enable the fluid to rapidly decrease in pressure and accompanying temperature to provide cooling to at least one battery cell of the plurality of battery cells, wherein the fluid is an inert substance stored at room temperature, which, when said one or more nozzles are opened, releases through the one or more nozzles, thereby rapidly decreasing in pressure and accompanying temperature.
An emergency rapid cooling system configured to provide rapid cooling to an electric vehicle battery pack during a thermal event, the emergency rapid cooling system comprising:
- at least one capsule filled with a fluid;
- at plurality of nozzles configured to transition between an initial close position and an open position to release the fluid within the capsule, wherein the fluid is an inert substance stored at room temperature, which, when at least one of said plurality of nozzles is in said opened position, decreases in pressure and accompanying temperature;
- at least one sensor configured to detect the thermal event within the electric vehicle battery pack;
- and
- an electronic control unit communicatively coupling the at least one sensor to the plurality of nozzles,
- wherein the electronic control unit is configured to selectively open one or more of the plurality of nozzles upon detection of said thermal event via the at least one sensor.
An electric vehicle comprising:
- a plurality of battery cells;
- and
- an emergency rapid cooling system including at least one capsule filled with a fluid, the at least one capsule including a plurality of nozzles;
- and
- at least one sensor and an electronic control unit in communication with the plurality of nozzles, wherein the electronic control unit is configured to selectively open one or more of the plurality of nozzles upon detection of a thermal event via the at least one sensor to enable the fluid within the capsule to be dispensed to provide cooling to at least one battery cell of the plurality of battery cells, wherein the fluid is an inert substance stored at room temperature, which, when said one or more nozzles are opened, decreases in pressure and accompanying temperature.
Dependencies are inferred from the claim text.