One type of battery cell is known as the lithium-ion battery. 1 is a schematic view of the battery cooling system of the present disclosure; and. This innovative development strategy enables a battery system to run continuously at higher power and also facilitates quicker charging times. While certain representative embodiments and details have been shown for purposes of illustrating the invention, it will be apparent to those skilled in the art that various changes may be made without departing from the scope of the disclosure, which is further described in the following appended claims. lower temperatures. PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551). GM GLOBAL TECHNOLOGY OPERATIONS LLC, MICHIGAN, Free format text: A coolant temperature sensor 46 measures the dielectric coolant 28 temperature at the outlet 44 of the cooling element 38. The heated dielectric coolant 28 will rise and flow to the top of the battery cell stack 22 to be cooled by the cooling element 38. Dielectric Coolants specifically designed for ASIC-base cryptocurrency mining using Single-phase, Liquid Immersion Cooling tanks. Retrieved online on Mar. The present disclosure further includes a method of cooling a vehicle battery pack. The temperature sensor 46 may be located anywhere within the battery cell stack 22 as desired. 1, a vehicle battery pack with a self-contained liquid cooling system 10 of the present disclosure is there shown. Cooling systems are typically employed with lithium-ion battery packs to militate against the undesirable overheating conditions. A coolant temperature sensor 46 is located on or near the cooling element 38. Note also the relatively stable viscosity of the Dielectric fluid as temperatures range from 0 to 100 degrees Celsius. Despite their many advantages, Li-ion batteries are e… In still another embodiment, the cooling element 38 may be a thin aluminum heat sink having external chilled water travelling through the cooling element 38. Similarly, if the general location of the dielectric coolant 28 at the moment of boiling is located within the fluid channels 26 of the battery cells 20 in the center area and toward an opposing side 52 of the container 14, the dielectric coolant 28 will tend to follow flow path “B”. RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). A Lithium Ion battery cooling system for use in a hybrid vehicle comprises a plurality of self-contained liquid cooling modules, each cooling module including a closed and sealed container having an interior space. 20. In the embodiment shown, a gap 24 between each battery cell 20 is between 0.25-0.50 mm, forming a fluid channel 26 between each battery cell 20. In this free webinar, AVL ‘s Wenzel Prochazka provides unique insight into how to cool an electric vehicle battery using a dielectric fluid to remove heat from the cells, contactors and busbars. Direct contact cooling of live electronic circuits and electrical components requires a fluid with excellent thermal characteristics and dielectric properties. Dielectric fluid for power and distribution transformers, switchgear, Fire-resistant K-Class dielectric fluid for new or retro-filled power and distribution transformers, Synthetic fire-resistant K-Class dielectric fluid for high temp applications, Concentrated anti-oxidation inhibitor for field applications, Corrosive sulfur treatment for transformer oils, for Full Liquid Immersion Cooling of Electronics and Semiconductors. FIG. Liquid Dielectric Coolants for Single-phase Liquid Immersion Cooling of electronics. The Lithium Ion battery cooling system of, 16. The Lithium Ion battery cooling system of, 17. Liquid cooling methods for battery cells and packs include conductive looped cold plates or full immersion if a dielectric fluid is deployed. While non-dielectric fluids (e.g., water glycol) are often used in direct-to-chip cooling, dielectric fluids can be used in direct-to-chip applications to mitigate risks associated with leaks, increasing hardware/IT equipment reliability. The sealing of the battery cells generally begins with providing one of the plastic coated metal layers with a cavity, sometimes called a “butter dish” shape. The lithium-ion battery is rechargeable and can be formed into a wide variety of shapes and sizes so as to efficiently fill available space in electric vehicles. No. The battery assembly 18 includes a plurality of battery cells 20 having fluid channels 26 formed between the stacked cells 20. A cooling element is disposed within the interior space and cools the dielectric fluid. Assignors: GM Global Technology Operations LLC. Ricardo joins forces with M&I Materials and WMG with funding through the British government. The stakes related to cooling are high, not only to ensure safe and effective operation, but also to … The i-CoBat project aims to develop and demonstrate novel battery cooling technology for power packs used in electric vehicles. A battery assembly 18 is disposed within the interior space 16 of the container 14. Synthetic fire-resistant non-corrosive dielectric fluid for bit mining applications, Dielectric Coolants for single-phase, liquid, General cooling of servers, CPU/ASIC/GPU. Disconnect cables from terminals ALWAYS disconnect ground cable first and reconnect last Charge battery. Learn about the properites of Fluorinert liquids, the applications, history, and how the fluid exists in the world of heat transfer products. As non-conductive fluids, MIVOLT fluids can come into direct contact with electronic components, which M&I says is a more effective method of heat removal … The dielectric fluid substantially immerses and is in contact with the battery assembly to heat and cool the battery assembly. Full immersion cooling of battery cells eliminates heavy and complex heat spreaders and water coolant containment housings, while providing increased flexibility in battery cell placement. 3M™ Fluorinert™ and Novec™ fluids have both properties; are non flammable and low in toxicity over a range of boiling pints with a dielectric strength of ~40kV. Dielectric Coolants for high-voltage power, distribution transformers and switching applications. Immersion cooling is an IT cooling practice by which IT components and other electronics, including complete servers, are submerged in a thermally conductive dielectric liquid or coolant. The cooling element 38 may be a graphite foil impregnated with an electrically nonconductive polymer. By filling the gap 24 with the dielectric coolant 28, both heating and cooling can be accomplished. Purchase the best biodegradable, non-toxic, non-corrosive single-phase dielectric liquid coolants for full immersions cooling of electronics, CPUs, GPUs, FPGAs, ASICs, servers, batteries, and electric motors. A heating element 34 is located at a base area 36 of the container 14. For guidance in selecting a heat transfer solution and general application advice, contact a 3M expert. 16-18. UK-based M&I Materials has developed a new range of biodegradable dielectric fluids, MIVOLT, to provide immersion cooling for EV batteries and charging points. A 2016 comparative study on cooling methods for Li-ion batteries considered four cell-cooling methods — air cooling, direct liquid immersion, indirect liquid cooling, and fin cooling. In one embodiment, the battery assembly 18 includes a plurality of battery cells 20 such as a plurality of Lithium-ion (Li-ion) batteries for use in a hybrid vehicle. The present disclosure relates to a vehicle battery pack with a self-contained liquid cooling system. Dielectric Coolants specifically designed for ASIC-base cryptocurrency mining using Single-phase, Liquid Immersion Cooling tanks. MIVOLT is a new range of biodegradable dielectric fluids developed by M&I Materials to provide immersion cooling for electric vehicle (EV) batteries and charging points. M&I Materials, WMG and Ricardo announced a joint research project i-CoBat to develop a next generation battery cooling system, which utilizes dielectric fluid. Typical prismatic battery cells have a pair of plastic coated metal layers fused around a periphery of the battery cell in order to seal the battery cell components. 3M™ Performance Fluids. In a first embodiment, a vehicle battery pack with a self-contained liquid cooling system comprises a sealed container having an interior space; a battery assembly disposed within the interior space of the container, the battery assembly including a plurality of battery cells having at least one fluid channel formed therebetween; a dielectric fluid disposed within the at least one fluid channel in contact with the battery cells of the battery assembly and configured to heat and cool the battery assembly; a heating element disposed within the interior space configured to heat the dielectric fluid; and a cooling element disposed within the interior space configured to cool the dielectric fluid. In another embodiment, the dielectric coolant 28 may be conditioned to have a boiling point at or near a desired operating temperature of the battery cells 20. The cooling of electronic parts has become a major challenge in recent times due to the advancements in the design of faster and smaller components. The following detailed description and appended drawing describes and illustrates an embodiment of the invention. fuel, coolant, brake fluid, filters, and batteries. A heating element is disposed within the interior space and heats the dielectric fluid. 2 is a plan view of multiple battery cooling systems of the present invention connected in series. Castrol Dielectric Battery Coolant e-Fluid has a lower viscosity than conventional dielectric coolants, increasing cooling efficiency and protecting batteries against electrical breakdown. FIG. In another embodiment, a Lithium Ion battery cooling system for use in a hybrid vehicle comprises a plurality of self-contained liquid cooling modules, each of the cooling modules further comprises a sealed container having an interior space; a battery assembly disposed within the interior space of the container and including a plurality of battery cells having at least one fluid channel formed therebetween; a dielectric fluid disposed within the at least one fluid channel in contact with the battery cells of the battery assembly and configured to heat and cool the battery assembly; a heating element disposed within the interior space configured to heat the dielectric fluid; and a cooling element disposed within the interior space configured to cool the dielectric fluid. The cooling element 38 may be a chilled water condenser having an inlet 42 and an outlet 44 extending beyond the walls of the sealed container 14 for importing and exporting water for the cooling element 38. For example, the battery cell may be prismatic in shape to facilitate a stacking of the battery cells. A vehicle battery pack with a self-contained liquid cooling system comprising: a sealed container having an interior space; a battery assembly disposed within the interior space of the container, the battery assembly including a plurality of battery cells having at least one fluid channel formed therebetween; a dielectric fluid disposed within the at least one fluid channel in contact with the battery cells of the battery assembly and configured to heat and cool the battery assembly; a heating element disposed within the interior space configured to heat the dielectric fluid; and. The dielectric coolant 28 is in contact with the battery cells 20 through the fluid channels 26 formed by gaps 24. 16-20, 2003, p. 1-7. Owner name: In another embodiment, the gap 24 may be less than 0.25 mm. In turn, the heat generated from each cooling module 12 may be expelled through the outlet 44 to the coolant 130 by a conduit 80. We offer everything from antifreeze, motor oil, brake cleaner, battery cleaner, transmission fluid, and so much more. Each cooling module includes a battery assembly disposed within the interior space of the container and a plurality of battery cells having at least one fluid channel formed therebetween for receiving a fluid therein. It is understood that other gap sizes can be used as desired. In another embodiment, the gap 24 may be less than 0.25 mm. batteries. The modules 12 are connected in series. The Lithium Ion battery cooling system of. BATTERY: Check the fluid in the battery at frequent intervals. The battery assembly 18 typically is fully immersed within the dielectric coolant 28 and the dielectric coolant 28 is received within the fluid channels 26, completely contacting each of the battery cells 20. With reference to FIG. AmpCool Dielectric Coolants are materially compatible with all materials commonly used in electric motors, hydraulic systems, and with all battery chemistries. In a further embodiment, a method of cooling a vehicle battery pack comprises the steps of: providing a sealed container having an interior space; providing a battery assembly within the interior space of the container and including a plurality of battery cells having at least one fluid channel formed therebetween; providing a dielectric fluid within the interior space; immersing at least a portion of the battery assembly with the dielectric fluid; causing the dielectric fluid to flow about the plurality of battery cells throughout the interior space of the container; and cooling the dielectric fluid during operation of the vehicle to maintain a substantially uniform surface temperature over each of the plurality battery cells. 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