SEOUL,
South Korea, Dec. 18,
2024 /PRNewswire/ -- Hyundai Mobis (KRX 012330)
announced on 18th that it has developed a new battery cell cooling
material to prevent battery overheating during ultra-fast charging
of electric vehicles. Hyundai Mobis aims to secure world-class
battery cooling technology and commercialize it to enhance its
competitiveness in the future mobility market.
This material, referred to as the 'Pulsating Heat Pipe,' is
composed of aluminum alloy and refrigerant and is placed between
battery cells to lower the internal battery temperature that spikes
during rapid charging. Even when battery heat generation increases
during ultra-fast charging, it is expected to significantly reduce
electric vehicle charging time by implementing a stable thermal
management system capable of withstanding the heat.
Heat pipes are metal-tube-shaped thermal conductors that enhance
heat transfer efficiency between two objects and are
high-heat-dissipation materials used for cooling electronic devices
such as computer CPUs and smartphones. Specifically, pulsating heat
pipes diffuse heat through the vibration and circulation of
refrigerant internally, resulting in minimal performance
degradation due to gravity even when applied to high-speed moving
vehicles. With over ten times the heat transfer performance
compared to standard aluminum, they rapidly move the heat from
overheated battery cells to the exterior.
Typically, battery systems (BSA) are constructed by adding
battery management systems (BMS), cooling fans, and various
electronic devices to multiple battery modules (BMA). BMA, which
directly generates electrical energy, is a module-level component
with multiple battery cells stacked, and optimizing the cooling
structure to prevent battery cell overheating is critical. Hyundai
Mobis successfully placed PHPs between each battery cell. They
quickly transferred the heat generated in each cell to cooling
blocks, thereby stably controlling the internal temperature at
the module level.
Hyundai Mobis applied a press process enabling large-scale
continuous production in the manufacturing stage, simplifying the
PHP manufacturing process and reducing production costs.
Additionally, to facilitate mounting on vehicle batteries, it
achieved PHPs with a thickness of only 0.8 mm, which is
significantly thinner and has a larger area than standard heat
pipes (approximately 6 mm). This enhancement in product quality
aims to promote the adoption of electric vehicles.
Media Contact
Choon Kee Hwang:
ckhwang@mobis.com
Myong Sun Song: sms@mobis.com
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