
South Korea’s Korea Electrotechnology Research Institute (KERI) has announced the development of a high-efficiency, flexible metal fiber fabric heating element. (Image courtesy of KERI)
CHANGWON, Jan. 15 (Korea Bizwire) — Korea Electrotechnology Research Institute (KERI) has announced the development of a high-efficiency, flexible metal fiber fabric heating element, potentially revolutionizing electric vehicle (EV) interior heating systems. The research team, led by Dr. Dong-Yoon Lee, unveiled this innovation on January 14, 2025.
This technology aligns with Hyundai Motor Group’s 2022 introduction of the ‘Mobility Ondol Concept,’ a novel heating system inspired by traditional Korean floor heating. Conventional vehicle heating methods, which rely on air conditioning units, often result in dry interiors and inadequate lower body warmth during prolonged use.
In contrast, the new fabric heating element utilizes radiant heat principles to provide uniform warmth, enhancing passenger comfort and potentially mitigating the reduction in EV driving range during winter months.
The metal fiber fabric heating element is crafted from ultra-fine stainless steel micro-wires, each approximately 50 micrometers in diameter—less than half the thickness of a human hair. These wires are woven into a fabric and combined with insulating layers and electrodes to function as a heating element.
When electrified, the material can reach temperatures up to 500 degrees Celsius due to the internal resistance of the metal. Its fabric-like nature ensures even heat distribution, and its flexibility allows for easy integration into various parts of a vehicle’s interior, including curved surfaces.
Performance tests indicate that, for the same electrical input, this metal fiber fabric achieves 10–30% higher heating efficiency compared to traditional heating wire methods. Additionally, the fabric maintains functionality even if partially damaged, ensuring consistent and reliable heating.
KERI anticipates that this technology will not only enhance energy efficiency in EVs by reducing the energy consumption associated with interior heating but also find applications across multiple industries.
Potential uses include manufacturing, consumer goods, medical devices, and military equipment, particularly in scenarios requiring uniform and reliable heating solutions.
Dr. Lee acknowledged the collaboration with textile manufacturer Song-i Industrial in developing specialized weaving equipment and patterns for metal fibers. He expressed optimism that this advancement will contribute to energy cost savings for businesses and support broader carbon neutrality goals.
Kevin Lee (kevinlee@koreabizwire.com)