A research team led by Jihee Yoon of the Advanced Materials Research Division (Korea Institute of Materials Science; KIMS), in collaboration with a team led by Insung Hwang of Korea Electrotechnology Research Institute (KERI), has developed Korea's first shape-controlled graphite granule-based dry electrode manufacturing technology capable of producing high-performance batteries without using polytetrafluorethylene (PTFE), a key material in conventional dry-electrode processes.
The work is published in the journal Energy Storage Materials.
The technology is expected to extend electric vehicle (EV) driving range, reduce charging time and accelerate the commercialization of next-generation environmentally friendly battery manufacturing processes.
As demand for electric vehicles and energy storage systems (ESS) continues to grow, competition to develop high-energy-density batteries with longer operating life and faster charging capabilities has intensified. In particular, dry-electrode technology, which minimizes the use of organic solvents and drying processes during battery manufacturing, has emerged as a promising next-generation production method.
Although dry-electrode technology offers significant advantages in reducing manufacturing costs and carbon emissions, most existing approaches rely heavily on PTFE, making the development of alternative technologies a critical challenge.
