A team of researchers from Republic of Korea, led by Associate Professor Geon-Hyoung An at the Department of Energy and Materials Engineering at Dongguk University, has proposed graphene-coated stainless steel foil as a novel alternative current collector.
This innovation overcomes the common challenges of corrosion and poor conductivity seen in water-based systems and operates stably even under high-mass loading conditions, which is essential for practical use. Notably, the battery exhibited high specific capacities exceeding 1 mAh cm-2, as well as retained 88.7% of its capacity after 1,500 cycles, a strong indicator of long-term durability. Furthermore, because this technology supports roll-to-roll manufacturing, it opens the door to large-scale production, bringing zinc-ion batteries closer to commercialization in the energy storage sector.
Consequently, this research could contribute significantly to the global shift toward clean and resilient energy systems. By reducing dependence on expensive or hazardous materials, this technology supports the development of a more sustainable and circular battery economy. In the long run, this could play a role in mitigating climate change, enhancing energy equity, and accelerating the global energy transition.