Development of Maxsin Energy Storage Device... Capacity Increased Fourfold

Fabrication of MXene/Carbon Nanotube (CNT)-Based Supercapacitors with 500 nm Line Width

[Asia Economy Reporter Hwang Junho] A MXene-based energy storage nano-device (supercapacitor) with more than four times the electric capacity has been developed using semiconductor process technology. It is expected to be utilized in various fields such as electric vehicles and energy storage systems (ESS).

The Korea Nano Technology Institute announced on the 7th that through joint research with Drexel University in the United States, they have developed technology to create such materials, and the related research results were recently introduced in the international journal Nano Energy.

The joint research team used semiconductor process technology (photolithography), electron beam lithography technology, and focused ion beam (FIB) technology, which are fine linewidth control techniques, to fabricate supercapacitor devices applying MXene-carbon nanotube composite material (MXene) with a 500nm linewidth on a large-area 8-inch wafer. This device secured high electric capacity (317mF/cm2, a 4-fold improvement) and fast charge-discharge performance.

Dr. An Chi-won, the lead researcher, stated, "It is significant that we confirmed the commercialization potential of ultra-small and high-performance energy devices, which are core technologies in the nano energy field, through the convergence of 8-inch nano process technology and nano material technology."

Director Lee Jo-won said, "The developed technology is a joint research achievement with overseas research groups, and the institute plans to strengthen its role as an R&D hub providing a platform for international joint R&D and exchange between domestic and foreign researchers."

Meanwhile, MXene used in this device is a two-dimensional plate-like nanomaterial with excellent electrical conductivity. It is used as an electrode in energy storage devices, sensors, and electromagnetic wave shielding. A supercapacitor is a capacitor with an extremely large storage capacity that utilizes charging phenomena caused by ion movement or surface chemical reactions at the electrode-electrolyte interface.

Efficiency of Energy Devices According to the Line Width of MXene-Based Supercapacitor Devices

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