|Title||Professor Moon Joon-hyeok Develops High Energy Density ‘Carbon Nanotube Ball’ Material|
Professor Moon Joon-hyeok Develops High Energy Density ‘Carbon Nanotube Ball’ Material
- Lithium battery with high energy density twice that of existing carbon materials posted on ACS Nano -
The research team of Professor Moon Joon-hyeok at the Department of Chemical Engineering and Bioscience (Kwon Dong-hwi in the doctor’s course and Hwang Jeong-tae in the master’s course) succeeded in synthesizing ‘carbon nanotube ball’ by massing carbon nanotube like a round skein of thread. It was proved that this material can realize a high energy density twice that of existing lithium batteries.
Porous carbon material with various sizes of pores is essential to realize an electrode for a next-generation energy element. Carbon nanotube is one of the nanomaterials close to commercialization, but it was difficult to make a high-density assembly with fine pores due to its shaping tendency of becoming tangled. The research team of Professor Moon Joon-hyeok developed a technology capable of massing carbon nanotube like a round skein of thread using hydraulic power and then used this technology to produce ‘carbon nanotube ball’. The ‘carbon nanotube ball’ includes a plurality of fine pores and has a hierarchical porous structure. The team was able to make a next-generation lithium-sulfur battery through collaborative research with LG Chem using the material. The battery showed a high energy density twice that of existing lithium batteries.
Professor Moon Joon-hyeok said, “The carbon nanotube ball was produced by controlling the nanostructure of commercial nanomaterial, and as it has proved its excellent energy storage property, it is expected to become a commercial material with a strong influence on the industry.”
The results of the research were posted online on ‘ACS Nano’ (Impact factor: 13.942) of the American Chemical Society on January 4, 2018.
□ Thesis title and author information
- Spherical Macroporous Carbon Nanotube Particles with Ultrahigh Sulfur Loading for Lithium−Sulfur Battery Cathodes, ACS Nano, 2017. (http://pubs.acs.org/doi/abs/10.1021/acsnano.7b05869)
<’Carbon nanotube ball’ like a round skein of thread>