화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.83, 438-448, March, 2020
DOI10.1016/j.jiec.2019.12.017  Export Citation
Fibrous network of highly integrated carbon nanotubes/MoO3 composite bundles anchored with MoO3 nanoplates for superior lithium ion battery anodes
Se Hwan Oh, Seong Mi Park, Dong-Won Kang1, †, Yun Chan Kang2, †, and Jung Sang Cho†
  • Department of Engineering Chemistry, Chungbuk National University, Gaesin-Dong, Seowon-Gu, Cheongju-Si, Chungcheongbuk-Do, 361-763, Republic of Korea
  • 1School of Energy Systems Engineering, Chung-Ang University, Seoul, 06974, Republic of Korea
  • 2Department of Materials Science and Engineering, Korea University, Anam-Dong, Seongbuk-Gu, Seoul, 136-713, Republic of Korea
E-mail:, ,
Fibrous network of highly-integrated CNTs/MoO3 composite bundle in which CNTs anchored with MoO3 nanoplates was prepared by electrospinning process and subsequent simple heat-treatment. By performing the pre-acid-treatments of both CNTs and PAN, dipole-dipole interactions and hydrogen bonding between CNTs and PAN could form MoO2(acac)2-PAN-CNTs complex in a solution, which allows for the formation of a stable jet during electrospinning. Notably, by selectively removing PAN in as-spun fibers during heat-treatment, a highly integrated CNTs/MoO3 bundle network anchored with MoO3 nanoplates was obtained. This unique CNTs/MoO3 percolation network makes it possible to achieve a superior lithium ion storage performance by improving electrical conductivity and structure stability. Thus, the unique nanostructure has high discharge capacities of 972 mA h g-1 after 100 cycles at 1.0 A g-1 and 905 mA h g-1 after 800 long-term cycles at 2.0 A g-1, when applied as anode materials for lithium-ion batteries. The discharge capacities of 980, 920, 819, 742, 599, 484, and 374 mA h g-1 were observed at current densities of 0.5, 1.0, 2.0, 3.0, 5.0, 7.0, and 10.0 A g-1, respectively.
Keywords:MoO3;CNTs;Lithium ion batteries;Anode materials;Electrospinning
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