Kang, Chiwon Baskaran, Rangasamy Hwang, Junyeon Ku, Bon-Cheol Choi, Wonbong 2024-01-20T10:04:51Z 2024-01-20T10:04:51Z 2021-09-05 2014-03 0008-6223 https://pubs.kist.re.kr/handle/201004/127034 There has been strong interest in flexible, lightweight and reliable rechargeable batteries to meet the requirements of today's portable devices. To build such flexible rechargeable batteries with high efficiency, new architectures for current collectors need to be developed. The porous 3-dimensional (3D) electrode architecture has been proposed to increase the efficiency of a Li-ion battery by using its higher surface area, shorter diffusion path and higher volumetric capacity than those of 2D electrodes. Herein we fabricated an array structure of 3D multiwall carbon nanotubes (MWCNTs)-graphene on transparent and flexible polyethylene terephthalate (PET) film through a simple lamination process. The transferred 3D column structure of MWCNTs onto graphene-PET film showed structural integrity and low contact resistance at high angle bending. The new flexible 3D MWCNTs-graphene-PET electrode yielded excellent C-rate capability and specific capacity with high Coulombic efficiency of over 99%. The novel 3D MWCNTs-graphene nanostructure fabricated on flexible film could provide a wide range of applications in next-generation flexible and light weight batteries and energy storages. (C) 2013 Elsevier Ltd. All rights reserved. English PERGAMON-ELSEVIER SCIENCE LTD ENERGY-STORAGE DEVICES CONDUCTIVE PAPER ANODE ELECTRODES SUPERCAPACITORS NANOFIBERS GROWTH COPPER FILMS THIN Large scale patternable 3-dimensional carbon nanotube-graphene structure for flexible Li-ion battery Article 10.1016/j.carbon.2013.11.026 1 CARBON, v.68, pp.493 - 500 CARBON 68 493 500 scie scopus 000330814200050 2-s2.0-84891560849 Chemistry, Physical Materials Science, Multidisciplinary Chemistry Materials Science Article ENERGY-STORAGE DEVICES CONDUCTIVE PAPER ANODE ELECTRODES SUPERCAPACITORS NANOFIBERS GROWTH COPPER FILMS THIN Li battery TEM Graphene Nanotube