3D multiwall carbon nanotubes (MWCNTs) for Li-ion battery anode
- Authors
- Kang, Chiwon; Lahiri, Indranil; Baskaran, Rangasamy; Choi, Mansoo.; Kim, Won-Gi; Sun, Yang Kook; Choi, Wonbong
- Issue Date
- Mar-2012
- Publisher
- Minerals, Metals and Materials Society
- Keywords
- 3D Cu current collector; Anode materials; Carbon nanotubes; Li-ion batteries
- Citation
- TMS Annual Meeting, v.2, pp.35 - 41
- Indexed
- SCOPUS
- Journal Title
- TMS Annual Meeting
- Volume
- 2
- Start Page
- 35
- End Page
- 41
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/27592
- DOI
- 10.1002/9781118357002.ch5
- ISSN
- 0000-0000
- Abstract
- Carbon nanotubes have attracted great attention as promising electrode materials for Li-ion batteries due to major advantages including large surface area and low resistance path. We developed novel multiwall carbon nanotubes (MWCNTs) based 3-dimensional anode for high-efficiency Li-ion batteries. The MWCNTs were synthesized through catalytic thermal chemical vapor deposition (CVD) on 3-dimensional Cu electrode. The 3D Cu electrode played a crucial role in accommodating much larger number of MWCNTs, leading to more amount of Li + ion intake. Results from electrochemical characterization of Li-ion battery with 3D anode indicate better properties as compared to those with MWCNTs on 2D Cu foil anode. In addition, MWCNTs with sputtered amorphous Si (a-Si) layer on them (a-Si/MWCNTs core-shell structure) were also used as anode using a 3D geometry and improved electrochemical properties of these modified MWCNT anode were observed. Moreover, relation between electrochemical performance and structural properties of the MWCNTs and hybrid a-Si/MWCNTs composite on 3D Cu electrode is discussed.
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