Freestanding rGO-SWNT-STN Composite Film as an Anode for Li Ion Batteries with High Energy and Power Densitiesopen access
- Authors
- Song, Taeseup; Choi, Junghyun; Paik, Ungyu
- Issue Date
- Dec-2015
- Publisher
- MDPI AG
- Keywords
- Si-Ti-Ni alloy; graphene; carbon nanotubes; freestanding electrode; Li ion batteries
- Citation
- NANOMATERIALS, v.5, no.4, pp.2380 - 2390
- Indexed
- SCIE
SCOPUS
- Journal Title
- NANOMATERIALS
- Volume
- 5
- Number
- 4
- Start Page
- 2380
- End Page
- 2390
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/155735
- DOI
- 10.3390/nano5042380
- ISSN
- 2079-4991
- Abstract
- Freestanding Si-Ti-Ni alloy particles/reduced graphene oxide/single wall carbon nanotube composites have been prepared as an anode for lithium ion batteries via a simple filtration method. This composite electrode showed a 9% increase in reversible capacity, a two-fold higher cycle retention at 50 cycles and a two-fold higher rate capability at 2 C compared to pristine Si-Ti-Ni (STN) alloy electrodes. These improvements were attributed to the suppression of the pulverization of the STN active material by the excellent mechanical properties of the reduced graphene oxide-single wall carbon nanotube networks and the enhanced kinetics associated with both electron and Li ion transport.
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