Effect of oxide layer thickness to nano-Si anode for Li-ion batteries
- Authors
- Yu, Byeong-Chul; Hwa, Yoon; Park, Cheol-Min; Kim, Jae-Hun; Sohn, Hun-Joon
- Issue Date
- 2013
- Publisher
- ROYAL SOC CHEMISTRY
- Citation
- RSC ADVANCES, v.3, no.24, pp 9408 - 9413
- Pages
- 6
- Journal Title
- RSC ADVANCES
- Volume
- 3
- Number
- 24
- Start Page
- 9408
- End Page
- 9413
- URI
- https://scholarworks.bwise.kr/kumoh/handle/2020.sw.kumoh/22389
- DOI
- 10.1039/c3ra41006d
- ISSN
- 2046-2069
- Abstract
- Oxide thickness controlled amorphous SiO2/nano-Si core-shell structure anode for Li ion batteries was easily prepared by etching with NaOH solution using commercial nano-Si with a native oxide. Based on X-ray diffraction patterns and analysis of high resolution transmission microscope images, the electrode which consists of amorphous SiO2/amorphous Si/core crystalline Si after the first cycle showed a selflimiting reaction behavior. Due to this unique dual core-shell structure for a short diffusion path, a high reversible capacity of about 1800 mAh g(-1) over 50 cycles and excellent rate capability could be achieved.
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Collections - Department of Materials Science and Engineering > 1. Journal Articles
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