Facile conductive surface modification of Si nanoparticle with nitrogen-doped carbon layers for lithium-ion batteries
- Title
- Facile conductive surface modification of Si nanoparticle with nitrogen-doped carbon layers for lithium-ion batteries
- Author
- 조국영
- Keywords
- Lithium-ion batteries; Anode; Silicon; Carbon-coating; Nitrogen-doping; PERFORMANCE ANODE MATERIALS; SILICON; COMPOSITE; TIO2; LIFE
- Issue Date
- 2016-10
- Publisher
- SPRINGER
- Citation
- JOURNAL OF SOLID STATE ELECTROCHEMISTRY, v. 20, No. 10, Page. 2873-2878
- Abstract
- Modified Si nanoparticles were investigated as an anode material for lithium-ion batteries. The Si nanoparticle surfaces were modified with conductive, N-doped carbon layers and prepared by a simple pyrolysis process using an ionic liquid that contained nitrogen. After the heat treatment, the N-doped carbon layers were uniformly coated onto the Si nanoparticles. The smooth carbon layers connected the Si nanoparticles without any morphological changes. Si nanoparticles containing 34 wt.% N-doped carbon exhibited the best electrochemical performance with a capacity of similar to 1145 mAh g(-1) and excellent capacity retention over 100 cycles. The high electrochemical performance was attributed to the N-doped carbon layers that improved the electrical conductivity and minimized the volume expansion associated with the alloy during cycling.
- URI
- https://link.springer.com/article/10.1007%2Fs10008-016-3291-7https://repository.hanyang.ac.kr/handle/20.500.11754/70997
- ISSN
- 1432-8488; 1433-0768
- DOI
- 10.1007/s10008-016-3291-7
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MATERIALS SCIENCE AND CHEMICAL ENGINEERING(재료화학공학과) > Articles
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