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- Nam, Dongho;
- Mohd Sarofil, Anith Dzhanxinah;
- Park, Hyeon Seo;
- Kim, Jaehoon
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0초록
Porous silicon (PSi) was encapsulated in a silicon oxycarbide (SiOC) matrix with tunable free-carbon-domain (FCD) content derived from silicone oil and divinylbenzene. Electrochemical tests including cyclic voltammetry, galvanostatic cycling, and impedance spectroscopy were performed. The high-FCD composite (HC-Si@SiOC) delivered a reversible capacity of 948 mAh g−1 with 66% capacity retention after 200 cycles at 200 mA g−1, while a full cell using graphite-blended HC-Si@SiOC anode and NCM523 cathode delivered 152 mAh g−1 initial capacity with 71% retention after 50 cycles. These results demonstrate that FCD-engineered SiOC coatings enhance conductivity and structural resilience of PSi anodes, enabling stable long-term cycling.
키워드
- 제목
- Structurally tuned SiOC–porous silicon microstructures for enhanced electrochemical performance of silicon anodes
- 저자
- Nam, Dongho; Mohd Sarofil, Anith Dzhanxinah; Park, Hyeon Seo; Kim, Jaehoon
- 발행일
- 2026
- 유형
- Article