Pre-lithiated carbon-coated Si/SiOx nanospheres as a negative electrode material for advanced lithium ion capacitors
- Title
- Pre-lithiated carbon-coated Si/SiOx nanospheres as a negative electrode material for advanced lithium ion capacitors
- Author
- 김한수
- Keywords
- Lithium ion capacitor; Si/SiOx; C-coated Si/SiOx nanospheres; Negative electrodes
- Issue Date
- 2019-11
- Publisher
- ELSEVIER SCIENCE BV
- Citation
- JOURNAL OF POWER SOURCES, v. 440, article no. 227094
- Abstract
- A high-performance lithium ion capacitor (LIC) composed of activated carbon (as the positive electrode) and pre-lithiated C-coated Si/SiOx nanospheres (as the negative electrode) is investigated as a potential energy storage system for high-power and high-energy applications. Under optimized pre-lithiation conditions, the feasibility of pre-lithiated C-coated Si/SiOx nanospheres is thoroughly examined as an advanced negative electrode compared with a conventional graphite LIC using pre-lithiated C-coated Si/SiOx nanospheres. The pre-lithiated C-coated Si/SiOx nanospheres show much improved reversible capacity and rate capability with higher capacity retention at a high current density of 10C up to 1000 cycles compared with a conventional LIC. Such improvements may be attributed to the unique physical and chemical properties of C-coated Si/SiOx nanospheres. We believe that this approach provides a practical guideline for developing and successfully implementing advanced LICs.
- URI
- https://www.sciencedirect.com/science/article/pii/S0378775319310870?via%3Dihubhttps://repository.hanyang.ac.kr/handle/20.500.11754/155193
- ISSN
- 0378-7753; 1873-2755
- DOI
- 10.1016/j.jpowsour.2019.227094
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > ENERGY ENGINEERING(에너지공학과) > Articles
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