Si/SiOx-Conductive Polymer Core-Shell Nanospheres with an Improved Conducting Path Preservation for Lithium-Ion Battery
- Title
- Si/SiOx-Conductive Polymer Core-Shell Nanospheres with an Improved Conducting Path Preservation for Lithium-Ion Battery
- Author
- 김한수
- Keywords
- core-shell materials; lithium-ion batteries; metal oxides; polymers; silicon
- Issue Date
- 2016-08
- Publisher
- WILEY-V C H VERLAG GMBH
- Citation
- CHEMSUSCHEM, v. 9, NO. 19, Page. 2754-2758
- Abstract
- Non-stoichiometric SiOx based materials have gained much attention as high capacity lithium storage materials. However, their anode performance of these materials should be further improved for their commercial success. A conductive polymer, poly(3,4-ethylenedioxythiophene): poly(4-styrenesulfonate) (PE-DOT:PSS), is employed as a flexible electrical interconnector to improve the electrochemical performance of Si/SiOx nanosphere anode materials for lithium ion batteries (LIBs). The resulting Si/SiOx-PEDOT: PSS core-shell structured material with the small amount (1 wt%) of PEDOT: PSS shows the improved initial reversible capacity of 968.2 mA hg(-1) with excellent long-term cycle performance over 200 cycles. These promising properties can be attributed to the use of the electroconductive and flexible PEDOT: PSS shell layer, which protects the electrical conduction pathways in the electrode from the large volume changes of silicon during cycling.
- URI
- https://onlinelibrary.wiley.com/doi/abs/10.1002/cssc.201600798https://repository.hanyang.ac.kr/handle/20.500.11754/75122
- ISSN
- 1864-5631; 1864-564X
- DOI
- 10.1002/cssc.201600798
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > ENERGY ENGINEERING(에너지공학과) > Articles
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