Effects of sulfur doping on graphene-based nanosheets for use as anode materials in lithium-ion batteries
- Authors
- Yun, Young Soo; Le, Viet-Duc; Kim, Haegyeom; Chang, Sung-Jin; Baek, Seung Jae; Park, Sungjin; Kim, Byung Hoon; Kim, Yong-Hyun; Kang, Kisuk; Jin, Hyoung-Joon
- Issue Date
- Sep-2014
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Lithium-ion battery; Anode; Graphene; Sulfur; Doping
- Citation
- JOURNAL OF POWER SOURCES, v.262, pp 79 - 85
- Pages
- 7
- Journal Title
- JOURNAL OF POWER SOURCES
- Volume
- 262
- Start Page
- 79
- End Page
- 85
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/45785
- DOI
- 10.1016/j.jpowsour.2014.03.084
- ISSN
- 0378-7753
1873-2755
- Abstract
- Graphene-based nanosheets (GNS) have been studied for use in electrochemical energy storage devices. A deeper understanding about the system is required for achieving enhanced power output and high energy storage. The effects of sulfur doping on the electrochemical properties of GNS are studied for their use as an anode material in lithium-ion batteries. Sulfur doping in GNS contributes to the high specific capacity by providing more lithium storage sites due to Faradaic reactions. In addition, superior rate performance of sulfur-doped GNS (S-GNS) is achieved through the improved electrical conductivity of S-GNS (1743 S m(-1)), which is two orders of magnitude higher than that of GNS (32 S m(-1)). In addition, good cyclic stability of S-GNS is maintained even after 500 cycles at a high current density of 1488 mA g(-1) (4 C). (C) 2014 Elsevier B.V. All rights reserved.
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Collections - College of Natural Sciences > Department of Chemistry > 1. Journal Articles
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