Microporous carbon derived from polyaniline base as anode material for lithium ion secondary battery

Journal Article · Mon Aug 15 00:00:00 EDT 2011 · Materials Research Bulletin

DOI:https://doi.org/10.1016/J.MATERRESBULL.2011.03.032· OSTI ID:22212204

Xiang, Xiaoxia ^[1]; Liu, Enhui ^[1]; Huang, Zhengzheng; Shen, Haijie; Tian, Yingying; Xiao, Chengyi; Yang, Jingjing; Mao, Zhaohui ^[1]

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1. Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Hunan 411105 (China)

Highlights: {yields} Nitrogen-containing microporous carbon was prepared from polyaniline base by K{sub 2}CO{sub 3} activation, and used as anode material for lithium ion secondary battery. {yields} K{sub 2}CO{sub 3} activation promotes the formation of amorphous and microporous structure. {yields} High nitrogen content, and large surface area with micropores lead to strong intercalation between carbon and lithium ion, and thus improve the lithium storage capacity. -- Abstract: Microporous carbon with large surface area was prepared from polyaniline base using K{sub 2}CO{sub 3} as an activating agent. The physicochemical properties of the carbon were characterized by scanning electron microscope, X-ray diffraction, Brunauer-Emmett-Teller, elemental analyses and X-ray photoelectron spectroscopy measurement. The electrochemical properties of the microporous carbon as anode material in lithium ion secondary battery were evaluated. The first discharge capacity of the microporous carbon was 1108 mAh g{sup -1}, whose first charge capacity was 624 mAh g{sup -1}, with a coulombic efficiency of 56.3%. After 20 cycling tests, the microporous carbon retains a reversible capacity of 603 mAh g{sup -1} at a current density of 100 mA g{sup -1}. These results clearly demonstrated the potential role of microporous carbon as anode for high capacity lithium ion secondary battery.

• OSTI ID: 22212204
• Journal Information: Materials Research Bulletin, Vol. 46, Issue 8; Other Information: Copyright (c) 2011 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CARBON
CURRENT DENSITY
EFFICIENCY
ELECTRIC BATTERIES
LITHIUM IONS
POLYMERS
POTASSIUM CARBONATES
SCANNING ELECTRON MICROSCOPY
SURFACE AREA
X-RAY PHOTOELECTRON SPECTROSCOPY