Journal
ELECTROCHIMICA ACTA
Volume 255, Issue -, Pages 145-152Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2017.09.017
Keywords
Organic electrode; Lithium-ion batteries; Poly-Pillar[5]quinone; Structural characterizations; Initial discharge capacity
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Funding
- National Natural Science Foundation of China [51473039]
- Ministry of Science and Technology of China [2016YFA0200700]
- CAS-TWAS
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In the recent years, organic electrode materials have attracted tremendous attention and becoming promising electrode candidates for the green and sustainable lithium-ion batteries. A novel hypercrosslinked Poly-Pillar[5]quinone (Poly-P5Q) polymer was prepared and applied as electrode material in Li-ion batteries. Poly-P5Q is the oxidized form of Poly-Dimethoxypillar[5]arene (Poly-DMP5A) which was obtained from the condensation of dimethoxypillar[5]arene and formaldehyde dimethyl acetal using Friedel-Crafts reaction. The prepared materials were characterized by C-13 solid state NMR, FTIR, SEM, EDX and TGA analysis. The Poly-P5Q cathode showed an initial discharge-capacity up to 105 mAh g(-1) whereas it retained 82.3% of its initial discharge capacity after 100 charge-discharge cycles at a current speed of 100 mA g(-1) in the potential window between 1.75 to 3.25 V. In future, research in this direction will provide great insight for the development of novel polymers from various small organic molecules as a stable and high performance electrode materials for green lithium-ion batteries. (C) 2017 Elsevier Ltd. All rights reserved.
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