Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/xmlui/handle/123456789/18572
Title: Cardanol benzoxazine-Sulfur Copolymers for Li-S batteries: Symbiosis of Sustainability and Performance
Authors: SHUKLA, S
GHOSH, A
SEN, UK
ROY, PK
MITRA, S
LOCHAB, B
Keywords: Transition In-Situ
Elemental Sulfur
Inverse Vulcanization
Polymeric Materials
Raman-Spectroscopy
Cathode Materials
Thiol-Ene
Carbon
Composite
Lino3
Issue Date: 2016
Publisher: WILEY-V C H VERLAG GMBH
Citation: CHEMISTRYSELECT,1(3)594-600
Abstract: A sulfur-rich copolymer is synthesized via a sustainable, eco-friendly approach using two major wastes namely, elemental sulfur (industrial waste) and cardanol (agro waste) and its application as cathode active material in Li-S battery. The presence of chemically bound sulfur (90 wt%) utilising cardanol (10 wt%) derivative in the copolymer (S90) showed a reduction in the active material dissolution into the electrolyte. In addition, the organic sulfur units get dispersed into the insoluble/insulating Li-2 S-2/Li2S phase and thus found to suppress their irreversible dep-osition. Li-S battery based on S90/multi-walled carbon nano-tubes (MWCNT) (10 wt%) exhibited a reversible capacity of 1302 mAh g(-1) at 2nd cycle, maintaining a high reversible capacity of 928 mAh g(-1) after 70 cycles at a relatively constant coulombic efficiency over 99% at current rate of 200 mA g(-1). At 1000 mA g(-1) current rate, the composite cathode delivered a reversible capacity of 697 mAh g(-1) at 2nd cycle and retained 75% of its initial capacity even after 180 cycles.
URI: http://dx.doi.org/10.1002/slct.201600050
http://localhost:8080/xmlui/handle/123456789/18572
ISSN: 2365-6549
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