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In Situ Surface Coating of Squaric Acid with Conductive Polyaniline for a High-Capacity and Sustainable Lithium Battery Anode

Authors
  • GHOSH, A
  • MITRA, S
Publication Date
Dec 03, 2018
Source
DSpace at IIT Bombay
Keywords
License
Unknown
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Abstract

Squaric acid (SA) has been investigated as a readily available organic anode material in rechargeable lithium batteries. To overcome both conductivity and dissolution problems related to organic compounds, SA was conformally coated with conductive polyaniline through a facile in situ chemical polymerization route. Polyaniline-coated SA exhibits a stable high capacity of 394 mAhg(-1) after 100 cycles at 100 mAg(-1) in lithium batteries. At 1 Ag-1 current density, polyaniline-coated SA (PANI-SA) shows long cycle life over 1000 cycles with 96.9% retention of initial reversible capacity. The reversible Li+ storage property of SA is revealed through ex situ NMR characterization.

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