Preparation and application of TEMPO-based di-radical organic electrode with ionic liquid-based polymer electrolyte
Journal article, 2012

In this study we report the synthesis and use of new organic materials, TEMPO di-radical [1,3-bis(4-(2,2,6,6,-tetramethyl-1-oxyl-4-piperidoxyl)butyl) imidazolium trifluorosulfonate]. Two cells were prepared with Li metal anode and the TEMPO di-radical based cathode with a microporous polymer electrolyte [1-butyl-3-methyl imidazolium bis(trifluoromethane sulfonyl) imide (BMImTFSI) in 0.5 M LiTFSI, and in 1 M LiPF6 in ethylene carbonate/dimethyl carbonate (EC/DMC)] hosted in electrospun poly(vinylidenefluoride-co-hexafluoropropylene) (PVdF-HFP) membrane. The nature of the solvent was not found to affect the basic redox reaction behavior of TEMPO. The anodic and cathodic peaks were obtained at almost the same position and with some difference in the separation of peaks. The presence of BMImTFSI significantly affects the electrochemical performance of the battery as the cell having this RTIL exhibited far better electrochemical performance with 100% utilization of the active material and reasonably good cycling performance up to 200 cycles. We believe that this composite cell will contribute to organic green rechargeable batteries, although the cell is not fully organic composite.

Author

Jae-Kwang Kim

Chalmers, Applied Physics, Condensed Matter Physics

Aleksandar Matic

Chalmers, Applied Physics, Condensed Matter Physics

J. H. Ahn

Gyeongsang National University

Per Jacobsson

Chalmers, Applied Physics, Condensed Matter Physics

CE. Song

Sungkyunkwan University

RSC Advances

2046-2069 (ISSN)

Vol. 2 27 10394-10399

Driving Forces

Sustainable development

Areas of Advance

Energy

Materials Science

Subject Categories

Chemical Sciences

DOI

10.1039/c2ra20795h

More information

Created

10/8/2017