Electrochemical properties of lithium polymer batteries with doped polyaniline as cathode material
Artikel i vetenskaplig tidskrift, 2012

Polyaniline (PAN!) was doped with different lithium salts such as LiPFG and LiClO4 and evaluated as cathode-active material for application in room-temperature lithium batteries. The doped PANT was characterized by FTIR and XPS measurements. In the FTIR spectra, the characteristic peaks of PANT are shifted to lower bands as a consequence of doping, and it is more shifted in the case of PANI doped with LiPFG. The cathodes prepared using PANT doped with LiPF6 and LiClO4 delivered initial discharge capacities of 125 mAh g(-1) and 112 mAh g(-1) and stable reversible capacities of 114 mAh g(-1) and 81 mAh g(-1), respectively, after 10 charge-discharge cycles. The cells were also tested using polymer electrolyte, which delivered highest discharge capacities of 142.6 mAh g(-1) and 140 mAh g(-1) and stable reversible capacities of 117 mAh g(-1) and 122 mAh g(-1) for PANT-LiPF6 and PANI-LiClO4, respectively, after 10 cycles. The cathode prepared with LiPFG doped PANT shows better cycling performance and stability as compared to the cathode prepared with LiClO4 doped PANT using both liquid and polymer electrolytes.

films

Composites

Electrochemical properties

Energy storage

Polymer

secondary battery

electrode

Författare

J. Manuel

Gyeongsang National University

Jae-Kwang Kim

Chalmers, Teknisk fysik, Kondenserade materiens fysik

Aleksandar Matic

Chalmers, Teknisk fysik, Kondenserade materiens fysik

Per Jacobsson

Chalmers, Teknisk fysik, Kondenserade materiens fysik

G. S. Chauhan

Himachal Pradesh University

J. K. Ha

Gyeongsang National University

K. K. Cho

Gyeongsang National University

J. H. Ahn

Gyeongsang National University

Materials Research Bulletin

0025-5408 (ISSN)

Vol. 47 10 2815-2818

Drivkrafter

Hållbar utveckling

Ämneskategorier

Fysik

Styrkeområden

Energi

Materialvetenskap

DOI

10.1016/j.materresbull.2012.04.053

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2017-10-07