Investigations of the redox mechanism of poly(5-amino-2-methyl-l,4-naphthoquinone) (PAMNQ) by in situ FTIR, EQCM and Electrochemical Impedance.

摘要

Recently, a novel conducting polymer, poly(5-amino-l,4-naphthoquinone) (PANQ) has been developed in our group [1]. In organic electrolyte, the; quinone / hydroquinone redox couple is reversible and very stable in the domain -1.25 / -0.20 V vs Ag/AgCl. The polymer exchanges cations for the charge-compensation process. In LiClCVacetonitrile electrolyte, lithium ions can be inserted and expelled reversibly. PANQ was then studied as an electrode material for lithium-ion batteries [2], The p-doping of the polymer chain occurs in the positive potential domain but it is not reversible and not quite stable in organic medium [3].