Abstract
Morphological changes of a conductive polymer in an ionic liquid during charging and discharging.
Highlights
Understanding the charge storage mechanism of conductive polymers as hybrid battery-capacitor materials in ionic liquids by in situ atomic force microscopy and electrochemical quartz crystal microbalance studies†
We aim to clarify the fundamental functionality of these hybrid characteristics while studying the interaction between a conductive polymer and an ionic liquid by in situ atomic force microscopy and electrochemical quartz crystal microbalance
This study aims to investigate the anion doping/de-doping process of the conductive polymer PEDOT while performing charge/discharge cycles and evaluating its capacitive and faradaic behaviour by cyclic voltammetry (CV) coupled with electrochemical quartz crystal microbalance (EQCM) experiments
Summary
Understanding the charge storage mechanism of conductive polymers as hybrid battery-capacitor materials in ionic liquids by in situ atomic force microscopy and electrochemical quartz crystal microbalance studies†. High-performance energy storage devices such as lithium-ion batteries are characterised by having the highest practical speci c energies (80 to 175 W h kgÀ1) and powers (200 to 300 W kgÀ1) among state-of-the-art rechargeable batteries.[1] there are some major concerns about the safety and sustainability of lithium. These include ammability, difficult recycling and the limited availability of raw materials, which raise issues regarding the future viability of electric cars. These types of electrodes demonstrate battery-like (faradaic) behaviour due to the oxidation and reduction of the active electrode species while simultaneously showing capacitive (non-faradaic) behaviour by inserting anion species in a threedimensional electrode structure.[5]
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