Long-lived conjugated polymer electrochemical devices incorporating ionic liquids
AssigneeSanta Fe Science and Technology, Inc.
InventorsWen Lu, Benjamin R. Mattes, Andrei G. Fadeev
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Abstract
The present invention relates to the electrochemistry of conjugated polymers in ionic liquids and the development and fabrication of long-lived, highly stable conjugated polymer electrochemical devices by using ionic liquids as electrolytes. More specially, the invention relates to the use of ionic liquids as electrolytes for the fabrication of long-lived, highly stable electrochemical actuators, electrochemical capacitors and electrochemical batteries having conjugated polymers as active electrodes as well as for the fabrication of long-lived, highly stable electrochromic devices with polyaniline and polythiophene as coloration materials.
Claims48
A method for inducing a response in a long-lived electrochemical device which comprises the steps of;
- contacting a conjugated polymer working electrode and a counter electrode with an ionic liquid having an anion and a cation;
- and applying a voltage between the working electrode and the counter electrode, whereby the response is induced in the long-lived electrochemical device.
A long-lived electrochemical device comprising in combination:
- (a) a conjugated polymer working electrode;
- (b) a counter electrode;
- (c) an ionic liquid having an anion and a cation in contact with both said working electrode and said counter electrode;
- and
- (d) an electronic power supply for applying a voltage between said working electrode and said counter electrode, whereby a response is induced in said electrochemical device.
Dependencies are inferred from the claim text.