A polar1zable ion-conducting material

Abstract

The invention provides a polarizable ion-conducting material. The material contains mobile ions and a matrix formed of a polymer having ionic groups of a charge opposite to that of the mobile ions, wherein the material has a polarization of at least 0.2 mC / g, a capacitance of at least 0.1 mF / g, and a polarization retention time of at least 5 seconds. Also disclosed is a device containing such a polarizable ion-conducting material.

Description

Background technique

[0001] Polarizable devices have a wide range of applications, such as energy storage, data storage, and electrical switching. Among the commonly used polarizable devices are dielectric capacitors and double layer capacitors.

[0002] Dielectric capacitors have low capacitance, e.g. 0.1µF / cm 2 to 1μF / cm 2 . Thus, their applications are very limited. On the other hand, double-layer capacitors, which store charge in their two electrode layers, have a larger capacitance, say 0.5 μF / cm 2 to 5.0μF / cm 2 . However, double layer capacitors are expensive and not easy to scale up.

[0003] There is a need to develop scalable and inexpensive polarizable ionically conductive materials. Contents of the invention

[0004] An inexpensive and scalable polarizable ionically conductive material is disclosed herein.

[0005] The polarizable ionically conductive material includes mobile ions and a matrix formed from a polymer having ionic groups of opposite charge t...

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