Solid polymer electrolyte, polycation, layer-by-layer assembly, ethylene glycol, ionic conduction, mechanical stability, chemical cross-linking, lithium salts, electrolyte thickness
Microbatteries or micro-fuel cells for small-scale power delivery, electrochemical sensors (such as biopassivating membranes for electrical sensor protection in vivo)
Ionic mobility in crystallization of polyethylene oxide films
This invention is a solid polymer electrolyte created using the layer-by-layer assembly process, employing electrostatic, hydrogen-bonding, or other nonspecific interactions. These solid electrolyte systems contain significant ethylene glycol or ethylene oxide content, which is added as a part of the constituent polymers. The solid electrolyte is assembled on a substrate by alternating exposure to dilute solutions of polycation and polyanion or hydrogen-bonding donor and hydrogen-bonding acceptor. Ethylene glycol content can be added by grafting to polycations or polyanions using amidation chemistry with readily available amine or carboxylic acid-terminated polyethylene glycols. This method provides a flexible way of manipulating the mechanical properties of the matrix and the ion mobility in the matrix.
U.S. Patent Number 7,799,467, filed on September 21, 2010
D. DeLongChamp and P. Hammond. Layer-by-Layer Assembly of PEDOT/Polyaniline Electrochromic Devices. Adv. Mat., 13(19). 1455-1459 (2001). DOI: 10.1002/1521-4095(200110)13:19<1455::AID-ADMA1455>3.0.CO;2-7
Last revised: April 29, 2013
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