The present invention is directed towards an electrodepositable coating composition comprising (a) a fluoropolymer; (b) an electrochemically active material and/or electrically conductive agent; (c) a pH-dependent rheology modifier; and (d) an aqueous medium comprising water; wherein water is present in an amount of at least 45% by weight, based on the total weight of the electrodepositable coating composition. Also disclosed herein is a method of coating a substrate, as well as coated substrates and electrical storage devices.

Processes for depositing functionalized nanoparticles upon a non-conductive substrate are disclosed herein. The processes may include the step of aerosolizing one or more particles into suspension within a gas, each of the one or more particles comprising functionalized nanoparticles having an electric charge. The processes may include the step the step of attracting the one or more particles onto a non-conductive substrate by a static electric charge opposite of the electric charge, wherein at least portions of the non-conductive substrate are having the static electric charge. The processes may include the step of depositing the functionalized nanoparticles onto the non-conductive substrate

Processes for depositing functionalized nanoparticles upon a non-conductive substrate are disclosed herein. The processes may include the step of aerosolizing one or more particles into suspension within a gas, each of the one or more particles comprising functionalized nanoparticles having an electric charge. The processes may include the step the step of attracting the one or more particles onto a non-conductive substrate by a static electric charge opposite of the electric charge, wherein at least portions of the non-conductive substrate are having the static electric charge. The processes may include the step of depositing the functionalized nanoparticles onto the non-conductive substrate

A method of making a catalyst layer of a membrane electrode assembly (MEA) for a polymer electrolyte membrane fuel cell includes the step of preparing a porous buckypaper layer comprising at least one selected from the group consisting of carbon nanofibers and carbon nanotubes. Platinum group metal nanoparticles are deposited in a liquid solution on an outer surface of the buckypaper to create a platinum group metal nanoparticle buckypaper. A proton conducting electrolyte is deposited on the platinum group metal nanoparticles by electrophoretic deposition to create a proton-conducting layer on the an outer surface of the platinum nanoparticles. An additional proton-conducting layer is deposited by contacting the platinum group metal nanoparticle buckypaper with a liquid proton-conducting composition in a solvent. The platinum group metal nanoparticle buckypaper is dried to remove the solvent. A membrane electrode assembly for a polymer electrolyte membrane fuel cell is also disclosed.

A method of making a catalyst layer of a membrane electrode assembly (MEA) for a polymer electrolyte membrane fuel cell includes the step of preparing a porous buckypaper layer comprising at least one selected from the group consisting of carbon nanofibers and carbon nanotubes. Platinum group metal nanoparticles are deposited in a liquid solution on an outer surface of the buckypaper to create a platinum group metal nanoparticle buckypaper. A proton conducting electrolyte is deposited on the platinum group metal nanoparticles by electrophoretic deposition to create a proton-conducting layer on the an outer surface of the platinum nanoparticles. An additional proton-conducting layer is deposited by contacting the platinum group metal nanoparticle buckypaper with a liquid proton-conducting composition in a solvent. The platinum group metal nanoparticle buckypaper is dried to remove the solvent. A membrane electrode assembly for a polymer electrolyte membrane fuel cell is also disclosed.

The present invention provides a method for concurrent electrophoretic deposition (EPD) of a membrane-electrode assembly (MEA) comprising a first MEA electrode and a second MEA electrode. The method comprises electrophoretically depositing the first MEA electrode from a suspension comprising a first precursor on a first surface of an ion permeable membrane and electrophoretically depositing the second MEA electrode from a second suspension comprising a second precursor on a second surface of the ion permeable membrane, wherein the first precursor is physically separated from and ionically connected to the second precursor by the membrane.

The present invention provides a method for concurrent electrophoretic deposition (EPD) of a membrane-electrode assembly (MEA) comprising a first MEA electrode and a second MEA electrode. The method comprises electrophoretically depositing the first MEA electrode from a suspension comprising a first precursor on a first surface of an ion permeable membrane and electrophoretically depositing the second MEA electrode from a second suspension comprising a second precursor on a second surface of the ion permeable membrane, wherein the first precursor is physically separated from and ionically connected to the second precursor by the membrane.

A method for plating a work piece includes forming a work piece, where the work piece includes first and second segments that are electrically isolated. The first segment is connected in a first circuit and the second segment is connected in a second circuit. The first circuit may include a first power source and the second circuit may include a second power source. The work piece and the first and second segments may be disposed in a common solution, and current may be applied in the first circuit and the second circuit to create first and second metal surfaces. The first and second metal surfaces may be made from the same base metal. The first and second metal surfaces may be created simultaneously, with the work piece and the first and second segments disposed in a common solution.

A cationic electrodeposition paint composition comprising a cationic base-containing resin (A), a blocked polyisocyanate compound (B), and a modified imidazole (C) having a specific structure, wherein the cationic base-containing resin (A) is a cationic base-containing epoxy resin and/or a cationic base-containing acrylic resin.

A cationic electrodeposition paint composition comprising a cationic base-containing resin (A), a blocked polyisocyanate compound (B), and a modified imidazole (C) having a specific structure, wherein the cationic base-containing resin (A) is a cationic base-containing epoxy resin and/or a cationic base-containing acrylic resin.