US 9,809,896 B2
Self-assembly of coatings utilizing surface charge
Derek C. Johnson, Fort Collins, CO (US); and Amy L. Prieto, Fort Collins, CO (US)
Assigned to Colorado State University Research Foundation, Fort Collins, CO (US)
Filed by COLORADO STATE UNIVERSITY RESEARCH FOUNDATION, Fort Collins, CO (US)
Filed on Jan. 20, 2015, as Appl. No. 14/600,386.
Application 14/600,386 is a division of application No. 13/073,879, filed on Mar. 28, 2011.
Claims priority of provisional application 61/318,068, filed on Mar. 26, 2010.
Prior Publication US 2015/0299890 A1, Oct. 22, 2015
This patent is subject to a terminal disclaimer.
Int. Cl. C25D 13/02 (2006.01); H01M 4/04 (2006.01); H01M 4/1395 (2010.01); C23C 18/16 (2006.01); G01N 27/30 (2006.01); G01N 27/416 (2006.01); H01M 2/16 (2006.01); H01M 10/052 (2010.01); H01M 10/0562 (2010.01); G01N 31/16 (2006.01); C25D 3/58 (2006.01); H01M 4/36 (2006.01)
CPC C25D 13/02 (2013.01) [C23C 18/1683 (2013.01); G01N 27/302 (2013.01); G01N 27/4167 (2013.01); H01M 2/1673 (2013.01); H01M 4/045 (2013.01); H01M 4/1395 (2013.01); C25D 3/58 (2013.01); G01N 31/164 (2013.01); H01M 4/0452 (2013.01); H01M 4/366 (2013.01); H01M 10/052 (2013.01); H01M 10/0562 (2013.01); Y02E 60/122 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A method for producing an electrode having AlPO4 coating material thereon, comprising the steps of:
electrodepositing a Cu2Sb substrate onto a current collector;
preparing a solution of precursors of the AlPO4 coating material;
adjusting the pH of the solution to between the isoelectric pH of the substrate and the isoelectric pH of the coating material;
immersing the substrate in the solution for a time sufficient for self-assembly of the coating material onto the substrate;
whereby an electrically insulating and ionically conducting coating is formed on the substrate; and
increasing the thickness of the self-assembled AlPO4 on the Cu2Sb by electrophoretic deposition of additional AlPO4 onto the self-assembled AlPO4 at a positive voltage relative to open circuit potential.