Patents Assigned to TREADSTONE TECHNOLOGIES, INC.
  • Patent number: 10435782
    Abstract: Method for forming a metallic component surface to achieve lower electrical contact resistance. The method comprises modifying a surface chemical composition and creating a micro-textured surface structure of the metallic component that includes small peaks and/or pits. The small peaks and pits have a round or irregular cross-sectional shape with a diameter between 10 nm and 10 microns, a height/depth between 10 nm and 10 microns, and a distribution density between 0.4 million/cm2 and 5 billion cm2.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: October 8, 2019
    Assignee: TREADSTONE TECHNOLOGIES, INC.
    Inventors: Conghua Wang, Yong Tao, Lin Zhang, Gerald A. Gontarz
  • Patent number: 9765421
    Abstract: A method is described that can be used in electrodes for electrochemical devices and includes disposing a precious metal on a top surface of a corrosion-resistant metal substrate. The precious metal can be thermally sprayed onto the surface of the corrosion-resistant metal substrate to produce multiple metal splats. The thermal spraying can be based on a salt solution or on a metal particle suspension. A separate bonding process can be used after the metal splats are deposited to enhance the adhesion of the metal splats to the corrosion-resistant metal substrate. The surface area associated with the splats of the precious metal is less than the surface area associated with the top surface of the corrosion-resistant metal substrate. The thermal spraying rate can be controlled to achieve a desired ratio of the surface area of the metal splats to the surface area of the corrosion-resistant metal substrate.
    Type: Grant
    Filed: January 8, 2009
    Date of Patent: September 19, 2017
    Assignee: TREADSTONE TECHNOLOGIES, INC.
    Inventor: Conghua Wang
  • Patent number: 9567681
    Abstract: Methods for providing a metal surface structure and treatment process to prevent the corrosion (e.g., high electrochemical potential oxidization and hydrogen embrittlement) of a metallic component used in electrolyzer operational conditions. The oxide surface scale of a metal plate is used to prevent the corrosion, and electrical conductive materials such as e.g., precious metals or carbon are used to provide the surface electrical conductance of the metallic components. The methods advantageously produce, at a low cost, metal components for electrolyzers that need high electrical conductance and corrosion resistance for long term operation.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: February 14, 2017
    Assignee: TREADSTONE TECHNOLOGIES, INC.
    Inventor: Conghua Wang
  • Patent number: 9493883
    Abstract: Methods for coating a metal substrate or a metal alloy with electrically conductive titania-based material. The methods produce metal components for electrochemical devices that need high electrical conductance, corrosion resistance and electrode reaction activities for long term operation at a low cost.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: November 15, 2016
    Assignee: TREADSTONE TECHNOLOGIES, INC.
    Inventor: Conghua Wang
  • Patent number: 9062384
    Abstract: Methods for coating a metal substrate or a metal alloy with electrically conductive titania-based material. The methods produce metal components for electrochemical devices that need high electrical conductance, corrosion resistance and electrode reaction activities for long term operation at a low cost.
    Type: Grant
    Filed: February 25, 2013
    Date of Patent: June 23, 2015
    Assignee: TREADSTONE TECHNOLOGIES, INC.
    Inventor: Conghua Wang
  • Publication number: 20140242462
    Abstract: Methods for coating a metal substrate with electrically conductive dots or splats of active materials for use in battery applications that improve the corrosion resistant metallic component electrode activity, or electrical conductivity of those components at reduced or lower costs.
    Type: Application
    Filed: February 25, 2014
    Publication date: August 28, 2014
    Applicant: Treadstone Technologies, Inc.
    Inventor: Conghua WANG
  • Publication number: 20130230793
    Abstract: Methods for coating a metal substrate or a metal alloy with electrically conductive titania-based material. The methods produce metal components for electrochemical devices that need high electrical conductance, corrosion resistance and electrode reaction activities for long term operation at a low cost.
    Type: Application
    Filed: February 25, 2013
    Publication date: September 5, 2013
    Applicant: TREADSTONE TECHNOLOGIES, INC.
    Inventor: CONGHUA WANG
  • Publication number: 20110076587
    Abstract: A method to use a novel structured metal-ceramic composite powder to improve the surface electrical conductivity of corrosion resistant metal substrates by thermal spraying the structured powder onto a surface of a metallic substrate is disclosed. The structured powder has a metal core and is wholly or partially surrounded by an electrically conductive ceramic material such as a metal nitride material. The metal cores may have the ceramic material formed on them prior to a thermal spraying process performed in an inert atmosphere, or the thermal spraying may be performed in a reactive atmosphere such that the ceramic coating forms on the cores during the thermal spraying process and/or after deposition. The metal cores will bond conductive ceramic material onto the surface of the substrate through the thermal spray process.
    Type: Application
    Filed: September 28, 2010
    Publication date: March 31, 2011
    Applicant: TREADSTONE TECHNOLOGIES, INC.
    Inventors: CONGHUA WANG, LIN ZHANG, GERALD A. GONTARZ, JR.
  • Publication number: 20100285386
    Abstract: A separator plate for use in a fuel cell stack in a fuel cell device includes a porous core with a metal layer on either side of the porous core. The metal layer has through holes formed therein such as by perforation. The metal layers are contoured to provide flow field channels, and the porous layer may have channels formed therein that are parallel to the metal layers that can be used for cooling water. A monopolar fuel stack includes twin cell units that include a center separator plate, a pair of membrane electrode assemblies, one on each side of the center separator plate, and a pair of outer plates which may have through holes formed therein, one on each side of the membrane electrode assemblies opposite the center separator plate. The outer plates cover substantially an entire electrode to which they are adjacent.
    Type: Application
    Filed: May 10, 2010
    Publication date: November 11, 2010
    Applicant: TREADSTONE TECHNOLOGIES, INC.
    Inventor: Conghua Wang
  • Publication number: 20090176120
    Abstract: A method is described that can be used in electrodes for electrochemical devices and includes disposing a precious metal on a top surface of a corrosion-resistant metal substrate. The precious metal can be thermally sprayed onto the surface of the corrosion-resistant metal substrate to produce multiple metal splats. The thermal spraying can be based on a salt solution or on a metal particle suspension. A separate bonding process can be used after the metal splats are deposited to enhance the adhesion of the metal splats to the corrosion-resistant metal substrate. The surface area associated with the splats of the precious metal is less than the surface area associated with the top surface of the corrosion-resistant metal substrate. The thermal spraying rate can be controlled to achieve a desired ratio of the surface area of the metal splats to the surface area of the corrosion-resistant metal substrate.
    Type: Application
    Filed: January 8, 2009
    Publication date: July 9, 2009
    Applicant: TREADSTONE TECHNOLOGIES, INC.
    Inventor: Conghua Wang
  • Publication number: 20080190780
    Abstract: An apparatus and a method for generating hydrogen, the apparatus including a first electrode and a second electrode. The first electrode includes a catalytic material for promoting the formation of protons. The apparatus also includes a proton conductive electrolyte disposed between the first and second electrodes and a voltage source connected to the first electrode and to the second electrode. The voltage source is configured to provide a driving voltage having a base voltage and a pulsed voltage superposed on the base voltage to generate hydrogen. The apparatus has an input through which syngas or a hydrocarbon compound or both is introduced into the first electrode; and an output for discharging the generated hydrogen, the output being disposed opposite the input on an opposite side of the proton conductive electrolyte.
    Type: Application
    Filed: January 24, 2008
    Publication date: August 14, 2008
    Applicant: TREADSTONE TECHNOLOGIES, INC.
    Inventor: Conghua Wang