Patents by Inventor Jeng-Chih Weng

Jeng-Chih Weng has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Fabrication of carbon nanotubes reinforced polymer composite bipolar plates for fuel cell
    Patent number: 7883650
    Abstract: A composite bipolar plate for a polymer electrolyte membrane fuel cell (PEMFC) is prepared as follows: a) compounding vinyl ester and graphite powder to form bulk molding compound (BMC) material, the graphite powder content ranging from 60 wt % to 95 wt % based on the total weight of the graphite powder and vinyl ester, wherein carbon nanotubes together with a polyether amine dispersant or modified carbon nanotubes 0.05-10 wt %, based on the weight of the vinyl ester resin, are added during the compounding; b) molding the BMC material from step a) to form a bipolar plates having a desired shaped at 80-200° C. and 500-4000 psi.
    Type: Grant
    Filed: October 20, 2008
    Date of Patent: February 8, 2011
    Assignee: National Tsing Hua University
    Inventors: Chen-Chi Martin Ma, Chih-Hung Hung, Shu-Hang Liao, Chuan-Yu Yen, Jeng-Chih Weng, Yu-Feng Lin
  • Fabrication of polymer grafted carbon nanotubes/polypropylene composite bipolar plates for fuel cell
    Publication number: 20100283174
    Abstract: A composite bipolar plate for a proton exchange membrane fuel cell (PEMFC) is prepared as follows: a) melt compounding a polypropylene resin and graphite powder to form a melt compounding material, the graphite powder content ranging from 50 wt % to 95 wt % based on the total weight of the melt compounding material and the polypropylene resin being a homopolymer of propylene or a random copolymer of propylene and ethylene, butylenes or hexalene, wherein 0.01-15 wt % of polymer-grafted carbon nanotubes by an acyl chlorination-amidization reaction, based on the weight of the polypropylene resin, are added during the compounding; and b) molding the melt compounding material from step a) to form a bipolar plates having a desired shaped at 100-250° C. and 500-4000 psi.
    Type: Application
    Filed: November 5, 2009
    Publication date: November 11, 2010
    Applicant: YUAN ZE UNIVERSITY
    Inventors: Chen-Chi Martin Ma, Min-Chien Hsiao, Shu-Hang Liao, Jeng-Chih Weng, Shuo-Jen Lee, Ay Su
  • Fabrication of carbon nanotubes reinforced polymer composite bipolar plates for fuel cell
    Publication number: 20100059718
    Abstract: A composite bipolar plate for a polymer electrolyte membrane fuel cell (PEMFC) is prepared as follows: a) compounding vinyl ester and graphite powder to form bulk molding compound (BMC) material, the graphite powder content ranging from 60 wt % to 95 wt % based on the total weight of the graphite powder and vinyl ester, wherein carbon nanotubes together with a polyether amine dispersant or modified carbon nanotubes 0.05-10 wt %, based on the weight of the vinyl ester resin, are added during the compounding; b) molding the BMC material from step a) to form a bipolar plates having a desired shaped at 80-200° C. and 500-4000 psi.
    Type: Application
    Filed: October 20, 2008
    Publication date: March 11, 2010
    Applicant: National Tsing Hua University
    Inventors: Chen-Chi Martin Ma, Chih-Hung Hung, Shu-Hang Liao, Chuan-Yu Yen, Jeng-Chih Weng, Yu-Feng Lin