Patents by Inventor Rongrong Chen

Rongrong Chen 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).

  • Publication number: 20030157405
    Abstract: An electrode comprising a noble-metal free grid comprising lead, wherein the grid has an essentially PbO free PbO2 coating covering all, or essentially all of the surface of the grid. Also described is a method of forming an electrode, comprising applying an essentially PbO free PbO2 coating to a noble-metal free grid comprising lead, wherein the coating covers all, or essentially all of the surface of the grid.
    Type: Application
    Filed: February 21, 2002
    Publication date: August 21, 2003
    Inventors: Rongrong Chen, John Lewis Ayres
  • Publication number: 20020177038
    Abstract: A grid plate for high power lead acid battery having a plate (14) covered with a conductive polymeric matrix (10) of preferably polyaniline and its derivatives, which is then coated with nanoscale particles of active material (14) such as lead sulfate and basic lead sulfate complexes.
    Type: Application
    Filed: May 24, 2001
    Publication date: November 28, 2002
    Inventors: Rongrong Chen, Wellington Y. Kwok
  • Publication number: 20020124388
    Abstract: A plate making process for a lead acid battery which eliminates the need for steaming and curing steps to produce the active material. Mixing, reacting and crystallizing occur in a closed reactor under controlled temperature and mixing conditions to produce a paste having the desired crystal morphology. A polymer is then added to the paste to bind the crystals together and to produce desired rheological properties in the paste. The paste having the polymer addition is then pasted onto a grid where the paste is dried to form a battery plate of the lead acid battery. The process is applicable for both the positive and negative plates of a lead acid battery.
    Type: Application
    Filed: January 11, 2001
    Publication date: September 12, 2002
    Inventors: Rongrong Chen, Shay Harrison, Wellington Y. Kwok