Patents by Inventor Sonya G. Zanardelli

Sonya G. Zanardelli 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).

  • Technique for rapid battery capacity testing
    Patent number: 8854003
    Abstract: A method of rapidly testing the discharge capacity of a battery comprises discharging the battery at a first discharge rate until a first cutoff potential is reached, relaxing the battery during a first period, discharging the battery at a lower discharge rate until a second cutoff potential is reached and relaxing the battery during a second, longer period. The process is repeated with successively lower discharge rates and successively longer relaxation periods until the battery is substantially exhausted. The cumulative value of all of the discharges is taken as a tested capacity of the battery. Optionally, cleanup charges can be sent to the battery during the relaxation periods and a low-frequency, low-amplitude current can be supplied throughout testing in order to shorten testing time.
    Type: Grant
    Filed: May 21, 2012
    Date of Patent: October 7, 2014
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Yi Ding, Sonya G. Zanardelli, John M. Zwally
  • Technique for Rapid Battery Capacity Testing
    Publication number: 20130307481
    Abstract: A method of rapidly testing the discharge capacity of a battery comprises discharging the battery at a first discharge rate until a first cutoff potential is reached, relaxing the battery during a first period, discharging the battery at a lower discharge rate until a second cutoff potential is reached and relaxing the battery during a second, longer period. The process is repeated with successively lower discharge rates and successively longer relaxation periods until the battery is substantially exhausted. The cumulative value of all of the discharges is taken as a tested capacity of the battery. Optionally, cleanup charges can be sent to the battery during the relaxation periods and a low-frequency, low-amplitude current can be supplied throughout testing in order to shorten testing time.
    Type: Application
    Filed: May 21, 2012
    Publication date: November 21, 2013
    Inventors: Yi Ding, Sonya G. Zanardelli, John M. Zwally