Patents by Inventor Shuvodeep Bhattacharjya

Shuvodeep Bhattacharjya 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).

  • Development of fast charge profiles for lithium-ion batteries
    Patent number: 11901759
    Abstract: A method of developing a charging profile for charging a lithium-ion battery. A first phase of charging is at a constant current level, with the constant current level selected on the basis of battery resistance during charging and differential voltage (dV/dQ) analysis. A switch point is selected on the basis of a state of charge (SOC) of the battery when dV/DQ values increase. Next is an increasing voltage charging phase, with the voltage rate selected on the basis of charge acceptance and charge time.
    Type: Grant
    Filed: July 16, 2021
    Date of Patent: February 13, 2024
    Assignee: Southwest Research Institute
    Inventors: Bapiraju Surampudi, Shuvodeep Bhattacharjya, Kevin Jones
  • Development of Fast Charge Profiles for Lithium-Ion Batteries
    Publication number: 20230015318
    Abstract: A method of developing a charging profile for charging a lithium-ion battery. A first phase of charging is at a constant current level, with the constant current level selected on the basis of battery resistance during charging and differential voltage (dV/dQ) analysis. A switch point is selected on the basis of a state of charge (SOC) of the battery when dV/DQ values increase. Next is an increasing voltage charging phase, with the voltage rate selected on the basis of charge acceptance and charge time.
    Type: Application
    Filed: July 16, 2021
    Publication date: January 19, 2023
    Inventors: Bapiraju Surampudi, Shuvodeep Bhattacharjya, Kevin Jones