Patents by Inventor Arijit GUHA

Arijit GUHA 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).

  • Method and system for improving state of health of rechargeable batteries
    Patent number: 11782096
    Abstract: The present disclosure provides a method and a system for improving the state of health (SoH) of rechargeable batteries. The method comprises receiving a plurality of battery parameters during charging of a battery and estimating model parameters of the battery using a mathematical model. The method also comprises comparing the estimated model parameters of the battery and the received battery parameters to determine degradation parameters of the battery in real-time, determining new charging current profile of the battery based on the degradation parameters of the battery, and applying the determined new charging current profile to the battery for improving the SoH of the battery.
    Type: Grant
    Filed: February 5, 2021
    Date of Patent: October 10, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Arijit Guha, Subramanian Swernath Brahmadathan, Krishnan S Hariharan, Piyush Tagade, Rajkumar Subhash Patil, Jeonghoon Jo
  • Methods and electronic devices for obtaining information on a battery pack
    Patent number: 11581585
    Abstract: Methods and electronic devices for estimating state of charge (SOC) of a battery pack. Various embodiments provide a model comprising an (electrical) equivalent circuit model, an electrochemical (thermal) model, and a (convective) thermal model. The model estimates parameters pertaining to each cell of the battery pack individually, and determines the variations in the values of the parameters among each of the cells of the battery pack. The parameters include capacity, temperature current, voltage, and SOC. The parameters are computed based on at current drawn by the battery pack, electrochemical parameters, thermal parameters, and cell internal and connection resistances of the individual cells. Various embodiments compute battery pack uptime, chargeable capacity of the battery pack and SOC of the battery pack, based on the values of the parameters.
    Type: Grant
    Filed: March 9, 2021
    Date of Patent: February 14, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Manohar Gottapu, Arijit Guha, Shashishekara Parampalli Adiga, Daehyun Kim, Taedong Goh, Youngho Ryu
  • METHODS AND ELECTRONIC DEVICES FOR OBTAINING INFORMATION ON A BATTERY PACK
    Publication number: 20210288353
    Abstract: Methods and electronic devices for estimating state of charge (SOC) of a battery pack. Various embodiments provide a model comprising an (electrical) equivalent circuit model, an electrochemical (thermal) model, and a (convective) thermal model. The model estimates parameters pertaining to each cell of the battery pack individually, and determines the variations in the values of the parameters among each of the cells of the battery pack. The parameters include capacity, temperature current, voltage, and SOC. The parameters are computed based on at current drawn by the battery pack, electrochemical parameters, thermal parameters, and cell internal and connection resistances of the individual cells. Various embodiments compute battery pack uptime, chargeable capacity of the battery pack and SOC of the battery pack, based on the values of the parameters.
    Type: Application
    Filed: March 9, 2021
    Publication date: September 16, 2021
    Inventors: Manohar GOTTAPU, Arijit GUHA, Shashishekara Parampalli ADIGA, Daehyun KIM, Taedong GOH, Youngho RYU
  • METHOD AND SYSTEM FOR IMPROVING STATE OF HEALTH OF RECHARGEABLE BATTERIES
    Publication number: 20210247460
    Abstract: The present disclosure provides a method and a system for improving the state of health (SoH) of rechargeable batteries. The method comprises receiving a plurality of battery parameters during charging of a battery and estimating model parameters of the battery using a mathematical model. The method also comprises comparing the estimated model parameters of the battery and the received battery parameters to determine degradation parameters of the battery in real-time, determining new charging current profile of the battery based on the degradation parameters of the battery, and applying the determined new charging current profile to the battery for improving the SoH of the battery.
    Type: Application
    Filed: February 5, 2021
    Publication date: August 12, 2021
    Inventors: Arijit GUHA, Subramanian Swernath BRAHMADATHAN, Krishnan S. HARIHARAN, Piyush TAGADE, Rajkumar Subhash PATIL, Jeonghoon JO