Patents by Inventor Arumugam Sivashanmugam

Arumugam Sivashanmugam 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).

  • Process for the preparation of high voltage nano composite cathode (4.9vV) for lithium ion batteries
    Patent number: 9985277
    Abstract: An olivine structured nano-composite LiMxMn1?xPO4/C was synthesized by a sol-gel assisted high energy ball mill method and the synthesis method does not require any inert atmosphere. Electrochemical cycling studies were carried out between 3.0-4.6V using 1M LiPF6 in 1:1 EC/DEC as electrolyte. The charge/discharge cycling studies of the nano-composite exhibit an average discharge capacity of 158 mAh/g at 0.1 C rate over the investigated 50 cycles.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: May 29, 2018
    Assignee: Council of Scientific & Industrial Research
    Inventors: Sukumaran Gopukumar, Chandrasekaran Nithya, Ramasamy Thirunakaran, Arumugam Sivashanmugam
  • Cathode material and lithium ion battery therefrom
    Patent number: 9882206
    Abstract: A new high performing lithium ion cell having new carbon based anode and new dual doped layered cathode materials. The anode is a self standing carbon fibrous material and the cathode is a dual doped Lithium cobalt oxide of general formula LiMxNyCo1?x?yO2 (0.01?x, y?0.2) wherein M is a divalent alkaline earth metal cation and N is a divalent transition metal cation. Lithium ion cells of 2016 coin cells were assembled using the above materials deliver specific capacity of 60-85 mAhg?1 at 1 C rate and exhibit excellent cycling stability of 90-95% even after 200 cycles when cycled between 2.9-4.1V.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: January 30, 2018
    Assignee: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
    Inventors: Sukumaran Gopukumar, Chandrasekaran Nithya, Ramasamy Thirunakaran, Arumugam Sivashanmugam, Sundeep Kumar Dhawan, Rakesh Behari Mathur, Priyanka Heda Maheshwari
  • CATHODE MATERIAL AND LITHIUM ION BATTERY THEREFROM
    Publication number: 20140087257
    Abstract: A new high performing lithium ion cell having new carbon based anode and new dual doped layered cathode materials. The anode is a self standing carbon fibrous material and the cathode is a dual doped Lithium cobalt oxide of general formula LiMxNyCo1-x-yO2 (0.01?x, y?0.2) wherein M is a divalent alkaline earth metal cation and N is a divalent transition metal cation. Lithium ion cells of 2016 coin cells were assembled using the above materials deliver specific capacity of 60-85 mAhg?1 at 1 C rate and exhibit excellent cycling stability of 90-95% even after 200 cycles when cycled between 2.9-4.1V.
    Type: Application
    Filed: March 29, 2011
    Publication date: March 27, 2014
    Applicant: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
    Inventors: Sukumaran Gopukumar, Chandrasekaran Nithya, Ramasamy Thirunakaran, Arumugam Sivashanmugam, Sundeep Kumar Dhawan, Rakesh Behari Mathur, Priyanka Heda Maheshwari
  • PROCESS FOR THE PREPARATION OF HIGH VOLTAGE NANO COMPOSITE CATHODE (4.9vV) FOR LITHIUM ION BATTERIES
    Publication number: 20130277619
    Abstract: An olivine structured nano-composite LiMxMn1?xPO4/C was synthesized by a sol-gel assisted high energy ball mill method and the synthesis method does not require any inert atmosphere. Electrochemical cycling studies were carried out between 3.0-4.6V using 1M LiPF6 in 1:1 EC/DEC as electrolyte. The charge/discharge cycling studies of the nano-composite exhibit an average discharge capacity of 158 mAh/g at 0.1 C rate over the investigated 50 cycles.
    Type: Application
    Filed: March 30, 2011
    Publication date: October 24, 2013
    Applicant: Council of Scientific & Industrial Research
    Inventors: Sukumaran Gopukumar, Chandrasekaran Nithya, Ramasamy Thirunakaran, Arumugam Sivashanmugam