IITKGP

Sreeraj Puravankara

Ph.D., Westphalia-Wilhelms University Muenster, NRW, Germany

Associate Professor

Energy Science and Engineering

+91-3222-260801

sreeraj@iitkgp.ac.in

Jute-based Hard Carbon as Na-ion battery anode, https://doi.org/10.1021/acs.langmuir.2c02575 | Elucidation of structure-property relation in Na-ion battery cathode (2023), https://doi.org/10.1007/s10008-023-05466-1 | Recent publication in J. Electrochem. Soc. (2023), DOI 10.1149/1945-7111/acc211 |

Responsibilities

  • Program Officer, NSO

Research Areas

The world is striving for clean and efficient forms of energy due to various factors like – increase in global energy demand, limited fossil-fuel resources and global warming. The commercialization has evolved through portable batteries for laptops, mobile phones, working tools to hybrid electric vehicles, plug-in hybrids and complete electric vehicles. Li-ion batteries has to be the energy storage technology when it comes to mobile applications.
Scarcity of lithium resource and the increased demand for it is initiating research in alternate battery technologies. Na-ion batteries are gaining research momentum due to their much better abundance in the Earth’s crust in comparison to lithium.
Regardless of the application, the discovery and optimization of high performance materials are critical to future breakthroughs for next-generation rechargeable batteries. For this, new classes of compounds should be explored and electrochemically characterized for gaining a better understanding of functional materials for battery research. This would be the focus of my research group in the coming future.
 
  • Optimizing ultramicroporous hard carbon spheres in carbonate ester based electrolytes for enhanced sodium storage in half /full cell sodium ion batteries Nagmani N., Kumar A. , Puravankara S. By Battery Energy 1 0220007-0220018 (2022)
  • On controlling the P2-O2 phase transition by optimal Ti-substitution on Ni-site in P2-type Na0.67Ni0.33Mn0.67O2 (NNMO) cathode for Na-ion batteries Puravankara S., Pahari D. By Journal of Power Sources 455 227957-227964 (2020)
  • Parameter identification and co-estimation of state-of-charge of Li-ion battery in real-time on Internet-of-Things platform Mondal A., Routray A. , Puravankara S. By Journal of Energy Storage 51 104370-104381 (2022)
  • Insights into the Plateau Capacity Dependence on the Rate Performance and Cycling Stability of a Superior Hard Carbon Microsphere Anode for Sodium-Ion Batteries Nagmani .., Puravankara S. By ACS Applied Energy Materials 3 10045-10052 (2020)
  • Insights into the diverse precursor-based micro-spherical hard carbons as anode materials for sodium ion and potassium ion batteries Nagmani N., Tyagi A. , Puravankara S. By Materials Advances 3 810-836 (2022)
  • Greener, Safer, and Sustainable Batteries: An Insight into Aqueous Electrolytes for Sodium-Ion Batteries Pahari D., Puravankara S. By ACS Sustainable Chemistry & Engineering 8 10613-10625 (2020)
  • Anodic Decomposition of Trimethylboroxine as Additive for High voltage Li-ion batteries, , J. Electrochem. Soc., 161(14), A2255-A2261 (2014) A. Freiberg, M. Metzger, D. Haering, S. Bretzke, P. Sreeraj, T. Nilges, C. Stinner, C. Marino, H. A. Gasteiger By J. Electrochem. Soc., 161(14) A2255-A2261 (2014)
  • 6. Li ion diffusion in the anode material Li12Si7: Ultrafast Quasi-1D diffusion and two distinct fast 3D jump processes separately revealed by 7Li NMR relaxometry A. Kuhn, P. Sreeraj, R. Pöttgen, H.-D. Wiemhöfer, M. Wilkening, P. Heitjans By J. Am. Chem. Soc 133 11018-11021 (2011)
  • 8. Li-NMR Spectroscopy on Crystalline Li12Si7: Experimental Evidence for the Aromaticity of the Planar Cyclopentadienyl-Analogous Si56-Rings A. Kuhn, P. Sreeraj, R. Pöttgen, H.-D. Wiemhöfer, M. Wilkening, P. Heitjans By Angew. Chem .Intl. Ed 50 12099-12102 (2011)

Principal Investigator

  • Exploratory synthesis of Hard Carbon anode and identified cathode (TMO) and optimize in half-cell and full cells in coin cell, cylindrical and pouch formats for sodium ion batteries

Ph. D. Students

Ananya Kumar

Area of Research: Na-ion battery electrodes

Arpita Mondal

Area of Research: Diagnostics and Prognostics of Battery Systems

Ashwani Tyagi

Area of Research: Alkali Metal batteries

Billa Rajashekar

Area of Research: Sodium ion battery

Dhrubajyoti Das

Area of Research: Hybrid systems

Jaya Yadav

Area of Research: Electrochemistry of intermetallics

Mayukh Chakravarty

Area of Research: Nanomaterials and supercapacitors

Nagmani

Area of Research: Electrochemical energy storage

Pathak Rajkumar Babunar

Area of Research: Sodium-ion Battery

Prakhar Verma

Area of Research: Computational and experimental study on energy materials

Sanchita Manna

Area of Research: Electrochemical Energy Storage

Sreshtha Ganguly

Area of Research: Electrochemical energy storage