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.
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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)
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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)
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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)
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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)
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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)
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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)
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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)
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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)
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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