Energy Storage Laboratory
School of Energy Science and Engineering
Indian Institute of Technology Kharagpur
West Bengal-721302, India
Research Topics
Alkali-Ion Batteries
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Alkali-ion batteries, including sodium-ion (Na-ion) and potassium-ion (K-ion) technologies, are emerging as cost-effective and sustainable alternatives to traditional lithium-ion batteries. By using abundant and widely available alkali metals, these batteries address resource limitations and environmental concerns associated with lithium. With ongoing research, alkali-ion batteries are gaining traction for applications ranging from consumer electronics to electric vehicles.
Our group focuses on the development of new positive and negative electrode materials for alkali-ion batteries. We study their electrochemical properties and optimize their performance to enhance energy density, cycle life, and efficiency. Through these efforts, we aim to advance the potential of alkali-ion batteries as a viable, sustainable solution for the future of energy storage.
Multivalent-Ion Batteries
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Multivalent batteries, which use multivalent ions such as magnesium, calcium, or zinc as charge carriers, offer the potential for higher energy densities and improved safety compared to traditional lithium-ion systems. These batteries utilize more abundant and cost-effective materials, making them a promising solution for future energy storage needs.
Our group focuses on the development of new solid-state polymer electrolytes for multivalent ion batteries, particularly zinc-ion batteries. We study their electrochemical properties and work to optimize their performance, aiming to improve energy density, cycle life, and overall efficiency for a wide range of energy storage applications.
Multiscale Modelling
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Multiscale modeling of alkali-ion batteries is key to understanding and addressing issues like mass transfer, dendrite growth, and overall battery performance. At the macroscopic level, we develop models coupled with the P2D (Pseudo-2D) model to simulate ion transport, current distribution, and electrode material utilization in hard carbon anodes. This helps evaluate battery behavior, particularly during high C-rate charge and discharge cycles. At the microscale, the Phase Field Model simulates dendrite growth at the solid-liquid interface in Li metal and anode-free Li metal batteries, predicting the impact of nucleation, electrolyte concentration, SEI, and current collector roughness on dendrite formation. By integrating these models, we gain valuable insights to enhance battery stability, performance, and lifespan.
Associate Professor
School of Energy Science and Engineering
Indian Institute of Technology Kharagpur
India
Dr. Sreeraj Puravankara
Our group’s research focuses on electrochemical energy devices, including batteries and supercapacitors. We specialize in designing advanced materials for energy storage and conversion, aiming to enhance efficiency, performance, and sustainability in energy systems.
Latest News & Announcements
Congratulations to Prakhar Verma on his appointment as a Postdoctoral Fellow at Imperial College London! Wishing you great success in this exciting new chapter of your career.
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