Indian Institute of Technology Kharagpur
Jeevanjyoti Chakraborty is an Assistant Professor in the Mechanical Engineering Department of IIT Kharagpur. He holds a PhD from IIT Kharagpur and has held postdoctoral positions in applied mathematics at the University of Oxford and the University of Birmingham. He had a three-month stint as DST-INSPIRE Faculty at IISc Bangalore before joining IIT Kharagpur. His research interests span across fluid and solid mechanics together with electrochemical effects. He is especially interested in the mathematical modelling of energy storage materials, fluid flows through deformable confinements, and certain mechanical aspects of biological cell growth. His PhD work (on micro-scale flows) was adjudged as one of the five best across all engineering disciplines by the INAE (2014). He received the Faculty Excellence Award at IIT Kharagpur (2017). He was selected as an Associate of the Indian Academy of Sciences in 2017.
SESSION 2D: Inaugural lectures by Fellows/Associates
R K Srivastava, BHU, Varanasi
Diffusion, growth, and elasticity in batteries – A mathematical modelling perspective
Lithium-ion batteries are widely used in almost all portable electronic devices and most recently in electric vehicles. However, they can become commercially competitive only with much higher energy capacity – something which can be achieved with the use of electrode materials like silicon. But silicon poses a major technological difficulty because it undergoes huge volumetric growth when infused with lithium during charging. In this talk, the speaker will describe a modelling framework to understand the fundamentals of such diffusion-induced growth, and how such a framework helps in investigating possibilities of buckling as a mechanical failure together with ways to mitigate large axial deformations. The speaker will also discuss some of the immediate challenges of delving deeper into smaller length scales on one hand and upscaling the framework to the length scale of the whole battery on the other.