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Home  »  Jyothilakshmi S

Jyothilakshmi S

Academic background:

I completed my Bachelors and Masters degree in Chemistry from Sree Narayana College, University of Kerala. As a part of my M.Sc. program, I have worked on synthesis, fabrication, and performance studies of electrode materials for supercapacitors under the guidance of Dr. Rakhi R B at CSIR-NIIST, Thiruvananthapuram. The key focus of my thesis was on the synthesis of molybdenum selenide and analyze its electrochemical performance in supercapacitors. The findings of my research instilled in me a great interest in exploring the fabrication and application of energy storage devices which led me to join Ph.D. program at IISER Tirupati. I am currently working on the “Synthesis of Electrode Materials for Charge Storage Applications” under the guidance of Dr. Vanchiappan Aravindan.

Research interest:

Electrochemical energy storage is an ideal solution for problems like the depletion of fossil fuels and certain climatic catastrophes, which can play a crucial role in energy conversion and storage, pollution control, and monitoring. Metal-ion-based energy storage systems have sparked particular interest among energy storage devices due to their efficiency, high energy density, quick charging, longer life, and low maintenance. In light of the knowledge and experience gained from my previous research, I am interested in the synthesis of functional nanomaterials using the mechanochemical process for the fabrication of high-performance electrode material for faradaic and non-faradaic charge storage systems, which include rechargeable batteries (Li-ion, Na-ion & K-ion batteries) and supercapacitors. Green and scalable synthesis of nanomaterials for the fabrication of high-performance electrodes for metal-ion-based charge storage systems (e.g., LIB, NIB, LIC, NIC, etc.) that can tolerate high currents and offer high energy and power density with long durability is the prime objective of my research. Also, systems should exhibit much more safety features than state-of-the-art systems with wide temperature operation (-20 to 50 °C) capability to sustain various environmental conditions.
I am also interested in recycling and reusing spent lithium-ion batteries. Graphite can be recovered from the spent LIBs by using environmentally friendly solvents and could be directly reused in NIBs. The separator can also be taken out from LIBs and can be used as an alternative for the fresh separator.

Advisor information:

Dr. Vanchiappan Aravindan is an Assistant Professor in the Department of Chemistry at IISER Tirupati. His research interest includes the development of high-performance electrodes and electrolytes for Li-ion, Na-ion, and dual-ion batteries and beyond, including recycling spent Li-ion batteries and discarded solar panels. Further, he is also focusing on hybridizing the batteries and supercapacitors to realize high energy and high-power capability called “metal-ion” capacitors/hybrid electrochemical capacitors. He has authored and co-authored over 260 articles with an h-index of 70. He was admitted as a Fellow member of both the Royal Society of Chemistry (FRSC) and the Institute of Physics (FInstP), UK. Also, the recipient of the Swarnajayanti Fellowship (2020) in physical sciences by DST, Govt. of India. The recipient of the MRSI Medal (2020) and MRSI Materials Science Annual Research Prize (2021) by the Materials Research Society of India are notable recognitions. Currently, he is serving as an editor of the Journal of Industrial and Engineering Chemistry (Elsevier, BV)

Group website: Aravindan Research Group

Courses Taken:

4 courses (total of 16 credits) and 1 audit course were taken in the first year of the Ph.D. program. 

  • CHM626 – Electrochemistry
  • CHM625 – Chemical Kinetics and Surface Chemistry
  •  CHM713 – Bio-Inorganic Chemistry
  •  CHM615 – Forensic Science
  •  CHM631 – Solid-State Chemistry

Internal Teaching Assistantships:

  •  CHM 211 – Inorganic Chemistry (BSMS 2021 batch, 3rd Semester, Monsoon 2022)
  •  CHM 111 – General Chemistry (BSMS 2022 batch, 1st Semester, Spring 2023)

External Teaching Assistantships:

  •  Modern Engineering Materials
  •  Instrumental Methods and Applications (at Sri Venkateshwara College of Engineering, Tirupati – ongoing)


  •  Academic Excellence Award 2023
  •  CSIR-UGC JRF, 2020
  •  Best Paper Award for the oral presentation at the National Convention of
     Electrochemists (NCE) 2023


  •  Vanchiappan Aravindan, Jyothilakshmi S “Components and Methods for the Fabrication of High-Energy Sodium-Metal Batteries”. Indian Patent application No: 202441011674, Indian Institute of Science Education and Research (IISER) Tirupati.


  • Jyothilakshmi, S., P. Meshram, Abhilash, Y.-S. Lee, Aravindan, V., Graphite from Dead Li-Ion Batteries: A “Powerful” Additive for Fabrication of High-Performance Li-Ion Capacitors. Adv. Mater. Technol. 2024, 9, 2301000. https://doi.org/10.1002/admt.202301000
  • Subramanyan, K., Jyothilakshmi, S., Ulaganathan, M., Lee, Y.S., Aravindan, V., An efficient upcycling of graphite anode and separator for Na-ion Batteries via solvent-co-intercalationprocess. Carbon 216, 118525. (2024).
  • Akshay, M., Jyothilakshmi, S., Lee, Y.S., and Aravindan, V., High-Performance Li-Ion and Na-Ion Capacitors Based on a Spinel Li4Ti5O12 Anode and Carbonaceous Cathodes. Small, 2307248. (2023). https://doi.org/10.1002/smll.202307248
  • Jyothilakshmi, S., Subramanyan, K., Lee, Y.S., and Aravindan, V., Scalable green synthesis of bulk TiO2-B and its Li-storage properties in full-cell assembly with LiNi0.5Mn1.5O4 cathode. Adv. Mater. Technol, 8, 2202036 (2023).
  • Manuraj, M., Jyothilakshmi, S., Narayanan Unni, K.N. et al. MoSe2 nanoflowers as efficient electrode materials for supercapacitors. J Mater Sci: Mater Electron 31, 20571-20577 (2020). doi.org/10.1007/s10854­020­04577­z