Sponsored Projects with Prof. Dalvi

•  DST SERB Core Research Grant (CRG) (2024-2027) - Received in March 2024

Cost: INR 37.21 lacs (CRG/2023/002411)

Title: All-solid-state supercapacitors using Li+ ion garnet-polymer hybrid composites

The project aims to develop all-solid-state supercapacitors using Li⁺ ion conducting garnet-polymer hybrid membranes as electrolytes, eliminating liquid electrolytes. Garnet-type Li+ ion conductors are considered the most promising solid electrolyte for all-solid-state batteries, and this work aims to incorporate them into all-solid-state supercapacitors. The project involves developing various compositions of garnet polymer hybrids and thoroughly characterizing them. Finally, 2032 and laminated cells will be developed and tested under various temperature and load conditions to assess their performance.

*JRF position is available. 

•  DST SERB Core research Grant (CRG)  (2020-2023)  - completed      

Li+ NASICON-Polymer Hybrid Composites for Solid State Supercapacitor Applications

Supercapacitors store energy within the double electrochemical layer at the electrode/electrolyte interface. In the traditional supercapacitorsm an ion permeable film soaked with liquid electrolyte is placed between high surface area electrodes. Replacing liquid electrolytes with a solid electrolyte may improve their reliability for high temperature, low dimensional and environment friendly and corrosion free applications. Proposal aims at development and characterization of all-solid-state supercapacitors using NASICON-polymer hybrid membranes as separators and high surface area electrodes. Applying various hybrid electrolytes prepared from Li⁺ ion NASICONs and polymer hosts, Electrochemical double layer capacitors (EDLCs), pseudo capacitors and Hybrid supercapacitors will be fabricated and characterized. Work thus would involve synthesis of Li⁺ ion based NASICON-polymer hybrid composite films and fundamental characterization (ii) development of button-type solid state supercapacitors (EDLC, Psudo and Hybrid) using novel NASICON polymer hybrid films as electrolytes and their characterization. And finally (iii) To understand the mechanism of charge transfer at the electrode-electrolyte interface and role of solid electrolyte in performance of supercapacitors.