SOLID STATE IONICS RESEARCH@ BITS Pilani

News on our work:

Development of new composites

https://dst.gov.in/novel-composite-materials-developed-high-temperature-battery-and-supercapacitors

• Neha wins the best oral presentation award at the Asian conference on solid state ionics in Chennai, (Feb 2024)
• Shrishti Sharma won the best oral presentation award at the National Conference on Solid State Ionics, organized by Delhi University, in December 2021.

Position in our research group:

one JRF Position is available with Prof Anshuman Dalvi in the DST project

All-solid-state supercapacitors using Li+ ion garnet-polymer hybrid composites (2024-2027) interested may write directly to Prof Anshuman Dalvi  

Eligibility: M Sc Physics with 60% marks

                   Gate/NET/CSIR desirable

Deadline: April 15th, 2024

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.

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Materials Physics Lab for Solid State Ionics and Energy Materials Research

Materials Physics Laboratory for solid state ionics research was created by Prof. Anshuman Dalvi in 2006. The lab is equipped for synthesis and characterization of materials for all-solid-state battery ans supercapacitor applications. Lab has following facilities:

AUTOLAB 204 Electrochemical workstation (2 channel galvanostatic charge-discharge with CV and EIS)
Gamry Electrochemical workstation (galvanostatic charge-discharge with CV and EIS)
BET Surface area analyzer (Belsorp MiniX)
Vacuum Oven
HIOKI IM 3570 impedance analyzer (4Hz-5 MHz) for impedance spectroscopy
HIOKI 3522-50 LCR meter (1mHz to 100kHz)
HIOKI 3532-50 LCR meter (42Hz-5MHz)
Scientific LCR meter
High resolution Keysight multimeters
Keithley electrometer
Temperature controllers - PID controller Libratherm PRC 309; Multispan 421P
Ionic mobility setup by transient ion current technique (homemade)
A Liquid Nitrogen Cryostat (home made) for 150-300K.
High temperature electrical transport studies (300-1000K)

2. Synthesis

Fritsch P6 planetary ball mill (with 80 mL Agate, Zirconia, and Tungsten carbide pots and balls)
Polymer Spin coating unit
Lanton Furnace (300-1400K)
Polymer Hot press (Microtech)
Mac Furnace (300-1000K)
Microwave oven
Controlled atmosphere Glove Box (MTI)
Shimadzu Digital balance (0.01 mg)
Hydraulic press (10 T)
Hydrtothermal Autoclave (50 mL)

3. Structural Studies

X-ray diffractometer (Rigaku miniflex-II) from DST-FIST support
Homemade Differential thermal analyzer (DTA)

4. Lithium/Lithium ion 2032 coin cell fabrication unit (Ranga Techno Implex