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Science & Tech.
Pradeep Kumar

09/10/21 10:50 AM IST

Novel composite materials developed

In news

Indian researchers have developed a thermally stable solid electrolyte for lithium-ion batteries for energy storage that promise application for a wide range of temperatures from 30-500 degrees Celsius.

Details
  • Energy generation and storage is the need of the hour, and worldwide efforts are being invested for developing cost-effective, efficient options.
  • The current state of art indicates a possible replacement of conventional low energy density, low shelf life batteries with Lithium-ion and Sodium-ion batteries.
  • A group of researchers have developed solid-state energy storage devices in the form of thermally stable solid electrolytes for Li+ ion batteries and supercapacitors and tested their stability and efficiency using state of the art facilities.
Research & result
  • The team has used DST FIST-supported High-temperature X-ray diffraction (HTXRD) facility Rigaku SmartLab, particularly useful for the thermal stability assessment of novel solid electrolytes.
  • The XRD patterns were obtained in situ up to 500oC.
  • Now, the batteries and supercapacitors to operate at high temperatures are being developed.
  • The results from HTXRD patterns (technique used to study the structural changes in the material as a function of temperature) for the range 30-500 oC for the ionic liquid (IL) dispersed sol-gel derived NASICON( superionic sodium conductors) structured LiTi2(PO4)3 (LTP) composites indicated that IL does not react with LTP at higher temperatures to form unwanted compound.
  • The composite was used in Lithium button cells.
  • Excellent stability has been achieved under battery conditions. The composite promises battery application for a wide range of temperature.
Source: PIB

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