Indian Science Technology and Engineering facilities Map
 
Supplier Map
Service Map

Patents

Patent Details

Applicant:
Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) Bengaluru 
Title:
Electrolyte Comprising A Supramolecular Nanofiber and Microsupercapacitor 
Inventor(s):
Giridhar Udapi Rao Kulkarni, Subi Jacob George, Muralli Gedda, Umesha Mogera 
Application type:
Applied - 2015-10-01 
Application Number:
5285/CHE/2015 
Applied at:
India 
Entered by:
Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) Bengaluru 
Abstract:
Making all solid state planar micro-supercapacitors with high power and energy densities has become big challenge for to its demand for many energy related applications. Carbon based planar all solid state supercapacitors (ASSS) for on chip energy has gained immense attention recently due to its high power densities larger than electrolytic capacitors. Lot of efforts are going on to increase the energy density of these planar supercapacitors by increasing the electrochemical voltage window of the electrolyte. Easily processable aqueous solid electrolyte gel PVA/H2SO4 suffer from low working voltage window. Ionic liquid based solid electrolytes are being used which has higher electrochemical voltage window, however it is expensive, needs N2/Ar atmosphere for preparation and highly moisture sensitive, thus needs encapsulation for ambient working conditions. Here we use solution synthesized supramolecular 1D nanofibres as solid electrolyte to fabricate planar micro-supercapacitors with high power density and high energy density values. This electrolyte is inexpensive compared to commercially available ionic liquids with similar operating window. Very low quantity of 1 μL of 1mM aqueous solution dries up leaving behind nanofibres on the electrodes. Charges arranged in 1D arrangement not only empower very high storing capacity to the device also avoid the nanostructuring of the electrodes. It is also been found to be ideal for very high humid conditions. Flexible devices were made which found to be invariant even for extreme bending of the device. Moreover no encapsulation is required for the device as the electrolyte is ambient stable and repairable. 

 
THE VISION
THE MISSION
ABOUT I-STEM
It has always been the basic tenet of the Government of India, in generously funding R&D efforts at academic institutions over the years, that facilities established through such support be made available to those needing them and qualified to make use of them for their own research work
read more >>

However, this was never easy or straightforward for, among other reasons, there was no ready source of information of what facility was available and where. Thanks to the Web, it is much easier today to have a national and regional “inventory of resources”, so as to match users with the resources they need, and to do all this in an efficient and transparent manner.

This can lead to a leap in R&D productivity and greatly enhance the effectiveness of public investment. This is the motivation behind I-STEM.
read less <<
Visitor Hit Counter
Hosted at Indian Institute of Science
Copyright © 2024 I-STEM. All rights reserved.
Audited by: STQC Bengaluru.