Research Project Information

Research Project Summary Information

Development of Novel Ionic Liquid Electrolytes for Lithium Ion Capacitor (LIC) Applications (28460)

Research Foundation of SUNY


The College of Nanoscale Science & Engineering (CNSE) has been actively involved in novel ionic liquid electrolytes for the past five years, leading to multiple breakthroughs in electrolyte systems with high voltage windows (> 6-7V), wide temperature stability ranges for the salt (300-450°C), high conductivity (40-65 mS/cm), and higher solubility (3-5 M) in conventional solvents. CNSE’s novel high performance Oxygen-Containing Spirobipyrrolidinium Salts represent the most unique feature of its electrolyte system. Preliminary testing of electrodes using the CNSE electrolytes has typically yielded at least 2X energy density enhancement. Under Agreement 18516, CNSE is developing a protic ionic liquid electrolyte for a pseudocapacitor application. This project will use the same IL salts with different solvents to develop an optimized electrolyte for a lithium-ion capacitor (LIC) application. A LIC is a hybrid capacitor device that has high energy and high power.

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Project Description

This project will develop a novel ionic liquid electrolyte system capable of delivering 65% better performance than state of art. The electrolyte system will be designed to have a wider temperature range capability, wider voltage window capability, a life time >106 cycles, low internal resistance, and low self-discharge. These ionic liquid electrolytes will be optimized for use in lithium ion capacitors and they will be tested in Maxwell Technologies Inc. lithium ion capacitor devices.


CNSE can optimize the electrolytes to adapt to various applications such as lithium-ion batteries, LIC, Electric Double Layer Capacitors, or pseudocapacitors. In addition, CNSE could license technology to manufacturers to produce high volume electrolytes. The world market for supercapacitors is $30 billion, while the LIC market is expected to reach $6 billion by 2020.

Project Results


Research Foundation of SUNY
P.O. Box 9 Attn: John Loonan
Albany, NY 12207

Principle Investigator

Manisha Rane-Fondacaro

Universities Involved


Project Type:

Product Development

Technologies Types:

Energy Storage

NYSERDA Contact Information

Jennifer Harvey


R&D -Transport & Power Systems

Contract Details

Start Date: 9/20/2012
Project Status: Active
Contract Number: 28460

Last Updated: 5/13/2013