Page 42 - European Energy Innovation - Summer 2015 publication
P. 42
Summer 2015 European Energy Innovation


Energycaps: High power and

high energy lithium ion capacitor

A research project in the frame of Industry-Academia Partnerships and Pathways (IAPP) - Marie Curie Actions

The management for partners to the forefront in development/optimization.
of the electricity this field of research in 2010.
supply interruptions Two academic teams (Poznan RECUPYL is currently developing
that can occur University of Technology, a recycling process and assessing
unexpectedly is vital for hospitals, Kiev National University of the environmental impacts.
telecommunication centers, Technologies and Design) and
airports, supermarkets, banks, two small companies (YUNASKO YUNASKO develops a prototype
tunnels or critical production from Ukraine and RECUPYL from of Lithium-ion capacitor. The
plants. About 20 seconds are France) were selected. They joined device provides an energy
needed to start an additional SOLVAY in the collaborative density similar to that of lead-acid
electric generator of several project “Energycaps”, sponsored battery, a charging time as low as
megawatts (e.g., a diesel by the European Marie Curie 1 minute, and a number of cycles
generator). To ensure the funding program “IAPP” (Industry- and power capability improved at
uninterrupted power supply Academia Partnerships and least by a factor of 100.
(UPS), an intermediate device Pathways) with more than 2 million
capable of delivering such a Euros. Solvay products have been used
high power within a fraction of in the electrodes, the separator
a second and keeping it up to The objective of the project is to and the electrolyte mixture.
about 20 seconds is needed. demonstrate market perspectives According to YUNASKO, LiTFSI,
of this emerging technology (Li- produced by SOLVAY is the
Lead-acid battery has been ion capacitors). preferred lithium salt for Li-ion
meeting the demand of capacitor. l
uninterrupted power supplies The project started at the end Electric bus in Nice (FR) powered without
(UPS) at a megawatt scale for of 2011. It has a mixture of any fossil fuel and without cable (photo with
many decades. Its power to secondments (26 researchers, courtesy of the “PVI company”). The bus
weight ratio is, however, very 143 months) and recruitments. gets the energy at each bus station within
low and appears as major Academic partners are involved 20 seconds. This energy is currently stored
inconvenience. in electrodes, electrolytes, in classical supercapacitor (also called
separator and current collector ultracapacitors) and allows about 1km range
Lithium-ion capacitors have (see:
recently emerged as an
interesting alternative. Their
competitive advantage over
lead-acid battery is an important
reduction of the device size.
Compared to Li-ion batteries,
Li-ion capacitors offer a better
compromise between power and
energy for this application.

This technology was identified as Coordinator and contact:
a new opportunity for SOLVAY to
promote the products typically
sold on the lithium-ion battery
market. Li-ion capacitor could
also be used to improve the
fuel saving and reduce the CO2
emission in hybrid vehicles.

A SOLVAY researcher sought
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