Personality in Science
R&D Projects
News Of Science
International Research & Education
Science & Technology Articles

R&D PROJECTS PERSONALITY IN SCIENCE International research and education Methods of testing and research Standardization and Certification NANOTECHNOLOGY NEW ENERGY SCIENCE AND TECHNOLOGY ARTICLES


Follow us:


Materials Research Centre Ltd. DREXEL UNIVERSITY DNI Carbon materials LINKS Yandex Search

New technology for grid-scale energy storage
An interdisciplinary team of researchers from Drexel University have reported the development of a new technology for grid-scale energy storage which could provide a fast, efficient method for storing energy on the electrical grid...

This new technology, dubbed the electrochemical flow capacitor, stores energy in the same way as a supercapacitor, but is much less costly to scale up for large, industrial applications. Results from the teams most recent study were published in a special issue of Advanced Energy Materials ("The Electrochemical Flow Capacitor: A New Concept for Rapid Energy Storage and Recovery") focusing on next-generation batteries.

The electrochemical flow capacitor uses a flow cell architecture, similar to existing redox flow batteries for grid storage, consisting of an electrochemical cell connected to external electrolyte reservoirs. However, this technology is unique in that it uses a flowable slurry of capacitive particles suspended in a liquid electrolyte carrier fluid. Uncharged slurry is pumped through a flow cell, where energy is stored capacitively within the solid particles.The charged slurry can then be held in reservoirs until the energy is needed, at which time the entire process is reversed. By utilizing this capacitive slurry instead of conventional battery electrolytes, the Drexel team says that its new design can be operated in high power applications for hundreds of thousands of charge-discharge cycles, vital for industrial applications

flow capacitor

llustration by Kristy Jost, PhD student of Materials Science and Engineering.

It is well known that conventional supercapacitors provide very high power output with minimal degradation in performance. However, they have always had fairly limited energy storage capacity, said Dr. Yury Gogotsi, distinguished university professor and Trustee Chair of Materials Science and Engineering and director of the A.J. Drexel Nanotechnology Institute at Drexel University, one of the lead scientists on the project. By incorporating the active material of supercapacitors into a fluid, we are able to address issues of capacity and scalability by adopting the system architecture from redox flow batteries.

Dr. E. C. Kumbur, Director of the Electrochemical Energy Systems Laboratory at Drexel states: Flow battery architecture is very attractive for grid-scale applications because it allows for scalable energy storage by decoupling the power and energy storage. In flow battery systems, as well as the electrochemical flow capacitor, the energy storage capacity is determined by the size of the reservoirs which store the charged material. If a larger capacity is desired, the tanks can simply be scaled up in size. Similarly, the power output of the system is controlled by the size of the electrochemical cell, with larger cells producing more power.

Slow response rate is a common problem for most energy storage systems. Incorporating the rapid charging and discharging ability of supercapacitors into this architecture is a major advantage to effectively store the fluctuating energy sources and deliver the energy rapidly as needed, Kumbur said. Electrical energy storage is the bottleneck for more widespread implementation of renewable energy sources like wind and solar, said Dr. Volker Presser, Assistant Research Professor in the Department of Materials Science and Engineering at Drexel. We believe that this new technology has important applications in that field. Moreover, these technologies can also be used to enhance the efficiency of existing power sources, and improve the stability of the grid.

The teams ongoing work is focused on developing new slurry compositions based on different carbon nanomaterials and electrolytes, as well as optimizing their flow capacitor design.

We have observed very promising performance so far, but this is by no means the upper limit of this technology, Gogotsi said. The team is also designing a small demonstration prototype to illustrate the fundamental operation of the system. Materials Research Centre also participates in development of the pilot device with flow electrochemical capacitor.

Source: Drexel University

< .   . >


26.08.2017 02:57
Drexel researchers have developed a recipe for self batteries
Researchers described a process by which nanodiamonds tiny diamond particles 10,000 times smaller than the diameter of a hair curtail the electrochemical deposition, called plating, that can lead to hazardous short-circuiting of lithium ion batteries...
04.06.2017 23:47
Professor Yury Gogotsi was speaking about nanotechnology in energy storage at the World Science Fest
Join world-class nanoscientists and environmental leaders to explore how the capacity to harness molecules and atoms is accelerating spectacular inventions including light-weight wonder materials, vital energy-storage technologies, and new sources of renewable energy which promise to redefine the very future of energy...
04.06.2017 23:39
MXenes discovered by prof. Yury Gogotsi are at the forefront of 2D materials research
Its been just over five years since researchers in Drexels Department of Materials Science and Engineering reported on a new, two-dimensional material composed of titanium and carbon atoms, called MXene...
11.02.2017 18:56
Its been just over five years since researchers in Drexels Department of Materials Science and Engineering reported on a new, two-dimensional material composed of titanium and carbon atoms, called MXene...
05.12.2009 19:20
In Ukraine was designed and produced its own sliding door system made of polished stainless steel
Sliding door system made of polished stainless steel for internal glass sliding door
Engineers of Materials Research Centre designed and produced the first in Ukraine modernized sliding door system made of polished stainless steel, used for sliding door and panel structures with tempered glass
03.12.2009 10:20
Dr. Seluk Geri Named 2010 Delaware Valley Engineer of the Year
Dr. S.Gucheri, Dean of the Drexel Universitys College of Engineering, the 2010 Delaware Valley Engineer of the Year
Engineers Club of Philadelphia on behalf of the professional and technical societies in the Delaware Valley reworded Dr. S.Gucheri, the dean of Drexel Universitys CoE, the title of the 2010 Delaware Valley Engineer of the Year.
 Contact information
MRC Ltd. Materials research centre
Kiev, Krzhizhanovskogo, 3
Tel.: +38 (044) 233-24-43
Tel.: +38 (044) 237-71-87
Fax: +38 (044) 502-41-49
We work: Mon - Sat 10:00 - 18:00
 Creative Commons

Photos of the projects implemented by MRC TM "", as well as articles and videos are published under the Creative Commons Attribution with preservation of terms
(Attribution-ShareAlike) 3.0 Unported. You can freely copy, distribute, modify the materials with link to the author.

name=Contacts face= 0.21