Where Do Batteries End and Supercapacitors Begin?

Rus На русском Eng In English

Electrochemical measurements can distinguish between different types of energy storage materials and their underlying mechanisms.

Batteries keep our devices working throughout the day — that is, they have a high energy density—but they can take hours to recharge when they run down. For rapid power delivery and recharging (i.e., high power density), electrochemical capacitors known as supercapacitors are used. One such application is regenerative braking, used to recover power in cars and electric mass transit vehicles that would otherwise lose braking energy as heat. However, supercapacitors have low energy density. Batteries and supercapacitors both rely on electrochemical processes, although separate electrochemical mechanisms determine their relative energy and power density.

During the past 5 to 7 years, the energy storage field has witnessed a dramatic expansion in research directed at materials that might combine the high energy density of batteries with the long cycle life and short charging times of supercapacitors. However, the blurring of these two electrochemical approaches can cause confusion and may lead to unwarranted claims unless careful attention is paid to fun-damental performance characteristics.

Comparing batteries and supercapacitors.


The prospect of developing materials with the energy density of batteries and the power density and cycle life of supercapacitors is an exciting direction that has yet to be realized. Whether to approach these goals by increasing the power density of battery materials or increasing the energy density of supercapacitors is one of the enticing features of the field. However, there needs to be clarity in the terminology used in combination with appropriate measurements and analyses. Proper evalua-tion of new materials and their charge storage mechanisms will facilitate progress in this important field of electrical energy storage.

Patrice Simon,Yury Gogotsi, Bruce Dunn "Where Do Batteries End and Supercapacitors Begin?"

SCIENCE 343, 1210 (2014); DOI: 10.1126/science.1249625

Source: www.sciencemag.org


News from MRC.ORG.UA

Our new collaborative research paper with Drexel team on Porous Ti3AlC2 MAX phase enables efficient synthesis of Ti3C2Tx MXene

porous MAX phase technologyIn this study, we have optimized the synthesis of MAX phases for MXene manufacturing. The main purpose of this study is to develop a porous Ti3AlC2MAX phase that can be easily ground into individual grains manually without time-consuming eliminating the need for drilling and intenseball-milling before MXene synthesis. Moreover, we also demonstrate the synthesis of highly porous Ti3AlC2 (about 70%) from an inexpensive raw materials.

Novel electrically conductive electrospun PCL‑MXene scaffolds for cardiac tissue regeneration

Scanning electron microscopy image of PCLMXene membranes crosssection (left side) with the representation of EDX line (dotted line) and example of cross-sectional EDX elements line scan (right side)Here we demonstrate a new developed method for depositing Ti3C2Tx MXenes onto hydrophobic electrospun PCL membranes using oxygen plasma treatment. These novel patches hold tremendous potential for providing mechanical support to damaged heart tissue and enabling electrical signal transmission,thereby mimicking the crucial electroconductivity required for normal cardiac function. After a detailed investigation of scaffold-to-cell interplay, including electrical stimulation, novel technology has the potential for clinical application not only for cardiac regeneration, but also as neural and muscular tissue substitutes.

Read recently published paper about our collaborative work: MXene Functionalized Kevlar Yarn via Automated, Continuous Dip Coating

MXene Functionalized Kevlar Yarn via Automated,Continuous Dip CoatingThe rise of the Internet of Things has spurred extensive research on integrating conductive materials into textiles to turn them into sensors, antennas, energy storage devices, and heaters. MXenes, owing to their high electrical conductivity and solution processability, offer an efficient way to add conductivity and electronic functions to textiles. Here, a versatile automated yarn dip coater tailored for producing continuously high-quality MXene-coated yarns and conducted the most comprehensive MXene-yarn dip coating study to date is developed. 

MX-MAP project secondment visit of Dr. Oleksiy Gogotsi and Veronika Zahorodna from MRC to University of Padova, Italy, October 2023

altMX-MAP project participants from MRC Dr. Oleksiy Gogotsi and Veronika Zahorodna performed split secondment visit to project partner organization University of Padova (Italy). MX-MAP project works on development of the key strategies for MXene medical applications. 

CanbioSe Project Meeting and Project Workshop, September 26-27, 2023, Montpellier, France

altCanbioSe Project Meeting and Project Workshop was held  at European Institute of Membranes (IEM), University of Montpellier, France on September 26-27, 2023. The workshop was focused on the theme of "Commercializing Biosensors, Intellectual Property, and Knowledge Transfer from Academia to Industry.

IEEE NAP 2023: 2023 IEEE 13th International Conference “Nanomaterials: Applications & Properties” Sep 10, 2023 - Sep 15, 2023, Bratislava, Slovakia

altDr. Oleksiy Gogotsi and Veronika Zahorodna visited IEEE NAP 2023 conference held in Bratislava on September 10-15, 2023. The prime focus of the IEEE NAP-2023 was on nanoscale materials with emphasis on interdisciplinary research exploring and exploiting their unique physical and chemical proprieties for practical applications.

Visit to CEST labs in Wiener Neustadt (Low Energy Ion Scattering, Batteries development) and TU Vienna (ELSA, SFA)

altDirector of MRC and Carbon-Ukraine Dr. Oleksiy Gogotsi visited CEST labs in Wiener Neustadt (Low Energy Ion Scattering, Batteries development) and TU Vienna (ELSA, SFA). He meet with Dr. Pierluigi Bilotto, Dr. Chriatian Pichler and their colleagues, discussing novel materials and r&d activities for new technologies.

MX-MAP Session at YUCOMAT Conference 2023 "Towards MXenes’ biomedical applications by high-dimensional immune MAPping", HORIZON-MSCA-2021-SE-01 project MX-MAP.

altMX-MAP Session was held during the YUCOMAT Conference 2023 titled: "Towards MXenes’ biomedical applications by high-dimensional immune MAPping", HORIZON-MSCA-2021-SE-01 project MX-MAP.


altThe conference was organised by the Materials Research Society of Sebia and supported by MRS-Singapore with the participation of a pleiad of distinguished scientists.

CANBIOSE secondment visit of Dr. Oleksiy Gogotsi and Veronika Zahorodna from MRC to European Institute of Membranes in Montpellier, France

altCANBIOSE project participants from MRC Dr. Oleksiy Gogotsi and Veronika Zahorodna performed secondment visit to project partner organization European Institute of Membranes in Montpellier (France) on August -September 2023.

MRC researchers visited Nanobiomedical Centre, Adam Mickewicz University in Poznan, Poland due to CANBIOSE project, April-May 2023

altMRC researchers Dr. Oleksiy Gogotsi and Veronika Zahorodna were visiting Nanobiomedical Centre, Adam Mickewicz University in Poznan, Poland due to close collaboration with AMU team led by Dr. Igor Iatsunskiy. 

Twenty Third Annual Conference - YUCOMAT 2022 Twelfth World Round Table Conference on Sintering - XII WRTCS 2022 Herceg Novi, August 29 – September 2, 2022


Our collaborators and partners  presented our joint research at the Yucomat conference - at Symposium on Biomaterials and two collaborative posters at Conference Poster Session.

MRC team visited 2nd international MXene conference "MXenes: Addressing Global Challenges with Innovation"at Drexel University, USA on Aug. 1-3, 2022

second MXene COnference 2022, Drexel University, USA

MRC team members Dr. Oleksiy Gogotsi, Veronika Zahorodna, Dr. Iryna Roslyk visited MXene Confrence 2022.  This 2nd international MXene conference at Drexel University, August 1-3, 2022, put major MXene discoveries, including their record-breaking electrical conductivity, electromagnetic interference shielding capability, electrochemical capacitance, light-to-heat conversion, and other properties, into perspective.

Launching HORIZON-MSCA-2021-SE-01 MX-MAP Project: Towards MXenes biomedical applications by high-dimensional immune MAPping

MX-MAP project Meeting during the MXene international conference held in Drexel University on Aug. 3,  2022, and discussing the roadmap for launching MX-MAP research project on MXenes for medical applications.

H2020-MSCA-RISE NANO2DAY research project, last updates


Researchers from University of Latvia and Materials Research Center, Ukraine are visiting Drexel University due to Horizon-2020-MSCA-RISE NANO2DAY research project.