Researcher at TU Graz demonstrates in Nature Materials that it is possible to combine the high-energy density of batteries with the high-power output of super capacitors in a single system – thanks to liquid energy storage materials.
Batteries and super capacitors are electrochemical energy storage media, but they are as different as night and day. Both are capable of energy storage and targeted energy release – and yet there are major differences between the two. Batteries store very large amounts of energy that is released slowly but constantly. By contrast, super capacitors can only store small amounts of energy, but they release this energy much faster and more powerfully with large short-term peak currents.
Stefan Freunberger at TU Graz together with a group of researchers from Université de Montpellier in Southern France had a sudden flash of insight. Why not exploit the benefits of batteries and super capacitors simultaneously and combine them in some kind of energy hybrid, they asked themselves. In the current issue of renowned scientific journal Nature Materials the group introduces its approach, describing a liquid energy storage material for the first time in a European Research Council (ERC) sponsored study. While the energy density of this material is comparable to that of a battery, its power output equals that of a super capacitor.
Ions with an urge to move
“Batteries release energy so slowly and take so long to charge because their energy storage materials are solid. This make it difficult for the ions to move. But as the ions in a super capacitor move in a liquid, they are much more mobile than in a solid body,” explains Stefan Freunberger from the Institute of Chemistry and Technology of Materials at TU Graz. The novel redox active ionic liquid developed by Freunberger in co-operation with the French colleagues consists of an organic salt that is liquid at a temperature of just below 30 °C – only slightly above room temperature. Similar to a solid storage medium this liquid can store many ions, but allows them to be much more mobile.
The sudden flash of insight of Freunberger and colleagues culminated in a first approach to create an integrated energy supply system that offers a constant energy supply with high-power output. In some cases we are still faced with an either/or decision. Automatic doors, for example in trams or trains, are typical candidates for super capacitors. Energy is only needed for a very short time but when it is, a high-power output is of the essence. In other cases batteries are clearly the first choice. “But our principle of an energy hybrid can offer enormous advantages, for example when applied in electric vehicles. So far, electric vehicles often carry a combination of different battery types or battery systems together with super capacitors. If we had a single system that combines the benefits of both energy storage types, we could save considerable space and resources,” remarks Freunberger.
Learn more: Energy hybrid: Battery meets supercapacitor
[osd_subscribe categories=’energy-hybrid’ placeholder=’Email Address’ button_text=’Subscribe Now for any new posts on the topic “ENERGY HYBRID”‘]
Receive an email update when we add a new ENERGY HYBRID article.
The Latest on: Energy hybrid
[google_news title=”” keyword=”energy hybrid” num_posts=”10″ blurb_length=”0″ show_thumb=”left”]
via Google News
The Latest on: Energy hybrid
- McLaren’s Plug-In Hybrid Artura Drops Its Topon May 17, 2024 at 11:24 am
That’s very close to the Artura coupe. Because of the plug-in hybrid format, this is also McLaren’s most energy-efficient convertible, with 45 miles per gallon equivalent (MPGe) when using the ...
- Energy News Roundup: Industry groups fight federal emissions rules they say will hurt regionon May 17, 2024 at 7:33 am
A fuel industry group is spending $6.6 million on ads in Michigan, Ohio, Pennsylvania, Wisconsin and other swing states that take aim at the Biden administration’s tailpipe emissions standards. The ...
- BYD Ventures into Global Market with Shark Plug-In Hybrid Pickup Truckon May 16, 2024 at 1:45 pm
China-based manufacturer BYD has launched its first pickup truck, the BYD Shark plug-in hybrid, in Mexico. Positioned as a new energy-intelligent luxury ...
- Viva Gold to Present at the Clean Energy & Precious Metals Hybrid Investor Conference on May 23rdon May 16, 2024 at 10:20 am
Company invites individual and institutional investors, as well as advisors and analysts, to attend real-time, interactive presentations on VirtualInvestorConferences.comVANCOUVER, British Columbia, ...
- Aftermath Silver Ltd. to Present at the Clean Energy & Precious Metals Hybrid Investor Conference on May 23rdon May 16, 2024 at 5:35 am
The Company invites individual and institutional investors, as well as advisors and analysts, to attend real-time, interactive presentations on VirtualInvestorConferences.comVANCOUVER, British ...
- Better Late Than Never: IndyCar to Add Hybrid Power in Julyon May 15, 2024 at 2:00 pm
IndyCar announced that it would be moving to a hybrid powertrain. That August, IndyCar finalized its plans, confirming that the hybrid system would debut in 2022. The new system was expected to do ...
- IndyCar Is Finally Going Hybrid and They’ll Make the Switch This Seasonon May 15, 2024 at 8:23 am
IndyCar confirmed that Honda and Chevrolet will roll out their new hybrid engines on July 5, concluding a journey that began five years ago with an announcement at the 2019 Indy 500—or what feels like ...
- IndyCar’s hybrid engine extension to debut in Julyon May 14, 2024 at 7:51 pm
A fter five years of delays and setbacks, the IndyCar Series will make the transition to hybridization at the July 5-7 race weekend at the Mid-Ohio Sports Car Course.
- Gujarat Toolroom to Set-up Hybrid-Green Energy Power Plant | Details Insideon May 14, 2024 at 11:07 am
The project's innovative design and efficient operational framework promise to deliver sustainable energy solutions while enhancing shareholder value over the long term.
via Bing News