PRESS-NEWS.org - Press Release Distribution
PRESS RELEASES DISTRIBUTION

Acids enables adhesive electrodes for thin, flexible supercapacitors

Acids enables adhesive electrodes for thin, flexible supercapacitors
2024-04-01
(Press-News.org)

Supercapacitors have the superb ability to capture and store energy. Researchers can use different materials and fabrication methods to make them flexible, thin and appropriate for use in wearable or implantable electronics, like smart watches or pacemakers, but those approaches tend to be intricate and costly. Now, however, a team from Jilin University in China has developed a kind of all-in-one adhesive electrode that solves one of the major issues facing advancing flexible 2D supercapacitors - making the components work synergistically.

They published their findings on Mar. 29, 2024 in Polyoxometalates.

“Flexible 2D supercapacitors typically suffer from complicated and time-consuming fabrication procedures and poor mechanical endurance,” said corresponding author Wen Li, professor from Jilin University in China. “In this study, we created a new type of all-in-one adhesive electrode that can not only simplify the fabrication process but also overcome the interfacial displacement of conventional supercapacitors.”

Flexible 2D supercapacitors are typically sandwich stacked structure or 2D flat structure. Under repeated mechanical deformation, the interface between electrodes and the electrolyte can become displaced, rendering the interfacial contact less effective.

“However, the mismatched bulk strain between the electrode and the electrolyte layers usually causes the inevitable interfacial displacement and delamination during repeated mechanical deformation, giving rise to a significant increase in the interfacial contact resistance between electrodes and electrolyte layers,” Li said. “As a result, the charge/discharge rate is severely diminished and the energy storage performance as well as the stability are suppressed. More frustratingly, the integrated flexible supercapacitor devices in series for high-voltage output still depend on lots of conducting metal wires, which largely limit their flexibility, deformable tolerance and miniaturization for practical applications.”

To solve interfacial problems and eliminate wires, the researchers combined HPA with amino acids and carbon materials to construct a kind of all-in-one wet adhesive simultaneously carrying electron conduction, redox property, mechanical deformation, and adhesiveness. Heteropoly acids (HPAs), serving as a class of inorganic nano-sized clusters with fast and reversible redox activity enables the supercapacitor to quickly and reliably charge and discharge energy. The amino acids help the HPAs become more flexible, while the carbon materials contribute to electronic conduction. They patterned the resulting wet adhesive in a parallel manner to form flexible electrodes. After bridging the gap between the parallel electrodes by injecting a gel-electrolyte, they can conveniently create a flexible 2D supercapacitor.

“We found that the carbon components improved the electronic conduction; the chemistry of the amino acids contribute to the interfacial adhesion; and the HPA clusters both prevented larger structures from forming and endowed the electrode with electron transfer and storage ability,” Li said. “The resultant adhesives are adaptive and deformable materials that facilitate the development of flexible 2D supercapacitors for high voltage output with metal-free interconnects.”

The researchers said they would try to create substrate-independent and miniature flexible 2D supercapacitors for developing implantable power devices.

Other contributors are Chuanling Mu and Zhanglei Du, both students studied together with Li at Jilin University.

The National Natural Science Foundation of China and the Natural Science Foundation of Jilin Province supported this work.

About Polyoxometalates  

Polyoxometalates is a peer-reviewed and interdisciplinary research journal that focuses on all aspects of polyoxometalates, featured in rapid review and fast publishing, sponsored by Tsinghua University, published by Tsinghua University Press and exclusively available via SciOpen. Submissions are solicited in all topical areas, ranging from basic aspects of the science of polyoxometalates to practical applications of such materials. Polyoxometalates offers readers an attractive mix of authoritative and comprehensive Reviews, original cutting-edge research in Communication and Full Paper formats, Comments, and Highlight.

About SciOpen 

SciOpen is a professional open access resource for discovery of scientific and technical content published by the Tsinghua University Press and its publishing partners, providing the scholarly publishing community with innovative technology and market-leading capabilities. SciOpen provides end-to-end services across manuscript submission, peer review, content hosting, analytics, and identity management and expert advice to ensure each journal’s development by offering a range of options across all functions as Journal Layout, Production Services, Editorial Services, Marketing and Promotions, Online Functionality, etc. By digitalizing the publishing process, SciOpen widens the reach, deepens the impact, and accelerates the exchange of ideas.

END


[Attachments] See images for this press release:
Acids enables adhesive electrodes for thin, flexible supercapacitors

ELSE PRESS RELEASES FROM THIS DATE:

Fungal resources —— Eleven new species of Trichoderma (Hypocreaceae, Hypocreales) from China

Fungal resources —— Eleven new species of Trichoderma (Hypocreaceae, Hypocreales) from China
2024-04-01
Trichoderma spp. are globally distributed and are considered significant fungal resources. They are widely studied and applied due to their economic and ecological importance, offering numerous benefits, such as producing enzymes and antibiotics, aiding in plant growth, and protecting them from pathogens.   This study led by Prof. Chu-Long Zhang (Fungal Resources Utilization and Plant Protection Research Group, Zhejiang University, Hangzhou, China) presents the discovery of eleven new species of Trichoderma. The team obtained a total of 618 Trichoderma ...

Using chemistry and a 300-year-old technique to reinvent a drink (video)

Using chemistry and a 300-year-old technique to reinvent a drink (video)
2024-04-01
WASHINGTON, April 1, 2024 — Adding milk to an alcoholic drink and then curdling that milk is a 300-year-old preservation technique that was used by none other than Ben Franklin. Join George as he discovers the chemistry that makes this technique so useful, and learn how to make the best espresso martini you’ll ever taste. https://youtu.be/ef0heKtiuvQ?si=W5uDUccoh_bOWtZy Reactions is a video series produced by the American Chemical Society and PBS Digital Studios. Subscribe to Reactions at http://bit.ly/ACSReactions and follow us on Twitter @ACSReactions. The American ...

Reducing hospitalizations and multidrug-resistant organisms via regional decolonization in hospitals and nursing homes

2024-04-01
About The Study: In this quality improvement study of 35 health care facilities in Orange County, California, using quasi-experimental design, chlorhexidine bathing and nasal decolonization were associated with significantly lower multidrug-resistant organism prevalence and incident clinical cultures. Infection-related hospitalizations, associated costs, and deaths among nursing home residents also decreased.  Authors: Susan S. Huang, M.D., M.P.H., of the University of California Irvine School of Medicine in Irvine, is the corresponding author. To access the embargoed study: Visit our For The ...

Reliability and validity of smartphone cognitive testing for frontotemporal lobar degeneration

2024-04-01
About The Study: The findings of this study suggest that smartphones could offer a feasible, reliable, valid, and scalable solution for remote evaluations of frontotemporal lobar degeneration, a neurodegenerative pathology causing early-onset dementia syndromes, and may improve early detection. Smartphone assessments should be considered as a complementary approach to traditional in-person trial designs. Future research should validate these results in diverse populations and evaluate the utility of these tests for longitudinal monitoring.  Authors: Adam ...

App may pave way to treatments for no. 1 dementia in under-60s

2024-04-01
UCSF-led research shows smartphone cognitive testing is comparable to gold-standard methods; may detect FTD in gene carriers before symptoms start. A smartphone app could enable greater participation in clinical trials for people with frontotemporal dementia (FTD), a devastating neurological disorder that often manifests in midlife. Research into the condition has been hampered by problems with early diagnosis and difficulty tracking how people are responding to treatments that are only likely to be effective at the early stages ...

Exposure to polybrominated diphenyl ethers and risk of all-cause and cause-specific mortality

2024-04-01
About The Study: In this nationally representative cohort study, polybrominated diphenyl ether (PBDE) exposure was significantly associated with an increased risk of cancer mortality. Since the 1970s, PBDEs have been used as flame retardants in a wide array of consumer products, such as building materials, furnishings, and electronics. Further studies are needed to replicate the findings and determine the underlying mechanisms.  Authors: Wei Bao, M.D., Ph.D., and Buyun Liu, M.D., Ph.D., of the University of Science and Technology of China in Hefei, Anhui, China, ...

Binge drinking among sports gamblers

2024-04-01
About The Study: In this survey study, binge drinking in both men and women was reported at greater frequency among sports wagering individuals compared with nongamblers and non–sports gamblers.   Authors: Joshua B. Grubbs, Ph.D., of the University of New Mexico in Albuquerque, is the corresponding author.  To access the embargoed study: Visit our For The Media website at this link https://media.jamanetwork.com/  (doi:10.1001/jamanetworkopen.2024.5473) Editor’s Note: Please see the ...

New satellite dataset sheds light on Earth's plant growth

New satellite dataset sheds light on Earths plant growth
2024-04-01
In the field of environmental and climate science, researchers have developed the Comprehensive Mechanistic Light Response (CMLR) gross primary production (GPP) dataset. Derived from the TROPOMI satellite's solar-induced chlorophyll fluorescence (SIF) observations, this global dataset offers unprecedented insights into Earth's GPP, the process through which plants convert carbon dioxide and sunlight into essential resources. Gross Primary Production (GPP), the process through which plants convert carbon dioxide and sunlight into glucose and oxygen, is the Earth's largest carbon flux. Accurate quantification ...

Machine learning provides a new picture of the great gray owl

2024-04-01
The great gray owl has long been thought of as a sentinel of the Alaska wilderness, keeping watch over snow-laden forests as far north as the Brooks Range, well away from human populations. In a study published last week with Nature Scientific Reports, a team of University of Alaska Fairbanks researchers upends the notion that the iconic bird — known as the phantom of the North — lives far from cities, towns and other markers of human density. “We like to think of our wildlife, especially in Alaska, as existing in pristine wilderness untouched by humans,” said Falk Huettmann, professor ...

Pilot study shows ketogenic diet improves severe mental illness

2024-04-01
For people living with serious mental illness like schizophrenia or bipolar disorder, standard treatment with antipsychotic medications can be a double-edged sword. While these drugs help regulate brain chemistry, they often cause metabolic side effects such as insulin resistance and obesity, which are distressing enough that many patients stop taking the medications. Now, a pilot study led by Stanford Medicine researchers has found that a ketogenic diet not only restores metabolic health in these patients as they continue their medications, but it further improves their psychiatric conditions. The results, published March 27 in Psychiatry Research, suggest that a dietary intervention ...

LAST 30 PRESS RELEASES:

Less intensive works best for agricultural soil

Arctic rivers project receives “national champion” designation from frontiers foundation

Computational biology paves the way for new ALS tests

Study offers new hope for babies born with opioid withdrawal syndrome

UT, Volkswagen Group of America celebrate research partnership

New Medicare program could dramatically improve affordability for cancer drugs – if patients enroll

Are ‘zombie’ skin cells harmful or helpful? The answer may be in their shapes

University of Cincinnati Cancer Center presents research at AACR 2025

Head and neck, breast, lung and survivorship studies headline Dana-Farber research at AACR Annual Meeting 2025

AACR: Researchers share promising results from MD Anderson clinical trials

New research explains why our waistlines expand in middle age

Advancements in muon detection: Taishan Antineutrino Observatory's innovative top veto tracker

Chips off the old block

Microvascular decompression combined with nerve combing for atypical trigeminal neuralgia

Cutting the complexity from digital carpentry

Lung immune cell type “quietly” controls inflammation in COVID-19

Fiscal impact of expanded Medicare coverage for GLP-1 receptor agonists to treat obesity

State and sociodemographic trends in US cigarette smoking with future projections

Young adults drive historic decline in smoking

NFCR congratulates Dr. Robert C. Bast, Jr. on receiving the AACR-Daniel D. Von Hoff Award for Outstanding Contributions to Education and Training in Cancer Research

Chimpanzee stem cells offer new insights into early embryonic development

This injected protein-like polymer helps tissues heal after a heart attack

FlexTech inaugural issue launches, pioneering interdisciplinary innovation in flexible technology

In Down syndrome mice, 40Hz light and sound improve cognition, neurogenesis, connectivity

Methyl eugenol: potential to inhibit oxidative stress, address related diseases, and its toxicological effects

A vascularized multilayer chip reveals shear stress-induced angiogenesis in diverse fluid conditions

AI helps unravel a cause of Alzheimer's disease and identify a therapeutic candidate

Coalition of Autism Scientists critiques US Department of Health and Human Services Autism Research Initiative

Structure dictates effectiveness, safety in nanomedicine

Mission accomplished for the “T2T” Hong Kong Bauhinia Genome Project

[Press-News.org] Acids enables adhesive electrodes for thin, flexible supercapacitors