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

Can sodium-ion batteries replace trusty lithium-ion ones?

Since the world's supply of lithium is limited, researchers are exploring other materials and anodes for rechargeable batteries.

Can sodium-ion batteries replace trusty lithium-ion ones?
2021-01-12
(Press-News.org) WASHINGTON, January 12, 2021 -- Sodium-ion batteries are a potential replacement for lithium batteries, but the anodes -- positively charged electrodes -- that work well for lithium-ion batteries don't provide the same level of performance for sodium-ion batteries.

Amorphous carbon, which lacks a crystalline structure, is known to be a useful anode, because it has defects and voids that can be used to store sodium ions. Nitrogen/phosphorus-doped carbon also offers appealing electrical properties.

In Applied Physics Reviews, from AIP Publishing, researchers in China from Zhejiang University, Ningbo University, and Dongguan University of Technology describe how they applied basic physical concepts of atomic scale to build high-performance anodes for sodium-ion batteries.

"Recent studies have shown that doped amorphous carbon, especially electron-rich element-doped amorphous carbon, is a good anode for sodium storage," said Tu. "But there was no common explanation for how sodium storage works or the doping effect of doped carbon."

On a quest for answers, the researchers used the concept of energy level orbitals to explain the affinity of pyrrolic nitrogen and a phosphorus-oxygen bond, their atomic interaction, electron distribution, and electron cloud configuration.

To get a closer look at distinct storage behavior, they applied first principles calculations, which is a method that uses basic physical quantities to calculate physical properties. It is based on electron density function, a concept of quantum mechanics that can reveal a crystal's molecular structure.

When they analyzed the electron distribution, system chemical parameters, and adsorption energies of sodium ions embedded within modified carbon materials, they found that pyrrolic nitrogen and phosphorus-oxygen bonds show real potential for sodium storage.

"Sodium ions tend to be stored within these two structures," Tu said.

The researchers designed a hydrothermal treatment to build the precursor of a phosphorus-oxygen structure, then doped a carbon anode with the dual electron-rich elements. It shows "enhanced electrochemical performance in cycle life and capacity for batteries," said Tu.

Their anode achieved a life cycle of 5,000 cycles, with an enhanced capacity of 220 milliampere hours/gram, and reduced capacity loss (0.003%/cycle).

"Our work fills the theoretical gap about the sodium storage behavior of electron-rich element-doped amorphous carbon and provides the experimental basis for using carbon," said Tu. "We provide directions to modify carbon materials for large-scale sodium-ion batteries."

INFORMATION:

The article "Sodium storage behavior of electron-rich element-doped amorphous carbon" is authored by Jiangping Tu, Yuqian Li, Liyuan Zhang, Xiuli Wang, Xinhui Xia, Dong Xie, and Changdong Gu. The article will appear in Applied Physics Reviews on Jan. 12, 2021 (DOI: 10.1063/5.0029686). After that date, it can be accessed at
https://aip.scitation.org/doi/10.1063/5.0029686.

ABOUT THE JOURNAL

Applied Physics Reviews features articles on significant and current topics in experimental or theoretical research in applied physics, or in applications of physics to other branches of science and engineering. The journal publishes both original research on pioneering studies of broad interest to the applied physics community, and reviews on established or emerging areas of applied physics. See https://aip.scitation.org/journal/are.


[Attachments] See images for this press release:
Can sodium-ion batteries replace trusty lithium-ion ones?

ELSE PRESS RELEASES FROM THIS DATE:

Rate of neonatal abstinence syndrome, maternal opioid-related diagnoses in US

2021-01-12
What The Study Did: Variations and changes in national and state rates of neonatal abstinence syndrome and maternal opioid-related diagnoses were examined in this observational study. Authors: Ashley H. Hirai, Ph.D., of the Health Resources and Services Administration in Rockville, Maryland, 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/jama.2020.24991) Editor's Note: The article includes conflicts of interest and funding/support disclosures. Please see the article for additional information, including other authors, author contributions and affiliations, conflict of interest and financial disclosures, and funding and support. INFORMATION: Media advisory: ...

Singing a tumor test song

Singing a tumor test song
2021-01-12
WASHINGTON, January 12, 2021 -- Singing may be the next-generation, noninvasive approach to determining the health of a patient's thyroid. Typically, a fine needle is used to detect the presence of a tumor in the thyroid, which most commonly affects children and younger women. However, this method can only detect about 5% of thyroid cancers. Researchers from Université de Tours, Centre Hospitalier Universitaire de Dijon-Bourgogne, and Université Bourgogne Franche-Comté suggest a simpler approach: singing. They demonstrate the technique in the journal Applied Physics Letters, from AIP Publishing. "Developing noninvasive methods would reduce the stress of patients during their medical exams," said Steve Beuve, one of the authors. "Having to sing during a medical ...

Suicide among individuals with autism spectrum disorder

2021-01-12
What The Study Did: National register data from Denmark were used to examine if people with autism spectrum disorder (ASD) have higher rates of suicide attempts and suicide compared to those without ASD and to identify potential risk factors. Author: Kairi Kõlves, Ph.D., of Griffith University in Brisbane, Australia, 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.2020.33565) Editor's Note: The article includes funding/support disclosures. Please see the article for additional information, including other authors, author contributions and affiliations, conflict ...

Higher live birth rates found after transferring fresh rather than frozen embryos...

2021-01-12
BOSTON -- For women hoping to achieve a pregnancy using freshly retrieved donor eggs, a new retrospective study led by researchers from Brigham and Women's Hospital may provide important insight. Brigham senior author Janis H. Fox, MD, had observed that when freshly retrieved donor eggs were used, pregnancy rates were higher for fresh compared to frozen embryo transfers. Fox and her colleagues were intrigued by this observation. The team set out to scientifically determine if this observation would be replicated in a larger sample of recipients. Leveraging national data from the Society for Assisted Reproductive Technology (SART), the Brigham researchers found that, in cycles using freshly retrieved donor eggs, fresh embryo transfers were indeed ...

Hip fracture incidence expected to increase two-to-three fold in some Eurasian countries

2021-01-12
A detailed analysis of the burden of osteoporosis in eight Eurasian countries has found that osteoporosis is a significant and growing health problem in the region that will escalate in the future due to expected demographic changes. The authors of the Audit report [1] carried out a review of the available literature and a survey of the representatives of the national osteoporosis societies in eight Eurasian countries. The Audit reviews both the burden and the differences between Armenia, Belarus, Georgia, Moldova, Kazakhstan, the Kyrgyz Republic, the Russian Federation, and Uzbekistan with regard to the prevalence of osteoporosis and incidence of osteoporotic fractures, future demographic changes, diagnostic resources, and treatment availability. The findings ...

Researchers develop laser-based process to 3D print detailed glass objects

2021-01-12
WASHINGTON -- Researchers have developed a new laser-based process for 3D printing intricate parts made of glass. With further development, the new method could be useful for making complex optics for vision, imaging, illumination or laser-based applications. "Most 3D printing processes build up an object layer by layer," said research team leader Laurent Gallais from The Fresnel Institute and Ecole Centrale Marseille in France. "Our new process avoids the limitations of these processes by using a laser beam to transform -- or polymerize -- a liquid precursor into solid glass." In The Optical Society (OSA) journal Optics Letters, Gallais and research team members Thomas Doualle and Jean-Claude Andre demonstrate how they used the new technique to create detailed objects in ...

Scientists study use of abundant enzyme in tumor cells to monitor cancer treatment

Scientists study use of abundant enzyme in tumor cells to monitor cancer treatment
2021-01-12
The abundant presence of an enzyme known as low molecular weight protein tyrosine phosphatase (LMWPTP) in tumor cells has long been considered an indicator of cancer aggressiveness and metastatic potential. It is also known to perform important functions in cells under normal conditions, participating in both the proliferation process and the regulation of intracellular systems. Research continues on its role in cancer progression. In Brazil, a group of researchers at the University of Campinas’s In Vitro Bioassay and Signal Transduction Laboratory led by Professor Carmen Veríssima Ferreira-Halder are studying the possibility of inhibiting this protein phosphatase ...

Formula predicts ideal dose of stem cells to cure HIV

2021-01-12
Scientists have determined the optimal conditions following a stem cell transplant that could control HIV without the need of an everyday pill, according to a study published today in eLife. Finding the right balance of stem cell dose, cell type and timing of antiretroviral therapy (ART) could potentially lead to a spontaneous cure of HIV. There are only two cases of HIV cure to date: the Berlin Patient and the London Patient, who both received stem cell transplants with stem cells from donors that lack a molecule called CCR5, which HIV is attracted to. "The major obstacle to HIV eradication is a latent reservoir of long-lived infected cells, and cure strategies aim to eliminate all infected cells or permanently prevent viral reactivation ...

Study identifies immune response biomarkers, novel pathways in four marine mollusc species

2021-01-12
Understanding the immune systems of oysters and clams is important in monitoring the effects of pollution and climate change on the health of molluscan species and the potential impacts on the aquaculture industry. Their immune responses also can serve as indicators of changes in ocean environments. A new study involving the University of Maine assessed immune responses in four economically important marine mollusc species -- the blue mussel, soft-shell clam, Eastern oyster, and Atlantic jackknife clam -- and identified new biomarkers relating to changes ...

Discovery of a new approach to inhibiting a highly treatment-refractory liver cancer

2021-01-12
BOSTON -- Reprogramming the rich connective tissue microenvironment of a liver cancer known as intrahepatic cholangiocarcinoma (ICC) inhibits its progression and resistance to standard chemotherapy in animal models, researchers from Massachusetts General Hospital (MGH) have found. This new treatment for a disease with extremely poor outcomes uses antibodies to block placental growth factor (PlGF), a member of the vascular endothelial growth factor (VEGF) family, which has been widely studied for its role in new vessel formation in cancers. PlGF is highly expressed ...

LAST 30 PRESS RELEASES:

Childhood cancer survivors are not more likely to terminate their pregnancies

Fine tuning first-responder immune cells may reduce TBI damage

Efficient solid-state depolymerization of waste PET

Women influenced coevolution of dogs and humans

Doctoral student leads paleoclimate study of precipitation and sea ice in Arctic Alaska

Continued strict control measures needed to reduce new COVID-19 strains

The Lancet: World failing to address health needs of 630 million women and children affected by armed conflict

Dramatic changes to radiotherapy treatments due to COVID-19

UTMB team proves potential for reducing pre-term birth by treating fetus as patient

New technique builds super-hard metals from nanoparticles

Regulating the ribosomal RNA production line

ECMO/CRRT in the treatment of critically ill SARS-CoV-2 pneumonia patients

Risk factors for intraoperative pressure injury in aortic surgery

Predictive value of blood pressure, heart rate, and blood pressure/heart rate ratio in a Chinese subpopulation with vasovagal syncope

A method for calculating optimal parameters of liquid chrystal displays developed at RUDN University

No more needles for diagnostic tests?

A professor from RUDN University developed new liquid crystals

Wet and wild: There's lots of water in the world's most explosive volcano

Exercising muscle combats chronic inflammation on its own

From fins to limbs

UK public supports usage of tracking technology and immunity passports in global pandemic

Climate and carbon cycle trends of the past 50 million years reconciled

Crystal structures in super slow motion

University of Cincinnati research unveils possible new combo therapy for head and neck cancer

NSAIDs might exacerbate or suppress COVID-19 depending on timing, mouse study suggests

Tiny particles that seed clouds can form from trace gases over open sea

Experts call for more pragmatic approach to higher education teaching

A quarter of known bee species haven't appeared in public records since the 1990s

AI trained to read electric vehicle charging station reviews to find infrastructure gaps

Genetic sequence for parasitic flowering plant Sapria

[Press-News.org] Can sodium-ion batteries replace trusty lithium-ion ones?
Since the world's supply of lithium is limited, researchers are exploring other materials and anodes for rechargeable batteries.