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Computer Science News Read more from Computer Science News

Exoplanet Validation with Machine Learning: 50 new validated Kepler planets

Dr Theo Damoulas (Department of Computer Science) along with Dr David Armstrong (Department of Physics) and Jevgenij Gamper (Department of Mathematics) have developed probabilistic machine learning algorithms that can separate out real planets from fake ones in the large samples of thousands of candidates found by telescope missions such as NASA’s Kepler and TESS. The results of which have led to fifty new confirmed planets, the first to be not only ranked but also probabilistically validated by machine learning.

The paper "Exoplanet Validation with Machine Learning: 50 new validated Kepler planets" has been accepted to the Monthly Notice of the Royal Astronomical Society, DOI: 10.1093/mnras/staa2498

Thu 10 Sep 2020, 13:30 | Tags: Research Artificial Intelligence

Statistics News and Events Read more from Statistics News and Events

Physics Department News Read more from Physics Department News

Charming and strange exotic hadrons

The LHCb collaboration has announced the discovery of a new particle, which appears to be the first observation of a tetraquark composed of four different types of quark.

Wed 26 Aug 2020, 11:01 | Tags: Research

News @ Warwick Chemistry Read more from News @ Warwick Chemistry

Life Sciences News Read more from Life Sciences News

Genetic mutation may hold answers to controlled breathing

The relationship between the Cx26 gene and ability to regulate Carbon dioxide is to be explored by Professor Nick Dale thanks to a £686,956 grant, from the BBSRC.

Press Release (13 August 2020)


School of Engineering News Read more from School of Engineering News

Female Engineer elected a Fellow of the Royal Society of Arts

Professor Wanda Lewis, from the School of Engineering at the University of Warwick has been elected a Fellow of the Royal Society of Arts.

Thu 12 Mar 2020, 12:42 | Tags: Civil Engineering Research Women in Engineering

WMG News Read more from WMG News

New research says Sodium-ion batteries are a valid alternative to Lithium-ion batteries

  • Lithium (Li)-ion batteries (LIBs) are the electrochemical energy storage systems of choice for a wide variety of applications, however other types of emerging battery technologies are currently on the path to share their dominant position.
  • Among them Sodium (Na)-ion batteries (NIBs) have great potential to represent the next generation low cost and environmentally friendly energy storage solution. The diverse key performance indicators required by different applications and the market diversification is the driving force pushing the Na-ion technology closer to the market.
  • A team of scientists including WMG at the University of Warwick combined their knowledge and expertise to assess the current status of the Na-ion technology from materials to cell development, offering a realistic comparison of the key performance indicators for NBs and LIBs.

Battery technologyLIBs play a primary role in the transition to a low carbon economy. However, as the market rapidly expands, the environmental and social challenges associated with the mass production of LIBs is triggering large attention toward the search for alternative energy storage solutions based on materials that can be sourced in a sustainable and responsible way. In this scenario, NIBs represent an alternative low cost, sustainable and more environmentally friendly energy storage technology.

In the paper Challenges of today for Na-based batteries of the future: from materials to cell metrics,' published on the 18th of September 2020 in the Journal of Power Sources, a large team of Na-ion technology expert scientists, led by WMG, at the University of Warwick (UK) analyse the prospect of NIBs taking a spot in the energy storage market. The paper also includes researchers from: Helmholtz Institute Ulm (Germany), College de France (France), Humboldt University Berlin (Germany), Institute for Energy technology (Norway), Université de Picardie Jules Verne (France), University of Bordeaux (France) and CIC energiGUNE (Spain).

Na- based batteries offer a combination of attractive properties. They are low cost, use sustainable precursors and have secure raw material supplies. In addition, they are considered as a drop-in technology which could benefit from the already existing Li-ion batteries manufacturing facilities.

As Li-based systems, Na-based batteries come in different forms, such as Na-ion, Na-all-solid-state-batteries, NaO2 and Na/S. While the last ones are seen as disruptive future technologies, the Na-ion technology represent an attractive technology almost ready to challenge the Li-ion batteries in specific applications.

Performance metrics are of utmost importance for the SIB technology to ensure a competitive cost per Wh and find a place in the market. In this work, the most promising electrode materials and electrolyte systems have been reviewed and performance metrics from the academic literature have been used to extrapolate full sodium ion cells performance indicators.

Authors indicate that with the ongoing development, the present best materials available for Na-ion cells should allow approaching the energy density of the present generation of Li-ion commercial cells. One of the most important application field for the developed sodium-ion battery prototypes is certainly stationary energy storage systems, where cost and cycle life represent two fundamental parameters. “In this field sodium-ion batteries have the potential to dominate the future market representing the most promising system to fill the gap between energy production and utilization by securing energy supply. However high-power applications in the electrified automotive field are a potential niche field application for NIBs” says Dr Ivana Hasa, Assistant Professor at WMG.

Further technological improvements are needed to increase the performance especially in terms of energy density. Extremely encouraging results have been achieved for the Na-ion technology in a very short time when compared to the Li-ion technology. Technological improvement will be achieved by cell component fabrication/assembly optimization, as occurred in the last thirty years for the LIB technology.

Ivana HasaDr Ivana Hasa, from WMG, University of Warwick comments:

“From an applied research point of view, the future research efforts should be devoted on fundamental research, materials discovery and understanding of the thermodynamic and kinetic processes governing the chemistry of these systems. In addition, the investigation of upscaled Na-ion batteries is of primary importance to obtain realistic data to benchmark the progress of the technology as well as the adoption of a common reporting methodology in the scientific community enabling a fair comparison among performance results.”

Tue 22 Sep 2020, 10:53 | Tags: Electrochemical Engineering Research

Maths Read more from Mathematics Institute News

News from Medical School Read more from Latest News

Psychology Read more from Psychology News

Congratulations to Professor Adam Sanborn who was part of the research team receiving the 2020 Best article award in the Journal of Behavior Research Methods.

Each year, the @Psychonomic_Soc recognizes the most outstanding papers published in each of its 7 journals. Read the teams award-winning paper on "Identifying category representations for complex stimuli using discrete Markov chain Monte Carlo with people" here: bit.ly/2ZPZXwG

Identifying category representations for complex stimuli using discrete Markov chain Monte Carlo with people

Wed 23 Sep 2020, 13:49 | Tags: research