ECS’s Detroit Section is proud to present guest speaker Fabio Albano at its October 10 section meeting. He will speak on:
Fabio Albano
Vice President of Technology
NantEnergy, Inc. (formerly Fluidic Energy)
Scottsdale, Arizona, USA
When:
Thursday, 10 October, 2019
Schedule:
17:30h | Reception
18:30h | Dinner
19:30h | Speaker (more…)
Elon Musk promised—and Jeff Dahn delivered! With the publishing of a ground-breaking paper in the Journal of The Electrochemical Society (JES), Dahn announced to the world that Tesla may soon have a battery that makes their robot taxis and long-haul electric trucks viable. Dahn and his research group is Tesla’s battery research partner. Dahn says “… that cells of this type should be able to power an electric vehicle for over one million miles and last at least two decades in grid energy storage.”
According to Doron Aurbach, JES batteries and energy storage technical editor, “This comprehensive article is expected to be impactful in the field of batteries and energy storage. It is a very systematic study by one of the most renowned and prestigious electrochemistry groups in the world. It was a pleasure for me as a technical editor to handle this paper. It substantiates all the statements about the truly high quality and importance of JES, one of the leading and most prestigious journals in electrochemistry. JES provides an excellent service to the global electrochemistry community—and thousands of ECS members—regardless of ‘impact factors.’” As of today, Dahn’s JES article has received over 31,563 abstract views, over 17,000 articles downloads, and quotes in news outlets around the world. (more…)
Naoki Ota. Photo Credit: 24M
ECS’s Detroit Section is proud to present guest speaker Naoki Ota at its September section meeting. He will speak on:
Naoki Ota
President and CTO
24M Technologies, Inc.
Cambridge, Massachusetts 02139, USA (more…)
Minkyu Kim is the 2019 winner of the ECS Korea Section Student AwardThe ECS Korea Section Student Award was established in 2005 to recognize academic accomplishments in any area of science or engineering in which electrochemical and/or solid state science and technology is the central consideration. To qualify for this award, applicants must (1) be a student who is pursuing a PhD at a Korean University, (2) be nominated by a university faculty member and (3) be a member of ECS at the time of the nomination. (more…)
The search for the next level, new, and improved electric vehicle battery is an ongoing one. And it’s one Honda may have found. According to The Drive, the Japanese automaker claims to have developed a new battery chemistry called fluoride-ion that could outperform current lithium-ion batteries.
Honda says fluoride-ion batteries offer 10 times greater energy density, meaning more storage and range for electric vehicles, thanks to the low atomic weight of fluorine that makes fluoride-ion batteries’ increased performance possible. (more…)
By: Marca Doeff, ECS Battery Division Chair
Marca Doeff, a staff scientist in the Energy Storage and Distributed Resources Division at Lawrence Berkeley National Laboratory and chair of the ECS Battery Division, discusses the future of batteries. Doeff covers advancements and developments, notable contributors and leaders, corporate sponsors and supporters, upcoming meetings and awards, all within the battery field.
What are a few current areas of battery research the division is focusing on?
Anything having to do with lithium-ion batteries, since they are turning out to be the real workhorses of the battery world. While the chemistry is fairly mature at this point, there is still a lot of work going on in silicon anodes, trying to find better cathode materials, and improving electrolytes.
Electric vehicles don’t only move people, they move companies too. And Volkswagen is making big moves when it comes to investing in battery-powered vehicles.
According to an article in AXIOS written by Eric Wachsman, director of the Maryland Energy Innovation Institute at the University of Maryland, founder of Ion Storage Systems, and 3rd vice president of the ECS board of directors, in June alone, Volkswagen invested $100 million in QuantumScape, a solid state battery startup. And now, the car company is considering building a factory in Europe to produce solid state batteries, a next-generation battery technology, to power their electric vehicles. Volkswagen isn’t alone. Solid-electrolyte batteries are getting international attention from companies like Toyota, Nissan, Dyson, and BMW, who’ve all made similar investments. (more…)
In 1888, German inventor Andreas Flocken created what is widely considered the world’s first electric car. According to The Battery Issue, recently published by The Verge, the 900-pound vehicle drove at the top speed of nine miles per hour, coming to a halt after a two and a half hour test ride. Although it was considered a success, it wasn’t entirely. The car’s battery, sustainably charged with water power, had died.
Today, nearly 130 years, German carmakers are still having trouble with their batteries – specifically with battery cells. As a result, car companies are relying on suppliers from China, Korea, and Japan for the highly needed component.
“Cells can be a major technology differentiator and cells are the by far most costly part of the battery pack,” says Martin Winter, a professor of materials science, energy, and electrochemistry at the University of Münster and ECS Battery Division and Europe Section member. Winter says a large scale production of battery cells by European or German companies will be crucial in order to take part in the “enormous and rapidly growing market.”
By: Neal Dawson-Elli, Seong Beom Lee, Manan Pathak, Kishalay Mitra, and Venkat R. Subramanian
This article refers to a recently published open access paper in the Journal of The Electrochemical Society, “Data Science Approaches for Electrochemical Engineers: An Introduction through Surrogate Model Development for Lithium-Ion Batteries.”
Image via Neal Dawson-Elli
(Click to enlarge.)
Data science is often hailed as the fourth paradigm of science. As the computing power available to researchers increases, data science techniques become more and more relevant to a larger group of scientists. A quick literature search for electrochemistry and data science will reveal a startling lack of analysis done on the data science side. This paper is an attempt to help introduce the topics of data science to electrochemists, as well as to analyze the power of these methods when combined with physics-based models.
At the core of the paper is the idea that one cannot be successful treating every problem as a black box and applying liberal use of data science – in other words, despite its growing popularity, it is not a panacea. The image shows the basic workflow for using data science techniques – the creation of a dataset, splitting into training-test pairs, training a model, and then evaluating the model on some task. In this case, the training data comes from many simulations of the pseudo two-dimensional lithium-ion battery model. However, in order to get the best results, one cannot simply pair the inputs and outputs and train a machine learning model on it. The inputs, or features, must be engineered to better highlight changes in your output data, and sometimes the problem needs to be totally restructured in order to be successful.
Superior high-voltage performance of Li-ion full cell with Li-rich layered oxide cathode prepared with fluorinated polyimide (FPI) binder, compared to the cell with conventional binder PVdF. (Click to enlarge.)
Image: Seung Wan Song
In order to increase the driving range of electric vehicles, researchers across the globe are working to develop lithium-ion batteries with higher energy storage. Now, scientists at Chungnam National University and Kumoh National Institute of Technology in Korea are taking a step toward that goal with their development of the first high-voltage cathode binder for higher energy Li-ion batteries.
Today’s Li-ion batteries are limited to charge to 4.2V due to the electrochemical instability of the liquid electrolyte and cathode-electrolyte interface, and loosening of conventional binder, polyvinylidenefluoride (PVdF), particularly at elevated temperatures. The fabrication of Li-rich layered oxide cathode with a novel high-voltage binder, as the research team demonstrated, can overcome these limitations.
Charging the batteries with Li-rich layered oxide cathode (xLi2MnO3∙(1−x)LiMO2, M = Mn, Ni, Co) to higher than 4.5V produces approximately doubled capacity than those with LiCoO2 cathode, so that doubled energy density batteries can be achieved.
