Tech Highlights was prepared by David Enos, Mara Schindelholz, and Mike Kelly of Sandia National Laboratories, Colm Glynn and David McNulty of University College Cork, Ireland, and Donald Pile of Rolled-Ribbon Battery Company. This article was originally published in Interface. Read the original article.

Spray Drying-Assisted Synthesis of Li₃VO₄/C/CNTs Composites for High-Performance Lithium Ion Battery Anodes

Published in the “Focus Issue of Selected Papers from IMLB 2016 with Invited Papers Celebrating 25 Years of Lithium Ion Batteries.” Graphite-based materials continue to be the most commonly used anode materials in commercial Li-ion batteries (LIBs). However, the practical application of graphite anodes in largescale LIBs may be hindered by safety issues arising from Li dendrite formation on the surface of the anode when cycling at fast rates. Read the full paper.

From: Yang Yang, Jiaqi Li, Dingqiong Chen, and Jinbao Zhao, J. Electrochem. Soc., 164, A6001 (2017).

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The Journal of The Electrochemical Society (JES) Focus Issue on Mathematical Modeling of Electrochemical Systems at Multiple Scales in Honor of John Newman is now available online, with 72 open access papers published in the ECS Digital Library.

“This focus issue of the Journal of The Electrochemical Society is devoted to the mathematical modeling of electrochemical systems across multiple scales,” the authors say in the focus issue’s preface. “It is dedicated to the work of Professor John Newman from UC Berkeley, who helped establish the field of modeling of electrochemical systems, and is aligned with a previous focus issue and regular symposium on multiscale modeling for electrochemical systems at ECS biannual meetings.”

Newman is a renowned battery researcher and developer of “The Newman Method” — a sophisticated approach to mathematically analyzing complex electrochemical problems. He clarified the physicochemical laws that govern the behavior of electrochemical systems and demonstrated how to use these laws to correctly formulate and solve problems associated with batteries, fuel cells, electrolyzers, and related technologies. He is the author of the book Electrochemical Systems.

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A team of engineers has found a simple, economical way to make a nano-sized device that can lift many times its own weight.

Their creation weighs 1.6 milligrams (about as much as five poppy seeds) and can lift 265 milligrams (the weight of about 825 poppy seeds) hundreds of times in a row.

Its strength comes from a process of inserting and removing ions between very thin sheets of molybdenum disulfide (MoS2), an inorganic crystalline mineral compound. It’s a new type of actuator—devices that work like muscles and convert electrical energy to mechanical energy.

The discovery—an “inverted-series-connected (ISC) biomorph actuation device”—appears in Nature.

“We found that by applying a small amount of voltage, the device can lift something that’s far heavier than itself,” says Manish Chhowalla, professor and associate chair of the materials science and engineering department of in the School of Engineering at Rutgers University.

“This is an important finding in the field of electrochemical actuators. The simple restacking of atomically thin sheets of metallic MoS2 leads to actuators that can withstand stresses and strains comparable to or greater than other actuator materials.”

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On October 4, during the Society’s 232nd meeting, ECS will be hosting its first ever ECS Data Sciences Hack Day. This event will be ECS’s first foray into building an electrochemical data sciences and open source community from the ground up.

On this episode of the ECS Podcast, we discuss the upcoming ECS Data Sciences Hack Day, the importance of dataset sharing, how open source software can transform the field, and the future of open science.

This episode’s guests include Daniel Schwartz, Boeing-Sutter Professor of Chemical Engineering and Director of the Clean Energy Institute at the University of Washington; David Beck, Director of Research with the eSciences Institute at the University of Washington; and Matthew Murbach, president of the University of Washington ECS Student Chapter.

Schwartz, Beck, and Murbach will be at the 232nd ECS Meeting this fall in National Harbor, Maryland participating in OpenCon and running the ECS Hack Day. There’s still time to register for both of these events.

Listen to the podcast and download this episode and others for free on Apple Podcasts, SoundCloud, Podbean, or our RSS Feed. You can also find us on Stitcher and Acast.

Q&A series with ECS OpenCon 2017 speakers

Brian Nosek, co-founder of the Center for Open Science

ECS will be hosting its first ever OpenCon event on October 1 in National Harbor, MD. OpenCon will be ECS’s first, large community event aimed at creating a culture of change in how research is designed, shared, discussed, and disseminated, with the ultimate goal of making scientific progress faster.

Brian Nosek, co-founder of the Center for Open Science, will be one of the featured speakers at the upcoming ECS OpenCon.

The following conversation is part of a series with speakers from the upcoming ECS OpenCon. Read the rest of the series.

ECS: What was the “aha moment” when you knew the Center for Open Science (COS) was needed?

Brian Nosek: COS began as two laboratory projects with a minimal budget, and a simple idea of testing the reproducibility of current research and building some tools to improve it. From the start, we wanted to help build a future in which the process, content, and outcomes of research are openly accessible by default. All scholarly content would be preserved and connected and transparency would stand as an aspirational good for scholarly work. All stakeholders would be included and respected in the research lifecycle and share the pursuit of truth as the primary incentive and motivation for scholarship.

For the launch of COS, it was less “aha” and more “whoa, we can do this?” Our lab projects received some media attention. One of the outcomes of that was that a number of funders contacted us with interest in the work. In particular, the Laura and John Arnold Foundation offered to support us and provided a very generous donation to elevate our aspirations from small lab effort to nonprofit organization.

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Each year, the ECS Battery Division recognizes achievement with four awards including its Student Research Award which was established in 1979 to recognize promising young engineers and scientists in the field of electrochemical power sources.

Lin Ma’s academic career has revolved around the research of lithium-ion batteries. He began his scientific career under the supervision of Yong Yang at Xiamen University in China, where he obtained his BA (2012) in chemistry. During this time, he had accumulated relevant experience on synthesizing and characterizing typical cathode materials of lithium-ion batteries.

Ma obtained his MSc (2014) at Dalhousie University in Canada. During that time, he focused on characterizing the reactions between charged electrodes and different electrolytes at elevated temperatures using accelerating rate calorimetry. His PhD work is currently focusing on increasing energy density and lowering cost for lithium-ion batteries by developing novel electrolyte systems. This work is supervised under Jeff Dahn at Dalhousie University and exclusively sponsored by Tesla Motors/Energy. He has published 26 peer-reviewed papers and a co-authored a U.S. patent.

Ma will deliver his award talk, “A Guide to Ethylene Carbonate-Free Electrolyte Making for Li-ion Cells” on Tuesday, October 3, 2017 at 9:00 a.m. at the 232nd ECS Meeting in National Harbor.

The annual nomination deadline for the Battery Division Student Research Award is March 15.

Q&A series with ECS OpenCon 2017 speakers

Ashley Farley, open access program associate at the Bill and Melinda Gates Foundation

ECS will be hosting its first ever OpenCon event on October 1 in National Harbor, MD. OpenCon will be ECS’s first, large community event aimed at creating a culture of change in how research is designed, shared, discussed, and disseminated, with the ultimate goal of making scientific progress faster.

During ECS’s OpenCon, Ashley Farley, open access program associate at the Bill and Melinda Gates Foundation, will deliver the keynote talk, “The Importance of Open Science in a Changing Scholarly Communictions Paradigm.”

The following conversation is part of a series with speakers from the upcoming ECS OpenCon. Read the rest of the series.

ECS: Why are you interested in OpenCon?

Ashley Farley: I have greatly admired OpenCon, since I first learned about open access of scholarly communications. A critical part of any movement is a strong community and OpenCon has done an excellent job at forming and supporting a community that strives to achieve goals in the open science environment. OpenCon is particularly important to early career researchers or open access advocates starting their career and I have definitely benefited from this network. I appreciate the fact that I can give back to the OpenCon community, while still learning, engaging and partnering with others.

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Q&A series with ECS OpenCon 2017 speakers

Dan Schwartz, Boeing-Sutter Professor and director of the Clean Energy Institute at the University of Washington

ECS will be hosting its first ever OpenCon event on October 1 in National Harbor, MD. OpenCon will be ECS’s first, large community event aimed at creating a culture of change in how research is designed, shared, discussed, and disseminated, with the ultimate goal of making scientific progress faster.

During ECS’s Open Con, Dan Schwartz, director of the Clean Energy Institute at the University of Washington, will give a talk on the open science movement and academia. In addition to speaking at OpenCon, Schwartz will also co-organize the ECS Data Sciences Hack Day.

The following conversation is part of a series with speakers from the upcoming ECS OpenCon. Read the rest of the series.

ECS: When we say “data sciences,” what does this encompass?

Dan Schwartz: “Data science” is shorthand for the scientific and engineering principles that underpin efficient creation, visualization, analysis, and sharing of data. I have a conjecture—unevaluated but euphemistically called “Schwartz’s law” around here—that every PhD I graduate produce more data than the sum of all prior PhDs. Basically, each year cameras and detectors have deeper bit depth, equipment and software get more automated, more of the software tools allow data and simulation to be animated, etc. In short, both experimentalists and simulation people are seeing huge growth in data they need to analyze, visualize, and share with collaborators.

ECS: Specifically, what areas of electrochemistry and/or solid state science can most benefit from the various components of data sciences, such as open data, open source software and cloud-based computing tools, etc.?

DS: I believe we can accelerate progress and improve reproducibility of all ECS science and technology through open data, open software, and access to shared computational resources. A critical part of this is building the ECS community that establishes standards for data repositories, creates, peer evaluates, and improves software tools.

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Since its launch in 2016, ECS Plus has flourished into a widespread movement. At its forefront are leading, forward-thinking institutions that recognize the value of incentivizing open access publishing on an individual, institutional, and global scale.

ECS Plus offers institutions a competitively priced subscription package that grants access to all of the content in the ECS Digital Library, including our top-ranking, authoritative, peer-reviewed journal content, as well as free and unlimited open access publishing for affiliated authors.

Immediately following its January 2016 launch, ECS Plus acquired the National Science and Technology Library of China—a consortium then consisting of just under 800 institutions—as a subscriber. Over the subsequent months, ECS Plus saw a steady rise in subscriber count, reflecting a desire shared among institutions worldwide to make open access publishing a viable option for authors.

If data trends serve as any indication, this desire holds fast. In recent months, ECS Plus gained two new subscribers: Arizona State University and the University of Michigan. Just last month, the National Science and Technology Library of China increased its ECS Plus subscriber count from 907 to 924. The University of South Carolina recently confirmed an ECS Plus subscription for 2018.

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Safety concerns regarding lithium-ion batteries have been making headlines in light of smartphone fires and hoverboard explosions. In order to combat safety issues, at team of researchers from Drexel University, led by ECS member Yury Gogotsi, has developed a way to transform a battery’s electrolyte solution into a safeguard against the chemical process that leads to battery fires.

Dendrites – or battery buildups caused by the chemical reactions inside the battery – have been cited as one of the main causes of lithium-ion battery malfunction. As more dendrites compile over time, they can breach the battery’s separator, resulting in malfunction.

(MORE: Read more research by Gogotsi in the ECS Digital Library.)

As part of their solution to this problem, the research team is using nanodiamonds to curtail the electrochemical deposition that leads to the short-circuiting of lithium-ion batteries. To put it in perspective, nanodiamond particles are roughly 10,000 times smaller than the diameter of a single hair.

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