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.

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A new method to quickly produce fibers from carbon nanotubes is both handmade and high tech.

The method allows researchers to make short lengths of strong, conductive fibers from small samples of bulk nanotubes in about an hour.

In 2013, Rice University chemist Matteo Pasquali found a way to spin full spools of thread-like nanotube fibers for aerospace, automotive, medical, and smart-clothing applications. The fibers look like cotton thread but perform like metal wires and carbon fibers.

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Do you know of an organization that is hiring? Are you connected with recruiters or managers looking to fill positions? You now have a unique opportunity to help ECS work towards engaging employers through our ECS Career Expo.

The ECS Career Expo is being hosted at the 233rd ECS Meeting in Seattle, WA from May 14-16, 2018 in the exhibit hall. Hiring managers and recruiters are able to showcase their organizations to more than 2,000 anticipated meeting attendees in an exclusive exhibit booth area.

The ECS Career Expo helps to support the mission of ECS in advancing the science. Take a moment and send recruiter or hiring manager contact information to Shannon Reed, director of membership services: Shannon.Reed@electrochem.org.

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Extended deadline: February 12, 2018

On behalf of the ECS Corrosion Division, you are invited to nominate qualified candidates for the following award:

Herbert H. Uhlig Award was established in 1972 to recognize excellence in corrosion research and outstanding technical contributions to the field of corrosion science and technology. The award consists of a framed certificate and a $1,500 prize. The next award winner will be recognized at the 234th ECS Meeting, as part of AiMES 2018, which takes place in Cancun, Mexico September 30 – October 4.

The 2017 winner of this award was Herman Terryn of Vrije Universiteit Brussel Belgium who presented an award talk called Advanced Experimental and Modelling Approaches to Understand and Predict Better Corrosion of Metals.

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The 2018 Society elections are upon us and ECS wants you to learn more about the candidates from the candidates.

About ECS elections

The early months of each year are an exciting time here at ECS as officer elections take place via electronic proxy in the two-month period from January 15 to March 15, 2018. Elected officers constitute the organization’s executive committee and include the following positions: president, three vice presidents, secretary and treasurer. The nominating committee determines the candidates and you determine the winner.

Three Questions with the Candidates allows you a personal glimpse of each volunteer on the current ballot. There is a total of five candidates (one for president and two each for vice president and treasurer). Take a moment to read the full candidate biography and election statement. And then enjoy their reflections on ECS and the marvel that is science.

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Extended Deadline: February 16, 2018

The ECS honors and awards program promotes technical achievements in electrochemistry and solid-state science and technology. The program also recognizes exceptional service to the Society. Recognition opportunities exist in the following categories: Society awards, division awards and section awards.

You are invited to nominate qualified candidates for the following section award.

The Daniel Cubicciotti Student Award was established in 1994 to assist a deserving northern California student to pursue a career in the physical sciences or engineering. Qualified candidates will be a full-time or part-time graduate or advanced undergraduate student in good standing at a university or college in northern California. The award consists of an etched metal plaque and a $2,000 prize which is intended to assist with the educational expenses. In addition to the main award, up to two other students (honorable mentions) will receive a framed certificate and a $500 prize. The next award winners will be recognized at the San Francisco Section annual meeting in spring 2018.

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Join us as ECS and SMEQ comes together for the AiMES 2018 International Meeting at the Moon Palace in Cancun, Mexico from September 30 to October 4, 2018!

AiMES 2018, a joint international meeting between ECS and SMEQ, will bring together scientists, engineers, and researchers from academia, industry, and government laboratories to share results and discuss issues on related topics through a variety of formats such as; oral presentations, poster sessions, panel discussions, tutorial sessions, short courses, professional development workshops, a career fair, and exhibits.

In addition to long running symposia on PEFC&E, Li-ion batteries, molten salts, photovoltaics, SiGe, MEMS/NEMS, thin film transistors, atomic layer deposition, and semiconductors, AiMES 2018 will also explore newer areas such as; wearable sensors; the contamination of water, soil, and air; 3D chip packaging; metal organic frameworks (MOFs); and battery safety.

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Adding a little ultrathin hexagonal boron nitride to ceramics could give them outstanding properties, according to new research.

Rouzbeh Shahsavari, an assistant professor of civil and environmental engineering at Rice University, suggests the incorporation of ultrathin hBN sheets between layers of calcium-silicates would make an interesting bilayer crystal with multifunctional properties.

These could be suitable for construction and refractory materials and applications in the nuclear industry, oil and gas, aerospace, and other areas that require high-performance composites.

Combining the materials would make a ceramic that’s not only tough and durable but resistant to heat and radiation. By Shahsavari’s calculations, calcium-silicates with inserted layers of two-dimensional hBN could be hardened enough to serve as shielding in nuclear applications like power plants.

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Researchers have found an explanation for why a certain class of quantum dots shines with such incredibly bright colors.

The nanocrystals in question contain caesium lead halide compounds arranged in a perovskite lattice structure. Three years ago, Maksym Kovalenko, a professor at ETH Zurich and the Swiss Federal Laboratories for Materials Science and Technology (Empa), succeeded in creating nanocrystals from the same semiconductor material.

“These tiny crystals have proved to be extremely bright and fast emitting light sources, brighter and faster than any other type of quantum dot studied so far,” says Kovalenko.

By varying the composition of the chemical elements and the size of the nanoparticles, Kovalenko also  produced a variety of nanocrystals that light up with the colors of the entire visible spectrum. These quantum dots could be used as components for future light-emitting diodes (LEDs) and displays.

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One year ago, the Chinese government’s energy agency made a long-term commitment to the development of renewable energy sources, investing more than $360 billion in an effort to shift away from coal-powered energy. Now, the country is following through on those promises, paving the way to becoming the global leader in the overall development of clean energy technology.

According to a new report from the Institute of Energy Economics and Financial Analysis (IEEFA), China has continued to grow its clean energy sector in 2017, installing over 50 GW of solar-powered generation.

“The clean energy market is growing at a rapid pace and China is setting itself up as a global technology leader while the U.S. government looks the other way,” said Tim Buckley, co-author of the report. “Although China isn’t necessarily intending to fill the climate leadership void left by the U.S. withdrawal from Paris, it will certainly be very comfortable providing technology leadership and financial capacity so as to dominate fast-growing sectors such as solar energy, electric vehicles, and batteries.”

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