Edgar’s new patented process will allow for the building of better semiconductors.
Source: Kansas State University

The Electrochemical Society’s Jim Edgar has developed a new process to build better semiconductors, which will vastly improve the efficiency of electronic devices and help propel the semiconductor industry.

Edgar, a Kansas State university distinguished professor of chemical engineering and an active member of ECS since 1981, has just received a patent for his “Off-axis silicon carbide substrates” process, which is a way to build a better semiconductor. This new process could mean big things for the electronics and semiconductor manufacturing industries.

“It’s like a stacked cake separated by layers of icing,” Edgar said. “When the layers of semiconductors don’t match up very well, it introduces defects. Any time there is a defect, it degrades the efficiency of the device.”

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The tire can generate energy from friction and heat. However, Goodyear has yet to describe the materials to be used.
Image: YouTube/Goodyear

There’s no question that engineers and manufacturers around the world are moving away from the fuel-based car to the electric vehicle. In order to make these cars possible, they must improve in efficiency. Now, one company is looking outside the box for the answer to electric car sustainability.

Goodyear has just announced the concept of their new tire, which will harvest heat in a variety of ways to help power electric vehicles. The new BH-03 tire is poised to be able to absorb heat while static due to the ultra-black texture of the tire, as well as take advantage of the natural occurrence of friction as the tire moves.

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The integration of silk into the lithium-ion battery allowed the battery to work for over 10,000 cycles with only a nine percent loss in stability.
Image: ACS Nano

The words “lithium-ion” and “battery” have become almost synonymous recently. While the li-ion battery is used in a multitude of applications, it still does not have a long life without a recharge.

Now, researchers have developed an environmentally friendly way to boost the performance of the li-ion battery by focusing on a material derived from silk.

In the li-ion battery, carbon is the key component for storage. In most situations, graphite takes that role – but it has limited energy capacity. In order to improve the performance of the li-ion battery, researchers looked to replace graphite with a material developed using a sustainable source.

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Synthesizing the material as a thin film instead of as a bulk powder opens up new possibilities for fuel cell technology.
Image: A. Gutiérrez-Llorente/Cornell University

Researchers from Cornell University have developed a way to synthesize a new thin-film catalyst to improve efficiency and effectiveness in fuel cells.

For the first time ever, researchers were able to explain the epitaxial thin-film growth of a fundamental electrode component of the fuel cell, which could result in a more effective cathode.

“Up to now, research on oxygen catalysts in thin film form for clean-energy applications has been focused on the perovskite-structured oxides and their structural derivatives,” said lead researcher Araceli Gutierrez-Llorente. “The much less studied cubic pyrochlore structure is an appealing alternative to perovskites for such applications as fuel cell cathodes.”

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Ningde Amperex Technology Ltd. (ATL, China) is announcing a funding opportunity for researchers actively engaged in rechargeable lithium battery technologies. They are offering $100,000-$500,000 to selected projects addressing current problems associated with lithium metal anodes and proposing viable solutions for the commercialization of long-life, high-performance lithium metal secondary batteries for high energy density applications.

The steep demand for improved rechargeable batteries for use in consumer electronics and electric vehicles is driving the search for new battery electrode materials that will achieve higher energy densities. This funding opportunity seeks to develop scalable technologies for improving the performance of lithium metal anodes.

Please submit technical proposals along with a budget justification, confidentiality disclaimer and a cover page identifying the principle investigator, contact information, affiliations, project duration, total funding requested and submission date to Dr. KaiFu Zhong.

The deadline for submissions is July 31, 2015.

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The ECS Battery Division is now accepting award nominations.

Please help recognize outstanding contributions of The Electrochemical Society members to the science and technology of primary and secondary batteries and fuel cells through the Battery Division Awards Program.

Nominations are now being accepted for:

• Battery Division Research Award
• Battery Division Technology Award
• Battery Division Student Research Award

These annual awards have been established by the Division to encourage excellence in battery and fuel cell R&D, recognize promising young engineers and scientists and encourage their publication in the publications of the Electrochemical Society.

The deadline for nominations is March 30, 2015.

Before applying, please review the award rules and complete the appropriate form.

I strongly encourage you to submit your nominations. Thank you.

With my best regards,

Robert Kostecki
ECS Battery Division, Chair

Researchers have investigated a strategy to prevent this “polysulfide shuttling” phenomenon by creating nano-sized sulfur particles, and coating them in silica (SiO₂), otherwise known as glass.
Image: Nanoscale

Lithium-sulfur has been a hot topic in battery technology recently. Because of its ability to produce 10 times the amount of energy as a conventional battery, we’ve seen novel innovations such as the all solid state lithium-sulfur battery. Now, the li-sulfur battery is getting a glass coating to further improve its performance.

Researchers at the University of California, Riverside have applied a glass cage-like coating, along with graphene oxide, to the li-sulfur battery. This innovation was developed in order to overcome one of the major issues in commercializing the battery – polysulfides, which cause the battery’s capacity to decrease over its lifetime.

The cathode material traps the polysulfides in a very thin glass cage. Researchers used an organic precursor to construct the trapping barrier.

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When it comes to battery research and technology, people are constantly looking toward the lithium-ion battery to see the next big breakthrough. However, researchers at the chemical company BASF are showcasing and older battery type as a strong competitor against the li-ion.

BASF researchers are taking the nickel-metal hydride battery (NiMH) and giving it a boost to lead to cheaper electric cars. The assumption for electric car makers it that improvements in the lithium-ion battery will make cars cheaper and extend their driving range. While that may be true, the NiMH may also be able to do this with a little improvement.

The chemical company has already been able to double the amount of energy these old battery types can store, thus making them comparable to the lithium-ion. Researchers also state that there is still much room for improvement – with the potential to increase energy storage by an additional eight times.

Further, the batteries are set to cost roughly half as much as the cheapest lithium-ion battery.

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The newly developed silicon nanofiber structure allows the battery to be cycled hundreds of times without significant degradation.
Image: Nature Scientific Reports

Electric cars and personal electronics may get the battery boost they need with this new development in lithium-ion batteries.

Researchers from the University of California, Riverside have created silicon nanofibers that are 100 times thinner than human hair, which will provide the potential to boost the amount of energy that can be delivered per unit weight of the batteries.

The research has been detailed in the paper “Towards Scalable Binderless Electrodes: Carbon Coated Silicon Nanofiber Paper via Mg Reduction of Electrospun SiO₂ Nanofibers.”

This from University of California, Riverside:

The nanofibers were produced using a technique known as electrospinning, whereby 20,000 to 40,000 volts are applied between a rotating drum and a nozzle, which emits a solution composed mainly of tetraethyl orthosilicate (TEOS), a chemical compound frequently used in the semiconductor industry. The nanofibers are then exposed to magnesium vapor to produce the sponge-like silicon fiber structure.

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Many of the most influential people of our time are also the most obscure. Take John Goodenough, for example. While he may not be a household name, everyday devices such as laptops and smartphones exist because of his work on lithium-ion batteries.

But even in his 90s, Goodenough isn’t done yet. He’s already invented the lithium-ion’s nervous system, which houses the cobalt-oxide cathode. This is the most important part of every lithium-ion battery, but Goodenough isn’t satisfied with this major scientific feat. Now, he’s looking to go one step further.

This from Quartz:

Today, at 92, Goodenough still goes to his smallish office every day at the University of Texas at Austin. That, he says, is because he’s not finished. Thirty-five years after his blockbuster, the electric car still can’t compete with the internal combustion engine on price. When solar and wind power produce electricity, it must be either used immediately or lost forever—there is no economic stationary battery in which to store the power. Meanwhile, storm clouds are gathering: Oil is again cheap but, like all cyclical commodities, its price will go back up. The climate is warming and becoming generally more turbulent.

Essentially, Goodenough is looking to create a super-battery.

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