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2014

AllCell Technologies working on advanced EV battery development

AllCell Technologies, producer of safe and long-lasting lithium-ion batteries, is working on a program led by Stanford University to develop advanced electric vehicle (EV) batteries through an ARPA-E grant.

Flexible carbon nanotubes made more reliable and efficient

Engineers would love to create flexible electronic devices, such as e-readers that could be folded to fit into a pocket. One approach involves designing circuits based on electronic fibers, known as carbon nanotubes (CNTs), instead of rigid silicon chips.

Research could help engineers design better electrodes for batteries

The electrochemical reactions inside the porous electrodes of batteries and fuel cells have been described by theorists, but never measured directly. Now, a team at MIT has figured out a way to measure the fundamental charge transfer rate — finding some significant surprises.

Smart Window material may make better batteries

High-tech "smart windows," which darken to filter out sunlight in response to electric current, function much like batteries. Now, X-ray studies provide a crystal-clear view into how the color-changing material in these windows behaves in a working battery - information that could benefit next-generation rechargeable batteries.

Pomegranate-inspired design solves problems for lithium-ion batteries

An electrode designed like a pomegranate - with silicon nanoparticles clustered like seeds in a tough carbon rind - overcomes several remaining obstacles to using silicon for a new generation of lithium-ion batteries, say its inventors.

Engineers show how to optimize carbon nanotube arrays for hot spots

Experimental evidence and computer simulations suggest how to grow structures with the best trade offs between three desired characteristics: strength, flexibility and the ability to dissipate heat.

Transparent display system could provide heads-up data

Transparent displays have a variety of potential applications — such as the ability to see navigation or dashboard information while looking through the windshield of a car or plane, or to project video onto a window or a pair of eyeglasses.

World's fastest organic transistor

Teams collaborate to make thin, transparent semiconductors that could become the foundation for cheap, high-performance displays.

Scientists cook up new electronic material

Scientists grew sheets of an exotic material in a single atomic layer and measured its electronic structure for the first time.

2013

Solar sails to power CubeSats for space exploration

Two tiny, cube-shaped research satellites hitched a ride to Earth orbit to validate new hardware and software technologies for future NASA Earth-observing instruments.

Heat-resistant materials to improve solar cell efficiency

Scientists have created a heat-resistant thermal emitter, an element used in specialized solar cells, that could significantly improve the efficiency of the cells.

Scientists invent self-healing battery electrode

Researchers have made the first battery electrode that heals itself, opening a new and potentially commercially viable path for making the next generation of lithium ion batteries for electric cars, cell phones and other devices.

Cure for crack-prone high-capacity batteries

Researchers have shown that mixing silicon microparticles with self-healing polymers helps prevent a longer-lasting battery from failing.

A major advance in thermophotovoltaics

Scientists have created a heat-resistant thermal emitter, an element used in specialized solar cells, that could significantly improve the efficiency of the cells.

Stanford engineers build basic computer using carbon nanotubes

Unprecedented feat points toward a new generation of energy-efficient electronics.

Wired microbes generate electricity from sewage

Engineers have devised a new way to generate electricity from sewage using naturally-occurring "wired microbes" as mini power plants, producing electricity as they digest plant and animal waste.

Scientists publish theory, formula to improve plastic semiconductors

The first theoretical framework that includes molecular-level structural inhomogeneity, seeking to understand, predict and improve the conductivity of semiconducting polymers.

Scientists calculate the energy required to store wind and solar power

Renewable energy holds the promise of reducing carbon dioxide emissions. But there are times when solar and wind farms generate more electricity than is needed by consumers.

Improvement in the performance of plastic solar cells

Scientists have spent decades trying to build flexible plastic solar cells efficient enough to compete with conventional cells made of silicon.

Disorder improves performance of plastic solar cells

Scientists have spent decades trying to build flexible plastic solar cells efficient enough to compete with conventional cells made of silicon.

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