High-quality mono-silicon crystal grown at low cost for solar cells

A joint research team in Japan has developed a “single-seed cast method,” a new casting method making it possible to grow high-quality mono silicon at low cost. New casting method may facilitate the return of a market-competitive solar cell industry.

New cathode material creates possibilities for sodium-ion batteries

The inventor of the lithium-ion battery, and his team of researchers, have identified a new cathode material made of the nontoxic and inexpensive mineral eldfellite for sodium-ion batteries.

Fishing vessel transformed into a wave power plant

Researchers are demonstrating that it is possible for a redundant fishing vessel to be used as a power plant. The first vessel of its kind is now anchored offshore in the Stadthavet area west in Norway, with the aim of generating electricity from the natural forces of the sea.

Can you actually hear ‘inaudible’ sound?

Are wind farms harmful to humans? This controversial topic makes emotions run high. To give the debate more objectivity, an international team of experts dealt with the fundamentals of hearing in the lower limit range of the audible frequency range (i.e., infrasound), but also in the upper limit range (i.e., ultrasound).

Solar water splitting: Putting an extra ‘eye’ on surface reactions that store sunlight as fuel

Water-splitting cells absorb sunlight and produce fuel. Creating such cells means pairing a material to absorb sunlight and generate electrons with the one that uses those electrons to produce fuel. Scientists introduced a novel way to study the flow of electrons where the materials meet.

Next-gen pacemakers may be powered by unlikely source: The heart

Researchers are developing technology to make pacemakers battery-free. The advancement is based upon a piezoelectric system that converts vibrational energy — created inside the chest by each heartbeat — into electricity to power the pacemaker.

Electric cars: Batteries with brains

The battery is the heart of the electric car. Researchers have developed an energy storage device which is significantly more cost-effective over the entire life cycle in comparison with previous models. If one of the more than one hundred battery cells is defective, it can be replaced easily. Until now, the entire battery had to be replaced.