News tagged with electrodes

One step closer to low cost solar cells

The dwindling resources for conventional energy sources make renewable energy an exciting and increasingly important avenue of research. However, even seemingly new and green forms of energy production, like ...

Jan 27, 2014
4.5 / 5 (12) 0 | with audio podcast

Batteries as they are meant to be seen

Researchers have developed a way to microscopically view battery electrodes while they are bathed in wet electrolytes, mimicking realistic conditions inside actual batteries. While life sciences researchers ...

Dec 26, 2013
4.9 / 5 (14) 0 | with audio podcast

Composite battery boost

(Phys.org) —New composite materials based on selenium (Se) sulfides that act as the positive electrode in a rechargeable lithium-ion (Li-ion) battery could boost the range of electric vehicles by up to ...

Dec 04, 2013
4.9 / 5 (24) 2 | with audio podcast

Extracting energy from bacteria

Most of us wouldn't consider bacteria a promising energy source of the future. That would be shortsighted, says Leonard Tender, a microbial-electrochemist at the Naval Research Laboratory in Washington, D.C., who believes ...

Oct 29, 2013
4 / 5 (1) 0

Inexpensive material boosts battery capacity

Battery-powered cars offer many environmental benefits, but a car with a full tank of gasoline can travel further. By improving the energy capacity of lithium-ion batteries, a new electrode made from iron ...

Oct 23, 2013
4.4 / 5 (16) 0 | with audio podcast

Why lithium-ion-batteries fail

Materials in lithium ion battery electrodes expand and contract during charge and discharge. These volume changes drive particle fracture, which shortens battery lifetime. A group of ETH scientists together ...

Oct 17, 2013
4.6 / 5 (24) 0 | with audio podcast

Superbugs make green energy from black waste

A costly health problem facing countries all over the world – petroleum contamination of groundwater – could soon be tackled by armies of the world's tiniest inhabitants turning toxic waste into green electricity.

Sep 18, 2013
4.5 / 5 (2) 0