News tagged with ions

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

Pulp friction cleans up 'Brockovich' chemical

A byproduct of the manufacture of pulp using the sulfite process for making paper, sodium lignosulfonate, can be used to immobilize and soak up toxic chromium compounds from soil and water, according to research published ...

Oct 10, 2013
3 / 5 (1) 0

Spinach and nanodiamonds?

Popeye, the comic book hero, swears by it as do generations of parents who delight their children with spinach. Of course, today it is known that the vegetable is not quite as rich in iron as originally thought, ...

Oct 03, 2013
5 / 5 (2) 1