La creciente demanda de tecnologías de energía limpia está impulsando la producción de baterías de litio , que se utilizan en todo, desde vehículos eléctricos hasta sistemas de almacenamiento de energía. Tanto es así que se proyecta que su demanda se multiplicará por nueve para 2040
People with severe motor disabilities are testing a new way to interact with the world—using a robot controlled by brain signals.
An experimental telepresence robot created by Italian and Swiss researchers uses its own smarts to make things easier for the person using it, a system dubbed shared control. The user tells the robot where to go via a brainwave-detecting headset, and the robot takes care of details like avoiding obstacles and determining the best route forward.
The robot is essentially a laptop mounted on a rolling base—the user sees the robot’s surroundings via the laptop’s webcam, and can converse with people over Skype.
Le prototype nouveau-né de batterie au graphène présente des performances plus élevées de 25% par rapport aux dispositifs de stockage d'électricité actuellement en utilisation. L'utilisation d'une solution (ou encre) de graphène appliqué sur un support de cuivre pour former l'anode s'est révélée particulièrement utile pour obtenir des performances très élevées.
An experimental lithium-ion battery based on materials developed at a U.S. Department of Energy lab stores twice as much energy as the batteries used in most electric cars.
If the technology can be commercialized, it could give affordable electric cars a range of over 200 miles per charge, says Hal Zarem, CEO of Seeo, a startup that’s working on the technology. Today the cheapest electric cars, which cost around $30,000, typically have a range of less than 100 miles.
Alternatively, the improved storage capacity could be used to cut the size of battery packs in half while maintaining the current driving range, making electric vehicles considerably cheaper. A conventional battery pack with a range of 100 miles costs roughly $10,000.
