tag: batteries

Power/Performance Bits: Jan. 10
By Jesse Allen - 10 Jan, 2017 - Comments: 0

Antiferromagnetic magnetoelectric RAM Researchers at Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Swiss Nanoscience Institute, and the University of Basel developed a concept for a new, low power memory chip. In particular, the group focused on finding an alternative to MRAM using magnetoelectric antiferromagnets, which are activated by an electrical voltage rather than by a current. "... » read more

Power/Performance Bits: Jan. 3
By Jesse Allen - 03 Jan, 2017 - Comments: 0

Paper-based bacteria battery Researchers at Binghamton University, State University of New York have created a bacteria-powered battery on a single sheet of paper that can power disposable electronics. The manufacturing technique reduces fabrication time and cost, and the design could revolutionize the use of bio-batteries as a power source in remote, dangerous and resource-limited areas. ... » read more

Power/Performance Bits: Dec. 27
By Jesse Allen - 27 Dec, 2016 - Comments: 0

Tiny diamond radio Researchers at Harvard built the world's smallest radio receiver, built out of an assembly of atomic-scale defects in pink diamonds. The radio uses tiny imperfections in diamonds called nitrogen-vacancy (NV) centers. To make NV centers, researchers replace one carbon atom in a diamond crystal with a nitrogen atom and remove a neighboring atom -- creating a system that i... » read more

Power/Performance Bits: Dec. 20
By Jesse Allen - 20 Dec, 2016 - Comments: 0

Stamping with electronic ink Engineers at MIT fabricated a stamp made from carbon nanotubes that is able to print electronic inks onto rigid and flexible surfaces. The team's stamping process should be able to print transistors small enough to control individual pixels in high-resolution displays and touchscreens, said A. John Hart, associate professor of contemporary technology and mecha... » read more

Power/Performance Bits: Nov. 23
By Jesse Allen - 23 Nov, 2016 - Comments: 0

Increasing lithium battery density Researchers at Columbia University developed a new method to increase the energy density of lithium batteries using a trilayer structure that is stable in ambient air. "When lithium batteries are charged the first time, they lose anywhere from 5-20% energy in that first cycle," said Yuan Yang, assistant professor of materials science and engineering at C... » read more

Power/Performance Bits: Nov. 8
By Jesse Allen - 08 Nov, 2016 - Comments: 0

Scrap metal batteries A research team at Vanderbilt University used scraps of steel and brass - two of the most commonly discarded materials - to create a steel-brass battery that can store energy at levels comparable to lead-acid batteries while charging and discharging at rates comparable to ultra-fast charging supercapacitors. The researchers found that when scraps of steel and brass a... » read more

Power/Performance Bits: Nov. 1
By Jesse Allen - 01 Nov, 2016 - Comments: 0

New approach to switches According to the National Resource Defense Council, Americans waste up to $19 billion annually in electricity costs due to always-on digital devices in the home that suck power even when they are turned off. With that in mind, a team from University of Utah devised a new kind of switch for electronic circuits that uses solid electrolytes such as copper sulfide to ... » read more

Power/Performance Bits: Aug. 23
By Jesse Allen - 23 Aug, 2016 - Comments: 0

Connecting implanted devices University of Washington researchers developed a new method for communication between devices such as brain implants, contact lenses, credit cards and smaller wearable electronics with other devices such as smartphones and watches. Using only reflections, an interscatter system requires no specialized equipment, relying solely on mobile devices to generate Wi-... » read more

Power/Performance Bits: Aug. 16
By Jesse Allen - 16 Aug, 2016 - Comments: 0

Dissolving batteries Researchers at Iowa State University developed a self-destructing lithium-ion battery capable of delivering 2.5 volts and dissolving or dissipating in 30 minutes when dropped in water. The battery can power a desktop calculator for about 15 minutes. Making such devices possible is the goal of a relatively new field of study called "transient electronics." These transi... » read more

Power To The People (Right On…)
By Mike Gianfagna - 30 Jun, 2016 - Comments: 0

If you’re the right age (or older), you will immediately think of John Lennon when you read the title of this piece.  The song was released in 1971, so I will cut many of you some slack on that. The title was inspired by several pieces of research that I was fortunate enough to be exposed to this past week. I am currently in Vancouver, British Columbia at the NEWCAS conference. NEWCAS... » read more

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