tag: Chalmers

Power/Performance Bits: Apr. 10
By Jesse Allen - 10 Apr, 2018 - Comments: 0

Lithium-air battery Researchers at the University of Illinois at Chicago and Argonne National Laboratory designed a new lithium-air battery that works in a natural air environment and still functioned after 750 charge/discharge cycles, a record for this battery type. In theory, lithium-air batteries work by combining lithium present in the anode with oxygen from the air to produce lithium p... » read more

Power/Performance Bits: May 17
By Jesse Allen - 17 May, 2016 - Comments: 0

Shrinking perovskites Researchers from Imperial College London, Oxford University, Diamond Light Source, Pohang University of Science and Technology in Korea, and Rutgers University have discovered a material that can be chemically tailored to either expand or contract in a precise way and over a wide temperature range. This could lead to new composite materials that do not expand when heate... » read more

Power/Performance Bits: July 14
By Jesse Allen - 14 Jul, 2015 - Comments: 0

Photo-doping semiconductors Scientists at Michigan State University found that by shooting an ultrafast laser pulse into a semiconducting material, its properties would change as if it had been chemically doped, in a process known as photo-doping. "The material we studied is an unconventional semiconductor made of alternating atomically thin layers of metals and insulators," said Chong-Yu... » read more

Power/Performance Bits: June 23
By Jesse Allen - 23 Jun, 2015 - Comments: 0

Printing 3D circuits from wood Researchers at Chalmers created three-dimensional objects made entirely of cellulose for the first time with the help of a 3D-bioprinter. They also added carbon nanotubes to create electrically conductive material. The difficulty using cellulose derived from wood in additive manufacturing is that cellulose does not melt when heated. Therefore, the 3D printer... » read more

Power/Performance Bits: Feb. 3
By Jesse Allen - 03 Feb, 2015 - Comments: 0

Bulletproof vests for batteries It was almost two years ago that the Boeing Dreamliner was grounded because of fires caused by its lithium-ion batteries. Now researchers at the University of Michigan have used nanofibers extracted from Kevlar, best known as the material in bulletproof vests, to create a new barrier between the electrodes in a lithium-ion battery. Lithium atoms in batterie... » read more

Manufacturing Bits: Sept. 16
By Mark LaPedus - 16 Sep, 2014 - Comments: 0

Making sounds with atoms What is the sound of one hand clapping? Perhaps a better question is what is the sound of an atom? Chalmers University of Technology has demonstrated the ability to make a sound with an atom. More specifically, researchers have made acoustic waves with an artificial atom. In doing so, researchers have demonstrated quantum physics with sound taking on the role of lig... » read more

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