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Neutrons explain aging process in lithium ion batteries
19-Nov-2015 - A key issue with lithium ion batteries is aging. It significantly reduces their potential storage capacity. To date, very little is known about the causes of the aging effects. Scientists from the Department of Technical Electrochemistry and the Research Neutron Source FRM II at the Technical ...
Environmentally friendly
17-Nov-2015 - High-performance lithium ion batteries face a major problem: Lithium will eventually start to run out as batteries are deployed in electric cars and stationary storage units. Researchers from Empa and ETH Zurich have now discovered an alternative: the “fool’s gold battery”. It consists of iron, ...
13-Nov-2015 - If you add quantum dots - nanocrystals 10,000 times smaller than the width of a human hair - to a smartphone battery it will charge in 30 seconds, but the effect only lasts for a few recharge cycles. However, a group of researchers at Vanderbilt University found a way to overcome this problem: ...
Lithium ion batteries operate longer and faster when treated with hydrogen.
09-Nov-2015 - Lithium ion batteries (LIBs) are a class of rechargeable battery types in which lithium ions move from the negative electrode to the positive electrode during discharge and back when charging. The growing demand for energy storage emphasizes the urgent need for higher-performance batteries. ...
03-Nov-2015 - Scientists have developed a working laboratory demonstrator of a lithium-oxygen battery which has very high energy density, is more than 90% efficient, and, to date, can be recharged more than 2000 times, showing how several of the problems holding back the development of these devices could be ...
28-Oct-2015 - Substantially smaller and longer-lasting batteries for everything from portable electronic devices to electric cars could be come a reality thanks to an innovative technology developed by University of Waterloo researchers. Zhongwei Chen, a chemical engineering professor at Waterloo, and a team ...
06-Oct-2015 - In the truest sense, it’s all about watts at the Dresden-based Fraunhofer Institute for Ceramic Technologies and Systems IKTS and the Aachen-based Fraunhofer Institute for Laser Technology ILT. The joint project “DRYLAS - Laser-based Drying of Battery Electrode Slurries” focusses on the ...
05-Oct-2015 - Don't go sticking your electronic devices in a toaster oven just yet, but for a longer-lasting battery, you might someday heat them up when not in use. Over time, the electrodes inside a rechargeable battery cell can grow tiny, branch-like filaments called dendrites, causing short circuits that ...
A detailed nano-mechanical study of mechanical degradation processes in silicon structures
28-Sep-2015 - A detailed nano-mechanical study of mechanical degradation processes in silicon structures containing varying levels of lithium ions offers good news for researchers attempting to develop reliable next-generation rechargeable batteries using silicon-based electrodes. Anodes based on silicon can ...
04-Aug-2015 - Using a hybrid silica sol-gel material and self-assembled monolayers of a common fatty acid, researchers have developed a new capacitor dielectric material that provides an electrical energy storage capacity rivaling certain batteries, with both a high energy density and high power density. If ...
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