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28 Current news about the topic batteries

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Chemists develop MRI-like technique to detect what ails batteries

04-May-2018

A team of chemists has developed an MRI-based technique that can quickly diagnose what ails certain types of batteries--from determining how much charge remains to detecting internal defects--without opening them up. "The use of alternative energy and electrically powered vehicles will further ...

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New technology could wean the battery world off cobalt

13-Apr-2018

Lithium-based batteries use more than 50 percent of all cobalt produced in the world. These batteries are in your cell phone, laptop and maybe even your car. About 50 percent of the world's cobalt comes from the Congo, where it's largely mined by hand, in some instances by children. But now, a ...

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Perovskite-based solar cells boosted by potassium

23-Mar-2018

A simple potassium solution could boost the efficiency of next-generation solar cells, by enabling them to convert more sunlight into electricity. An international team of researchers led by the University of Cambridge found that the addition of potassium iodide 'healed' the defects and ...

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A new type of powerful battery

Move over, lithium-ion - now, there's a better battery on the horizon

07-Feb-2018

A multi-institution team of scientists led by Texas A&M University chemist Sarbajit Banerjee has discovered an exceptional metal-oxide magnesium battery cathode material, moving researchers one step closer to delivering batteries that promise higher density of energy storage on top of ...

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Batteries with better performance and improved safety

28-Nov-2017

Phones, laptops, electric cars - batteries are everywhere. And to meet the expectations of today's consumers, these batteries are increasin­gly lighter, more powerful and designed to last longer. Currently the core technology for these applications is lithium ion batteries. But the technology is ...

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Electrode materials from the microwave oven

Novel process for producing high-voltage cathodes for lithium-ion batteries

19-Oct-2017

Power on the go is in demand: The higher the battery capacity, the larger the range of electric cars and the longer the operating time of cell phones and laptops. Dr. Jennifer Ludwig of the Technical University of Munich (TUM) has developed a process that allows a fast, simple, and cost-effective ...

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Paper-based supercapacitor uses metal nanoparticles to boost energy density

09-Oct-2017

Using a simple layer-by-layer coating technique, researchers from the U.S. and Korea have developed a paper-based flexible supercapacitor that could be used to help power wearable devices. The device uses metallic nanoparticles to coat cellulose fibers in the paper, creating supercapacitor ...

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Flexible rechargeable batteries for pacemakers

14-Sep-2017

Experts at Queen’s University Belfast have designed a flexible and organic alternative to the rigid batteries that power up medical implants. Currently, devices such as pacemakers and defibrillators are fitted with rigid and metal based batteries, which can cause patient discomfort. Dr Geetha ...

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Inexpensive organic material gives safe batteries a longer life

21-Jun-2017

Modern batteries power everything from cars to cell phones, but they are far from perfect - they catch fire, they perform poorly in cold weather and they have relatively short lifecycles, among other issues. Now researchers from the University of Houston have described a new class of material ...

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Sodium and magnesium to replace lithium in batteries

03-May-2017

A project supported by the Swiss National Science Foundation (SNSF) aims to find new materials which can be used in rechargeable batteries and eventually provide alternatives to the current lithium batteries. Lithium-based batteries have several drawbacks, such as the limited availability of the ...

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