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139 Current news about the topic electrodes

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New room-temperature liquid-metal battery could be the path to powering the future

A mixture of liquid and solid state batteries

09-Jul-2020

Researchers in the Cockrell School of Engineering at The University of Texas at Austin have built a new type of battery that combines the many benefits of existing options while eliminating their key shortcomings and saving energy. Most batteries are composed of either solid-state electrodes, ...

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New NiMH batteries perform better when made from recycled old NiMH batteries

Recycling of rechargeable hydride batteries may be easier with a new method

03-Jun-2020

A new method for recycling old batteries can provide better performing and cheaper rechargeable hydride batteries (NiMH) as shown in a new study by researchers at Stockholm University. "The new method allows the upcycled material to be used directly in new battery production," says Dag Noréus, ...

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Electrolysis: How to produce better electrodes

Another step forward for renewable energies: The production of green hydrogen could be even more efficient in the future

15-May-2020

By applying an unusual process step, chemists at Martin Luther University Halle-Wittenberg (MLU) have found a way to treat inexpensive electrode materials and considerably improve their properties during electrolysis. Hydrogen is thought to be the solution to the storage problem of renewable ...

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Development of attachable sticker-type rechargeable batteries

15-Apr-2020

Dr. Yoon Hana at Energy Conversion & Storage Materials Laboratory of Korea Institute of Energy Research (KIER, President Kim Jong-nam), Professor Kim Young-Jin (Dept. of Mechanical Engineering, Korea Advanced Institute of Science and Technology) and Professor Kim Seungchul (Dept. of Optics and ...

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Fast-charging, long-running, bendy energy storage breakthrough

Imagine needing only ten minutes to fully-charge your electric car

20-Feb-2020

A new bendable supercapacitor made from graphene, which charges quickly and safely stores a record-high level of energy for use over a long period, has been developed and demonstrated by UCL and Chinese Academy of Sciences researchers. While at the proof-of-concept stage, it shows enormous ...

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Catalyst deposition on fragile chips

17-Feb-2020

Electrocatalysts can help to obtain chemicals from renewable raw materials or to use alternative energy sources. But testing new catalysts brings challenges. Researchers at the Ruhr-Universität Bochum (RUB) and the University of Duisburg-Essen have developed a new method of depositing catalyst ...

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Using neutrons and X-rays to analyse the ageing of lithium batteries

11-Feb-2020

An international team has used neutron and X-ray tomography to investigate the dynamic processes that lead to capacity degradation at the electrodes in lithium batteries. Using a new mathematical method, it was possible to virtually unwind electrodes that had been wound into the form of a compact ...

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A new method to study lithium dendrites could lead to better, safer batteries

14-Jan-2020

Lithium ion batteries often grow needle-like structures between electrodes that can short out the batteries and sometimes cause fires. Now, an international team of researchers has found a way to grow and observe these structures to understand ways to stop or prevent their appearance. "It is ...

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Electric Cloth: Flexible, wearable supercapacitors based on porous nanocarbon nanocomposites

22-Oct-2019

Evening gowns with interwoven LEDs may look extravagant, but the light sources need a constant power supply from devices that are as well wearable, durable, and lightweight. Chinese scientists have manufactured fibrous electrodes for wearable devices that are flexible and excel by their high ...

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'Nanochains' could increase battery capacity, cut charging time

23-Sep-2019

How long the battery of your phone or computer lasts depends on how many lithium ions can be stored in the battery's negative electrode material. If the battery runs out of these ions, it can't generate an electrical current to run a device and ultimately fails. Materials with a higher lithium ...

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