Energy & Green Tech
Lithium-ion (Li-ion) batteries are among the most widespread battery technologies worldwide, due to their light weight, high energy densities, easy fabrication process, rapid charging times and other advantageous properties. ...
Energy & Green Tech
Cars that burn petrol and diesel must be replaced with renewable alternatives if the climate crisis is to be overcome. Electric vehicles (EVs) are widely viewed as the best option available.
Oct 11, 2023
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Energy & Green Tech
A research team recently published a new study on initiating high voltage multi-electron reactions in NASICON cathodes in the journal Energy Material Advances.
Sep 18, 2023
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Energy & Green Tech
In a study published in Advanced Energy Materials, a research team led by Prof. Zhang Yunxia from the Hefei Institutes of Physical Science of the Chinese Academy of Sciences developed a solid-phase sintering strategy to enable ...
Aug 31, 2023
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Energy & Green Tech
A team of molecular foundry and energy storage engineers at Lawrence Berkeley National Laboratory has developed an electrolyte material for use in solid state batteries that allows for reuse of cathodes at up to 90% capacity. ...
Energy & Green Tech
Lithium-ion batteries (LiBs), rechargeable batteries that store energy by leveraging the reversible reduction of Li ions, remain among the most widely used battery technologies worldwide. These batteries power a wide range ...
Energy & Green Tech
Rather than being solely detrimental, cracks in the positive electrode of lithium-ion batteries reduce battery charge time, research done at the University of Michigan shows.
Aug 1, 2023
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Energy & Green Tech
Scientists have made a significant breakthrough in understanding and overcoming the challenges associated with Ni-rich cathode materials used in lithium-ion batteries. Researchers from the Universities of Birmingham, Cambridge, ...
Jul 19, 2023
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Energy & Green Tech
Manganese-rich NASICON-type materials have attracted widespread attention for developing advanced polyanionic cathodes, primarily driven by their abundant reserves, promising cycling performance, and potentially high operating ...
Jul 13, 2023
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Engineering
Solid electrolytes with high lithium-ion conductivity can be designed for millimeter-thick battery electrodes by increasing the complexity of their composite superionic crystals, report researchers from Tokyo Tech. This new ...
Jul 6, 2023
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A cathode is an electrode through which electric current flows out of a polarized electrical device. Mnemonic: CCD (Cathode Current Departs).
Cathode polarity is not always negative. Although positively charged cations always move towards the cathode (hence their name) and/or negatively charged anions move away from it, cathode polarity depends on the device type, and can even vary according to the operating mode. In a device which consumes power, the cathode is negative, and in a device which provides power, the cathode is positive:
An electrode through which current flows the other way (into the device) is termed an anode.
This text uses material from Wikipedia, licensed under CC BY-SA
