Automotive
Canada announced Tuesday tentative deals with Volkswagen and Mercedes-Benz that would see the two European automakers tap into burgeoning North American supply chains as they seek to challenge Tesla in the electric vehicle ...
Aug 23, 2022
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22
Energy & Green Tech
The long-standing challenges to the practical implementation of rechargeable zinc-air batteries (ZABs) are the electrochemical irreversibility of the Zn anode and degradation of the air cathodes in alkaline electrolyte, which ...
Jun 20, 2022
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78
Energy & Green Tech
The research outcome of Korea Electrotechnology Research Institute (KERI) related to "low-cost and flexible high-energy-density lithium-sulfur batteries" was recently published on the front cover of the journal Small.
May 12, 2022
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12
Energy & Green Tech
Researchers from Tokyo Metropolitan University have developed a new quasi-solid-state cathode for solid-state lithium metal batteries, with significantly reduced interfacial resistance between the cathode and a solid electrolyte. ...
Mar 21, 2022
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91
Energy & Green Tech
Billions of dead lithium-ion batteries, including many from electric vehicles, are accumulating because there is no cost-effective process to revive them. Now, Princeton researchers have developed an inexpensive, sustainable ...
Feb 22, 2022
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15
Energy & Green Tech
A research group led by Prof. Zhao Junmei from the Institute of Process Engineering (IPE) of the Chinese Academy of Sciences developed a novel vanadium-poor and manganese-rich phosphate cathode with better electrochemical ...
Dec 15, 2021
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26
Automotive
Ford Motor Co. is investing $50 million in an upstart electric vehicle battery recycling company as the automaker moves to shore up its U.S. battery supply chain.
Sep 22, 2021
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7
Engineering
Scientists at Oak Ridge National Laboratory have developed a solvent that results in a more environmentally friendly process to recover valuable materials from used lithium-ion batteries, supports a stable domestic supply ...
Jun 2, 2021
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5
Energy & Green Tech
Scientists at Skoltech Center for Energy Science and Technology have developed an enriched and scalable approach for increasing the capacity of a broad range of metal-ion battery cathode materials. These findings, published ...
May 17, 2021
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28
Electronics & Semiconductors
In the face of the surging demand for lithium-ion batteries and limited lithium reserves, scientists are searching for alternatives to the lithium technology. Russian researchers from Skoltech, D. Mendeleev University, and ...
Jan 18, 2021
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54
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
