Energy & Green Tech
Sodium-ion batteries are a potential replacement for lithium batteries, but the anodes—positively charged electrodes—that work well for lithium-ion batteries don't provide the same level of performance for sodium-ion ...
Jan 12, 2021
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93
Energy & Green Tech
A University of Central Florida researcher is working to make portable devices and electric vehicles stay charged longer by extending the life of the rechargeable lithium-ion batteries powering them.
Oct 26, 2020
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4
Energy & Green Tech
Sodium-based dual-ion batteries (Na-DIBs) are promising for large-scale energy storage applications due to high efficiency, low cost, and environmental friendliness.
Sep 9, 2020
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4
Energy & Green Tech
Scientists at UC San Diego have discovered a new anode material that enables lithium-ion batteries to be safely recharged within minutes for thousands of cycles. Known as a disordered rocksalt, the new anode is made up of ...
Sep 2, 2020
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83
Energy & Green Tech
Delft University of Technology researchers, in collaboration with researchers from Tsinghua University, have taken an important step toward a new type of Li-ion battery, which are used in smartphones, laptops, and electric ...
Sep 1, 2020
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1384
Energy & Green Tech
Electrifying research by Clemson University scientists could lead to the creation of lighter, faster-charging batteries suitable for powering a spacesuit, or even a Mars rover. The research, which was funded by NASA, was ...
Aug 31, 2020
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140
Energy & Green Tech
Researchers in WMG and the Department of Physics at the University of Warwick have found that asymmetric stresses within electrodes used in certain wearable electronic devices provides an important clue as to how to improve ...
Aug 25, 2020
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14
Electronics & Semiconductors
Researchers at Karlsruhe Institute of Technology (KIT) and Jilin University in Changchun/China investigated a highly promising anode material for future high-performance batteries—lithium lanthanum titanate with a perovskite ...
Aug 6, 2020
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9
Energy & Green Tech
Scientists from Skoltech and Moscow State University (MSU) identified the type of electrochemical reaction associated with charge storage in the anode material for sodium-ion batteries (SIB), a new promising class of electrochemical ...
Jul 21, 2020
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189
Energy & Green Tech
In the pursuit of a rechargeable battery that can power electric vehicles (EVs) for hundreds of miles on a single charge, scientists have endeavored to replace the graphite anodes currently used in EV batteries with lithium ...
Jul 20, 2020
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3270
An anode is an electrode through which electric current flows into a polarized electrical device. Mnemonic: ACID (Anode Current Into Device). Electrons flow in the opposite direction to the electric current (flow of hypothetical positive charge)
A widespread misconception[citation needed] is that anode polarity is always positive. This is often incorrectly inferred from the correct fact that in all electrochemical devices negatively charged anions move towards the anode (hence their name) and/or positively charged cations move away from it. In fact anode polarity depends on the device type, and sometimes even in which mode it operates, as per the above electric current direction-based universal definition. Consequently, as can be seen from the following examples, in a device which consumes power the anode is positive, and in a device which provides power the anode is negative:
An electrode through which current flows the other way (out of the device) is termed a cathode.
This text uses material from Wikipedia, licensed under CC BY-SA
