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
Energy & Green Tech
Researchers from the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) have developed a new lithium metal battery that can be charged and discharged at least 6,000 times—more than any other pouch ...
Jan 8, 2024
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216
Energy & Green Tech
Li-ion batteries and other emerging lithium-based battery technologies are currently used to power a wide range of devices, including smartphones, laptops, tablets and cameras. Despite their advantages, batteries containing ...
Energy & Green Tech
A team of researchers affiliated with multiple institutions in China has increased the speed of charging a lithium-ion battery by adding a copper coating and nanowires to its anode to improve ordering. Their study is published ...
Energy & Green Tech
A team of researchers led by chemists at the U.S. Department of Energy's (DOE) Brookhaven National Laboratory has learned that an electrolyte additive allows stable high-voltage cycling of nickel-rich layered cathodes. Their ...
Jun 1, 2022
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1170
Engineering
Engineers created a new type of battery that weaves two promising battery sub-fields into a single battery. The battery uses both a solid state electrolyte and an all-silicon anode, making it a silicon all-solid-state battery. ...
Sep 23, 2021
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313
Energy & Green Tech
(TechXplore)—Most of the sodium-ion batteries that have been developed so far have been half-cell batteries, meaning that the anode is made of a standard sodium metal. However, this standard sodium metal becomes highly ...
Energy & Green Tech
Scientists of the National University of Science and Technology "MISIS" (NUST MISIS), part of an international team of researchers, managed to increase the capacity and extend the service life of lithium-ion batteries. According ...
Mar 10, 2021
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228
Energy & Green Tech
An MIT spinout is preparing to commercialize a novel rechargable lithium metal battery that offers double the energy capacity of the lithium ion batteries that power many of today's consumer electronics.
Aug 17, 2016
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2469
Energy & Green Tech
Rechargeable lithium-ion, the dominant battery technology for portable electronics, is increasingly becoming the battery of choice for electric-vehicle and electric-grid energy-storage applications.
Mar 30, 2018
3
612
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
