Electronics & Semiconductors
When temperatures fall below freezing, cellphones need to be recharged frequently, and electric cars have shorter driving ranges. This is because their lithium-ion batteries' anodes get sluggish, holding less charge and draining ...
Jun 8, 2022
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127
Energy & Green Tech
Researchers at Tohoku University have unearthed a means to stabilize lithium or sodium deposits in rechargeable batteries, helping keep their metallic structure intact. The discovery prevents potential battery degradation ...
Jun 6, 2022
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85
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
Energy & Green Tech
The lithium-ion battery (LIB) uses lithium ions as the key component of its electrochemistry. Due to its high energy density, long life, no memory effect and environmental friendliness, the Li-ion battery has been widely ...
May 25, 2022
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28
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
This film electrode does not need carbon additives and binders to connect particles like typical slurry-based electrodes, but it still exhibits excellent battery performance. The success of this electrode design provides ...
Mar 31, 2022
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11
Energy & Green Tech
Lithium-sulfur (Li-S) batteries offer great potential for use in energy storage systems because of their large energy capacity. However, safety problems related to their thermal behavior continue to be a concern for scientists.
Mar 14, 2022
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151
Energy & Green Tech
Pure lithium metal is a promising replacement for the graphite-based anodes currently used in electric vehicle batteries. It could tremendously reduce battery weights and dramatically extend the driving range of electric ...
Feb 28, 2022
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258
Energy & Green Tech
As the world lessens its dependence on fossil fuels, industries and manufacturers are turning to lithium-ion batteries to power the machines that make modern life possible. These batteries power electric vehicles, mobile ...
Feb 23, 2022
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52
Energy & Green Tech
Despite the many potential applications of seawater batteries (SWBs), the limited performance of available materials has hindered their commercialization. To tackle this issue, scientists from Korea Maritime and Ocean University ...
Feb 1, 2022
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80
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
