Energy & Green Tech
A low-cost, high-performance battery chemistry developed by University of Colorado Boulder researchers could one day lead to scalable grid-level storage for wind and solar energy that could help electrical utilities reduce ...
Jul 25, 2019
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523
Energy & Green Tech
With the rise in renewable energy as well as increasing uncertainty associated with outages due to power surges and extreme weather events, energy storage plays a key role in ensuring reliable power supply to critical infrastructure ...
May 11, 2022
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254
Energy & Green Tech
Futuristic advancements in AI and health care stole the limelight at the tech extravaganza Consumer Electronics Show (CES) 2024. However, battery technology is the game-changer at the heart of these innovations, enabling ...
Feb 7, 2024
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97
Electronics & Semiconductors
Researchers have developed a simple lab-based technique that allows them to look inside lithium-ion batteries and follow lithium ions moving in real time as the batteries charge and discharge, something which has not been ...
Jun 23, 2021
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20
Energy & Green Tech
For the first time, researchers have successfully printed a complete, albeit experimental, lithium-ion battery including a solid-state electrolyte. While electrodes have been produced using 3-D-printing technology before, ...
Aug 24, 2018
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208
Energy & Green Tech
UChicago Pritzker Molecular Engineering Prof. Y. Shirley Meng's Laboratory for Energy Storage and Conversion has created the world's first anode-free sodium solid-state battery.
Jul 3, 2024
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71
Energy & Green Tech
The same process that drains the battery of your cell phone even when it's turned off is even more of a problem for lithium-metal batteries, which are being developed for the next generation of smaller, lighter electronic ...
Mar 22, 2021
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32
Energy & Green Tech
Hotter summers, drier forests, rising waters: climate change is not just a threat to our future, it's hurting our world right now.
Sep 13, 2023
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4
Energy & Green Tech
As more drivers adopt plug-in hybrid and electric vehicles, the demand for lithium-ion batteries will continue to explode over the next decade. But processes for extracting lithium can be time-consuming and chemical-intensive, ...
Jul 26, 2022
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255
Energy & Green Tech
Electric cars require batteries. This is a billion-dollar industry that Norway is investing heavily in. Five gigafactories are currently being built in Norway. All of these will manufacture batteries for electric cars, and ...
May 4, 2023
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12
An ion is an atom or molecule where the total number of electrons is not equal to the total number of protons, giving it a net positive or negative electrical charge.
Since protons are positively charged and electrons are negatively charged, if there are more electrons than protons, the atom or molecule will be negatively charged. This is called an anion (pronounced /ˈænaɪən/; an-eye-on), from the Greek ἀνά (ana), meaning 'up'.
Conversely, if there are more protons than electrons, the atom or molecule will be positively charged. This is called a cation (pronounced /ˈkætaɪən/; cat-eye-on), from the Greek κατά (kata), meaning 'down'.
An ion consisting of a single atom is called a monatomic ion. If it consists of two or more atoms, it is called a polyatomic ion. Polyatomic ions containing oxygen, such as carbonate and sulfate, are called oxyanions.
When writing the chemical formula for an ion, its charge is written as a superscript '+' or '−' following a number indicating the difference between the number of protons and the number of electrons. The number is omitted if it is equal to 1. For example, the sodium cation is written as Na+, the '+' indicating that it has one less electron than it has protons. The sulfate anion is written as SO42−, the '2−' indicating that it has two more electrons than it has protons.
If an ion contains unpaired electrons, it is called a radical ion. Just like neutral radicals, radical ions are very reactive.
This text uses material from Wikipedia, licensed under CC BY-SA
