Non-toxic salt water battery prototype can charge in seconds
A battery prototype has been designed using salt water and materials that are non-toxic and charge quickly, paving the way for new types of battery.
Mar 21, 2019
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A battery prototype has been designed using salt water and materials that are non-toxic and charge quickly, paving the way for new types of battery.
Mar 21, 2019
0
1466
Victory Motorcycles has introduced its Empulse TT, the first all-electric addition to the Victory lineup. Features include adjustable suspension featuring a single rear shock and inverted front forks; dual-disk front brakes ...
A sodium-sulfur battery created by engineers at The University of Texas at Austin solves one of the biggest hurdles that has held back the technology as a commercially viable alternative to the ubiquitous lithium-ion batteries ...
Dec 6, 2021
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Scientists led by an Oregon State University researcher have developed a new electrolyte that raises the efficiency of the zinc metal anode in zinc batteries to nearly 100%, a breakthrough on the way to an alternative to ...
Mar 27, 2023
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Researchers at the University of California, Irvine and four national laboratories have devised a way to make lithium-ion battery cathodes without using cobalt, a mineral plagued by price volatility and geopolitical complications.
Sep 21, 2022
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In recent years, material scientists have been trying to develop soft and flexible fibers that could be used to create new electronics. These fibers could, for example, be used to create smart sensing clothes, energy solutions, ...
For decades, researchers have looked for ways to eliminate cobalt from the high-energy batteries that power electronic devices, due to its high cost and the human rights ramifications of its mining. But past attempts haven't ...
Jul 15, 2020
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As the climate crisis looms, scientists are racing to find solutions to common clean energy problems, including solar energy storage. Solar energy is one of the best renewable resources we have, but it has challenges that ...
Jun 24, 2022
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From flat battery to full charge in just five minutes—an Israeli start-up has developed technology it says could eliminate the "range anxiety" associated with electric cars.
Mar 7, 2021
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As the world shifts to electric vehicles to reduce climate change, it is important to quantify future demands for key battery materials. In a new report, Chengjian Xu, Bernhard Steubing and a research team at the Leiden University, ...
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