Imagery has come down from Mars capturing a recent flight in which the rotorcraft flew farther and faster than ever before.
Space Exploration
May 27, 2022
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755
For over a decade, scientists have attempted to synthesize a new form of carbon called graphyne with limited success. That endeavor is now at an end, though, thanks to new research from the University of Colorado Boulder.
Nanomaterials
May 21, 2022
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2682
Rechargeable lithium-ion batteries don't last forever—after enough cycles of charging and recharging, they'll eventually go kaput, so researchers are constantly looking for ways to squeeze a little more life out of their ...
Materials Science
Apr 28, 2022
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8
A research group, utilizing inexpensive elements, has demonstrated the feasibility of synthesizing electrode materials for lithium-ion batteries (LIBs). If explored further, this method could reduce industrial reliance on ...
Materials Science
Apr 28, 2022
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154
Supercapacitors are emerging as alternatives to lithium-ion batteries, offering higher power densities and longer lifetimes (number of cycles where capacity is maintained). A supercapacitor is like a cross between a battery ...
Nanophysics
Apr 14, 2022
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41
A joint research team from Tohoku University and the University of California, Los Angeles (UCLA) has made a significant advancement towards high-voltage metal-free lithium-ion batteries that use a small organic molecule—croconic ...
Analytical Chemistry
Apr 13, 2022
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40
A new study by Chinese researchers demonstrates a novel approach to enhancing the storage performance of batteries and capacitors. The researchers developed a simple yet efficient way to produce a material with excellent ...
Nanomaterials
Apr 06, 2022
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79
Canadian Light Source (CLS) researcher Toby Bond uses X-rays to help engineer powerful electric vehicle batteries with longer lifetimes. His research, published in the Journal of the Electrochemical Society, shows how the ...
Analytical Chemistry
Apr 05, 2022
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301
Energy storage in lithium-sulfur batteries is potentially higher than in lithium-ion batteries but they are hampered by a short life. Researchers from Uppsala University in Sweden have now identified the main bottlenecks ...
Materials Science
Mar 24, 2022
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53
The National Institute for Materials Science (NIMS) has succeeded in developing a new approach to the design of thermoelectric materials by constructing a database of electronic structure parameters correlated with materials' ...
Materials Science
Mar 17, 2022
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19
Lithium-ion batteries (sometimes abbreviated Li-ion batteries) are a type of rechargeable battery in which lithium ions move from the anode to cathode during discharge, and from the cathode to the anode when charged.
Lithium ion batteries are common in consumer electronics. They are one of the most popular types of battery for portable electronics, with one of the best energy-to-weight ratios, no memory effect, and a slow loss of charge when not in use. In addition to uses for consumer electronics, lithium-ion batteries are growing in popularity for defense, automotive, and aerospace applications due to their high energy density. However, certain kinds of mistreatment may cause conventional Li-ion batteries to explode.
The three primary functional components of a lithium ion battery are the anode, cathode, and electrolyte, for which a variety of materials may be used. Commercially, the most popular material for the anode is graphite. The cathode is generally one of three materials: a layered oxide, such as lithium cobalt oxide, one based on a polyanion, such as lithium iron phosphate, or a spinel, such as lithium manganese oxide, although materials such as TiS2 (titanium disulfide) were originally used. Depending on the choice of material for the anode, cathode, and electrolyte the voltage, capacity, life, and safety of a lithium ion battery can change dramatically. Recently novel architectures have been employed to improve the performance of these batteries. Lithium ion batteries are not to be confused with lithium batteries, the key difference being that lithium batteries are primary batteries containing metallic lithium while lithium-ion batteries are secondary batteries containing an intercalation anode material.
This text uses material from Wikipedia, licensed under CC BY-SA
