Energy & Green Tech
Lithium-air batteries, sometimes known as lithium-oxygen batteries (Li-O2), comprise a lithium metal anode, an organic electrolyte and a porous carbon cathode. During discharge, oxygen in the surrounding air reacts with lithium ...
Nov 14, 2023
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Engineering
Densely packed housing makes urban areas vulnerable to overheating, pollution and dangerous wind gusts. The effects of climate change can aggravate these problems, but we can also work to prevent them. This can be done by ...
Jun 14, 2023
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Energy & Green Tech
Zinc-air batteries, which produce electricity through a chemical reaction between oxygen in the atmosphere and zinc, are considered to be next-generation candidates to meet the explosive demand for electric vehicles instead ...
Apr 7, 2022
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Energy & Green Tech
NIMS and Softbank Corp. have developed a lithium-air battery with an energy density over 500Wh/kg—significantly higher than that of current lithium ion batteries. The research team then confirmed that this battery can be ...
Jan 20, 2022
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Engineering
In the final few minutes of a spacecraft landing it is moving at hypersonic speeds through many layers of atmosphere. Knowing the air density outside of the vehicle can have a substantial effect on its angle of descent and ...
Apr 2, 2020
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