Energy & Green Tech
As lithium-ion batteries continue to decrease in price, they are quickly replacing the lead-acid batteries traditionally used in cars and other vehicles. This is creating a sudden abundance of used lead-acid batteries, which ...
Feb 2, 2023
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Energy & Green Tech
Solar cells made from perovskite, a material that is able to harvest sunlight and convert it to electricity, hold great potential as a replacement for silicon solar cells.
Feb 23, 2023
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42
Energy & Green Tech
Since the discovery of electricity, inventors have struggled with how to store it. Batteries emerged relatively quickly as the most common way to preserve energy chemically, but from portability to rechargeability, it has ...
Jan 25, 2022
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12
Energy & Green Tech
Publishing in Nature, EPFL scientists show how light affects perovskite film formation in solar cells, which is a critical factor in using them for cost-effective and energy-efficient photovoltaics.
Apr 26, 2017
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Energy & Green Tech
Batteries are in increasing demand because of their use in electric vehicles, consumer electronics, and grid scale storage. Their ubiquity is due, in part, to the rapid shift toward producing and using clean energy to replace ...
Feb 1, 2022
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5
Energy & Green Tech
The National Academies of Sciences, Engineering, and Medicine released on Jan. 12 a congressionally mandated report on reducing lead emissions from small aircraft—the single largest lead emitter in the United States. The ...
Jan 15, 2021
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Business
Research and development (R&D) has been vital to developing new clean energy technologies. Yet for technologies to advance from the research lab to viable commercial products many obstacles must be overcome. To replicate ...
Dec 7, 2022
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Electronics & Semiconductors
A team led by Prof. Yao Hongbin from the University of Science and Technology of China (USTC) developed a high efficiency, high brightness warm white light-emitting diode (LED) based on copper-iodide cluster hybrids. Their ...
Mar 25, 2024
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Lead (pronounced /ˈlɛd/) is a main-group element with symbol Pb (Latin: plumbum) and atomic number 82. Lead is a soft, malleable poor metal, also considered to be one of the heavy metals. Lead has a bluish-white color when freshly cut, but tarnishes to a dull grayish color when exposed to air. It has a shiny chrome-silver luster when melted into a liquid.
Lead is used in building construction, lead-acid batteries, bullets and shot, weights, and is part of solder, pewter, fusible alloys and radiation shields. Lead has the highest atomic number of all stable elements, although the next element, bismuth, has a half-life so long (longer than the estimated age of the universe) it can be considered stable. Like mercury, another heavy metal, lead is a potent neurotoxin that accumulates in soft tissues and bone over time. Lead poisoning was documented in ancient Rome, Greece, and China.
This text uses material from Wikipedia, licensed under CC BY-SA
