How many times have you gone to use your TV remote only to find that its batteries are dead?
Another dead battery is useless, right? Well, not to researchers at MIT, which have found another way to use these lifeless objects: recycling their main ingredient — lead — to create solar cells.
Lead is a toxic substance that not only causes a multitude of medical problems but is also linked to spikes in violent crime. That’s why many governments have outlawed it from being used in paint and gasoline, as well as requiring battery manufacturers to recycle their product.
However, while the recycling process was working, there’s a slight hitch now. With the introduction of non-lead batteries, such as lithium-ion ones, there isn’t going to be as much of a need to recycle the old lead-filled ones, according to Fast Company.
So what’s going to happen to all that lead?
Fortunately, MIT researchers discovered the ability to use lead to produce solar cells from a material called perovskite, a mineral that’s incredibly energy efficient. Not only is it cheaper than the silicon used in today’s cells, but it also converts solar energy to electricity at a little less than 20 percent. To top it off, the mineral is highly flexible — meaning that the cells it makes are 100 times thinner than human hairs and can bend easily, reports Fast Company.
Normally, acquiring the lead would be a problem, but with all of these excess batteries, researchers have found their supply. From each battery, about 30 solar cells could be made.
Unfortunately, there aren’t any plans to commercialize this product. MIT researchers are leaving that to other companies, such as the U.K.’s Oxford PV, while they work on a lead-free perovskite solar cell.
But for the time being, those old batteries are being put to good use and given a second life.
Who would’ve thought something so toxic could be so energy efficient?
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Tag: solar cells
See What the Next Generation of Solar Panels Looks Like
Here at NationSwell, we’ve ooh’d and ahh’d at the remarkable technology of solar panels several times. But regardless of how awesome and environmentally friendly they are, there are some people who are concerned about how “unsightly” they look on top of their neighbors’ houses.
Well, thanks to Michigan State University (MSU) researchers, the aesthetically-interested can keep their precious view.
According to a statement from the university, a team at MSU’s College of Engineering have invented a completely see-through solar panel that can be used on anything with a clear surface, such as windows and smart phones.
“It opens a lot of area to deploy solar energy in a non-intrusive way,” says Richard Lunt, assistant professor of chemical engineering who led the team. “It can be used on tall buildings with lots of windows or any kind of mobile device that demands high aesthetic quality like a phone or e-reader. Ultimately we want to make solar harvesting surfaces that you do not even know are there.”
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The panel — called a “transparent luminescent solar concentrator” — uses small organic molecules that absorbs invisible wavelengths of sunlight and channels it to the photovoltaic solar cells on the panel’s edge, converting it into electricity.
It’s important to note that this current version is only about 1 percent efficient (whereas the most efficient panels can convert up to 40 percent) but the researchers are aiming for efficiencies beyond 5 percent.
But it’s clear (see what we did there?) that this is only just the beginning. As solar technology continues its rise and becomes less expensive, it’s helping our country shift away from its reliance on fossil fuels. And, yes, for those who are concerned, perhaps this future is one that isn’t clouded by those clunky panels.
DON’T MISS: This Texas Solar Farm Relies on a Flock of Sheep to Perform Maintenance
New York State Wants to Invest $225 Million in This Emerging Industry
Silevo, a high-tech solar panel start up, recently announced plans to build a 200-megawatt solar cell factory in Buffalo. New York state plans to invest $225 million in the facilities, which would house Silevo and LED firm Soraa, and employ 475 people at the site by 2015. The solar industry is still young and competitive, but New York is apparently ready to take the plunge.