MIT Researchers Unveil Transparent Solar Cell
It has been the dream and pursuit of many a business and research endeavor, but only varied success has been achieved to create a truly transparent solar photovoltaic cell. Leave it to the brainiacs at MIT to find the solution. Yes, the research and technology hub has done it again, marking a landslide achievement in the world of energy technology with the creation of a clear solar pv cell.
Researchers Vladimir Bulovic and Richard Lunt have published their findings in Applied Physics Letters. The duo has apparently created a transparent solar cell with a maximum efficiency (sunlight to electricity) of 1.7 percent. The cell operates within the near-infrared spectrum. However, the cell is still only about 55 percent transparent, similar to tinted sunglasses.
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The transparent cell is actually quite unique in its design when compared to tradition cells. Bulovic and Lunt’s transparent cell is comprised of organic molecules that harness infrared light while allowing visible light to pass through. The photovoltaic compound is actually coated onto a pane of standard window glass. The researchers are in the prototype phase of this technology, but believe it could potentially be painted onto existing windows to create a low-cost easy-to-install photovoltaic option for both commercial and home solar installations.
Imagine, soon you may be able to stop by Home Depot or Lowe’s, pick up a can of solar paint and slap it on your house for a fraction of the cost of modern solar panels. What’s even better is the environmental impact of producing the transparent solar coating is much less than current PV panels, which are both energy and resource-intensive. There is one potential flaw, however, in that the tinting created by the photovoltaic coating could adversely affect a building’s solar heat gain. This may be a good thing in warmer climates—reducing air conditioning bills—but could prove problematic in more frigid areas.
Itronics successfully tests manganese recovery process
Itronics - a Nevada-based emerging cleantech materials growth company that manufacturers fertilisers and produces silver - has successfully tested two proprietary processes that recover manganese, with one process recovering manganese, potassium and zinc from paste produced by processing non-rechargeable alkaline batteries. The second recovers manganese via the company’s Rock Kleen Technology.
Manganese, one of the four most important industrial metals and widely used by the steel industry, has been designated by the US Federal Government as a "critical mineral." It is a major component of non-rechargeable alkaline batteries, one of the largest battery categories sold globally.
The use of manganese in EV batteries is increasing as EV battery technology is shifting to use of more nickel and manganese in battery formulations. But according to the US Department of Interior, there is no mine production of manganese in the United States. As such, Itronics is using its Rock Kleen Technology to test metal recoverability from mine tailings obtained from a former silver mine in western Nevada that has a high manganese content.
In a statement, Itronics says that its Rock Kleen process recovers silver, manganese, zinc, copper, lead and nickel. The company says that it has calculated – based on laboratory test results – that if a Rock Kleen tailings process is put into commercial production, the former mine site would become the only primary manganese producer in the United States.
Itronics adds that it has also tested non-rechargeable alkaline battery paste recovered by a large domestic battery recycling company to determine if it could use one of its hydrometallurgical processes to solubilize the manganese, potassium, and zinc contained in the paste. This testing was successful, and Itronics was able to produce material useable in two of its fertilisers, it says.
"We believe that the chemistry of the two recovery processes would lend itself to electrochemical recovery of the manganese, zinc, and other metals. At this time electrochemical recovery has been tested for zinc and copper,” says Dr John Whitney, Itronics president.
“Itronics has been reviewing procedures for electrochemical recovery of manganese and plans to move this technology forward when it is appropriate to do so and has acquired electro-winning equipment needed to do that.
"Because of the two described proprietary technologies, Itronics is positioned to become a domestic manganese producer on a large scale to satisfy domestic demand. The actual manganese products have not yet been defined, except for use in the Company's GOLD'n GRO Multi-Nutrient Fertilisers. However, the Company believes that it will be able to produce chemical manganese products as well as electrochemical products," he adds.
Itronics’ research and development plant is located in Reno, about 40 miles west of the Tesla giga-factory. Its planned cleantech materials campus, which will be located approximately 40 miles south of the Tesla factory, would be the location where the manganese products would be produced.
Panasonic is operating one of the world's largest EV battery factories at the Tesla location. However, Tesla and other companies have announced that EV battery technology is shifting to use of nickel-manganese batteries. Itronics is positioned and located to become a Nevada-0based supplier of manganese products for battery manufacturing as its manganese recovery technologies are advanced, the company states.
A long-term objective for Itronics is to become a leading producer of high purity metals, including the U.S. critical metals manganese and tin, using the Company's breakthrough hydrometallurgy, pyrometallurgy, and electrochemical technologies. ‘Additionally, Itronics is strategically positioned with its portfolio of "Zero Waste Energy Saving Technologies" to help solve the recently declared emergency need for domestic production of Critical Minerals from materials located at mine sites,’ the statement continues.
The Company's growth forecast centers upon its 10-year business plan designed to integrate its Zero Waste Energy Saving Technologies and to grow annual sales from $2 million in 2019, to $113 million in 2025.