L R AS Published on Saturday 15 May 2021 - n° 362 - Categories:R&D
R & D highlights: solid state battery, singlet fission solar cell
R & D Highlights: Solid State Battery, Singlet Fission Solar Cell
Harvard scientists present a solid-state lithium battery that can perform
AS Published on Monday 10 May 2021 - n° 361 - Categories:R&D
Injecting lithium into an old battery to make it new?
Scientists in Finland have observed that the loss of lithium over time is one of the main causes of the loss of lithium.
L R AS Published on Sunday 9 May 2021 - n° 361 - Categories:R&D
In brief R&D: redox flow battery, new electrolyte, recycling rare earths, new solar cell, anode-free battery
In brief R&D: redox flow battery, new electrolyte, recycling rare earths, new solar cell, anode-free battery
Scientists at Fraunhofer Umsicht have redesigned the redox flow battery.
L R AS Published on Monday 3 May 2021 - n° 360 - Categories:R&D
Hydrogen plays a major role in the formation of defects in perovskite
Americans have discovered that hydrogen plays a major role in the formation of defects in a perovskite film, and that it limits
L R AS Published on Monday 19 April 2021 - n° 359 - Categories:R&D
Solar cell with ultra-thin transparent layers
Germans have developed a solar cell with ultra-thin transparent layers that would be efficient
L R AS Published on Monday 19 April 2021 - n° 359 - Categories:R&D
Fraunhofer achieves a new conversion record of 26% with a two-sided cell
Fraunhofer ISE achieved a new conversion record of 26% with a two-sided cell using
L R AS Published on Monday 12 April 2021 - n° 358 - Categories:R&D
R&D highlights: sky cooling, 25.6% perovskite cell, 24.2% heterojunction, 20.5% perovskite panel
R&D Highlights: Sky cooling, 25.6% perovskite cell, 24.2% heterojunction, 20.5% perovskite panel
Researchers from the Institute of Nanotechnology in Lyon (INL) have studied radiative sky cooling (RSC)
L R AS Published on Sunday 11 April 2021 - n° 358 - Categories:R&D
Promising new material for energy storage in batteries
Russian scientists are presenting a promising new material for energy storage in batteries, the result of more than three years of research. By incorporating a nickel-salen polymer
L R AS Published on Tuesday 6 April 2021 - n° 357 - Categories:R&D
Perovskite solar cells from a titanium oxide electron transport layer
Japanese researchers have made perovskite solar cells from a titanium oxide electron transport layer. They achieved an efficiency of
L R AS Published on Monday 29 March 2021 - n° 356 - Categories:R&D
In short, R&D: a lightweight battery, a perovskite panel, cooling PV panels
R&D highlights: lightweight battery, perovskite panel, cooling PV panels
Swedes have developed a very lightweight battery, using
L R AS Published on Sunday 21 March 2021 - n° 355 - Categories:R&D
In brief R&D: Russian holographic film, Chinese four-component panels
In brief R&D: Russian holographic film, Chinese four-component panels
Russians have developed a holographic film based on prismatic concentrators. It reduces
L R AS Published on Saturday 20 March 2021 - n° 355 - Categories:R&D , other France
New technique to destroy used panels
The French research institute CEA-Liten has created a technique that uses a diamond wire to cut photovoltaic cells and separate
L R AS Published on Sunday 14 March 2021 - n° 354 - Categories:R&D
In brief R&D: evaporative perovskite, four-junction cell, aluminium-ion battery
In brief R&D: evaporative perovskite, four-junction cell, aluminium-ion battery
A methylammonium-free perovskite solar cell has been manufactured
L R AS Published on Saturday 6 March 2021 - n° 353 - Categories:R&D
R&D at a glance: CITCEA map; Fraunhofer screen printing; lossless perovskite; CGIS at 19.6%.
R&D in brief: CITCEA card; Fraunhofer screen printing; Perovskite without loss; CGIS at 19.6%.
The technology transfer centre CITCEA, within the Universitat Politècnica de Catalunya (UPC), has developed a way to manage excess energy in photovoltaic installations. The power electronics developed would be capable of combining different storage technologies in a single electronic board. It enhances a storage system to provide power quality and auxiliary services in low-voltage networks. It can be connected to the power grid. It manages the energy produced by a photovoltaic system thanks to a set of converters and batteries, which make the consumption and injection of surplus solar energy into the grid more efficient. This technology provides the maintenance, flexibility, efficiency, fault tolerance, scalability, reliability and controllability necessary to operate correctly on the grid.
Algorithms are used to forecast daily energy production and demand. They then plan the charging and discharging of batteries.
"This technology will facilitate the local consumption of renewable energy production and avoid the need to transport the electricity produced far from consumption, contributing to a much more efficient energy system," said CITCEA.
https://www.pv-magazine.com/2021/03/04/new-power-electronic-device-to-manage-surplus-solar-power/
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Scientists at the Fraunhofer ISE have developed a model to simulate different screen printing configurations in the metallisation of solar cells. The model provides a comparable "screen printing utility index" value. It can predict the usefulness of different architectures in printing equipment based on the properties of a given silver paste. This will help the photovoltaic industry to reduce the amount of silver needed to manufacture silicon cells.
https://www.pv-magazine.com/2021/03/05/simulating-pvs-silver-future/
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Scientists at the University of North Carolina have developed a perovskite solar cell with an efficiency of 23.2% by adding benzylhydrazine hydrochloride (BHC) as a reducing agent for iodine (I) in precursor solutions such as methylammonium iodide (MAI) and formamidinium iodide (FAI).
Preventing the degradation of perovskite precursor solutions is just as important as the encapsulation of devices after manufacture. Large areas of perovskite panels are typically air fabricated and perovskite precursor inks are typically prepared in large quantities and stored for days or months.
https://www.pv-magazine.com/2021/03/04/inverted-blade-coated-perovskite-cell-with-23-2-efficiency/
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The German Avancis, a subsidiary of the Chinese CNBM, achieved an efficiency of 19.6% with a CIGS panel. This result was confirmed by the NREL. The previous record for this size and technology was 19.2%.
This is due to the improved homogeneity of the CIGS forming process, optimal co-ordination of the properties of the different functional layers and a reduction in reflection losses.
https://www.pv-magazine.com/2021/03/04/avancis-claims-19-64-efficiency-for-cigs-module/
PV Magazine of 4 March 2021
L R AS Published on Monday 1 March 2021 - n° 352 - Categories:R&D
Ultra-fine solar cells developed by the CNRS (French National Centre for Scientific Research)
Le Monde presented the ultra-fine solar cells for tomorrow's photovoltaics, developed by the CNRS and mentioned in Le Journal.
Researchers from the