Lithium Ion-based batteries are among the most effective and widely used battery technologies. However, the batteries' electrolytes mainly contain organic carbonated solvents, which are considered highly flammable with a narrow temperature window. To ensure that they...
Energy & Green Tech
Team creates anode-free Na batteries with high energy densities and long cycle lifetimes
In recent years, engineers worldwide have been trying to devise new battery and energy storage technologies that are more sustainable and cost-effective. One of the solutions attracting particular interest is sodium-based battery technology.
A system for the reversible hydrogenation of carbon dioxide into formic acid
In recent years, engineers have developed a growing number of alternative energy solutions that source electricity sustainably from sunlight, water, wind, hydrogen and other natural resources. For these technologies to fully substitute existing energy solutions,...
A strategy to attain amorphous silicon solar cells with over 25% efficiency
In recent years, engineers worldwide have been developing various new technologies to generate and store energy more sustainably. These technologies include solar or photovoltaic cells, electrical devices that can convert the light from the sun into electricity.
A heteropoly acid negolyte that could enhance the performance of aqueous redox flow batteries at low temperatures
In recent years, engineers have been developing a wide range of new battery technologies and solutions. One of these are redox flow batteries, devices that can store electrochemical energy by converting chemical energy into electrical energy via the reversible...
A new conducting polymer complex to create stable and fully printable organic solar cells
In recent years, engineers worldwide have been trying to develop more sustainable technologies to produce electrical energy. One of the most promising among these solutions are organic solar cells.
Adding energy cost information to energy-efficiency class labels could affect refrigerator purchases
To guide consumers in their choice of electrical appliances and devices, over a decade ago the European Union introduced an energy efficiency labeling scheme. This scheme gives potential buyers an idea of much electrical energy is consumed by different devices, so...
A new approach to improve the power control of wind farms
To slow down climate change and prevent its adverse consequences, humans will need to transition to more sustainable energy sources. Engineers worldwide have thus been working on a wide range of technologies that can convert natural resources, such as sunlight, wind,...
Organic semiconductor-based nanoparticles with long-lasting reactive charges
Due to their advantageous properties, organic semiconductors could be very promising photocatalysts for producing solar fuels. In fact, these materials can be synthetically tuned to absorb visible light, while simultaneously retaining energy levels that are desirable...
Study unveils factors limiting the voltage of polycrystalline CdSeTe solar cells
So far, solar cells based on polycrystalline cadmium selenide telluride (CdSeTe) have exhibited some crucial limitations, despite their low fabrication costs and advantageous qualities. Most notably, these solar cells exhibit higher voltage losses than other mature...