Technology and R&D

Japanese scientists have developed a new lithium-sulfur battery by using titanium oxide and titanium nitride to prevent the formation of polysulfides during the fabrication process. This allows the battery to retain 85% of its capacity after 500 cycles at 2 C.

The quantum dots used for the device are based on methylammonium lead iodide and are synthesized within a porous silica (SiO2) matrix. Compared to its bulk counterparts, the ligand-free solar cell exhibited a more stable performance.

Bauer Solartechnik GmbH has released its new 400 W and 405 W BS-M10 PV panel series for rooftop projects.

The Commonwealth Scientific and Industrial Research Organisation is pushing the limits of flexible solar PV cells by partnering with Australian startup Space Machines Company to test the technology in space.

The researchers showed a premagnetized carbon-cobalt catalyst interface could deliver up to 650% enhancement in electrocatalytic kinetics of hydrogen evolution reaction. The synergistic interface was able to sustain magnetization, and thus rapid hydrogen evolution rate, for prolonged time periods.

Scientists Ayodhya Tiwari and Daniel Lincot recently spoke to pv magazine about the future of copper indium gallium selenide solar tech, which could play a key role in providing flexible, lightweight products in the building-integrated PV segment.

Scientists in Italy have created a hybrid thermoelectric photovoltaic (HTEPV) system based on a thermoelectric generator and a wide-gap perovskite solar cell. The device is able to recover waste heat from the PV unit and produce additional power. According to its creators, this configuration needs large gap cells as these are less sensitive to temperature in terms of efficiency

A new white paper published by Chinese module giant JA Solar examines the performance of new large format modules, and compares products based on the two different wafer sizes, 182mm and 210mm, that are set to dominate the market for the coming years. Thanks largely to the impact of very high currents present in the larger of the two options, JA Solar finds that the 182mm products offer a slight advantage in performance. Further, JA notes that any further increases in size would come with more risk than reward, and calls on the industry to return its focus to reaching higher cell efficiencies and yields through new materials and innovations.

Ambri plans to commercialize its calcium-antimony liquid metal battery chemistry and open manufacturing facilities to deliver projects in 2023 and beyond.

ThyssenKrupp has also said it is working on a green hydrogen and ammonia project in the Emirates and three U.S. companies are planning to develop low-cost renewable hydrogen generation for use in transportation and distributed energy applications.