3+ hour, 33+ min ago  (359+ words) Researchers at the German institute built a photovoltaic water electrolysis system based on micro-concentrator photovoltaics coupled to proton exchange membrane electrolysis. Outdoor testing demonstrated a record solar-to-hydrogen efficiency of 31. 3%, achieved by a four-junction CPV system driving two PEM cells in…...

1+ week, 1+ hour ago  (240+ words) A sodium-ion accumulator stack Image: Ra Boe, Wikimedia Commons, CC BY-SA 3. 0 DE "The new electrolyte represents a new strategy to regulate Na solvation structure that can facilitate favorable reactions and suppress unwanted ones," the research's lead author, An L. Phan, told…...

10+ mon, 4+ day ago  (531+ words) Testing conducted by the Helmholtz-Zentrum Berlin (HZB) in Germany has shown that perovskite solar cells operating at high latitudes in Europe may suffer from higher performance losses in winter compared to conventional PV devices. The scientists warned, however, that at…...

6+ mon, 4+ day ago  (569+ words) Tests conducted by a research team in outdoor environments in Spain and Poland have demonstrated a strong correlation between perovskite solar cell degradation and the combined effects of climatic and operating conditions. The scientists found that open-circuit operation accelerates degradation,…...

10+ mon, 3+ week ago  (343+ words) Australian researchers have developed a new dry electrode fabrication strategy for aqueous zinc-iodine batteries. They say it delivers cathodes with more than double the performance of iodine and lithium-ion batteries. Image: University of Adelaide University of Adelaide scientists have developed…...

10+ mon, 3+ week ago  (548+ words) Australian researchers are reporting a breakthrough with zinc-ion battery technology, developing a new method to significantly boost the structural stability of the cathode material that enables the battery to operate reliably for more than 5, 000 charge-discharge cycles. Image: University of Manchester…...

1+ mon, 1+ week ago  (647+ words) pv magazine International Conductive smart hydrogels as battery electrolytes: Promising for lithium, sodium, and zinc-ion chemistries Hydrogels offer promise in batteries as an electrolyte, including lithium and sodium chemistries, due to being inherently more safe. Image: Petra Klawikowski, Wikimedia Commons,…...

6+ mon, 3+ week ago  (169+ words) Researchers in Japan have adopted a new calcium-doping strategy to improve the stability and electrochemical properties of NFM, a cathode material used in sodium-ion batteries. The new technique enhances crystallinity and increases the interlayer spacing in NFM, resulting in higher…...

10+ mon, 1+ week ago  (345+ words) Researchers in Italy have tested how perovskite solar cells could perform underwater and have found that, at very shallow depths, they may even achieve a higher power conversion efficiencies compared to reference devices operating under out-of-water conditions. Perovksite solar cell's…...

1+ mon, 1+ week ago  (376+ words) A Japanese'Chinese team developed a titanium molten salt redox-flow battery using abundant titanium ions and molten salt electrolytes to enable high-voltage, fast, and stable grid-scale energy storage. The system demonstrates high efficiency of over 97%, strong cycling stability, and improved cost…...