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The energy transition presents us all with major challenges. We need not only electricity from renewable sources, but also storage solutions. At the Wannsee site, Yan Lu's team is researching novel lithium-sulphur batteries that can store much more energy than conventional batteries. The laboratory is unique in the Berlin-Brandenburg research landscape. In the cover story, the head of department tells us what motivates her about her work.
Rutger Schlatmann from the Photovoltaics Competence Centre PVcomB is also concerned with how the transformation of the energy system can succeed. Since autumn 2022, he has been chairman of the European advisory platform ETIP-PV and advises politicians on what framework conditions the solar industry needs in Europe. "The pressure to act is great," he admits in the interview.
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Your lichtblick editorial team
Content
- cover story: Research for the batteries of the future
- Video interview of Bernd Rech
- “We are currently in a decisive phase for photovoltaics” Interview of Rutger Schlatmann
- page 12: New Ombudspeople at HZB
- page 13: BESSY III reaches first Milestone
- page 14: Interview of HZB Social Media Manager Stefanie Kodalle
- page 15: HZB in numbers: Who reads our news?
- page 16: Florian Wichert, Head of Finance at HZB, about his new job
- page 17: Alternatives to Windows, Office and Co.
- page 20: Receipes from all over the world: Chilaquiles verdes by Lucero Yazmin Cobos Becerra
- A simpler way to inorganic perovskite solar cellsInorganic perovskite solar cells made of CsPbI3 are stable over the long term and achieve good efficiencies. A team led by Prof. Antonio Abate has now analysed surfaces and interfaces of CsPbI3 films, produced under different conditions, at BESSY II. The results show that annealing in ambient air does not have an adverse effect on the optoelectronic properties of the semiconductor film, but actually results in fewer defects. This could further simplify the mass production of inorganic perovskite solar cells.
- BESSY II: How pulsed charging enhances the service time of batteriesAn improved charging protocol might help lithium-ion batteries to last much longer. Charging with a high-frequency pulsed current reduces ageing effects, an international team demonstrated. The study was led by Philipp Adelhelm (HZB and Humboldt University) in collaboration with teams from the Technical University of Berlin and Aalborg University in Denmark. Experiments at the X-ray source BESSY II were particularly revealing.
- Fuel Cells: Oxidation processes of phosphoric acid revealed by tender X-raysThe interactions between phosphoric acid and the platinum catalyst in high-temperature PEM fuel cells are more complex than previously assumed. Experiments at BESSY II with tender X-rays have decoded the multiple oxidation processes at the platinum-electrolyte interface. The results indicate that variations in humidity can influence some of these processes in order to increase the lifetime and efficiency of fuel cells.