Millions of trams have been on the road Green hydrogen development has taken a big step

▲The Ruhr area, a traditional coal-iron industrial zone in Germany, has undergone industrial transformation and has become an innovative economic zone with beautiful environment and high-tech gathering.

Photo by Xinhua News Agency reporter Lu Yang

◎ Li Shan, the newspaper's correspondent in Germany

In July 2021, Germany achieved its goal of one million electric vehicles on the road. The German government plans to invest 800 million euros in one year to fund the construction of 900,000 private charging stations. The Ulm helmholtz Institute has developed a new lithium metal battery with an energy density of up to 560 Wh/kg and good stability. The Technical University of Ilmenau has developed the world's first test system for electric vehicles together with partners. The Technical University of Munich and others have collaborated to develop methanol-powered cars that consume as much energy as pure battery electric vehicles. In addition, Germany attaches great importance to the development of green hydrogen, regards it as a key raw material for energy transformation and sustainable growth, and has issued the German Hydrogen Action Plan 2021-2025.

The Solar Energy Research Institute under Fraunhofer achieves a record of 26% efficacy of double-sided contact with silicon-based solar cells. The institute has also developed Germany's first solar truck, and the 3.5 kW photovoltaic system can meet 5%-10% of the truck's energy demand. The new inverter developed by the Institute of Reliability and Microintegration can increase the range of electric vehicles by up to 6%. The Institute of Microtechnology and Microsystems has developed ammonia fuel cells for marine use. The Institute of Processing and Packaging Technology has developed coated paper as an environmentally friendly alternative to plastic packaging.

The German government has adopted a target agreement to strengthen soil protection in the marshlands, which plans to provide around €330 million by 2025 through the Energy and Climate Fund to finance specific measures for swamp re-humidification. The completion of the 16 million euro Earth Biology Laboratory at the Geoscience Research Centre is expected to become an interdisciplinary platform for exploring the subsurface biosphere. The Max Planck Institute for Marine Microbiology found that small particles known as "ocean snow" play an important role in the ocean nitrogen cycle. The Alfred Wegener Institute found that climate change contributes to increased ozone depletion over the Arctic through complex mechanisms; the Antarctic Circumpolar Current is closely related to climate fluctuations in the Southern Hemisphere, and as global warming, the Antarctic Circumference May Accelerate, affecting the Atlantic Ocean's inverted circulation and ocean carbon storage.

【Source: Science and Technology Daily】