Scientists at Empa are exploring a game-changing approach to energy storage in urban areas. Faced with the low energy density of water-based flow batteries, researcher David Reber aims to revolutionize the technology through innovative materials design.

Traditional batteries power our devices, but in a groundbreaking shift, Reber investigates water-based flow batteries. Unlike common lithium-ion batteries, these use liquid electrolytes stored in tanks, offering promise for large-scale stationary energy storage in urban environments.

Despite their potential, flow batteries have been hindered by a low energy density, a crucial drawback addressed in Reber’s research. He envisions a hybrid solution, combining the scalability of flow batteries with the high energy density of solid storage materials, like those found in cell phone batteries.

The challenge lies in finding compatible materials that facilitate stable, long-term energy exchange. Reber’s unique strategy involves incorporating solid storage materials into the flow battery, enhancing its performance. If successful, this breakthrough could lead to diverse applications, including compact and flexible energy solutions for urban integration.

The project, supported by an Ambizione grant from the Swiss National Science Foundation, marks a significant step towards sustainable energy storage. As the world embraces renewable energy, innovations like Reber’s could play a vital role in meeting the growing demand for large-scale, urban energy storage solutions.

Researcher David Reber’s ambitious vision could reshape the future of energy storage, making it more efficient and adaptable for urban landscapes.

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