Fraunhofer ISE Claims 10-15% Higher Energy Density with Thicker Electrodes

Researchers at the Fraunhofer Institute for Solar Energy Systems (ISE) have unveiled a new battery cell design that promises a 10 to 15 per cent boost in energy density without adding weight. The key lies in using significantly thicker electrodes, which cuts down on the amount of current collector material needed.

The innovation could have significant implications for electric vehicles, where higher energy density translates directly to longer driving ranges or lighter battery packs. While the focus is currently on cell architecture, the approach may also simplify manufacturing by reducing the number of layers required.

The team has not yet announced a timeline for commercialisation, but the development is part of ongoing efforts to push the limits of lithium-ion technology. Fraunhofer ISE’s work adds to a growing list of incremental improvements that could collectively extend the range and efficiency of future EVs.