Together with partners from research and industry, the Fraunhofer Institute for Solar Energy Systems ISE has modified the structure of battery electrodes so that the battery cells can store 10%–15% more energy at the same weight. They achieved this by more than tripling the coating thickness of the battery electrodes—for example, in lithium-ion batteries—which simultaneously reduces the number of current collectors in the battery cell. The research team implemented the new electrode architecture in lithium-ion pouch cells manufactured using industry-standard processes. Furthermore, they successfully applied the concept to zinc-ion and sodium-ion battery cells.
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