High energy density batteries could potentially outperform lithium-ion batteries
, could enable electric vehicles to run longer on a single charge and would be cheaper to manufacture, while having a positive impact on the environment.
When used in a conventional lithium-ion battery, aluminum fractures and fails within a few charge-discharge cycles due to expansion and contraction as lithium travels in and out of the material. Developers concluded that aluminum wasn’t a viable battery material, and the idea was largely abandoned. Researchers have added small amounts of other materials to aluminum to create foils with particular “microstructures,” or arrangements of different materials. The engineers tested more than 100 different materials to understand how they would behave in batteries.
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