10 years ago
Scientists discover the reason that batteries lose capacity over time: Nanocrystals!
In the struggle to develop better batteries, it’s the overall capacity that tends to get most of the attention — we marvel when a new smartphone crams in a few more milliamp-hours. Capacity is nothing without the longevity to survive a large number of repeated charging cycles, though. Even the most advanced lithium-ion batteries still lose capacity as they age, and there’s no way to prevent that until we know the cause, which we might thanks to two new studies from the US Department of Energy.
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