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Both powerful and unstable, practical lithium metal batteries have remained a difficult challenge for over 50 years. With severe ion depletion gradients in the electrolyte during charging, they rapidly develop porosity, dendrites, and dead Li that cause poor performance and, all too often, spectacular failure. Remarkably, incorporating a small, 100 MHz surface acoustic wave device (SAW) solves this...
In article number 1907516, James Friend and co‐workers present the use of acoustic waves to produce electrolyte flow in lithium‐metal batteries, enabling their rapid recharging without fear of damage. The surface acoustic wave device at the bottom produces 100 MHz waves across its surface, which leads to electrolyte transport between the anode and cathode, suppressing lithium‐ion depletion during...
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