Silicon-Carbon Batteries Set a New Capacity Standard for Flagship Phones

For more than a decade, progress in lithium-ion battery technology has felt stagnant next to the rapid advance of processors and touchscreens. Silicon-carbon anode composites finally deliver the capacity leap that has long been promised.

In theory, silicon can hold ten times more lithium ions than conventional graphite. Through nanoscale engineering, manufacturers have overcome the volume expansion silicon undergoes while charging.

Smartphones less than 8 millimeters thick can now pack a 6,000 mAh battery while keeping their charge cycle life above 1,000 cycles.

The innovation delivers two full days of battery life under normal use, ending the anxiety of running out of power in the middle of a busy day.