“Ion highway” electrodes drive development of batteries that charge in seconds

Supercapacitors can charge and release energy much faster than batteries, but they can’t store as much. Now a team at Drexel University has used the two-dimensional material MXene to develop a new type of electrode, combining the capacitance of a regular battery with the speed of a supercapacitor, which could lead to devices that recharge in a matter of seconds.

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