What do water bottles, eggs, hemp, and cement have in common? They can be engineered into strange, but functional, energy storage devices called supercapacitors.
Like their name suggests, supercapacitors are like capacitors with greater capacity. Similar to a battery, they can store a lot of energy, but they can also charge or discharge quickly, similar to a capacitor. They’re usually found where a lot of power is needed quickly and for a limited time, like as a nearly-instantaneous backup electricity…
