Energy & Green Tech

Sodium-based batteries could make your smartphone cheaper and cleaner

Sodium—one of the elements that make up table salt—could soon make cellphone batteries much cheaper and cleaner. That's the goal of Chongwu Zhou, a professor of electrical engineering at the USC Viterbi School of Engineering.

Engineering

A self-healing sweat sensor

Wearable sensors that track heart rate or steps are popular fitness products. But in the future, working up a good sweat could provide useful information about a person's health. Now, researchers reporting in ACS Applied ...

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