Energy & Green Tech

Researchers work toward harnessing ocean energy to power devices

Tsunamis, hurricanes, and maritime weather are monitored using sensors and other devices on platforms in the ocean to help keep coastal communities safe—until the batteries on these platforms run out of juice. Without power, ...

Engineering

Researchers zoom in on battery wear and tear

From the moment you first use it, a new lithium-ion battery is degrading. After a few hundred charge cycles, you'll notice—your phone, laptop or electric car battery wears out more quickly. Eventually, it stops holding ...

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Electrode

An electrode is an electrical conductor used to make contact with a nonmetallic part of a circuit (e.g. a semiconductor, an electrolyte or a vacuum). The word was coined by the scientist Michael Faraday from the Greek words elektron (meaning amber, from which the word electricity is derived) and hodos, a way.

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