Engineering

Sound-powered sensors stand to save millions of batteries

Sensors that monitor infrastructure, such as bridges or buildings, or are used in medical devices, such as prostheses for the deaf, require a constant supply of power. The energy for this usually comes from batteries, which ...

Energy & Green Tech

Generating clean electricity with chicken feathers

The food industry generates enormous amounts of waste and by-products, including from poultry production. Each year, some 40 million metric tons of chicken feathers are incinerated. This not only releases large amounts of ...

Energy & Green Tech

Efficient and mild: Recycling of used lithium-ion batteries

Lithium-ion batteries (LIBs) provide our portable devices like tablets and mobiles—and increasingly also vehicles—with power. As the share of volatile renewable energy needing electricity storage increases, more and more ...

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