Conventional lithium-ion batteries contain problematic substances such as nickel and cobalt, and the solvents used to coat ...

Rust stains can be a challenge to remove from clothing, especially since iron oxide doesn't dissolve in water. Make the wrong move, and the stain could set and never fully wash out of your favorite ...

Lithium-ion batteries power everything from smartphones to electric cars, but they rely on materials that raise environmental and ethical concerns. Metals like nickel and cobalt are costly to mine, ...