Energy & Green Tech

Salt battery harvests osmotic energy where the river meets the sea

Estuaries—where freshwater rivers meet the salty sea—are great locations for birdwatching and kayaking. In these areas, waters containing different salt concentrations mix and may be sources of sustainable, "blue" osmotic ...

Energy & Green Tech

An ultralow-concentration electrolyte for lithium-ion batteries

Lithium salts make batteries powerful but expensive. An ultralow-concentration electrolyte based on the lithium salt LiDFOB may be a more economical and more sustainable alternative. Cells using these electrolytes and conventional ...

Engineering

Greater access to clean water, thanks to a better membrane

Water scarcity around the world is a bigger problem than ever, and desalination is critical to solving it. The best available technologies for separating salt from seawater, though, are costly and require a great deal of ...

page 2 from 18