Battery

Once a mine has been exhausted of its ore, there's really no use for it anymore – it just becomes an abandoned hole in the ground. According to a new study, however, the shafts of such mines could serve in energy-storing gravity batteries.

The excellent energy density of lithium metal could enable batteries to power smartphones for days, and by designing a new electrolyte that can be controlled via magnetic fields, scientists have now edged this technology a little closer to reality.

A new solid-state battery design points to a new solution to the technology's stability issues, with researchers developing a novel electrode material that retains its volume throughout charging to enable the battery to endure hundreds of cycles.

An international team of scientists eyeing next-generation energy storage solutions have demonstrated an eco-friendly and low-cost battery with some exciting potential, which includes a fourfold increase on energy capacity over lithium-ion batteries.

Scientists at Stanford University have cooked up a new electrolyte recipe that tackles battery flammability in a highly promising way, leaning on extra salt content to circumvent problematic chemical reactions.

Branch-like growths called dendrites continue to plague next-gen battery designs of many types, but new MIT-led research claims to have uncovered the root of the problem, and shown how it can be negated through the use of mechanical stress.

A new electric energy storage solution from Morand could offer electric city car charging times that undercut gas fill-ups. Its eTechnology hybrid batteries also offer the possibility of much longer battery lifespan.

Scientists tinkering with commonly used battery materials have come up with a way of tweaking their microstructures to improve energy density, pointing the way to electric vehicles that can travel farther on each charge.

Scientists at Penn State University have operated at the cutting-edge of battery technology for some time and are now presenting another significant breakthrough, demonstrating a high-density device that can be charged up in around 10 minutes.

Batteries that make use of sodium as an electrode material are showing exciting promise by some key measures when it comes to next-generation energy storage solutions, and new research has now edged them closer to mainstream use.

The Chinese city of Dalian has just switched on a world-leading new energy storage system, expected to supply enough power for up to 200,000 residents each day, with an initial capacity of 400 MWh and output of 100 MW.

Scientists experimenting with key components in lithium batteries have come up with a promising new design that could see electric vehicles charge much faster, and offer twice the range at the same time.