Race for potassium batteries hots up
Research addresses problems with potential lithium rival.
Battery technology based on potassium could be the key to storing energy from renewables, according to a team of scie...
Next-gen solar cells perk up with coffee
Joke turns real as caffeine improves perovskite performance.
Perovskite may become the go-to material for manufacturing solar cells, thanks to a hit of caffeine. Scientists have...
Turning CO2 into coal at room temperature
It could revolutionise carbon capture and storage.
Researchers have used liquid metals to turn carbon dioxide (CO2) back into solid coal with technology they say has th...
A new source of electrical energy
Proof-of-concept holds great promise.
It sounds like something from the 1960s, but the “bionic mushroom” could be a tantalising glimpse of the future. US ...
What is radioactivity?
A source of immense energy with a long and dangerous history.
We owe the discovery of radioactivity to bad weather. French physicist Henri Becquerel was trying to study fluorescen...
How solar cells turn sunlight into electricity
In 2015, around 500,000 solar panels were installed daily around the world.
Renewables have overtaken coal as the world’s largest source of electricity generation capacity. And about 30% of tha...
Generating solar electricity at night
Mirrors use energy from the sun when it's not shining.
One of the biggest issues facing renewable energy has been generating power during periods of unfavourable weather or...
Energy from thermoelectricity
It may be possible to recycle heat from computers and cars as electric power.
Capturing the heat from your car’s exhaust or your computer and turning it into power has just become a hot prospect....