New calcium battery lasts 1,000 cycles, offering lithium alternative
As the world moves toward renewable energy and electric vehicles, the need for better batteries is becoming more urgent. Today, most devices — from...
New tree-inspired cooling method could solve AI data center heat crisis
Artificial intelligence is transforming the world, but it comes with a hidden cost: enormous heat.
Modern AI data centers pack thousands of powerful processors into...
Scientists create “liquid solar battery” that works without electricity
One of the biggest challenges of renewable energy is what happens when the sun is not shining.
Solar panels produce electricity during the day, but...
Scientists identify key bottlenecks slowing sodium-ion batteries
Sodium-ion batteries are emerging as a promising alternative to today’s lithium-ion batteries.
While lithium-ion technology powers everything from smartphones to electric cars, lithium is relatively...
New compact device turns sunlight and waste heat into clean hydrogen at 28% efficiency
Hydrogen is often described as a fuel of the future because when it is used, it produces only water instead of harmful emissions.
But making...
Edison’s lost battery idea gets a high-tech comeback for the renewable energy age
At the start of the 20th century, electric cars were more common on American roads than gasoline vehicles.
In 1900, many drivers relied on lead-acid...
Why liquid metal could be the key to affordable green hydrogen
Scientists have developed a new way to produce clean hydrogen using sunlight and liquid metal, offering a promising path toward greener energy made directly...
This computer uses light instead of electricity—and it solves problems faster than quantum machines
Researchers at Queen's University have built a new kind of computer that uses light instead of electricity—and it works at room temperature, stays stable...
A new organic molecule could store renewable energy for months with almost no loss
One of the biggest challenges facing renewable energy is timing. Wind turbines and solar panels often produce electricity when it is not immediately needed.
A...
Batteries made from “rust” could be cleaner, cheaper, and surprisingly powerful
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...