Home Energy Page 94

Energy

Graphene, perovskites, and silicon — an ideal tandem for efficient solar cells

Graphene Flagship researchers successfully combined graphene with tandem perovskite-silicon solar cells to achieve efficiencies of up to 26.3%. Moreover, they envisioned a new manufacturing method...

Potassium metal battery emerges as a rival to lithium-ion technology

From smartphones to solar power, to electric cars, humanity is increasingly dependent on batteries. As demand for safe, efficient, and powerful energy storage continues to...

Data centers aren’t the energy hogs we thought

Although demand for data has increased rapidly, massive efficiency gains by data centers have kept their energy use roughly flat over the past decade,...

Data centers use less energy than you think

If the world is using more and more data, then it must be using more and more energy, right? Not so, says a comprehensive...

Scientists develop simple self-charging battery to power electronic devices

A new type of battery combines negative capacitance and negative resistance within the same cell, allowing the cell to self-charge without losing energy. This has...

8 tips to make your gadget’s battery last longer

These best practices can make the lithium-ion batteries in your devices last longer, researchers say. Researchers plowed through scores of academic papers and manufacturers’ user...

New device brings lithium metal batteries one step closer to commercial use

Researchers at the University of California San Diego developed an ultrasound-emitting device that brings lithium metal batteries, or LMBs, one step closer to commercial...

Scientists develop safer lead-based perovskite solar cell

Researchers at Northern Illinois University and the U.S. Department of Energy's (DOE) National Renewable Energy Laboratory (NREL) in Golden, Colorado, are reporting in the...

How hydropower can help get more wind and solar on the grid

As the world adds fields of wind turbines and solar panels to generate more clean energy, electric grid operators are looking for ways to...

Scientists solve major safety issue with lithium metal batteries

A Washington State University research team has developed a way to address a major safety issue with lithium metal batteries - an innovation that...