Berkeley Lab scientists create microcapacitors with ultrahigh energy and power density. The microcapacitors are made with engineered thin films of hafnium oxide and zirconium oxide. The technology ...

Researchers at the University of Hong Kong (HKU) have developed a quasi-solid-state magnesium-ion battery with a voltage plateau at 2.4 V and an energy density of 264 Wh/kg. It surpasses the ...

Scientists have developed a model capable of predicting the cycle lives of high-energy-density lithium-metal batteries by applying machine learning methods to battery performance data. The model ...

Amprius began shipping its remarkable silicone-anode batteries in 2022, laying claim to the world's highest-density battery cells along the way. It's now focusing attention on a unique use case: a ...

As the federal government reimagines American energy policy this year, support for projects hinges on a new metric — density. The concept of density in energy production echoes throughout recent ...