By adjusting the heating process when making lithium-ion cathodes, the team created batteries that retained nearly 93% of their energy after 500 cycles. 

Now, we’re turning up the energy. The high-energy upgrade to LCLS will extend its ultrafast megahertz capability into the “hard,” or high-energy, X-ray regime.   

Researchers reveal why trace amounts of alloy added to some catalysts keep them performing better over time. The study suggests models that could boost...