Materials Science and NanoEngineering

A 3D model by Rice University materials scientists shows the phase evolution of a delithiating lithium iron phosphate cathode undergoing rapid discharge. The "fingerlike" shape adds stress to the system that researchers suspect can lead to cracks in the cathode that degrade the battery. (Credit: Mesoscale Materials Science Group/Rice University)

Not so fast: Some batteries can be pushed too far

Fast charge and discharge of some lithium-ion batteries with intentional defects degrades their performance and endurance, according to Rice University engineers.