Lithium-ion cells for electric vehicle batteries 2023 IM Imagery/Shutterstock
Cheap ultrasound sensors costing just dollars or pennies could reveal defects or damage in the lithium-ion batteries used by smartphones, laptops and electric vehicles 鈥 before those issues cause safety problems or lead to expensive recalls.
鈥淚t鈥檚 a really powerful tool to see what’s inside these lithium-ion cells in a low-cost and low-computational way,鈥 says at the University of Sheffield in the UK.
Lithium-ion batteries power many modern technologies, but they occasionally catch fire. The lithium-ion…



