Silicon Germanium Nanowire (IMAGE) University of California - San Diego Caption By coating germanium nanowires with silicon, researchers led by a UC San Diego electrical engineer stopped nearly all surface diffusion of lithium ions into the nanowires. This work could lead to improved lithium-ion batteries through new electrode architectures with precise nano-scale designs. Credit UC San Diego / Electrical and Computer Engineering Usage Restrictions photo credit: UC San Diego / Electrical and Computer Engineering License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.