Coin Cell Electrodes with Nanochains (IMAGE) Purdue University Caption A new method could allow better materials to make up battery electrodes by converting them into a nanochain structure, the black material on this copper electrode of a coin cell. Credit Purdue University image/Kayla Wiles Usage Restrictions None 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.