Figure 1 (IMAGE) Science China Press Caption Schematic of the Galton Board model. When the small balls accumulate in the various bins at the bottom, their distribution in each of the bins will approximate the normal distribution curve. The transmission of lithium ions in the COF-LZU1 coating layer can be considered similar to the beads passing through the Galton Board, thereby obtaining a uniform distribution of lithium ions at the COF/Li metal interface. Credit ©Science China Press Usage Restrictions Use with credit. 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.