The Scanning Electron Microscope (SEM for short) is a high-resolution microscope that uses an electron beam to scan the surface of a sample and acquires information about the surface morphology and composition of the sample by detecting the signals generated from the interaction between the sample and the electron beam.
In the research and development of new energy lithium-ion batteries, SEM has a wide range of applications. The following are some of the main application scenarios: interface structure research, defect identification, component analysis, battery failure analysis, monitoring of the electrode material preparation process, battery separator analysis, nanoscale structure characterization, structural changes after battery cycling, and safety research. These pieces of information are of great significance for evaluating the performance and quality of batteries.