Evaluation of Laser Induced Breakdown Spectroscopy (LIBS) for Analyzing Li-Ion Battery Components

摘要

The evaluation of LIBS (Laser Induced Breakdown Spectroscopy) to perform quantitative measurements on battery materials, depth-profiling measurements on solid-state batteries, display chemical maps that represent chemical distribution by depth, and ability to acquire quantitative data will be presented. These types of analyses can be useful for new battery design-structures, and quality control to assess potential contamination. Typical solution-based elemental analysis techniques, such as ICP-OES and ICP-MS, cannot reveal structural information of these components. XRF, another popular elemental analysis technique, cannot provide sensitivity coverage for important elements of Li-ion battery-electrodes matrices, such as Li,C,H,O,F, and N. Alternative surface and depth-profiling analysis techniques, like SIMS, GD-MS, Spark-OES, and XPS, require complex vacuum instrumentation, suffer from low measurement throughputs, and/or are expensive.