The Use of Laser Particle Size Analysis in Lithium Batteries The research and development of cathode materials for lithium batteries have slowly gained global attention, thanks to the rapid advancement of new kinds of energy, particularly for smart wearable devices and the vehicle sector. The development of cost-effective lithium-ion battery cathode materials that deliver high safety performance, have an excellent capacity and offer a long-life cycle is one of the major fields of research. The attempts made in this field have become the major focus of the battery sector and are in a state of quick development. Statistics have reported that within the vehicle sector, lithium-ion batteries were at a full production schedule at the start of January 2021, and that there was a phenomenal growth in year-end orders.