◆SEM can be used to observe the surface morphology of lithium-ion battery electrode materials, including particle size, porosity and microstructure. These characteristics are critical to understanding the charge-discharge behavior and electrochemical properties of batteries.

◆Through SEM, researchers can study the interface structure between the electrode in detail, as well as the changes in the interface during battery cycling, which helps to reveal the battery failure mechanism.

◆SEM can be used to detect cracks, holes, and other microdefects in the electrode material, and these defects may affect the mechanical stability and electrochemical properties of the battery.

◆The scanning electron microscope can be used to detect the raw materials and manufacturing process of lithium batteries, including anode, cathode, diaphragm and other materials. It can also be used to observe the dispersion of slurry active substances, conductive agents and adhesives, the surface state of the pole piece material after it is rolled, and the size of the metal burr on the edge of the pole piece after it is slit.

◆The particle size of ternary materials and lithium iron phosphate materials has an important impact on the final performance. Proper particle size and distribution will increase the tap density by filling the vacancies of large particles with small particles, which will affect the cycle life of the battery. The micro topography, particle size, distribution and surface state of precursors and ternary materials can be analyzed by SEM to evaluate their electrochemical properties and application potential.

◆The pore structure of the battery diaphragm is crucial for ion transport. SEM can be used to evaluate the microstructure and porosity of the diaphragm to optimize the design and performance of the diaphragm.