Prompt Description

1. Illustration of a simplified battery cross-section: Lithium metal anode | Electrolyte/Separator | NCM811 cathode. 2. Ideal working process (dynamic schematic or step-by-step diagram): - During charging: Arrows indicate Li⁺ deintercalation from the cathode, traversing the electrolyte, and gaining electrons at the lithium anode surface, depositing as new metallic lithium. Simultaneously, the lithium anode thickens. - During discharging: Arrows indicate Li⁺ dissolution from the lithium metal anode, traversing the electrolyte, and re-intercalating into the cathode. The lithium anode thins. 3. Introduction of key interfaces (SEI/CEI) (highlight the two layers in the illustration): Draw an SEI layer on the lithium metal surface and a CEI layer on the surface of the cathode material particles.