graph TD subgraph Synergistic_Analysis [CV/EIS Synergistic Diagnosis Logic] direction TB A[High-Voltage Cycling] --> B{Macro Phenomenon} A --> C{Impedance Features} B -->|CV Test| B1[Irrev. Oxidation Peak] B -->|CV Test| B2[Increased ΔEp Separation] C -->|EIS/DRT| C1[High-Freq Arc Expansion] C -->|EIS/DRT| C2[Sharp Increase in Rct] B1 -.->|Indicates| D[Micro Mechanism] C1 -.->|Confirms| D D --> D1[Electrolyte Oxidation] D --> D2[Transition Metal Dissolution] D1 --> E[CEI Film Thickening] D2 --> E E ==>|Conclusion| F[Kinetic Decay & Capacity Fade] end style A fill:#f9f,stroke:#333,stroke-width:2px style F fill:#bbf,stroke:#333,stroke-width:2px,stroke-dasharray: 5 5 style D fill:#ff9,stroke:#333