{
  "data_status": "synthetic_demo",
  "not_experimental_data": true,
  "random_seed": 20260923,
  "generator_version": "1.6",
  "figure_grammar_id": "li_cu_cycle_ce + li_cu_voltage_profile",
  "journal_preset": "journal_neutral_180mm",
  "variables_and_units": {
    "x": "cycle number",
    "y": "cycle-by-cycle CE (%)",
    "linked": "plating/stripping voltage (V) vs capacity (mAh cm−2)"
  },
  "sample_identity": "A/B are local teaching-model labels, not one electrolyte across unlike techniques; SIM IDs are invented records, never citations.",
  "test_conditions": "Illustrative Li||Cu repeated plating/stripping; 1 mA cm−2; 1 mAh cm−2 plated; 1 V stripping cutoff; 25 °C.",
  "source_files": [
    "data.csv",
    "profiles.csv"
  ],
  "creator": "BatteryReviewForge original code",
  "review": {
    "science": "Declared model equations/units/linked-file relations have scoped automated tests; no experimental certification.",
    "display": "Actual line/frame/alignment checks only; independent visual and author review remain pending."
  },
  "continuous_curve_style_checks": [
    {
      "panel_index": 0,
      "label": "Electrolyte A",
      "points": 300,
      "line_style": "None",
      "marker": "o",
      "colour": "#31577d",
      "sampling": "cycle_scatter"
    },
    {
      "panel_index": 0,
      "label": "Electrolyte B",
      "points": 300,
      "line_style": "None",
      "marker": "o",
      "colour": "#bc4566",
      "sampling": "cycle_scatter"
    },
    {
      "panel_index": 1,
      "label": "A · 1",
      "points": 100,
      "line_style": "-",
      "marker": "None",
      "colour": "#7396b5",
      "sampling": "continuous_solid"
    },
    {
      "panel_index": 1,
      "label": "A · 300",
      "points": 100,
      "line_style": "-",
      "marker": "None",
      "colour": "#31577d",
      "sampling": "continuous_solid"
    },
    {
      "panel_index": 1,
      "label": "B · 1",
      "points": 100,
      "line_style": "-",
      "marker": "None",
      "colour": "#885369",
      "sampling": "continuous_solid"
    },
    {
      "panel_index": 1,
      "label": "B · 300",
      "points": 100,
      "line_style": "-",
      "marker": "None",
      "colour": "#bc4566",
      "sampling": "continuous_solid"
    }
  ],
  "curve_style_check": "Cycle capacity/CE/retention are marker-only; continuous profiles are solid and unmarked; user display preference.",
  "data_frame_check": "pass: actual data axes show top/right/bottom/left spines",
  "data_frame_checks": [
    {
      "panel_index": 0,
      "spines": {
        "top": true,
        "right": true,
        "bottom": true,
        "left": true
      }
    },
    {
      "panel_index": 1,
      "spines": {
        "top": true,
        "right": true,
        "bottom": true,
        "left": true
      }
    }
  ],
  "scientific_basis": {
    "schema_version": 1,
    "model_class": "phenomenological_model",
    "data_origin": "original_synthetic",
    "parameter_origin": "self-chosen teaching values; never paper measurements",
    "validation_scope": "Declared teaching model; no experimental/material certification",
    "equations": [
      "CE=100*Qstrip/Qplate; Qplate=abs(jplate)*tplate; Qstrip=abs(jstrip)*tstrip",
      "eta_A=0.9945-0.012*exp(-(n-1)/8)-0.0008*(n/300)^2",
      "eta_B=0.991-0.018*exp(-(n-1)/9)-0.004*max((n-218)/82,0)^1.5; eta_B(n=264)-=0.0047",
      "Vstrip=b+(1-b)*f^12; b=0.045+sample_offset+0.006*n/300; end Vstrip=1 V"
    ],
    "assumptions": [
      "Chosen recoverable-charge fractions; excess Li counterelectrode so CE is not full-cell retention.",
      "Negative applied current is plating; positive is stripping; cutoff is reached at the CE-derived endpoint.",
      "Voltage is a display relation, not a fitted nucleation, SEI or depletion mechanism."
    ],
    "parameters": {
      "j_mA_cm2": 1,
      "Qplate_mAh_cm2": 1,
      "cutoff_V": 1,
      "cycles": 300,
      "sample_offset_V": {
        "A": 0,
        "B": 0.02
      }
    },
    "references": [
      {
        "url": "https://www.nature.com/articles/s41560-020-0648-z",
        "title": "Understanding and applying coulombic efficiency in lithium metal batteries",
        "supports": "CE charge accounting and protocol/cell-configuration boundaries; not the source of demo numbers.",
        "scope": "model_definition_only",
        "checked_date": "2026-10-01"
      }
    ],
    "limitations": [
      "Cannot infer dead Li versus electrolyte consumption, dendrites, full-cell life or a material benefit."
    ]
  }
}