{
  "data_status": "synthetic_demo",
  "not_experimental_data": true,
  "random_seed": 20260923,
  "generator_version": "1.6",
  "figure_grammar_id": "FULL_PROFILE_01",
  "journal_preset": "journal_neutral_180mm",
  "variables_and_units": {
    "x": "cycle number",
    "y": "discharge capacity (mAh g−1)",
    "linked": "voltage (V) vs specific capacity (mAh g−1) at declared cycles"
  },
  "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 NMC811||Li half-cell; 0.5 C; 2.8–4.3 V; 25 °C; cathode 3 mAh cm−2. These are invented settings, not a test report.",
  "source_files": [
    "data.csv",
    "voltage_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": 500,
      "line_style": "None",
      "marker": "o",
      "colour": "#31577d",
      "sampling": "cycle_scatter"
    },
    {
      "panel_index": 0,
      "label": "Electrolyte B",
      "points": 500,
      "line_style": "None",
      "marker": "o",
      "colour": "#bc4566",
      "sampling": "cycle_scatter"
    },
    {
      "panel_index": 1,
      "label": "1",
      "points": 180,
      "line_style": "-",
      "marker": "None",
      "colour": "#c6d7e6",
      "sampling": "continuous_solid"
    },
    {
      "panel_index": 1,
      "label": "100",
      "points": 180,
      "line_style": "-",
      "marker": "None",
      "colour": "#92b4d0",
      "sampling": "continuous_solid"
    },
    {
      "panel_index": 1,
      "label": "300",
      "points": 180,
      "line_style": "-",
      "marker": "None",
      "colour": "#6389aa",
      "sampling": "continuous_solid"
    },
    {
      "panel_index": 1,
      "label": "500",
      "points": 180,
      "line_style": "-",
      "marker": "None",
      "colour": "#31577d",
      "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": [
      "a_n=(1-a0*exp(-(n-1)/tau_a))*exp(-k*(n-1)-k_late*max(n-n_late,0)^2)",
      "Qdis_n=Q0*a_n; eta_n=1-l_ss-l_tr*exp(-(n-1)/tau_CE)",
      "Qchg_n=Qdis_n/eta_n; CE_n=100*Qdis_n/Qchg_n; side_charge_n=Qchg_n-Qdis_n",
      "s(f)=0.55*f+0.45*f^7; Vdis=4.3-1.5*s(f); Vchg=2.8+1.5*s(f)"
    ],
    "assumptions": [
      "Excess lithium counterelectrode remains available; no finite Li inventory bottleneck is imposed.",
      "Accessible cathode activity and external coulombic loss are separate chosen functions.",
      "The active fraction is a positive phenomenological display law, not a fitted NMC811 mechanism; CE products cannot predict this capacity.",
      "Specific capacity uses cathode active-material mass; voltage endpoints respect the declared window."
    ],
    "parameters": {
      "count_cycles": 500,
      "A": {
        "initial_capacity": 184,
        "activation_fraction": 0.012,
        "activation_cycles": 3,
        "fade_per_cycle": 0.00012,
        "late_fade_per_cycle2": 2e-06,
        "late_fade_start": 350,
        "steady_ce_loss": 0.0006,
        "transient_ce_loss": 0.004,
        "ce_decay_cycles": 4
      },
      "B": {
        "initial_capacity": 182,
        "activation_fraction": 0.018,
        "activation_cycles": 4,
        "fade_per_cycle": 0.00024,
        "late_fade_per_cycle2": 3.5e-06,
        "late_fade_start": 350,
        "steady_ce_loss": 0.001,
        "transient_ce_loss": 0.006,
        "ce_decay_cycles": 4
      },
      "voltage_window_V": [
        2.8,
        4.3
      ]
    },
    "references": [
      {
        "url": "https://www.nature.com/articles/s41467-025-60833-y",
        "title": "Deciphering coulombic loss in lithium-ion batteries and beyond",
        "supports": "Coulombic loss, electrode compensation and capacity fade are distinct; does not provide the numerical activity model.",
        "scope": "model_definition_only",
        "checked_date": "2026-10-01"
      },
      {
        "url": "https://www.nature.com/articles/s41560-020-0648-z",
        "title": "Understanding and applying coulombic efficiency in lithium metal batteries",
        "supports": "Excess-Li half-cell versus full-cell interpretation boundaries; all demo values are original.",
        "scope": "model_definition_only",
        "checked_date": "2026-10-01"
      }
    ],
    "limitations": [
      "No NMC811 material performance, cycle-life forecast, electrode mechanism or lithium reservoir mass is inferred.",
      "Legacy resource_id full_cell is retained for file compatibility; this gallery example is a half-cell, not the full-cell recipe."
    ]
  }
}