{
  "node": {
    "id": "term:aircraft-battery-certification",
    "type": "Term",
    "label": "Aircraft battery certification",
    "properties": {
      "id": "aircraft-battery-certification",
      "name": "Aircraft battery certification",
      "aka": [
        "EASA SC E-19",
        "SC E-19",
        "AC 20-184A",
        "FAA AC 20-184"
      ],
      "section": "topic-standards-vehicle",
      "definition": "The approval route for batteries on aircraft. In the US, advisory circular AC 20-184A, reissued in 2026, gives an accepted way to show that installed rechargeable lithium batteries are safe, including thermal-runaway containment demonstrated with every cell in runaway. In Europe, EASA’s Special Condition SC E-19 sets requirements for electric and hybrid propulsion systems, including the propulsion battery and its management system.",
      "related": [
        "rtca-do-311a",
        "rtca-do-160",
        "thermal-runaway",
        "thermal-propagation",
        "bms"
      ],
      "url": "https://lemonergy.com/learn/glossary/aircraft-battery-certification/",
      "mentions": []
    }
  },
  "edges": [
    {
      "id": "edge:6311",
      "source": "term:aircraft-battery-certification",
      "target": "topic:topic-standards-vehicle",
      "type": "belongsTo",
      "properties": {
        "sourceFile": "terms.json"
      }
    },
    {
      "id": "edge:6312",
      "source": "term:aircraft-battery-certification",
      "target": "term:rtca-do-311a",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    },
    {
      "id": "edge:6313",
      "source": "term:aircraft-battery-certification",
      "target": "term:rtca-do-160",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    },
    {
      "id": "edge:6314",
      "source": "term:aircraft-battery-certification",
      "target": "term:thermal-runaway",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    },
    {
      "id": "edge:6315",
      "source": "term:aircraft-battery-certification",
      "target": "term:thermal-propagation",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    },
    {
      "id": "edge:6316",
      "source": "term:aircraft-battery-certification",
      "target": "term:bms",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    }
  ],
  "neighbors": [
    {
      "id": "topic:topic-standards-vehicle",
      "type": "Topic",
      "label": "Vehicle and transport standards",
      "properties": {
        "id": "topic-standards-vehicle",
        "name": "Vehicle and transport standards",
        "lede": "The regulations and standards a vehicle battery must meet to be approved, and the rules for shipping batteries by road, sea and air.",
        "context": "Check issuing organization, edition, scope and market.",
        "example": "Shipping tests and vehicle battery approval tests address different uses; passing one does not automatically satisfy another.",
        "lesson_url": "https://lemonergy.com/learn/fundamentals/battery-basics/",
        "lesson_label": "Open battery basics"
      }
    },
    {
      "id": "term:rtca-do-311a",
      "type": "Term",
      "label": "RTCA DO-311A",
      "properties": {
        "id": "rtca-do-311a",
        "name": "RTCA DO-311A",
        "aka": [
          "DO-311A",
          "TSO-C179b"
        ],
        "section": "topic-standards-vehicle",
        "definition": "RTCA’s minimum operational performance standard for rechargeable lithium batteries and battery systems on aircraft, released in 2017. It sets design requirements and tests, including a thermal-runaway containment test, and is the performance standard behind the FAA’s technical standard order TSO-C179b for such batteries.",
        "related": [
          "aircraft-battery-certification",
          "rtca-do-160",
          "thermal-runaway",
          "thermal-propagation",
          "abuse-testing"
        ],
        "url": "https://lemonergy.com/learn/glossary/rtca-do-311a/",
        "mentions": []
      }
    },
    {
      "id": "term:rtca-do-160",
      "type": "Term",
      "label": "RTCA DO-160",
      "properties": {
        "id": "rtca-do-160",
        "name": "RTCA DO-160",
        "aka": [
          "EUROCAE ED-14",
          "DO-160"
        ],
        "section": "topic-standards-vehicle",
        "definition": "RTCA’s environmental test procedures for airborne equipment — temperature, altitude, humidity, vibration, shock, power input, lightning, electromagnetic emissions and susceptibility, flammability and more — published in Europe as EUROCAE ED-14. Aircraft batteries and their electronics, like any airborne equipment, are qualified against the test categories it defines.",
        "related": [
          "rtca-do-311a",
          "aircraft-battery-certification",
          "vibration-test",
          "iso-16750"
        ],
        "url": "https://lemonergy.com/learn/glossary/rtca-do-160/",
        "mentions": [
          "flammability"
        ]
      }
    },
    {
      "id": "term:thermal-runaway",
      "type": "Term",
      "label": "Thermal runaway",
      "properties": {
        "id": "thermal-runaway",
        "name": "Thermal runaway",
        "section": "topic-safety",
        "definition": "Self-accelerating heating in a cell: heat speeds up reactions that release more heat, until the cell vents, catches fire or ruptures. An internal short, overcharge or external heating can trigger it.",
        "related": [
          "onset-temperature",
          "thermal-propagation",
          "venting",
          "separator-shutdown",
          "thermal-runaway-energy",
          "exothermic"
        ],
        "lesson": "fundamentals/cell-anatomy/#short-circuit",
        "url": "https://lemonergy.com/learn/glossary/thermal-runaway/",
        "mentions": [
          "overcharge"
        ]
      }
    },
    {
      "id": "term:thermal-propagation",
      "type": "Term",
      "label": "Thermal propagation",
      "properties": {
        "id": "thermal-propagation",
        "name": "Thermal propagation",
        "section": "topic-safety",
        "definition": "Thermal runaway spreading from one cell to its neighbours through conducted heat, hot gas and flame. Pack designs are judged by whether, and how slowly, a single failing cell takes the rest with it.",
        "related": [
          "thermal-runaway",
          "thermal-barrier",
          "venting",
          "module",
          "propagation-test"
        ],
        "url": "https://lemonergy.com/learn/glossary/thermal-propagation/",
        "mentions": []
      }
    },
    {
      "id": "term:bms",
      "type": "Term",
      "label": "Battery management system",
      "properties": {
        "id": "bms",
        "name": "Battery management system",
        "abbr": "BMS",
        "section": "topic-pack",
        "definition": "The electronics and software that keep a battery inside its safe window: measuring every cell voltage and many temperatures, estimating SOC and SOH, balancing cells, computing current limits, controlling the contactors and reporting over the vehicle network.",
        "related": [
          "state-of-charge",
          "cell-balancing",
          "state-of-power",
          "cell-supervision-circuit",
          "contactor",
          "can-bus"
        ],
        "lesson": "fundamentals/battery-basics/#cell-module-pack",
        "url": "https://lemonergy.com/learn/glossary/bms/",
        "mentions": [
          "state-of-health",
          "cell-voltage"
        ]
      }
    }
  ]
}