{
  "node": {
    "id": "term:gbt-31467",
    "type": "Term",
    "label": "GB/T 31467",
    "properties": {
      "id": "gbt-31467",
      "name": "GB/T 31467",
      "aka": [
        "GB/T 31467.1",
        "GB/T 31467.2",
        "GB/T 31467.3"
      ],
      "section": "topic-standards-vehicle",
      "definition": "China’s national standard of test methods for the electrical performance of lithium-ion traction battery packs and systems. The 2023 edition merged the former part 1, for high-power packs, and part 2, for high-energy packs; the former safety part, GB/T 31467.3, was superseded by the mandatory GB 38031.",
      "related": [
        "gb-38031",
        "gbt-31485",
        "iso-12405",
        "pack",
        "capacity-test",
        "qct-743"
      ],
      "url": "https://lemonergy.com/learn/glossary/gbt-31467/",
      "mentions": []
    }
  },
  "edges": [
    {
      "id": "edge:6225",
      "source": "term:gbt-31467",
      "target": "topic:topic-standards-vehicle",
      "type": "belongsTo",
      "properties": {
        "sourceFile": "terms.json"
      }
    },
    {
      "id": "edge:6226",
      "source": "term:gbt-31467",
      "target": "term:gb-38031",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    },
    {
      "id": "edge:6227",
      "source": "term:gbt-31467",
      "target": "term:gbt-31485",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    },
    {
      "id": "edge:6228",
      "source": "term:gbt-31467",
      "target": "term:iso-12405",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    },
    {
      "id": "edge:6229",
      "source": "term:gbt-31467",
      "target": "term:pack",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    },
    {
      "id": "edge:6230",
      "source": "term:gbt-31467",
      "target": "term:capacity-test",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    },
    {
      "id": "edge:6231",
      "source": "term:gbt-31467",
      "target": "term:qct-743",
      "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:gb-38031",
      "type": "Term",
      "label": "GB 38031",
      "properties": {
        "id": "gb-38031",
        "name": "GB 38031",
        "section": "topic-standards-vehicle",
        "definition": "China’s mandatory national safety standard for electric-vehicle traction batteries. Its 2025 revision, mandatory from July 2026, requires that a single-cell thermal runaway produce no fire or explosion in the pack, going beyond the five-minute warning of earlier rules.",
        "related": [
          "gtr-20",
          "thermal-propagation",
          "propagation-test",
          "gb-18384",
          "gbt-38661"
        ],
        "url": "https://lemonergy.com/learn/glossary/gb-38031/",
        "mentions": [
          "thermal-runaway"
        ]
      }
    },
    {
      "id": "term:gbt-31485",
      "type": "Term",
      "label": "GB/T 31485",
      "properties": {
        "id": "gbt-31485",
        "name": "GB/T 31485",
        "section": "topic-standards-vehicle",
        "definition": "China’s 2015 safety standard for lithium-ion and nickel–metal hydride traction cells and modules, with abuse tests such as overcharge, over-discharge, short circuit, drop, heating, crush and nail penetration, plus seawater immersion and low pressure for cells. Together with GB/T 31467.3 for packs, it was superseded in 2021 by the mandatory GB 38031.",
        "related": [
          "gb-38031",
          "gbt-31467",
          "abuse-testing",
          "nail-penetration",
          "crush-test",
          "nickel-metal-hydride"
        ],
        "url": "https://lemonergy.com/learn/glossary/gbt-31485/",
        "mentions": [
          "overcharge",
          "over-discharge",
          "short-circuit"
        ]
      }
    },
    {
      "id": "term:iso-12405",
      "type": "Term",
      "label": "ISO 12405",
      "properties": {
        "id": "iso-12405",
        "name": "ISO 12405",
        "section": "topic-standards-vehicle",
        "definition": "The international standard for testing lithium-ion battery packs and systems in electric vehicles, covering performance, reliability and abuse at pack level. Part 4 is the current performance specification.",
        "related": [
          "iec-62660",
          "pack",
          "testing",
          "un-r100",
          "iso-6469"
        ],
        "url": "https://lemonergy.com/learn/glossary/iso-12405/",
        "mentions": [
          "lithium-ion"
        ]
      }
    },
    {
      "id": "term:pack",
      "type": "Term",
      "label": "Battery pack",
      "properties": {
        "id": "pack",
        "name": "Battery pack",
        "section": "topic-pack",
        "definition": "The complete battery as installed: modules or cells, the BMS, contactors and fuses, busbars, cooling, sensors and an enclosure. Its energy is the sum of its cells’ energies; its mass and volume are a good deal more.",
        "related": [
          "module",
          "bms",
          "battery-disconnect-unit",
          "thermal-management",
          "cell-to-pack-ratio",
          "enclosure"
        ],
        "lesson": "fundamentals/battery-basics/#cell-module-pack",
        "url": "https://lemonergy.com/learn/glossary/pack/",
        "mentions": []
      }
    },
    {
      "id": "term:capacity-test",
      "type": "Term",
      "label": "Capacity test",
      "properties": {
        "id": "capacity-test",
        "name": "Capacity test",
        "section": "topic-testing",
        "definition": "A defined capacity test with specified charge, rest, discharge and cutoff conditions, usually a full CC-CV charge, a rest, and a C/3 or lower discharge to the lower cutoff at 25 °C. The delivered ampere-hours are the cell’s measured capacity.",
        "related": [
          "nominal-capacity",
          "cc-cv-charging",
          "cutoff-voltage",
          "reference-performance-test",
          "rate-test"
        ],
        "lesson": "fundamentals/capacity-and-c-rate/#nominal-capacity",
        "url": "https://lemonergy.com/learn/glossary/capacity-test/",
        "mentions": []
      }
    },
    {
      "id": "term:qct-743",
      "type": "Term",
      "label": "QC/T 743",
      "properties": {
        "id": "qct-743",
        "name": "QC/T 743",
        "aka": [
          "QC/T 743-2006"
        ],
        "section": "topic-standards-vehicle",
        "definition": "China’s 2006 automotive-industry standard for lithium-ion batteries in electric vehicles, written around 3.6 V cells and modules built from them, with performance tests and abuse tests such as overcharge, short circuit, heating and crush. It is now listed as obsolete; traction batteries in China are tested to national standards such as GB 38031.",
        "related": [
          "gb-38031",
          "gbt-31485",
          "gbt-31467",
          "abuse-testing"
        ],
        "url": "https://lemonergy.com/learn/glossary/qct-743/",
        "mentions": [
          "overcharge",
          "short-circuit"
        ]
      }
    }
  ]
}