{
  "node": {
    "id": "term:cell-to-chassis",
    "type": "Term",
    "label": "Cell-to-chassis",
    "properties": {
      "id": "cell-to-chassis",
      "name": "Cell-to-chassis",
      "abbr": "CTC",
      "aka": [
        "cell-to-body",
        "structural battery"
      ],
      "section": "topic-pack",
      "definition": "Integrating the cells into the vehicle floor itself, so the battery enclosure is the chassis and the cells help carry its loads. It saves mass and height but binds the battery to the car for life.",
      "related": [
        "cell-to-pack",
        "enclosure",
        "cell-to-pack-ratio"
      ],
      "url": "https://lemonergy.com/learn/glossary/cell-to-chassis/",
      "mentions": []
    }
  },
  "edges": [
    {
      "id": "edge:2970",
      "source": "term:cell-to-chassis",
      "target": "topic:topic-pack",
      "type": "belongsTo",
      "properties": {
        "sourceFile": "terms.json"
      }
    },
    {
      "id": "edge:2971",
      "source": "term:cell-to-chassis",
      "target": "term:cell-to-pack",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    },
    {
      "id": "edge:2972",
      "source": "term:cell-to-chassis",
      "target": "term:enclosure",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    },
    {
      "id": "edge:2973",
      "source": "term:cell-to-chassis",
      "target": "term:cell-to-pack-ratio",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    }
  ],
  "neighbors": [
    {
      "id": "topic:topic-pack",
      "type": "Topic",
      "label": "Modules, packs and battery management",
      "properties": {
        "id": "topic-pack",
        "name": "Modules, packs and battery management",
        "lede": "From a single cell to a working battery system, and the electronics that keep it safe.",
        "context": "Make series/parallel architecture explicit.",
        "example": "Twelve 3.6 V, 5 Ah cells in 6s2p give 21.6 V, 10 Ah and 216 Wh nominally before other restrictions.",
        "lesson_url": "https://lemonergy.com/learn/fundamentals/cell-architecture/",
        "lesson_label": "Open cell architecture"
      }
    },
    {
      "id": "term:cell-to-pack",
      "type": "Term",
      "label": "Cell-to-pack",
      "properties": {
        "id": "cell-to-pack",
        "name": "Cell-to-pack",
        "abbr": "CTP",
        "section": "topic-pack",
        "definition": "Building the pack directly from cells without the intermediate module, using large-format cells that bear load themselves. It raises the cell-to-pack ratio and cuts parts, at the cost of making the pack harder to service.",
        "related": [
          "module",
          "cell-to-pack-ratio",
          "cell-to-chassis",
          "blade-cell",
          "ab-battery-system"
        ],
        "url": "https://lemonergy.com/learn/glossary/cell-to-pack/",
        "mentions": []
      }
    },
    {
      "id": "term:enclosure",
      "type": "Term",
      "label": "Enclosure",
      "properties": {
        "id": "enclosure",
        "name": "Enclosure",
        "aka": [
          "battery housing",
          "battery tray"
        ],
        "section": "topic-pack",
        "definition": "The sealed case that carries the modules, protects them in a crash, keeps water out to an IP67 rating or better and vents gas in a thermal event. In many cars it is a structural part of the body.",
        "related": [
          "pack",
          "ip-rating",
          "cell-to-chassis",
          "venting",
          "gigacasting",
          "ul-94"
        ],
        "url": "https://lemonergy.com/learn/glossary/enclosure/",
        "mentions": []
      }
    },
    {
      "id": "term:cell-to-pack-ratio",
      "type": "Term",
      "label": "Cell-to-pack ratio",
      "properties": {
        "id": "cell-to-pack-ratio",
        "name": "Cell-to-pack ratio",
        "aka": [
          "gravimetric cell-to-pack ratio",
          "GCTP"
        ],
        "section": "topic-ratings",
        "definition": "The share of a pack’s mass or volume that is cells rather than housing, cooling, busbars and electronics. It is typically 60–75 % by mass; raising it is the point of cell-to-pack and cell-to-chassis designs.",
        "unit": "%",
        "related": [
          "cell-to-pack",
          "specific-energy",
          "pack"
        ],
        "url": "https://lemonergy.com/learn/glossary/cell-to-pack-ratio/",
        "mentions": [
          "cell-to-chassis"
        ]
      }
    }
  ]
}