{
  "node": {
    "id": "term:kilogram-force",
    "type": "Term",
    "label": "Kilogram-force",
    "properties": {
      "id": "kilogram-force",
      "name": "Kilogram-force",
      "abbr": "kgf",
      "section": "topic-units",
      "definition": "The force gravity exerts on one kilogram, 9.81 newtons. Large prismatic cells are often tested clamped at a stated fixture force, such as 300 kgf or about 2.9 kN, to hold them the way a module would.",
      "related": [
        "stack-pressure",
        "prismatic-cell",
        "swelling"
      ],
      "url": "https://lemonergy.com/learn/glossary/kilogram-force/",
      "mentions": []
    }
  },
  "edges": [
    {
      "id": "edge:belongsTo/term:kilogram-force/topic:topic-units",
      "source": "term:kilogram-force",
      "target": "topic:topic-units",
      "type": "belongsTo",
      "properties": {
        "sourceFile": "terms.json"
      }
    },
    {
      "id": "edge:relatedTo/term:kilogram-force/term:stack-pressure",
      "source": "term:kilogram-force",
      "target": "term:stack-pressure",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    },
    {
      "id": "edge:relatedTo/term:kilogram-force/term:prismatic-cell",
      "source": "term:kilogram-force",
      "target": "term:prismatic-cell",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    },
    {
      "id": "edge:relatedTo/term:kilogram-force/term:swelling",
      "source": "term:kilogram-force",
      "target": "term:swelling",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    }
  ],
  "neighbors": [
    {
      "id": "topic:topic-units",
      "type": "Topic",
      "label": "Units and electrical basics",
      "properties": {
        "id": "topic-units",
        "name": "Units and electrical basics",
        "lede": "The quantities every datasheet is written in, and how they relate.",
        "context": "Use consistent units and cell/pack basis.",
        "example": "10 A for 30 min transfers 5 Ah. At constant 3.6 V this is 18 Wh; varying voltage requires integration.",
        "lesson_url": "https://lemonergy.com/learn/fundamentals/capacity-and-c-rate/",
        "lesson_label": "Open capacity and C-rate"
      }
    },
    {
      "id": "term:stack-pressure",
      "type": "Term",
      "label": "Stack pressure",
      "properties": {
        "id": "stack-pressure",
        "name": "Stack pressure",
        "section": "topic-manufacturing",
        "definition": "Pressure applied to a cell stack, in production or in use, to keep its layers in contact. Solid-state cells depend on it, because ions can only cross where two solids touch. Large prismatic lithium-ion and sodium-ion cells are also cycle-tested at a stated pressure or fixture force, such as 0.2 MPa or 300 kgf, because swelling against the fixture affects life.",
        "unit": "MPa",
        "related": [
          "solid-state-battery",
          "solid-electrolyte",
          "compression-pad",
          "swelling",
          "kilogram-force"
        ],
        "lesson": "fundamentals/solid-state-cell-production/#contact",
        "url": "https://lemonergy.com/learn/glossary/stack-pressure/",
        "mentions": [
          "cell-stack"
        ]
      }
    },
    {
      "id": "term:prismatic-cell",
      "type": "Term",
      "label": "Prismatic cell",
      "properties": {
        "id": "prismatic-cell",
        "name": "Prismatic cell",
        "section": "topic-chemistries",
        "definition": "A cell in a rigid rectangular metal case, holding either a flattened jelly roll or stacked sheets. Large prismatic cells pack tightly into battery packs. Large prismatic cells are often named by thickness, width and height in millimetres, so a 71173207 cell is about 71 × 173 × 207 mm.",
        "related": [
          "can",
          "jelly-roll",
          "stacking",
          "cylindrical-cell",
          "pouch-cell"
        ],
        "lesson": "fundamentals/cell-production/#formats",
        "example": {
          "title": "Geometry is one constraint",
          "text": "Two rectangular cells can fit similar spaces but use different terminals and electrical ratings."
        },
        "url": "https://lemonergy.com/learn/glossary/prismatic-cell/",
        "mentions": []
      }
    },
    {
      "id": "term:swelling",
      "type": "Term",
      "label": "Swelling",
      "properties": {
        "id": "swelling",
        "name": "Swelling",
        "section": "topic-aging",
        "definition": "Growth in a cell’s thickness, reversibly as the electrodes expand on charge and irreversibly as gas and SEI accumulate. Packs allow for it with compression pads, and a sudden swell in service is a warning sign.",
        "related": [
          "gas-generation",
          "pouch-cell",
          "silicon-anode",
          "stack-pressure",
          "compression-pad",
          "swelling-test"
        ],
        "url": "https://lemonergy.com/learn/glossary/swelling/",
        "mentions": [
          "sei"
        ]
      }
    }
  ]
}