{
  "node": {
    "id": "term:dew-point",
    "type": "Term",
    "label": "Dew point",
    "properties": {
      "id": "dew-point",
      "name": "Dew point",
      "section": "topic-manufacturing",
      "definition": "The temperature at which the water vapour in air would start to condense, the standard way of specifying dry-room humidity. A −40 °C dew point corresponds to about 0.5 % relative humidity at room temperature.",
      "unit": "°C",
      "related": [
        "dry-room",
        "moisture-content"
      ],
      "url": "https://lemonergy.com/learn/glossary/dew-point/",
      "mentions": [
        "relative-humidity"
      ]
    }
  },
  "edges": [
    {
      "id": "edge:2382",
      "source": "term:dew-point",
      "target": "topic:topic-manufacturing",
      "type": "belongsTo",
      "properties": {
        "sourceFile": "terms.json"
      }
    },
    {
      "id": "edge:2383",
      "source": "term:dew-point",
      "target": "term:dry-room",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    },
    {
      "id": "edge:2384",
      "source": "term:dew-point",
      "target": "term:moisture-content",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    },
    {
      "id": "edge:mentions/dew-point/relative-humidity",
      "source": "term:dew-point",
      "target": "term:relative-humidity",
      "type": "mentions",
      "properties": {
        "sourceFile": "terms.json",
        "method": "build_glossary.mention_index + mentions",
        "field": "definition",
        "meaning": "Text mention; not a causal claim"
      }
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  ],
  "neighbors": [
    {
      "id": "topic:topic-manufacturing",
      "type": "Topic",
      "label": "Manufacturing",
      "properties": {
        "id": "topic-manufacturing",
        "name": "Manufacturing",
        "lede": "The steps that turn powders and foils into a finished cell, in production order.",
        "context": "Place operations and quality checks in process order.",
        "example": "An electrode can meet coating mass targets but fail adhesion or moisture checks later.",
        "lesson_url": "https://lemonergy.com/learn/fundamentals/cell-production/",
        "lesson_label": "Open production"
      }
    },
    {
      "id": "term:dry-room",
      "type": "Term",
      "label": "Dry room",
      "properties": {
        "id": "dry-room",
        "name": "Dry room",
        "section": "topic-manufacturing",
        "definition": "A production room whose air is kept extremely dry — dew points around −30 °C to −60 °C — so that no moisture reaches the cell while the electrolyte goes in. Water would react with the salt LiPF₆ to form hydrofluoric acid.",
        "related": [
          "dew-point",
          "vacuum-drying",
          "electrolyte-filling",
          "lithium-salt"
        ],
        "lesson": "fundamentals/cell-production/#assembly",
        "url": "https://lemonergy.com/learn/glossary/dry-room/",
        "mentions": [
          "electrolyte",
          "hydrofluoric-acid",
          "lipf6"
        ]
      }
    },
    {
      "id": "term:moisture-content",
      "type": "Term",
      "label": "Moisture content",
      "properties": {
        "id": "moisture-content",
        "name": "Moisture content",
        "aka": [
          "Karl Fischer titration"
        ],
        "section": "topic-manufacturing",
        "definition": "The water left in electrodes, separator and electrolyte, measured by Karl Fischer titration and specified in the low hundreds of parts per million or below. Water forms HF with the salt, which attacks the positive electrode and the SEI.",
        "unit": "ppm",
        "related": [
          "vacuum-drying",
          "dry-room",
          "hydrofluoric-acid"
        ],
        "url": "https://lemonergy.com/learn/glossary/moisture-content/",
        "mentions": [
          "electrode",
          "positive-electrode",
          "separator",
          "electrolyte",
          "sei"
        ]
      }
    },
    {
      "id": "term:relative-humidity",
      "type": "Term",
      "label": "Relative humidity",
      "properties": {
        "id": "relative-humidity",
        "name": "Relative humidity",
        "abbr": "RH",
        "section": "topic-thermal",
        "definition": "The water vapour in air as a percentage of the most it could hold at that temperature. The same air reads a different RH when warmed or cooled, so dry rooms are specified by dew point instead. Air at 25 °C and 50 % RH has a dew point of about 14 °C: any surface colder than that collects condensation.",
        "related": [
          "dew-point",
          "dry-room",
          "condensation-control",
          "moisture-content"
        ],
        "url": "https://lemonergy.com/learn/glossary/relative-humidity/",
        "mentions": []
      }
    }
  ]
}