{
  "node": {
    "id": "term:lithium-salt",
    "type": "Term",
    "label": "Lithium salt",
    "properties": {
      "id": "lithium-salt",
      "name": "Lithium salt",
      "aka": [
        "LiPF₆",
        "LiFSI"
      ],
      "section": "topic-electrolytes",
      "definition": "The dissolved salt that supplies the mobile lithium ions in a liquid electrolyte, almost always lithium hexafluorophosphate, LiPF₆, at about one mole per litre. It reacts with traces of water to form hydrofluoric acid, which is why cells are filled in a dry room.",
      "related": [
        "electrolyte",
        "carbonate-solvent",
        "dry-room",
        "hydrofluoric-acid"
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      "url": "https://lemonergy.com/learn/glossary/lithium-salt/",
      "mentions": [
        "lipf6"
      ]
    }
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      "id": "topic:topic-electrolytes",
      "type": "Topic",
      "label": "Electrolytes and separators",
      "properties": {
        "id": "topic-electrolytes",
        "name": "Electrolytes and separators",
        "lede": "What sits between the electrodes: liquid, gel and solid electrolytes, their salts, solvents and additives, and the separator that keeps the electrodes apart.",
        "context": "Connect transport with electronic isolation.",
        "example": "Greater liquid uptake may improve wetting while changing mechanical behavior. Several properties define separator performance.",
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        "lesson_label": "Open cell anatomy"
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        "name": "Electrolyte",
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        "definition": "The ion-conducting medium between the electrodes. In a liquid-electrolyte cell it fills the pores of both electrodes and the separator, so it is not a separate structural layer.",
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          "title": "Ions and electrons",
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      "id": "term:carbonate-solvent",
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      "label": "Carbonate solvent",
      "properties": {
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        "name": "Carbonate solvent",
        "aka": [
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        "section": "topic-electrolytes",
        "definition": "The organic liquids that dissolve the lithium salt: cyclic ethylene carbonate, which forms a stable SEI, blended with linear carbonates such as DMC or EMC to lower viscosity. All are flammable, which is a root of lithium-ion fire risk.",
        "related": [
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        "mentions": [
          "ec",
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    },
    {
      "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",
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        "url": "https://lemonergy.com/learn/glossary/dry-room/",
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      "id": "term:hydrofluoric-acid",
      "type": "Term",
      "label": "Hydrofluoric acid",
      "properties": {
        "id": "hydrofluoric-acid",
        "name": "Hydrofluoric acid",
        "abbr": "HF",
        "section": "topic-safety",
        "definition": "Formed when LiPF₆ electrolyte meets water, or when a fluorinated cell burns. Inside a cell traces of it attack the positive electrode and SEI; in a fire it is the most dangerous component of the vented gas.",
        "related": [
          "lithium-salt",
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          "electrolyte",
          "sei",
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        ]
      }
    },
    {
      "id": "term:lipf6",
      "type": "Term",
      "label": "Lithium hexafluorophosphate",
      "properties": {
        "id": "lipf6",
        "name": "Lithium hexafluorophosphate",
        "abbr": "LiPF₆",
        "section": "topic-electrolytes",
        "definition": "The lithium salt in nearly every commercial electrolyte, chosen for conductivity, aluminium passivation and cost rather than stability: it decomposes above about 60 °C and reacts with water to form HF.",
        "related": [
          "lithium-salt",
          "hydrofluoric-acid",
          "lifsi",
          "dry-room",
          "aluminium-foil"
        ],
        "url": "https://lemonergy.com/learn/glossary/lipf6/",
        "mentions": [
          "electrolyte",
          "passivation"
        ]
      }
    },
    {
      "id": "reference:xu-electrolytes",
      "type": "Reference",
      "label": "Electrolytes and Interphases in Li-Ion Batteries and Beyond",
      "properties": {
        "title": "Electrolytes and Interphases in Li-Ion Batteries and Beyond",
        "publisher": "Chemical Reviews",
        "url": "https://doi.org/10.1021/cr500003w",
        "type": "Review article",
        "scope": "Electrolyte salts, solvents, additives and electrode interphases.",
        "year": 2014,
        "authors": [
          "Kang Xu"
        ],
        "accessed": "2026-10-27"
      }
    }
  ]
}