{
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    "id": "term:conversion-reaction",
    "type": "Term",
    "label": "Conversion reaction",
    "properties": {
      "id": "conversion-reaction",
      "name": "Conversion reaction",
      "section": "topic-electrochemistry",
      "definition": "An electrode reaction in which the host compound is broken down and reformed, as sulfur or a metal fluoride is, rather than lithium slotting into an intact structure. Conversion materials store more charge than intercalation hosts but suffer large volume change and voltage hysteresis.",
      "related": [
        "intercalation",
        "alloying",
        "lithium-sulfur",
        "voltage-hysteresis"
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      "url": "https://lemonergy.com/learn/glossary/conversion-reaction/",
      "mentions": [
        "electrode"
      ]
    }
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  "edges": [
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      "id": "edge:1980",
      "source": "term:conversion-reaction",
      "target": "topic:topic-electrochemistry",
      "type": "belongsTo",
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      "id": "edge:1981",
      "source": "term:conversion-reaction",
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      "type": "relatedTo",
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        "meaning": "Related context; not a causal claim"
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      "id": "edge:1982",
      "source": "term:conversion-reaction",
      "target": "term:alloying",
      "type": "relatedTo",
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        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
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      "id": "edge:1983",
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      "type": "relatedTo",
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        "meaning": "Related context; not a causal claim"
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      "id": "edge:1984",
      "source": "term:conversion-reaction",
      "target": "term:voltage-hysteresis",
      "type": "relatedTo",
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        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
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      "id": "edge:mentions/conversion-reaction/electrode",
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      "id": "topic:topic-electrochemistry",
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      "label": "Electrochemistry fundamentals",
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        "id": "topic-electrochemistry",
        "name": "Electrochemistry fundamentals",
        "lede": "The reactions and potentials that make a cell a battery.",
        "context": "Connect reaction sites and transport paths.",
        "example": "A circuit can predict terminal voltage while leaving electrode potentials and reaction kinetics unresolved.",
        "lesson_url": "https://lemonergy.com/learn/fundamentals/cell-anatomy/",
        "lesson_label": "Open cell anatomy"
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      "id": "term:intercalation",
      "type": "Term",
      "label": "Intercalation",
      "properties": {
        "id": "intercalation",
        "name": "Intercalation",
        "section": "topic-electrochemistry",
        "definition": "Lithium inserting into, and leaving, the host structure of an electrode material — between graphite layers, for example — without destroying it.",
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        "mentions": [
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      "id": "term:alloying",
      "type": "Term",
      "label": "Alloying reaction",
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        "id": "alloying",
        "name": "Alloying reaction",
        "section": "topic-electrochemistry",
        "definition": "An electrode mechanism in which lithium forms an alloy with the host, as it does with silicon, tin or aluminium. It stores far more lithium per atom than intercalation at the cost of volume changes of several hundred percent.",
        "related": [
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        "mentions": [
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        "name": "Lithium–sulfur battery",
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        "definition": "A cell pairing a lithium-metal negative electrode with a sulfur positive electrode, which is cheap, light and converts rather than intercalates. Theoretical specific energy is very high; dissolving polysulfides and short cycle life are the obstacles.",
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        "section": "topic-charging",
        "definition": "The difference between the open-circuit voltage reached from charging and from discharging at the same state of charge. It is small for most lithium-ion chemistries but large for LFP and silicon, and it limits how precisely voltage can give SOC.",
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        "mentions": [
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      "id": "term:electrode",
      "type": "Term",
      "label": "Electrode",
      "properties": {
        "id": "electrode",
        "name": "Electrode",
        "section": "topic-components",
        "definition": "A solid conductor where the cell’s reaction happens, in contact with the electrolyte. A lithium-ion cell has a negative electrode and a positive electrode, each a porous coating on a metal foil.",
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          "title": "Two transport paths",
          "text": "Electrons need connected solid paths to the collector; ions need electrolyte paths to reaction sites. More of one constituent displaces others at fixed volume."
        },
        "url": "https://lemonergy.com/learn/glossary/electrode/",
        "mentions": [
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}