{
  "node": {
    "id": "term:deactivation",
    "type": "Term",
    "label": "Deactivation",
    "properties": {
      "id": "deactivation",
      "name": "Deactivation",
      "aka": [
        "discharging for recycling",
        "salt-water discharge",
        "electrical discharge"
      ],
      "section": "topic-recycling",
      "definition": "Removing the stored energy before a battery is opened or shredded: electrically through a load, often recovering the energy; by immersion in a salt solution, which is simple but corrodes terminals and makes wastewater; or by cryogenic or thermal treatment. A shredder fed a charged battery is a fire risk.",
      "related": [
        "dismantling",
        "shredding",
        "thermal-runaway",
        "pyrolysis"
      ],
      "url": "https://lemonergy.com/learn/glossary/deactivation/",
      "mentions": []
    }
  },
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    {
      "id": "topic:topic-recycling",
      "type": "Topic",
      "label": "Recycling and end of life",
      "properties": {
        "id": "topic-recycling",
        "name": "Recycling and end of life",
        "lede": "What happens to a battery after its first life: reuse, and the recycling routes that recover its materials, step by step.",
        "context": "Distinguish recovered material from a qualified product.",
        "example": "High mass recovery alone does not establish battery-grade purity or refining energy demand.",
        "lesson_url": "https://lemonergy.com/learn/fundamentals/cell-production/",
        "lesson_label": "Open process context"
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    {
      "id": "term:dismantling",
      "type": "Term",
      "label": "Dismantling",
      "properties": {
        "id": "dismantling",
        "name": "Dismantling",
        "aka": [
          "disassembly",
          "pack disassembly"
        ],
        "section": "topic-recycling",
        "definition": "Taking a pack apart down to modules or cells to recover the casing, busbars, cables and electronics separately and to send only the cells on. It is still largely manual; robotic disassembly is held back by the variety of designs, glue and potting.",
        "related": [
          "deactivation",
          "design-for-recycling",
          "shredding",
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        "mentions": [
          "potting-compound"
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    {
      "id": "term:shredding",
      "type": "Term",
      "label": "Shredding",
      "properties": {
        "id": "shredding",
        "name": "Shredding",
        "aka": [
          "crushing",
          "comminution",
          "wet shredding",
          "inert shredding"
        ],
        "section": "topic-recycling",
        "definition": "Breaking cells or modules into fragments, under an inert gas, in a liquid or in a vacuum so that the released electrolyte and any remaining charge cannot ignite. Off-gas treatment captures the solvent vapour and the hydrogen fluoride it forms.",
        "related": [
          "mechanical-pretreatment",
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        "url": "https://lemonergy.com/learn/glossary/shredding/",
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          "electrolyte",
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      "id": "term:thermal-runaway",
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      "label": "Thermal runaway",
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        "section": "topic-safety",
        "definition": "Self-accelerating heating in a cell: heat speeds up reactions that release more heat, until the cell vents, catches fire or ruptures. An internal short, overcharge or external heating can trigger it.",
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        "url": "https://lemonergy.com/learn/glossary/thermal-runaway/",
        "mentions": [
          "overcharge"
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      }
    },
    {
      "id": "term:pyrolysis",
      "type": "Term",
      "label": "Pyrolysis",
      "properties": {
        "id": "pyrolysis",
        "name": "Pyrolysis",
        "aka": [
          "thermal pre-treatment",
          "binder burn-off"
        ],
        "section": "topic-recycling",
        "definition": "Heating cells or black mass to a few hundred degrees without oxygen to evaporate the electrolyte and decompose the binder and plastics, so active material detaches from the foils. It makes later separation easier, at the cost of energy and off-gas treatment.",
        "related": [
          "deactivation",
          "pvdf",
          "black-mass",
          "pyrometallurgy"
        ],
        "url": "https://lemonergy.com/learn/glossary/pyrolysis/",
        "mentions": [
          "active-material",
          "binder",
          "electrolyte",
          "off-gas"
        ]
      }
    },
    {
      "id": "reference:harper-recycling",
      "type": "Reference",
      "label": "Recycling lithium-ion batteries from electric vehicles",
      "properties": {
        "title": "Recycling lithium-ion batteries from electric vehicles",
        "publisher": "Nature",
        "url": "https://doi.org/10.1038/s41586-019-1682-5",
        "type": "Review article",
        "scope": "Reuse, disassembly and mechanical, hydro-, pyro- and direct recycling routes.",
        "year": 2019,
        "authors": [
          "Gavin Harper et al."
        ],
        "accessed": "2026-10-27"
      }
    }
  ]
}
