{
  "node": {
    "id": "term:isostatic-pressing",
    "type": "Term",
    "label": "Isostatic pressing",
    "properties": {
      "id": "isostatic-pressing",
      "name": "Isostatic pressing",
      "section": "topic-manufacturing",
      "definition": "Compressing a solid-state cell from all sides by fluid pressure, at hundreds of megapascals, so sulfide electrolyte particles deform and bond to the electrode particles. It replaces the calendering and wetting steps of a liquid cell.",
      "unit": "MPa",
      "related": [
        "solid-state-battery",
        "stack-pressure",
        "sulfide-electrolyte",
        "calendering"
      ],
      "lesson": "fundamentals/solid-state-cell-production/#routes",
      "url": "https://lemonergy.com/learn/glossary/isostatic-pressing/",
      "mentions": [
        "electrode",
        "electrolyte",
        "wetting"
      ]
    }
  },
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      "source": "term:isostatic-pressing",
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    {
      "id": "edge:2575",
      "source": "term:isostatic-pressing",
      "target": "term:solid-state-battery",
      "type": "relatedTo",
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      "id": "edge:2576",
      "source": "term:isostatic-pressing",
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      "id": "edge:2577",
      "source": "term:isostatic-pressing",
      "target": "term:sulfide-electrolyte",
      "type": "relatedTo",
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        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    },
    {
      "id": "edge:2578",
      "source": "term:isostatic-pressing",
      "target": "term:calendering",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
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      "id": "edge:mentions/isostatic-pressing/electrode",
      "source": "term:isostatic-pressing",
      "target": "term:electrode",
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      "id": "edge:mentions/isostatic-pressing/electrolyte",
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      "target": "term:electrolyte",
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      "id": "edge:mentions/isostatic-pressing/wetting",
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      "id": "edge:2582",
      "source": "term:isostatic-pressing",
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        "url": "https://lemonergy.com/learn/fundamentals/solid-state-cell-production/#routes"
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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:solid-state-battery",
      "type": "Term",
      "label": "Solid-state battery",
      "properties": {
        "id": "solid-state-battery",
        "name": "Solid-state battery",
        "abbr": "ASSB",
        "aka": [
          "all-solid-state battery"
        ],
        "section": "topic-other-chemistries",
        "definition": "A cell whose electrolyte is a solid rather than a liquid. It removes the flammable solvent and may allow a lithium-metal anode, but needs intimate solid–solid contact and, for most chemistries, stack pressure to keep it.",
        "related": [
          "solid-electrolyte",
          "lithium-metal-anode",
          "stack-pressure",
          "semi-solid-battery",
          "sintering"
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        "url": "https://lemonergy.com/learn/glossary/solid-state-battery/",
        "mentions": [
          "anode",
          "electrolyte"
        ]
      }
    },
    {
      "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.",
        "unit": "MPa",
        "related": [
          "solid-state-battery",
          "solid-electrolyte",
          "compression-pad",
          "swelling"
        ],
        "lesson": "fundamentals/solid-state-cell-production/#contact",
        "url": "https://lemonergy.com/learn/glossary/stack-pressure/",
        "mentions": [
          "cell-stack"
        ]
      }
    },
    {
      "id": "term:sulfide-electrolyte",
      "type": "Term",
      "label": "Sulfide electrolyte",
      "properties": {
        "id": "sulfide-electrolyte",
        "name": "Sulfide electrolyte",
        "aka": [
          "LPSCl",
          "argyrodite",
          "LGPS"
        ],
        "section": "topic-electrolytes",
        "definition": "The solid electrolyte family with the highest conductivity — argyrodites such as Li₆PS₅Cl match liquids, and LGPS exceeds them — and soft enough to be pressed rather than sintered. Their weakness is reaction with moisture, which releases hydrogen sulfide.",
        "related": [
          "solid-electrolyte",
          "llzo",
          "isostatic-pressing",
          "dry-room",
          "halide-electrolyte"
        ],
        "lesson": "fundamentals/solid-state-cell-production/#families",
        "url": "https://lemonergy.com/learn/glossary/sulfide-electrolyte/",
        "mentions": [
          "electrolyte"
        ]
      }
    },
    {
      "id": "term:calendering",
      "type": "Term",
      "label": "Calendering",
      "properties": {
        "id": "calendering",
        "name": "Calendering",
        "section": "topic-manufacturing",
        "definition": "Compressing a dried electrode coating between rollers to set its thickness, density and porosity. It is one of the electrode-making steps in cell production.",
        "related": [
          "porosity",
          "electrode-density",
          "drying",
          "slitting"
        ],
        "lesson": "fundamentals/cell-production/#electrodes",
        "example": {
          "title": "Connect thickness and density",
          "text": "At fixed mass and area, reducing thickness raises bulk density. The pore structure still needs to support wetting and transport."
        },
        "url": "https://lemonergy.com/learn/glossary/calendering/",
        "mentions": [
          "electrode",
          "cell-production",
          "coating"
        ]
      }
    },
    {
      "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.",
        "related": [
          "negative-electrode",
          "positive-electrode",
          "porous-electrode",
          "current-collector"
        ],
        "lesson": "fundamentals/cell-anatomy/#components",
        "example": {
          "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": [
          "electrolyte",
          "coating"
        ]
      }
    },
    {
      "id": "term:electrolyte",
      "type": "Term",
      "label": "Electrolyte",
      "properties": {
        "id": "electrolyte",
        "name": "Electrolyte",
        "section": "topic-electrolytes",
        "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.",
        "related": [
          "lithium-salt",
          "carbonate-solvent",
          "electrolyte-additive",
          "ionic-conductivity",
          "solid-electrolyte",
          "ionic-liquid-electrolyte"
        ],
        "lesson": "fundamentals/cell-architecture/#electrolyte",
        "example": {
          "title": "Ions and electrons",
          "text": "Electrolyte carries ions between electrodes; the external circuit carries electrons. The two paths serve different roles."
        },
        "url": "https://lemonergy.com/learn/glossary/electrolyte/",
        "mentions": [
          "separator"
        ]
      }
    },
    {
      "id": "term:wetting",
      "type": "Term",
      "label": "Wetting",
      "properties": {
        "id": "wetting",
        "name": "Wetting",
        "aka": [
          "soaking"
        ],
        "section": "topic-manufacturing",
        "definition": "The soaking of electrolyte into every pore of the electrodes and separator after filling. It can take hours or more; a pore left dry is electrode area that never works properly.",
        "related": [
          "electrolyte-filling",
          "porosity",
          "formation",
          "electrolyte-dry-out",
          "ultrasonic-cell-testing"
        ],
        "lesson": "fundamentals/cell-production/#assembly",
        "example": {
          "title": "Added volume is not penetration",
          "text": "The intended electrolyte mass can be present before every pore is wetted. Time and pore connectivity affect penetration."
        },
        "url": "https://lemonergy.com/learn/glossary/wetting/",
        "mentions": [
          "electrode",
          "separator",
          "electrolyte"
        ]
      }
    },
    {
      "id": "lesson:fundamentals/solid-state-cell-production/",
      "type": "Lesson",
      "label": "Lesson 3B · Solid-state production",
      "properties": {
        "url": "https://lemonergy.com/learn/fundamentals/solid-state-cell-production/"
      }
    }
  ]
}