{
  "node": {
    "id": "term:lithium-iron-disulfide",
    "type": "Term",
    "label": "Lithium–iron disulfide cell",
    "properties": {
      "id": "lithium-iron-disulfide",
      "name": "Lithium–iron disulfide cell",
      "abbr": "Li–FeS₂",
      "aka": [
        "lithium iron disulfide",
        "FR6",
        "1.5 V lithium AA"
      ],
      "section": "topic-other-chemistries",
      "definition": "A primary cell with a lithium negative and an iron disulfide positive that gives 1.5 V, so it replaces alkaline AA and AAA cells directly. It is about a third lighter, holds its voltage under high-drain loads such as camera flashes, works down to −40 °C and keeps for many years on the shelf.",
      "related": [
        "primary-cell",
        "alkaline-cell",
        "lithium-manganese-dioxide",
        "self-discharge"
      ],
      "url": "https://lemonergy.com/learn/glossary/lithium-iron-disulfide/",
      "mentions": []
    }
  },
  "edges": [
    {
      "id": "edge:5913",
      "source": "term:lithium-iron-disulfide",
      "target": "topic:topic-other-chemistries",
      "type": "belongsTo",
      "properties": {
        "sourceFile": "terms.json"
      }
    },
    {
      "id": "edge:5914",
      "source": "term:lithium-iron-disulfide",
      "target": "term:primary-cell",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    },
    {
      "id": "edge:5915",
      "source": "term:lithium-iron-disulfide",
      "target": "term:alkaline-cell",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    },
    {
      "id": "edge:5916",
      "source": "term:lithium-iron-disulfide",
      "target": "term:lithium-manganese-dioxide",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    },
    {
      "id": "edge:5917",
      "source": "term:lithium-iron-disulfide",
      "target": "term:self-discharge",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    }
  ],
  "neighbors": [
    {
      "id": "topic:topic-other-chemistries",
      "type": "Topic",
      "label": "Other and emerging chemistries",
      "properties": {
        "id": "topic-other-chemistries",
        "name": "Other and emerging chemistries",
        "lede": "Batteries beyond today’s lithium-ion: lead, nickel and primary cells, flow and metal–air batteries, solid-state and lithium-metal cells, and the multivalent and sodium chemistries in development.",
        "context": "Do not carry lithium-ion assumptions into every chemistry.",
        "example": "Two chemistries can meet the same energy target with different voltage windows and charge termination.",
        "lesson_url": "https://lemonergy.com/learn/fundamentals/cell-anatomy/",
        "lesson_label": "Open cell anatomy"
      }
    },
    {
      "id": "term:primary-cell",
      "type": "Term",
      "label": "Primary cell",
      "properties": {
        "id": "primary-cell",
        "name": "Primary cell",
        "aka": [
          "non-rechargeable battery"
        ],
        "section": "topic-other-chemistries",
        "definition": "A cell designed to be discharged once and not recharged, such as an alkaline or lithium–manganese dioxide cell. Its reaction is not reversible in practice, unlike the secondary cells this glossary is mostly about.",
        "related": [
          "secondary-cell",
          "lithium-ion",
          "iec-60086-5",
          "lithium-iron-disulfide"
        ],
        "url": "https://lemonergy.com/learn/glossary/primary-cell/",
        "mentions": [
          "lithium-manganese-dioxide",
          "manganese"
        ]
      }
    },
    {
      "id": "term:alkaline-cell",
      "type": "Term",
      "label": "Alkaline cell",
      "properties": {
        "id": "alkaline-cell",
        "name": "Alkaline cell",
        "aka": [
          "zinc–manganese dioxide"
        ],
        "section": "topic-other-chemistries",
        "definition": "The common 1.5 V single-use cell, with a zinc negative electrode and manganese dioxide positive in potassium hydroxide electrolyte. It is the reference point for most people’s idea of a battery, and is not rechargeable.",
        "related": [
          "primary-cell",
          "zinc-air",
          "nominal-voltage",
          "zinc-carbon"
        ],
        "url": "https://lemonergy.com/learn/glossary/alkaline-cell/",
        "mentions": [
          "electrode",
          "negative-electrode",
          "electrolyte",
          "manganese"
        ]
      }
    },
    {
      "id": "term:lithium-manganese-dioxide",
      "type": "Term",
      "label": "Lithium–manganese dioxide cell",
      "properties": {
        "id": "lithium-manganese-dioxide",
        "name": "Lithium–manganese dioxide cell",
        "abbr": "Li–MnO₂",
        "aka": [
          "CR cell",
          "lithium coin cell",
          "CR123A"
        ],
        "section": "topic-other-chemistries",
        "definition": "The most common lithium primary chemistry: a lithium-metal negative, a heat-treated manganese dioxide positive and an organic electrolyte, giving 3 V. It fills CR-coded coin cells such as the CR2032 and cylindrical CR123A camera cells, and loses only about 1 % of its capacity a year in storage.",
        "related": [
          "primary-cell",
          "coin-cell",
          "lithium-thionyl-chloride",
          "lithium-carbon-monofluoride",
          "self-discharge"
        ],
        "url": "https://lemonergy.com/learn/glossary/lithium-manganese-dioxide/",
        "mentions": [
          "electrolyte",
          "manganese"
        ]
      }
    },
    {
      "id": "term:self-discharge",
      "type": "Term",
      "label": "Self-discharge",
      "properties": {
        "id": "self-discharge",
        "name": "Self-discharge",
        "section": "topic-charging",
        "definition": "The slow loss of stored charge while a cell is not in use. An unexpected rise can signal a leakage path or a soft internal short.",
        "unit": "%/month",
        "related": [
          "internal-short-circuit",
          "calendar-aging",
          "k-value",
          "calendar-life",
          "self-discharge-test"
        ],
        "lesson": "fundamentals/battery-aging/#check-yourself",
        "url": "https://lemonergy.com/learn/glossary/self-discharge/",
        "mentions": []
      }
    }
  ]
}