{
  "node": {
    "id": "term:oem",
    "type": "Term",
    "label": "Original equipment manufacturer",
    "properties": {
      "id": "oem",
      "name": "Original equipment manufacturer",
      "abbr": "OEM",
      "section": "topic-applications",
      "definition": "In the battery industry, the vehicle or device maker that buys cells or packs and sells the finished product. Cell makers, pack integrators and OEMs form the three tiers of the supply chain.",
      "related": [
        "electric-vehicle",
        "warranty",
        "total-cost-of-ownership"
      ],
      "url": "https://lemonergy.com/learn/glossary/oem/",
      "mentions": [
        "differential-electrochemical-mass-spectrometry"
      ]
    }
  },
  "edges": [
    {
      "id": "edge:3664",
      "source": "term:oem",
      "target": "topic:topic-applications",
      "type": "belongsTo",
      "properties": {
        "sourceFile": "terms.json"
      }
    },
    {
      "id": "edge:3665",
      "source": "term:oem",
      "target": "term:electric-vehicle",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    },
    {
      "id": "edge:3666",
      "source": "term:oem",
      "target": "term:warranty",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    },
    {
      "id": "edge:3667",
      "source": "term:oem",
      "target": "term:total-cost-of-ownership",
      "type": "relatedTo",
      "properties": {
        "sourceFile": "terms.json",
        "meaning": "Related context; not a causal claim"
      }
    },
    {
      "id": "edge:mentions/oem/differential-electrochemical-mass-spectrometry",
      "source": "term:oem",
      "target": "term:differential-electrochemical-mass-spectrometry",
      "type": "mentions",
      "properties": {
        "sourceFile": "terms.json",
        "method": "build_glossary.mention_index + mentions",
        "field": "definition",
        "meaning": "Text mention; not a causal claim"
      }
    }
  ],
  "neighbors": [
    {
      "id": "topic:topic-applications",
      "type": "Topic",
      "label": "Applications and market",
      "properties": {
        "id": "topic-applications",
        "name": "Applications and market",
        "lede": "Where batteries are used, and the terms used to buy, size and compare them.",
        "context": "Start with mission energy, peak power and operating conditions.",
        "example": "20 kWh total energy and a ten-second 100 kW peak constrain different design aspects.",
        "lesson_url": "https://lemonergy.com/learn/fundamentals/capacity-and-c-rate/",
        "lesson_label": "Open energy and power"
      }
    },
    {
      "id": "term:electric-vehicle",
      "type": "Term",
      "label": "Electric vehicle",
      "properties": {
        "id": "electric-vehicle",
        "name": "Electric vehicle",
        "abbr": "EV",
        "aka": [
          "BEV",
          "battery electric vehicle"
        ],
        "section": "topic-applications",
        "definition": "A vehicle driven by an electric motor from a battery charged from the grid. A battery electric vehicle has no engine; it is the largest market for lithium-ion cells and the driver of most pack technology.",
        "related": [
          "hybrid-vehicle",
          "range",
          "pack",
          "regenerative-braking",
          "maritime-battery",
          "industrial-vehicle-battery"
        ],
        "url": "https://lemonergy.com/learn/glossary/electric-vehicle/",
        "mentions": []
      }
    },
    {
      "id": "term:warranty",
      "type": "Term",
      "label": "Battery warranty",
      "properties": {
        "id": "warranty",
        "name": "Battery warranty",
        "section": "topic-applications",
        "definition": "The manufacturer’s guarantee of capacity retention over time, for electric cars typically 70 % after 8 years or 160 000 km. It is written against state of health as the BMS reports it, which makes the SOH algorithm a contractual matter.",
        "related": [
          "state-of-health",
          "end-of-life",
          "calendar-life",
          "cycle-life",
          "throughput-limiting"
        ],
        "url": "https://lemonergy.com/learn/glossary/warranty/",
        "mentions": [
          "bms",
          "state-of-capacity"
        ]
      }
    },
    {
      "id": "term:total-cost-of-ownership",
      "type": "Term",
      "label": "Total cost of ownership",
      "properties": {
        "id": "total-cost-of-ownership",
        "name": "Total cost of ownership",
        "abbr": "TCO",
        "section": "topic-applications",
        "definition": "Purchase price plus energy, maintenance and residual value over a vehicle’s or system’s life. For buses and trucks it is the figure that decides the case for batteries, because fuel and maintenance savings repay the higher purchase price.",
        "related": [
          "cost-per-kwh",
          "levelized-cost-of-storage",
          "second-life",
          "electric-bus"
        ],
        "url": "https://lemonergy.com/learn/glossary/total-cost-of-ownership/",
        "mentions": []
      }
    },
    {
      "id": "term:differential-electrochemical-mass-spectrometry",
      "type": "Term",
      "label": "Differential electrochemical mass spectrometry",
      "properties": {
        "id": "differential-electrochemical-mass-spectrometry",
        "name": "Differential electrochemical mass spectrometry",
        "abbr": "DEMS",
        "aka": [
          "OEMS",
          "online electrochemical mass spectrometry"
        ],
        "section": "topic-analysis",
        "definition": "Feeding gas from an operating cell straight into a mass spectrometer, so each species is identified and quantified as it forms. It shows ethylene from ethylene carbonate reduction during formation, and the oxygen and carbon dioxide released by layered oxides at high state of charge, tying each gas to the voltage that made it.",
        "related": [
          "gas-generation",
          "off-gas",
          "electrolyte-decomposition",
          "formation",
          "operando-measurement",
          "gas-chromatography-mass-spectrometry"
        ],
        "url": "https://lemonergy.com/learn/glossary/differential-electrochemical-mass-spectrometry/",
        "mentions": [
          "state-of-charge",
          "reduction",
          "ec"
        ]
      }
    }
  ]
}