{
  "spore": "profile",
  "id": "lithium-phosphate",
  "spore_version": "0.2",
  "family": "lithium",
  "name": "Lithium phosphate (Li3PO4)",
  "role": "solid electrolyte precursor and cathode coating",
  "category": "energy",
  "type": "solid-state-batteries",
  "summary": "Lithium phosphate (Li3PO4) is a white inorganic powder made of lithium ions and phosphate groups. Its main technical use is as the sputtering source for LiPON, a thin-film solid electrolyte, and it is also tested as a coating on lithium-ion cathode particles. The supplier data sheets agree on density but give two different melting points.\n",
  "best_for": "Sputtering targets for thin-film LiPON electrolytes, and surface-coating experiments on cathode powders",
  "weakest_at": "Ionic conductivity: crystalline Li3PO4 conducts ions poorly, and the sources print conductivity only as powers of ten, so no value is recorded here",
  "identity": {
    "formula": "Li3PO4",
    "cas": "10377-52-3",
    "designations": [],
    "source": "prochem-sds",
    "where": "Section 3 composition block (formula Li3PO4, CAS 10377-52-3); Angstrom Sciences SDS Section 1 prints the same CAS"
  },
  "tags": {
    "environments": [],
    "stresses": [],
    "applications": [
      "batteries"
    ]
  },
  "properties": [
    {
      "benchmark": "density",
      "label": "Density, supplier product page",
      "value": 2.54,
      "bound": "exact",
      "unit": "g/cm3",
      "scope": "material",
      "conditions": {
        "form": "powder, as sold by the supplier",
        "temperature": "not stated"
      },
      "method": "Value printed on the supplier's product specification list",
      "status": "ground",
      "source": "ulp-li3po4",
      "where": "Product specification list, Density field",
      "source_detail": {
        "title": "Lithium Phosphate Powder (Li3PO4), supplier product page (ULP Materials)",
        "id": "products 03150800PD001 and 03150800PD002",
        "url": "https://ulpmat.com/product/lithium-phosphate-powder/",
        "kind": "web",
        "license": "supplier web page, cited not reproduced"
      }
    },
    {
      "benchmark": "density",
      "label": "Density, supplier safety data sheet",
      "value": 2.537,
      "bound": "exact",
      "unit": "g/cc",
      "scope": "material",
      "conditions": {
        "form": "Powder, granules, pellets, sputtering target (forms listed in the SDS)",
        "temperature": "not stated"
      },
      "method": "Value printed in the physical and chemical properties section of the SDS",
      "status": "ground",
      "source": "angstrom-sds",
      "where": "Section 9, Density",
      "source_detail": {
        "title": "Safety data sheet: Lithium Phosphate (Angstrom Sciences, Inc.)",
        "id": "CAS 10377-52-3; EC 233-823-0; date of last revision 07/13/15",
        "url": "https://angstromsciences.com/wp-content/uploads/files/SDS/Lithium%20Phosphate.pdf",
        "year": 2015,
        "kind": "datasheet",
        "license": "supplier document, linked not reproduced"
      }
    },
    {
      "benchmark": "melting_point",
      "label": "Melting point, supplier product page",
      "value": 837,
      "bound": "exact",
      "unit": "°C",
      "scope": "material",
      "conditions": {
        "form": "powder, as sold by the supplier"
      },
      "method": "Value printed on the supplier's product specification list",
      "status": "ground",
      "note": "Conflicts with the 1205 °C printed by ProChem for the same CAS number; both values are kept side by side.",
      "source": "ulp-li3po4",
      "where": "Product specification list, Melting point field",
      "source_detail": {
        "title": "Lithium Phosphate Powder (Li3PO4), supplier product page (ULP Materials)",
        "id": "products 03150800PD001 and 03150800PD002",
        "url": "https://ulpmat.com/product/lithium-phosphate-powder/",
        "kind": "web",
        "license": "supplier web page, cited not reproduced"
      }
    },
    {
      "benchmark": "melting_point",
      "label": "Melting point, Angstrom Sciences SDS",
      "value": 837,
      "bound": "exact",
      "unit": "°C",
      "scope": "material",
      "conditions": {
        "form": "Powder, granules, pellets, sputtering target (forms listed in the SDS)"
      },
      "method": "Value printed in the physical and chemical properties section of the SDS",
      "status": "ground",
      "note": "The same 837 value is printed on the ULP product page; ProChem gives 1205 °C.",
      "source": "angstrom-sds",
      "where": "Section 9, Melting Point",
      "source_detail": {
        "title": "Safety data sheet: Lithium Phosphate (Angstrom Sciences, Inc.)",
        "id": "CAS 10377-52-3; EC 233-823-0; date of last revision 07/13/15",
        "url": "https://angstromsciences.com/wp-content/uploads/files/SDS/Lithium%20Phosphate.pdf",
        "year": 2015,
        "kind": "datasheet",
        "license": "supplier document, linked not reproduced"
      }
    },
    {
      "benchmark": "melting_point",
      "label": "Melting point, ProChem safety data sheet (product 2360)",
      "value": 1205,
      "bound": "exact",
      "unit": "°C",
      "scope": "material",
      "conditions": {
        "form": "powder, product 2360"
      },
      "method": "Value printed in the physical and chemical properties section of the SDS",
      "status": "ground",
      "note": "Conflicts with the 837 °C given by ULP and Angstrom Sciences.",
      "source": "prochem-sds",
      "where": "Physical and chemical properties section, MELTING POINT line",
      "source_detail": {
        "title": "Safety data sheet: Lithium Phosphate, product 2360 (ProChem Inc.)",
        "id": "product 2360; CAS 10377-52-3",
        "url": "https://prochemonline.com/wp-content/uploads/2021/06/2360.LithiumPhosphate.pdf",
        "kind": "datasheet",
        "license": "supplier document, linked not reproduced"
      }
    },
    {
      "benchmark": "melting_point",
      "label": "Melting point, ProChem product page (product 2360)",
      "value": 1205,
      "bound": "exact",
      "unit": "°C",
      "scope": "material",
      "conditions": {
        "form": "powder, product 2360"
      },
      "method": "Value printed on the supplier's product page",
      "status": "ground",
      "source": "prochem-page",
      "where": "Product specification, Melting point line",
      "source_detail": {
        "title": "Lithium Phosphate, product 2360, supplier product page (ProChem Inc.)",
        "id": "product 2360; CAS 10377-52-3",
        "url": "https://prochemonline.com/product/lithiumphosphate-2360/",
        "kind": "web",
        "license": "supplier web page, cited not reproduced"
      }
    },
    {
      "benchmark": "molar_mass",
      "label": "Molar mass, Angstrom Sciences SDS",
      "value": 115.8,
      "bound": "exact",
      "unit": "g/mol",
      "scope": "material",
      "conditions": {
        "basis": "Molecular Weight line of the SDS"
      },
      "method": "Value printed in the physical and chemical properties section of the SDS",
      "status": "ground",
      "source": "angstrom-sds",
      "where": "Section 9, Molecular Weight",
      "source_detail": {
        "title": "Safety data sheet: Lithium Phosphate (Angstrom Sciences, Inc.)",
        "id": "CAS 10377-52-3; EC 233-823-0; date of last revision 07/13/15",
        "url": "https://angstromsciences.com/wp-content/uploads/files/SDS/Lithium%20Phosphate.pdf",
        "year": 2015,
        "kind": "datasheet",
        "license": "supplier document, linked not reproduced"
      }
    },
    {
      "benchmark": "molar_mass",
      "label": "Molar mass, ULP product page",
      "value": 115.79,
      "bound": "exact",
      "unit": "g/mol",
      "scope": "material",
      "conditions": {
        "basis": "Molecular weight field of the product page"
      },
      "method": "Value printed on the supplier's product specification list",
      "status": "ground",
      "source": "ulp-li3po4",
      "where": "Product specification list, Molecular weight field",
      "source_detail": {
        "title": "Lithium Phosphate Powder (Li3PO4), supplier product page (ULP Materials)",
        "id": "products 03150800PD001 and 03150800PD002",
        "url": "https://ulpmat.com/product/lithium-phosphate-powder/",
        "kind": "web",
        "license": "supplier web page, cited not reproduced"
      }
    },
    {
      "benchmark": "water_solubility",
      "label": "Water solubility, Angstrom Sciences SDS",
      "value": 0.39,
      "bound": "exact",
      "unit": "g/l",
      "scope": "material",
      "conditions": {
        "temperature": "not stated in the SDS"
      },
      "method": "Value printed in the physical and chemical properties section of the SDS",
      "status": "ground",
      "source": "angstrom-sds",
      "where": "Section 9, Water Solubility",
      "source_detail": {
        "title": "Safety data sheet: Lithium Phosphate (Angstrom Sciences, Inc.)",
        "id": "CAS 10377-52-3; EC 233-823-0; date of last revision 07/13/15",
        "url": "https://angstromsciences.com/wp-content/uploads/files/SDS/Lithium%20Phosphate.pdf",
        "year": 2015,
        "kind": "datasheet",
        "license": "supplier document, linked not reproduced"
      }
    },
    {
      "benchmark": "assay_purity",
      "label": "Assay of the 99.99% grade (supplier product 03150800PD002)",
      "value": 99.99,
      "bound": "exact",
      "unit": "%",
      "scope": "material",
      "conditions": {
        "form": "powder"
      },
      "method": "Assay printed on the supplier's product list",
      "status": "ground",
      "source": "ulp-li3po4",
      "where": "Product list, product 03150800PD002",
      "source_detail": {
        "title": "Lithium Phosphate Powder (Li3PO4), supplier product page (ULP Materials)",
        "id": "products 03150800PD001 and 03150800PD002",
        "url": "https://ulpmat.com/product/lithium-phosphate-powder/",
        "kind": "web",
        "license": "supplier web page, cited not reproduced"
      }
    },
    {
      "benchmark": "assay_purity",
      "label": "Assay of the 99.9% grade (supplier product 03150800PD001)",
      "value": 99.9,
      "bound": "exact",
      "unit": "%",
      "scope": "material",
      "conditions": {
        "form": "powder"
      },
      "method": "Assay printed on the supplier's product list",
      "status": "ground",
      "source": "ulp-li3po4",
      "where": "Product list, product 03150800PD001",
      "source_detail": {
        "title": "Lithium Phosphate Powder (Li3PO4), supplier product page (ULP Materials)",
        "id": "products 03150800PD001 and 03150800PD002",
        "url": "https://ulpmat.com/product/lithium-phosphate-powder/",
        "kind": "web",
        "license": "supplier web page, cited not reproduced"
      }
    },
    {
      "benchmark": "assay_purity",
      "label": "Assay, Ereztech listing",
      "value": 99.99,
      "bound": "exact",
      "unit": "%",
      "scope": "material",
      "conditions": {
        "method_of_assay": "by elemental analysis (as printed)"
      },
      "method": "Assay printed on the supplier's product specification list",
      "status": "ground",
      "source": "ereztech",
      "where": "Product specification list, Purity field",
      "source_detail": {
        "title": "Lithium Phosphate, CAS 10377-52-3, supplier product page (Ereztech)",
        "id": "CAS 10377-52-3",
        "url": "https://ereztech.com/product/lithium-phosphate-10377-52-3/",
        "kind": "web",
        "license": "supplier web page, cited not reproduced"
      }
    },
    {
      "benchmark": "capacity_retention",
      "label": "Capacity retention after 100 cycles, Li3PO4-coated NCM cathode (coating study)",
      "value": 82,
      "bound": "exact",
      "unit": "%",
      "scope": "material",
      "conditions": {
        "cathode": "LiNi0.91Co0.06Mn0.03O2 with a 0.1 mol.% Li3PO4 coating",
        "cycles": 100
      },
      "method": "Capacity retention after the 100th cycle, as printed in the abstract and Table 2 of the paper",
      "status": "ground",
      "note": "A test on a coated cathode, not on pure Li3PO4.",
      "source": "sci-rep-2021",
      "where": "Abstract; Table 2, capacity retention after 100th cycles",
      "source_detail": {
        "title": "Dual function Li-reactive coating from residual lithium on Ni-rich NCM cathode material for Lithium-ion batteries",
        "id": "doi:10.1038/s41598-021-98123-4 (Scientific Reports 11, 18590)",
        "url": "https://doi.org/10.1038/s41598-021-98123-4",
        "year": 2021,
        "kind": "paper",
        "license": "CC BY 4.0"
      }
    },
    {
      "benchmark": "capacity_retention",
      "label": "Capacity retention after 100 cycles, uncoated NCM cathode (comparison)",
      "value": 68.1,
      "bound": "exact",
      "unit": "%",
      "scope": "material",
      "conditions": {
        "cathode": "LiNi0.91Co0.06Mn0.03O2 without coating",
        "cycles": 100
      },
      "method": "Capacity retention after the 100th cycle, as printed in the abstract and Table 2 of the paper",
      "status": "ground",
      "source": "sci-rep-2021",
      "where": "Abstract; Table 2, pristine row",
      "source_detail": {
        "title": "Dual function Li-reactive coating from residual lithium on Ni-rich NCM cathode material for Lithium-ion batteries",
        "id": "doi:10.1038/s41598-021-98123-4 (Scientific Reports 11, 18590)",
        "url": "https://doi.org/10.1038/s41598-021-98123-4",
        "year": 2021,
        "kind": "paper",
        "license": "CC BY 4.0"
      }
    }
  ],
  "corrosion": [
    {
      "environment": "Sputter deposition in argon (film ageing)",
      "headline": "Crystallization of the sputtered film lowers its ionic conduction.",
      "effect": "The NIMS record of Ohnishi and Takada (ACS Omega, 2022) quotes the abstract: 'crystallization of Li3PO4 impedes ionic conduction'. The same abstract says a moderate oxygen addition to the argon sputtering gas suppresses crystallization.",
      "rating": "moderate",
      "conditions": {
        "process": "RF sputtering of Li3PO4 films in argon, with and without oxygen addition"
      },
      "source": "nims-ohnishi2022",
      "where": "Abstract, as quoted on the NIMS record"
    },
    {
      "environment": "Water and moisture (powder)",
      "headline": "The SDS prints a water solubility of 0.39 g/l, with no temperature given.",
      "effect": "Angstrom Sciences prints a water solubility of 0.39 g/l for lithium phosphate. No humidity or long-term moisture test of the powder was found in the sources we hold.",
      "rating": "unknown",
      "conditions": {
        "basis": "water solubility line of the SDS; temperature not stated"
      },
      "source": "angstrom-sds",
      "where": "Section 9, Water Solubility"
    }
  ],
  "risks": {
    "hazards": [
      {
        "text": "PubChem aggregates GHS data from 192 company reports from 10 notifications to the ECHA C&L Inventory, signal word Warning: H302 Harmful if swallowed (100%); H315 Causes skin irritation (25%); H319 Causes serious eye irritation (79.2%); H335 May cause respiratory irritation (22.4%). The percentage is the share of notifications giving that code.",
        "ghs": [
          "H302",
          "H315",
          "H319",
          "H335"
        ],
        "source": "pubchem-li3po4",
        "where": "Safety and Hazards, GHS Classification"
      },
      {
        "text": "ProChem safety data sheet for product 2360 (CAS 10377-52-3): Signal Word Warning; H302 Harmful if swallowed; H315 Causes skin irritation; H319 Causes serious eye irritation; H335 May cause respiratory irritation.",
        "ghs": [
          "H302",
          "H315",
          "H319",
          "H335"
        ],
        "source": "prochem-sds",
        "where": "Section 2, Hazard Statements"
      },
      {
        "text": "Angstrom Sciences safety data sheet for Lithium Phosphate (CAS 10377-52-3, last revised 07/13/15): Signal Word Danger; H301 Toxic if swallowed. This conflicts with the Warning classes above; both are kept.",
        "ghs": [
          "H301"
        ],
        "source": "angstrom-sds",
        "where": "Section 2, Hazard Statements"
      }
    ],
    "failure_risks": [
      {
        "mode": "Film crystallizes and loses ionic conduction",
        "trigger": "Sputtering without the moderate oxygen addition to the argon gas that the paper describes",
        "consequence": "Crystallization impedes ionic conduction (abstract as quoted on the NIMS record of Ohnishi and Takada, 2022).",
        "severity": "moderate",
        "source": "nims-ohnishi2022",
        "where": "Abstract, as quoted on the NIMS record"
      }
    ],
    "side_effects": [
      {
        "text": "Hazardous combustion and decomposition products are oxides of phosphorus and lithium oxides.",
        "affects": "Fire-fighters and nearby materials",
        "source": "prochem-sds",
        "where": "Hazardous combustion and decomposition products entry"
      }
    ],
    "handling": [
      {
        "text": "After swallowing, rinse the mouth with water and give one or two glasses of water. Do not induce vomiting (ProChem SDS first-aid section).",
        "source": "prochem-sds",
        "where": "Section 4, Ingestion"
      },
      {
        "text": "The Angstrom Sciences SDS classes the product as toxic if swallowed (H301), so treat it as toxic until the supplier's own SDS for the batch has been read.",
        "source": "angstrom-sds",
        "where": "Section 2, Hazard Statements"
      }
    ],
    "mitigations": []
  },
  "uses": [
    {
      "application": "batteries",
      "device": "Thin-film solid electrolyte (LiPON) for thin-film batteries",
      "example": "Goodfellow describes lithium phosphate as a high-purity sputtering target and says that reactive sputtering in nitrogen creates lithium phosphorus oxynitride (LiPON) films with enhanced properties, citing Ohnishi and Takada (2022).",
      "source": "goodfellow",
      "where": "Product page, sputtering and LiPON text"
    },
    {
      "application": "batteries",
      "device": "Coating on Ni-rich layered-oxide cathode powder (research)",
      "example": "Converting residual lithium on LiNi0.91Co0.06Mn0.03O2 into a Li3PO4 coating (0.1 mol.% Li3PO4) gave 82% capacity retention after 100 cycles, against 68.1% for the uncoated cathode.",
      "source": "sci-rep-2021",
      "where": "Abstract; Table 2"
    }
  ],
  "supply": [
    {
      "subject": "Lithium",
      "producers": [
        {
          "country": "Australia",
          "share_percent": 31.7,
          "year": 2025
        },
        {
          "country": "Chile",
          "share_percent": 19.3,
          "year": 2025
        },
        {
          "country": "China",
          "share_percent": 21.4,
          "year": 2025
        },
        {
          "country": "Zimbabwe",
          "share_percent": 9.7,
          "year": 2025
        },
        {
          "country": "Argentina",
          "share_percent": 7.9,
          "year": 2025
        }
      ],
      "critical_lists": [
        {
          "list": "USGS 2025 List of Critical Minerals (entry: Lithium, used in rechargeable batteries)",
          "listed": true
        }
      ],
      "recycling": "USGS: construction of lithium battery recycling plants continued throughout 2025.",
      "substitutes": [
        "USGS: substitution for lithium compounds is possible in batteries, ceramics, greases, and manufactured glass."
      ],
      "source": "usgs-mcs2026-lithium",
      "where": "World Mine Production and Reserves table, 2025 (shares calculated by Space Mushroom against the printed world total of 290,000, which excludes U.S. production); Recycling; Substitutes"
    },
    {
      "subject": "Phosphorus (phosphate rock)",
      "producers": [
        {
          "country": "China",
          "share_percent": 44,
          "year": 2025
        },
        {
          "country": "Morocco",
          "share_percent": 14.4,
          "year": 2025
        },
        {
          "country": "United States",
          "share_percent": 8,
          "year": 2025
        },
        {
          "country": "Russia",
          "share_percent": 5.6,
          "year": 2025
        }
      ],
      "critical_lists": [
        {
          "list": "USGS 2025 List of Critical Minerals (entry: Phosphate, used in fertilizers)",
          "listed": true
        }
      ],
      "recycling": "USGS phosphate rock chapter: Recycling: None.",
      "substitutes": [
        "USGS: there are no substitutes for phosphorus in agriculture."
      ],
      "source": "usgs-mcs2026-phosphate",
      "where": "World Mine Production and Reserves table, 2025 (shares calculated by Space Mushroom against the printed world total of 250,000 thousand metric tons); Recycling; Substitutes"
    }
  ],
  "media": [],
  "documents": [
    {
      "title": "Angstrom Sciences safety data sheet: Lithium Phosphate (CAS 10377-52-3, revised 07/13/15)",
      "type": "sds",
      "url": "https://angstromsciences.com/wp-content/uploads/files/SDS/Lithium%20Phosphate.pdf",
      "year": 2015
    },
    {
      "title": "ProChem safety data sheet: Lithium Phosphate, product 2360",
      "type": "sds",
      "url": "https://prochemonline.com/wp-content/uploads/2021/06/2360.LithiumPhosphate.pdf"
    },
    {
      "title": "PubChem: Lithium phosphate (CID 165867), GHS classification summary",
      "type": "database",
      "url": "https://pubchem.ncbi.nlm.nih.gov/compound/165867"
    },
    {
      "title": "Sputter-Deposited Amorphous Li3PO4 Solid Electrolyte Films (Ohnishi and Takada, ACS Omega 7, 21199, open access)",
      "type": "paper",
      "url": "https://doi.org/10.1021/acsomega.2c02104",
      "year": 2022
    },
    {
      "title": "Dual function Li-reactive coating from residual lithium on Ni-rich NCM cathode material (Scientific Reports 11, 18590, open access)",
      "type": "paper",
      "url": "https://doi.org/10.1038/s41598-021-98123-4",
      "year": 2021
    },
    {
      "title": "USGS Mineral Commodity Summaries 2026: Lithium",
      "type": "report",
      "url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-lithium.pdf",
      "year": 2026
    },
    {
      "title": "USGS Mineral Commodity Summaries 2026: Phosphate Rock",
      "type": "report",
      "url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-phosphate.pdf",
      "year": 2026
    }
  ],
  "gaps": [
    "No ionic conductivity value is recorded. The sources print it only as powers of ten (for example 'more than 1×10-6 Scm-1' in the ACS Omega abstract and 1.1 x 10-6 in a LiPON powder-target paper), which the value check cannot match.",
    "The full text of the ACS Omega paper (doi 10.1021/acsomega.2c02104) returned HTTP 403 and the PMC copy was blocked, so the substrate temperature below which films stay amorphous, any activation energy and the film thickness were not read.",
    "Melting point is not settled: ULP and Angstrom Sciences give 837 °C, ProChem gives 1205 °C. No certificate of analysis for a batch was found to decide between them.",
    "Specific gravity 2.537 (ProChem), a molecular weight of 115.9 (PubChem) and 115.79 (ProChem) are printed without units, so they were not recorded as values.",
    "Water solubility of 0.027 g/100 mL at 25 °C appears in Wikipedia only; Wikipedia is used here for composition, not for property values, so it was not recorded.",
    "Crystal system, space group and lattice constants were not taken from a source fetched in this run (Wikipedia gives Pmn21 and lattice constants without units).",
    "No manufacturing or synthesis route was found in the sources fetched in this run, so the recipe line gives composition only.",
    "Crustal abundance of lithium and phosphorus was not read in this run (USGS PP 1802-A not fetched).",
    "The EU critical raw materials list was not checked in this run; the critical list entries cite the USGS 2025 list only (page dated November 6, 2025).",
    "Humidity ageing, thermal stability, electrochemical window and aluminium current-collector compatibility were not found in any source fetched in this run.",
    "No space-environment source (vacuum, radiation, thermal cycling, flight data) was found for Li3PO4.",
    "The Kurt J Lesker safety data sheet covers lithium phosphorous oxide, a different product, and was not used for hazards or properties.",
    "The 82% and 68.1% capacity retention values are for an NCM cathode with and without a Li3PO4 coating, not for pure Li3PO4.",
    "Molar mass, water solubility and capacity retention are not in spores/property-canon.yaml; snake_case names were used for them."
  ],
  "story": {
    "why": "Lithium phosphate (Li3PO4) is a white powder with the formula Li3PO4, made of lithium, phosphorus and oxygen. Its interest for batteries is as the material sputtered to make lithium phosphorus oxynitride (LiPON), a thin-film solid electrolyte. It is also tested as a coating on cathode particles. The sources we hold describe it as a ceramic sputtering target, not as an electrode material.",
    "uses": [
      {
        "where": "Thin-film batteries",
        "line": "Lithium phosphate is sold as a high-purity sputtering target. Goodfellow says reactive sputtering in nitrogen makes LiPON films with enhanced properties."
      },
      {
        "where": "Cathode coatings (research)",
        "line": "A 2021 study in Scientific Reports coated Ni-rich LiNi0.91Co0.06Mn0.03O2 cathode powder with 0.1 mol.% Li3PO4. The coated cathode kept 82% of its capacity after 100 cycles, against 68.1% for the uncoated cathode."
      }
    ],
    "can_do": [
      {
        "label": "Conduction in thin films",
        "line": "Amorphous films are the form that conducts ions. The NIMS record of the 2022 ACS Omega paper quotes the abstract: crystallization of Li3PO4 impedes ionic conduction. No conductivity value is recorded here, because the sources print it only as a power of ten.",
        "scope": "material"
      },
      {
        "label": "Purity offered",
        "line": "Suppliers list lithium phosphate at 99.99% assay (ULP and Ereztech). ULP also lists a 99.9% grade.",
        "benchmark": "assay_purity",
        "scope": "material",
        "value": "99.99%"
      }
    ],
    "compare": "Li3PO4 is not described by the sources as a cathode and it does not carry charge as an electrode. In the sources we hold it is a solid electrolyte precursor and a coating. Its supplier data agree on density, with 2.54 g/cm3 from ULP and 2.537 g/cc from the Angstrom Sciences SDS. The melting point conflicts: 837 °C from ULP and Angstrom Sciences, against 1205 °C from ProChem.",
    "compare_rows": [
      {
        "label": "Density",
        "benchmark": "density",
        "scope": "material"
      },
      {
        "label": "Melting point",
        "benchmark": "melting_point",
        "scope": "material"
      },
      {
        "label": "Molar mass",
        "benchmark": "molar_mass",
        "scope": "material"
      }
    ],
    "handling": [
      "Avoid dust and swallowing. The sources give it as harmful if swallowed (H302) and as an irritant of skin, eyes and airways (H315, H319, H335).",
      "The 2015 Angstrom Sciences SDS classes it as toxic if swallowed (H301). Treat it as toxic until the batch's own SDS has been read.",
      "After swallowing, rinse the mouth and do not induce vomiting, according to the ProChem SDS."
    ],
    "good_for": [
      "Thin-film battery research, where the material is sputtered to make LiPON electrolyte films (Goodfellow).",
      "Cathode coating experiments, where a 0.1 mol.% Li3PO4 layer raised capacity retention (Scientific Reports, 2021)."
    ],
    "watch_out": [
      "Crystallized Li3PO4 conducts ions poorly, and the sputtering conditions decide whether the film stays amorphous.",
      "The two supplier data sheets give melting points of 837 °C and 1205 °C, so confirm the value on the batch certificate.",
      "Hazard classes differ: Harmful if swallowed (H302) in most sources, but Toxic if swallowed (H301) in the 2015 Angstrom Sciences SDS."
    ],
    "verdict": "A sourced lithium compound for LiPON film and coating research. Ionic conductivity and the melting point are not settled by the sources we hold.",
    "recipe": {
      "line": "Li3PO4 is trilithium phosphate: three lithium atoms for each phosphate group, which is one phosphorus atom bonded to four oxygen atoms. The sources fetched in this run do not describe how it is made, so no process is given.",
      "parts": [
        {
          "name": "Lithium",
          "symbol": "Li",
          "role": "Lithium ions, the charge carriers that the thin-film electrolyte and coating depend on.",
          "atoms": 3,
          "atomic_weight": 6.94
        },
        {
          "name": "Phosphorus",
          "symbol": "P",
          "role": "Centre of the phosphate group that forms the rigid framework of the solid.",
          "atoms": 1,
          "atomic_weight": 30.974
        },
        {
          "name": "Oxygen",
          "symbol": "O",
          "role": "Completes the phosphate group (PO4).",
          "atoms": 4,
          "atomic_weight": 15.999
        }
      ]
    },
    "risk_groups": [
      {
        "title": "For people",
        "lead": "Most sources agree on harmful if swallowed and on irritation. One 2015 SDS gives a more severe class.",
        "points": [
          {
            "label": "Ingestion",
            "line": "PubChem's GHS summary gives H302 Harmful if swallowed for 100% of notifications, and the ProChem SDS agrees."
          },
          {
            "label": "Skin, eyes and airways",
            "line": "H315 Causes skin irritation, H319 Causes serious eye irritation and H335 May cause respiratory irritation appear in PubChem and the ProChem SDS."
          },
          {
            "label": "Conflicting class",
            "line": "The Angstrom Sciences SDS, revised 07/13/15, gives the signal word Danger and H301 Toxic if swallowed."
          }
        ],
        "level": 2,
        "verdict": "Harmful if swallowed; irritant"
      },
      {
        "title": "If it burns",
        "lead": "The ProChem SDS lists the decomposition products in a fire.",
        "points": [
          {
            "label": "Decomposition",
            "line": "Hazardous combustion and decomposition products are oxides of phosphorus and lithium oxides."
          }
        ]
      }
    ]
  },
  "updated": "2026-11-01",
  "review": {
    "status": "draft",
    "method": "assistant",
    "checked_values": 14,
    "unreachable": 2,
    "caveats": 1,
    "note": "Read by an AI assistant on 2026-11-01: 14 values recorded from pages fetched in this run. The ACS Omega page and PMC copy could not be opened (HTTP 403 and a verification page)."
  },
  "sources": {
    "ulp-li3po4": {
      "title": "Lithium Phosphate Powder (Li3PO4), supplier product page (ULP Materials)",
      "id": "products 03150800PD001 and 03150800PD002",
      "url": "https://ulpmat.com/product/lithium-phosphate-powder/",
      "kind": "web",
      "license": "supplier web page, cited not reproduced"
    },
    "prochem-page": {
      "title": "Lithium Phosphate, product 2360, supplier product page (ProChem Inc.)",
      "id": "product 2360; CAS 10377-52-3",
      "url": "https://prochemonline.com/product/lithiumphosphate-2360/",
      "kind": "web",
      "license": "supplier web page, cited not reproduced"
    },
    "prochem-sds": {
      "title": "Safety data sheet: Lithium Phosphate, product 2360 (ProChem Inc.)",
      "id": "product 2360; CAS 10377-52-3",
      "url": "https://prochemonline.com/wp-content/uploads/2021/06/2360.LithiumPhosphate.pdf",
      "kind": "datasheet",
      "license": "supplier document, linked not reproduced"
    },
    "angstrom-sds": {
      "title": "Safety data sheet: Lithium Phosphate (Angstrom Sciences, Inc.)",
      "id": "CAS 10377-52-3; EC 233-823-0; date of last revision 07/13/15",
      "url": "https://angstromsciences.com/wp-content/uploads/files/SDS/Lithium%20Phosphate.pdf",
      "year": 2015,
      "kind": "datasheet",
      "license": "supplier document, linked not reproduced"
    },
    "ereztech": {
      "title": "Lithium Phosphate, CAS 10377-52-3, supplier product page (Ereztech)",
      "id": "CAS 10377-52-3",
      "url": "https://ereztech.com/product/lithium-phosphate-10377-52-3/",
      "kind": "web",
      "license": "supplier web page, cited not reproduced"
    },
    "goodfellow": {
      "title": "Lithium Phosphate (Li3PO4) sputtering target, material information (Goodfellow)",
      "url": "https://www.goodfellow.com/usa/resources/lithium-phosphate-li3po4-sputtering-target-material-information/",
      "kind": "web",
      "license": "supplier web page, cited not reproduced"
    },
    "pubchem-li3po4": {
      "title": "PubChem compound record, Lithium phosphate (CID 165867)",
      "id": "CID 165867; CAS 10377-52-3",
      "url": "https://pubchem.ncbi.nlm.nih.gov/compound/165867",
      "kind": "database",
      "license": "public domain (NCBI)"
    },
    "nims-ohnishi2022": {
      "title": "Sputter-Deposited Amorphous Li3PO4 Solid Electrolyte Films (Tsuyoshi Ohnishi and Kazunori Takada, ACS Omega 7, 21199-21206), NIMS data record",
      "id": "doi:10.1021/acsomega.2c02104",
      "url": "https://mdr.nims.go.jp/datasets/3d69d5c5-6502-4edd-ac95-c60a40519d67",
      "year": 2022,
      "kind": "paper",
      "license": "Creative Commons BY 4.0 (as stated on the NIMS record)"
    },
    "sci-rep-2021": {
      "title": "Dual function Li-reactive coating from residual lithium on Ni-rich NCM cathode material for Lithium-ion batteries",
      "id": "doi:10.1038/s41598-021-98123-4 (Scientific Reports 11, 18590)",
      "url": "https://doi.org/10.1038/s41598-021-98123-4",
      "year": 2021,
      "kind": "paper",
      "license": "CC BY 4.0"
    },
    "usgs-mcs2026-lithium": {
      "title": "Mineral Commodity Summaries 2026, Lithium",
      "id": "USGS MCS 2026, February 2026",
      "url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-lithium.pdf",
      "year": 2026,
      "kind": "report",
      "license": "public domain (USGS)"
    },
    "usgs-mcs2026-phosphate": {
      "title": "Mineral Commodity Summaries 2026, Phosphate Rock",
      "id": "USGS MCS 2026, February 2026",
      "url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-phosphate.pdf",
      "year": 2026,
      "kind": "report",
      "license": "public domain (USGS)"
    },
    "usgs-crit2025": {
      "title": "About the 2025 List of Critical Minerals (USGS), page dated November 6, 2025",
      "id": "Final 2025 List of Critical Minerals",
      "url": "https://www.usgs.gov/programs/mineral-resources-program/science/about-2025-list-critical-minerals",
      "year": 2025,
      "kind": "web",
      "license": "public domain (USGS)"
    }
  },
  "license": "CC-BY-4.0",
  "url": "https://spacemushroom.com/profiles/lithium-phosphate/"
}