Item:OSW6fdea5daa0374b6b96bf5a0f72e5e82a
| Graphite [OSW6fdea5daa0374b6b96bf5a0f72e5e82a] | |
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| ID | OSW6fdea5daa0374b6b96bf5a0f72e5e82a |
| UUID | 6fdea5da-a037-4b6b-96bf-5a0f72e5e82a |
| Label | Graphite |
| Machine compatible name | Graphite |
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Description
A carbon material
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| Type(s)/Category(s) | PhysicalItem |
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This is a conceptual page intended for development purposes. The content is placeholder information that has not been verified.
Overview
Graphite is a carbon-based material that is often used as a negative electrode active material, especially in Li-ion batteries.
Properties
Qualitative Properties
| Property | Value |
|---|---|
| Material Type | Graphite |
| Category | Native Mineral |
| Crystal System | Hexagonal or Rhombohedral |
| Crystal Habit | Tabular, six-sided foliated masses; granular to compacted masses |
| Color | Iron-black to steel-gray |
| Luster | Metallic, earthy |
| Cleavage | Basal – perfect on {0001} |
| Fracture | Flaky, otherwise rough when not on cleavage |
| Tenacity | Flexible non-elastic, sectile |
| Density | 2.09–2.23 g/cm³ |
| Conductivity | High electrical and thermal conductivity |
| Optical Properties | Uniaxial (-) |
| Solubility | Soluble in molten nickel, warm chlorosulfuric acid |
| Other Characteristics | Strongly anisotropic, conducts electricity, greasy feel, readily marks |
Quantitative Properties
| Property | Value | Unit |
|---|---|---|
| Density | 2.09–2.23 | g/cm³ |
| Electrical Conductivity | ~10⁴–10⁵ | S/m |
| Thermal Conductivity | 100–400 | W/m·K |
| Specific Surface Area | 5–25 | m²/g |
| Interlayer Spacing | ~0.335 | nm |
| Mohs Hardness | 1–2 | Dimensionless |
| Melting Point (under pressure) | ~3650–3697 | °C |
| Young's Modulus | ~10–15 | GPa |
| Shear Modulus | ~5 | GPa |
| Coefficient of Thermal Expansion | ~-1 × 10⁻⁶ (parallel to layers) | /°C |
Use in Battery Cells
Below is a list of battery cells that use graphite as an active material
| Battery Cell | Type | IEC Code | |
|---|---|---|---|
| INR18650-MJ1 | Li-ion | INR18650 | |
Links to Other Published Resources
jsondata
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| name | "Graphite" |