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Lithium Foil
Available Configurations
Properties common to all products in this list
| Thickness | Sides | Other Variant |
|---|---|---|
| 0.12 mm to 0.6 mm | 10 mm to 250 mm | Light Tight (Pinhole Free) |
Need custom configurations? Please contact us.
Key Features
Lithium Foil at 99.9% purity is widely used in research and laboratory settings for the development and testing of lithium metal batteries and solid-state battery technologies:
Uniform Thickness & High Purity for Precise Electrochemical Characterization
Uniform thickness and high purity facilitate precise electrochemical characterization, enabling detailed studies of lithium plating, dendrite formation, and interface stability — measurements that depend on consistent starting material to isolate the experimental variable under investigation.
Lowest Density of Any Metallic Element (0.534 g/cm³)
With a density of just 0.534 g/cm³ — the lowest of any metallic element — Lithium Foil contributes directly to the high gravimetric energy density that makes lithium metal the anode material of choice in next-generation battery chemistries pursuing maximum energy storage per unit mass.
Low Melting Point (180.5 °C) Requiring Controlled, Low-Moisture Handling
A melting point of 180.5 °C reflects lithium's characteristic low-temperature workability, while its high chemical reactivity requires careful handling under controlled, low-moisture conditions throughout cutting, storage, and electrode assembly to maintain foil integrity and electrochemical performance.
Direct Application in Coin Cell & Pouch Cell Assembly
Common applications include coin cell and pouch cell assembly, as well as prototype energy storage devices, where Lithium Foil's consistent quality and well-defined geometry provide a reliable anode material for both established and emerging battery cell formats.
Versatile Material for Battery Performance, Cycle Life & Safety Research
The foil's consistent quality supports investigations into battery performance, cycle life, and safety improvements, making it a versatile material in materials science and electrochemical energy storage research across both academic and industrial battery development programs.
Industrial Applications
Lithium Foil is used across battery research, solid-state battery development, and electrochemical energy storage wherever a high-purity, low-density lithium substrate is required for cell assembly or characterization:
- ✦ Lithium Metal & Solid-State Battery Development and Testing
- Widely used in research and laboratory settings for the development and testing of lithium metal batteries and solid-state battery technologies, where Lithium Foil's high purity and uniform thickness support the precise electrochemical characterization required to evaluate emerging battery chemistries and cell architectures.
- ✦ Lithium Plating, Dendrite Formation & Interface Stability Studies
- Used in detailed studies of lithium plating, dendrite formation, and interface stability, where Lithium Foil's consistent purity and well-defined geometry provide the reproducible starting material needed to isolate and characterize these critical battery degradation and failure mechanisms.
- ✦ Coin Cell & Pouch Cell Assembly
- Applied in coin cell and pouch cell assembly as a standard anode material, where Lithium Foil's consistent quality and low density support reliable, reproducible cell construction across both established research cell formats and prototype energy storage device development.
- ✦ Prototype Energy Storage Device Assembly
- Used in prototype energy storage device assembly, where Lithium Foil's combination of high purity, low density, and consistent quality supports the iterative design and testing cycles characteristic of early-stage energy storage technology development.
- ✦ Battery Performance, Cycle Life & Safety Improvement Research
- Supports investigations into battery performance, cycle life, and safety improvements, making Lithium Foil a versatile material in materials science and electrochemical energy storage research across academic and industrial programs studying next-generation battery technologies.
Material Properties
| Element | Value |
|---|---|
| Atomic number | 3 |
| Crystal structure | Body centred cubic |
| Electronic structure | He 2s¹ |
| Valences shown | 1 |
| Atomic weight( amu ) | 6.941 |
| Thermal neutron absorption cross-section( Barns ) | 63 |
| Photo-electric work function( eV ) | 2.4 |
| Natural isotope distribution( Mass No./% ) | 6/ 7.5 |
| Natural isotope distribution( Mass No./% ) | 7/ 92.5 |
| Atomic radius - Goldschmidt( nm ) | 0.157 |
| Ionisation potential( No./eV ) | 2/ 75.6 |
| Ionisation potential( No./eV ) | 3/ 122.4 |
| Ionisation potential( No./eV ) | 1/ 5.39 |
| Element | Value |
|---|---|
| Material condition | Polycrystalline |
| Poisson's ratio | 0.36 |
| Bulk modulus( GPa ) | 11.1 |
| Tensile modulus( GPa ) | 4.91 |
| Hardness - Vickers( kgf mm⁻² ) | <5 |
| Element | Value |
|---|---|
| Electrical resistivity( µOhmcm ) | 9.29@20°C |
| Temperature coefficient( K⁻¹ ) | 0.00435@0-100°C |
| Thermal emf against Pt (cold 0C - hot 100C)( mV ) | 1.82 |
| Element | Value |
|---|---|
| Boiling point( C ) | 1342 |
| Density( gcm⁻³ ) | 0.534@20°C |
| Element | Value |
|---|---|
| Melting point( C ) | 180.5 |
| Latent heat of evaporation( J g⁻¹ ) | 19600 |
| Latent heat of fusion( J g⁻¹ ) | 422 |
| Specific heat( J K⁻¹ kg⁻¹ ) | 3560@25°C |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 84.8@0-100°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 56@0-100°C |
Tolerances
| Thickness | <0.01mm | ±25% |
|---|---|---|
| Thickness | 0.01mm - 0.05mm | ±15% |
| Thickness | >0.05mm | ±10% |
| Linear dimension | <100mm | ±1mm |
| Linear dimension | >=100mm | +2 / -1% |