Lithium Foil

Lithium Foil is widely used in research and laboratory settings for the development and testing of lithium metal batteries and solid-state battery technologies. Its uniform thickness and high purity facilitate precise electrochemical characterization, enabling detailed studies of lithium plating, dendrite formation, and interface stability. Common applications include coin cell and pouch cell assembly, as well as prototype energy storage devices. 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.

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Tolerance

Properties

Reference & Citations

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Tolerances

Foil

Thickness	<0.01mm	±25%
Thickness	0.01mm - 0.05mm	±15%
Thickness	>0.05mm	±10%

Material Properties for Metals

Atomic 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

Mechanical Properties

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

Electrical Properties

Element	Value
Electrical resistivity( µOhmcm )	9.29@20@20°C
Temperature coefficient( K⁻¹ )	0.00435@0-100°C
Thermal emf against Pt (cold 0C - hot 100C)( mV )	1.82

Physical Properties

Element	Value
Boiling point( C )	1342
Density( gcm⁻³ )	0.534@20°C

Thermal Properties

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