High Performance Lithium Battery Copper Foil

Short Description:

Product: Electrolytic copper foil, Rolled copper foil , Battery copper foil,

Material: Electrolytic copper, purity ≥99.9%

Thickness: 6μm,8μm,9μm,12μm,15μm,18μm,20μm,25μm,30μm,35μm

Width: maximum 1350mm, customize to different width.

Surface: double-sided shiny, one-sided or double-sized matte.

Packing: standard exporting package in strong plywood case.

Send email to us

Product Detail

Product Tags

Double-sided Shiny ED Copper Foil for Li-ion Battery

Performance characteristics:

Compared with single-sided matte and double-sided matte lithium copper foil, when double-sided shiny copper foil is bonded with the negative material, the contact area increases exponentially, which can significantly reduce the contact resistance between the negative fluid collector and the negative material, and improve the symmetry of the negative electrode sheet structure of the lithium ion battery. At the same time, the double-sided shiny lithium copper foil has good thermal expansion resistance, and the negative electrode sheet is not easy to break during the charge and discharge process of the battery which can extend the battery life.

Specifications: provide nominal thickness 8~35um in different width of double-sided shiny lithium copper foil.

Application: Used as a negative carrier and fluid collector for lithium-ion batteries.

Properties: double-sided structure symmetry, metal density close to the theoretical density of copper, the surface profile is extremely low, high elongation and high tensile strength. See below date sheet.

Nominal Thickness	Area weight g/m²	Elongation%	Roughness μm	Matte side	Shiny side
Nominal Thickness	Area weight g/m²	R.T.(25°C)	R.T.(25°C)	Matte side	Shiny side
6μm	50-55	≥30	≥3	≤3.0	≤0.43
8μm	70-75	≥30	≥5	≤3.0	≤0.43
9μm	95-100	≥30	≥5	≤3.0	≤0.43
12μm	105-100	≥30	≥5	≤3.0	≤0.43
15μm	128-133	≥30	≥8	≤3.0	≤0.43
18μm	157-163	≥30	≥8	≤3.0	≤0.43
20μm	175-181	≥30	≥8	≤3.0	≤0.43
25μm	220-225	≥30	≥8	≤3.0	≤0.43
30μm	265-270	≥30	≥9	≤3.0	≤0.43
35μm	285-290	≥30	≥9	≤3.0	≤0.43

Double/single-sided Matte ED Copper Foil For Li-ion Battery

Performance characteristics:

The matte side is more rough than the shiny one which brings better firmly bonded to the negative electrode material, not easy to fall off, and has strong compatibility with the negative electrode material.

Specifications: provide nominal thickness 9~18um in different width of double or single-sided matte lithium copper foil.

Application: Used as a negative carrier and fluid collector for lithium-ion batteries.

Properties: The product is formed with a columnar grain structure, and the roughness is rougher than that of the double-sided shiny lithium battery copper foil. what’s more, tts elongation and tensile strength are lower than those of double-sided shiny lithium battery copper foil as well. See below data sheet.

Nominal Thickness	Area weight g/m²	Tensile strength kg/mm²		Elongation %		Inoxidizability
Nominal Thickness	Area weight g/m²	R.T.(25°C)	H.T.(180°C)	R.T.(25°C)	H.T.(180°C)	Inoxidizability
9μm single side matte	85-90	≥25	≥15	≥2.5	≥2.0	non-oxidation constant temperature 160 °C/10mins
10μm double / single side matte	95-100	≥25	≥15	≥2.5	≥2.0
12μm double / single side matte	105-110	≥25	≥15	≥2.5	≥2.0
18μm double / single side matte	120-125	≥30	≥20	≥5.0	≥3.0