High purity, low impurity double-sided electrolytic copper foil for lithium-ion batteries

Electrolytic copper for lithium batteriesFoil is a copper foil specially developed and produced by Advanced Institute Technology for the lithium battery manufacturing industry. This electrolytic copper foil has the advantages of high purity, low impurities, good surface smoothness, flat surface, uniform tension, and easy coating. Electrolytic copper foil for batteries has higher purity and better hydrophilicity, which can effectively increase the number of battery charging and discharging cycles and extend the battery's cycle life. At the same time, Advanced Institute Technology can cut according to customer requirements to meet their material needs for different battery products.

Product specifications:

The company can provide double-sided lithium battery copper foil with nominal thickness of 4.5-20 µ m and different widths.

Product performance:

The product has characteristics such as symmetrical double-sided structure, metal density close to the theoretical density of copper, extremely low surface profile, high elongation and tensile strength (see Table 1).

Product Usage:

Can be used as a negative electrode carrier and current collector for lithium-ion batteries.

Advantages of use:

Compared with single-sided and double-sided lithium copper foil, when it is bonded to the negative electrode material, the contact area increases exponentially, which can significantly reduce the contact resistance between the negative electrode current collector and the negative electrode material, improve the symmetry of the negative electrode structure of lithium-ion batteries. At the same time, double-sided photovoltaic lithium copper foil has good resistance to thermal expansion, and the negative electrode is not easily broken during charging and discharging, which can extend the service life of the battery.

Table 1: Characteristics of Double sided Lithium ion Battery Copper Foil