Energy storage composite copper foil concept

How can Composite copper foil improve the energy density of a battery?

Increasing energy density Composite copper foil with a sandwich structure can significantly reduce the weight of the current collector, thereby enlarging the energy density of the battery. In addition, the rough surface of composite copper foil can enhance the bonding strength between current collector and active material.

Why should we use copper & aluminum composite foils in energy storage?

At the same time, the raw material price of aluminum is much lower than that of copper, which can lead to a reduction in the raw material cost of the battery. Therefore, copper–aluminum composite foils are expected to be applied in the energy storage field that prioritizes high energy density and lightweight over excellent cycling performance.

Can Composite copper foil be used as anode current collector?

The application of composite copper foil as anode current collectors not only enlarge energy density of lithium-ion batteries, but also improves the safety and cycling life. Therefore, composite copper foil exhibits a broad development prospect in the development of high-performance lithium-ion batteries. 3.2.1. Increasing energy density

Is polypropylene a good support layer for copper foil current collectors?

Polypropylene (PP) film is widely used as the support layer of composite copper foil current collectors (CCs) due to its excellent mechanical properties and chemical stability. However, the interface adhesion between the PP layer and the copper layer is weak, due to the significant difference in surface energy.

Can copper foil be used as a current collector for lithium-ion batteries?

As a current collector for lithium-ion batteries, composite copper foil does not affect the electrochemical reaction in the battery, which endows wide applicability.

What is pet Composite copper/aluminum foil?

Under the trend of lightening and thinning, PET composite copper/aluminum foil can achieve a composite current collector with a thickness of less than 8 μm, which plays an important role in the lightweight of power batteries. Power battery has large market demand and there are so many excellent power battery companies.