Composite Metal Foil
■ Introduction
Current collectors play an important role in the charge/discharge process of batteries. In addition to the basic mechanical properties of metal foil, electroplating a layer of lithiophilicity on the surface of copper foil to reduce the nucleation over potential and inhibit the formation of lithium dendrites in lithium batteries. The composite metal current collector will change the deposition morphology, coulombic efficiency, cycle life and safety of lithium metal.
■ Application
▶ Lithium Metal Battery.
▶ Anode-free Lithium Metal Battery.
Primer Technology High-Frequency Copper Foil Substrates Using Nodular Free Copper Foil
■ Introduction
In view of the current global trend toward high-frequency electronic devices—especially driven by the demand in 5G base stations, the Internet of Things (IoT), and cloud computing industries— information and communication products are moving toward high speed, high frequency, and high-capacity wireless transmission. High-frequency copper-clad laminates(CCLs)are composed of ultra-low dielectric resin materials and ultra-flat copper foils. Since the adhesion between these two materials is extremely poor, a primer layer is required to enhance the peel strength between them without affecting the electrical properties of the laminate.
■ Features
▶ Copper foil Rz ≤ 0.5μm.
▶ Nodular free.
▶ Primer thickness ≤ 4μm.
▶ Good dielectric property.
▶ Good peel strength.
■ Result
■ Target user
▶ Copper foil or CCL manufacture
Casting Type PTFE Iaminate
■ Introduction
▶ The demand for PTFE laminates in the market has been increasing along with the development of high-frequency
communication applications, such as satellite down converters and automotive collision-avoidance radars. On the other
hand, with the rapid growth of AI high-speed digital transmission requirements, PTFE laminates have also begun to be
used in these applications.
▶ Conventional non-glass-fabric PTFE substrates are formed by calendering and then laminated with copper foil at high
temperature. The minimum thickness of calendered PTFE is 125μm. For thinner thicknesses, a coating process is
required.
▶ This technology enables the design of PTFE substrate formulations with different dielectric constants(Dk)according to
various application requirements, with a dissipation factor(Df) ≤ 0.0007.
■ Features
▶ PTFE thickness ≤ 125μm.
▶ Dk can be designed,ex: D= 2.8 or 2.2.
▶ Water type formula.
▶ Uniform Dk、Df.
▶ Conducted by casting method.
■ Result
■Target user
▶ CCL manufacture.
■ Contact Us
Material and Chemical Research Laboratories
Dept. of Applied Electrochemistry
Research(K400)
Chiu-Yen Chiu
Tel:03-5915278
E-mail:chiuyen@itri.org.tw
Simon Huang
Tel:03-5916971
Email:itriB30288@itri.org.tw