Main material for eco-friendly electric vehicle batteries
One of the four materials for electric vehicle batteries is exactly the cathode material. Battery foil (copper foil) is a plate material that supports this cathode. The copper foil business, which is the main material for electric vehicle batteries, will continue to grow as the production of electric vehicles is expected to increase and the battery consumption of electric vehicles is expected to increase as the future industry changes to respond to climate change. I expect it to grow significantly.
Korea Zinc will established KZAM in 2020, entered the copper foil business, investing 150 billion won, we will contribute to the expansion of the future value industry by producing 13,000 tons of copper foil annually.
Competitiveness
Copper foil made by Global NO.1 smelting technology
Utilizing Korea Zinc's unique technology of dissolution and electrolysis, we can make our own stable battery foil for secondary batteries.
Korea Zinc is evaluated to be able to bring technological advantages to the copper foil field of similar construction methods, based on its unique technological capabilities and know-how in the existing non-ferrous metal smelting industry. In addition, these technological capabilities are expected to bring superior quality and cost competitiveness. The annual production of copper foil of 13,000 tons is also capable of producing 180,000 electric vehicles equipped with 50kwh batteries.
1. Technology efficiency
Maximize raw material dissolution efficiency and electrolysis efficiency
Electrolyte manufacturing, maintenance, and operation capabilities
2. Supply stability
Stable raw material supply through in-house electric production
Cu can be recovered from various raw materials
(Waste batteries & process scrap, non-ferrous metal smelting process by-products, E-Scrap, waste electric wires, low-grade Cu etc.)
3. Mass production capacity and overseas expansion plan
In 2022yr secure the 13,000 tons of mass production capacity and additional expansion plan
plan to expand into the US / Europe
Copper Foil manufacturing process
Raw material
Korea Zinc uses self-manufactured electrolytic copper and purchased copper scrap (Cu Scrap) raw materials
Melting and micronization process
Melting raw materials using high-frequency electric induction furnace equipment
Dissolution and Electrolyte Manufacturing Process
Dissolving copper raw materials in sulfuric acid to produce copper sulfate solution
Quality Inspection and Packaging Process
Electricity is supplied to the anode drum and the anode to manufacture battery foil with the thickness required by customers through electro-winning electrolysis technology
Heat treatment and slitting process
Heat treatment is performed at the temperature and time set by our company to control the curl quality of battery foil, improving the processability of manufacturing secondary batteries for customers
Milling process
Quality inspection for special characteristics specified by the customer, such as strength, elongation, thickness, roughness, and gloss
