An Enterprise In Qinghai Become The Largest Producer And Supplier Of Lithium Battery Copper Foil Worldwide

Recently, the Administrative Commission of Xining (National) Economic and Technological Development Zone announced that the copper foil capacity in Qinghai has ranked the first place in China for successive 7 years, boasting a domestic market share of over 30% and a global market share of over 20%, and an enterprise in the Zone has become the largest producer and supplier of lithium battery copper foil worldwide.

With the rapid development of 5G commercialization, intelligent manufacturing and new energy vehicle industry, lithium battery industry has seen strong demand. As a critical component in lithium battery, the thickness of electrolytic copper foil has direct impact on the energy density and safety of the batteries. In May 2018, Qinghai Electronic Material Industry Development Co., Ltd. affiliated to Nuode Group continuously increased the precision and yield of copper foil for lithium battery through continuous technological improvement, and successfully took the lead in developing the production technology for copper foil (thickness of just 6 μm and width of up to 1380 mm) specifically used for high-end lithium-ion battery and realized mass production worldwide.

The above copper foil boasts excellent downstream processability, and can withstand the thermal expansion stress due to charging and discharging, thus significantly improving the service life of lithium-ion battery. Currently, famous electronics enterprises in China including CATL and BYD are purchasing electrolytic copper foils from Nuode Group’s subsidiary in Qinghai. According to public information, Nuode Copper Foil has ranked the first place in China for successive 7 years, boasting a domestic market share of over 30% and a global market share of over 20%, making it the largest producer and supplier of lithium battery copper foil worldwide. Moreover, nearly 100 patents for invention also represent its leading R&D capability in the industry.

At present, after years’ development, the lithium battery industry in Xining (National) Economic and Technological Development Zone has accumulated the advantage of industry cluster development in terms of industry supporting facilities, manpower and technology, attracting a number of world-famous suppliers of batteries of electric vehicles and famous industry players in China. Moreover, the supporting facilities of copper foil and aluminum foil materials for lithium ion batteries have been established successively in the Zone.