Jiujiang Defu Technology Co., Limited

Chinese maker of electrolytic copper foil for batteries and circuit boards

What Jiujiang Defu does

Jiujiang Defu Technology makes very thin copper sheets, called electrolytic copper foil, made by depositing copper through electrolysis. Most of it goes into lithium-ion batteries, where the foil carries current, and into printed circuit boards for electronics, cars and high-speed communications. It sells in China and abroad.

How Jiujiang Defu makes money

The company earns most of its revenue by making and selling lithium-battery copper foil and electronic circuit copper foil to battery and PCB manufacturers. It also sells related items such as copper foil additives, titanium anodes and chemical reagents, and has small property rental and trading businesses.

Products & services

• Lithium battery copper foil (high-strength, ultra-high-strength, high-elongation grades)
• PCF porous copper foil
• Copper foil for high-frequency and high-speed PCBs
• Automotive circuit board and flexible board copper foil
• Titanium anodes for electrolytic copper foil and PCB plating
• Copper foil additives and chemical reagents