Copper Foil Solid-state Lithium Battery Double-sided Light Research Soft Electrolytic Copper Foil Ultra-thin Electrode Current Collector Rolled Copper Foil

Product Overview​​

Our dual-sided glossy electrolytic copper foil is engineered specifically for solid-state lithium battery R&D and prototyping. With thickness options from ​​8μm to 35μm​​, this ultra-smooth (Rz ≤3.0 μm) current collector delivers exceptional mechanical stability under high-temperature (180°C) solid-state electrolyte processing conditions while maintaining optimal flexibility for electrode fabrication.

​​Key Specifications​​

RT = Room Temperature (25°C)

Material Advantages​​

1. ​​Solid-State Battery Optimization​​

   • Ultra-smooth dual-sided finish (Rz ≤3.0 μm) minimizes interfacial voids with sulfide/oxide solid electrolytes
   • Maintains mechanical integrity at solid-state processing temperatures (180°C tensile strength ≥20 kg/mm²)

2. ​​Research-Grade Flexibility​​

   • Soft temper design enables >9% elongation for wrinkle-free electrode laminates
   • Compatible with solvent-free dry electrode manufacturing

3. ​​Customization Options​​

   • ​​Antioxidant treatments​​: Enhanced stability for air-sensitive solid electrolytes
   • ​​Thickness variants​​: Sub-8μm foils available for ultra-high-energy-density prototypes
   • ​​Surface modifications​​: Lithiophilic coatings (CuO nanoneedles, Ag nanoparticles)

Applications​​

• ​​Solid-State Battery Prototyping​​: Sulfide (Li₆PS₅Cl) and oxide (LLZO) electrolyte integration
• ​​Lithium Metal Anode Substrates​​: Dendrite suppression via uniform current distribution
• ​​Flexible Battery Research​​: Foldable/stretchable current collector development

Technical Notes​​

• ​​Certification​​: Compliant with GB/T standards (test methods per manufacturer specifications)
• ​​Packaging​​: Vacuum-sealed rolls with desiccant (100m/roll standard)
• ​​Customization​​: Surface density and antioxidant properties negotiable

GUANGDONG XWELL TECHNOLOGY CO., LTD. is a high-tech enterprise specializing in intelligent equipment design, production and sales, providing mechanical engineering technology design and consulting services, electronic engineering design and consulting services. XWELL's core team was established in 2010 and officially established in June 2014. XWELL relies on South China University of Technology(SCUT), and the core team is composed of several doctors and masters from SCUT.

XWELL's main products are battery production line machines, such as spot welding machine, battery sorting machine, battery sticking machine, battery capacity grading machine, battery charge and discharge aging machine, battery general testing machine, and so on. The main application areas are new energy lithium batteries, automobiles and other industries, Especially in the fields of new energy, automotive wiring welding and other fields, XWELL has accumulated rich engineering experience and mastered a full set of core technologies, and can provide customers with a complete set of services from technology to equipment, helping customers to establish efficient and reliable production lines in the shortest time .