Carbon-Coated Copper Foil 12±1μm for Lithium Batteries | 260mm Width with ≥265MPa Tensile Strength

Price Negotiable

Price: 50-100000USD/Negotiable

MOQ: 1m

Delivery Time: 5-8 working days

Brand: XWELL

Product Description

Product Overview

Our carbon-coated copper foil is a high-performance conductive substrate engineered for lithium-ion battery anodes, particularly in high-energy-density applications. Featuring a uniform carbon coating and ultra-high-purity copper base, this foil significantly enhances electrode conductivity, adhesion, and cycle stability. Ideal for electric vehicle batteries, energy storage systems, and advanced consumer electronics.

Key Features

Superior Conductivity

Surface resistivity <30Ω/25μm² for low impedance and efficient charge transfer
Copper purity >99.99% ensures minimal energy loss

Mechanical Strength

Tensile strength ≥265MPa for structural integrity
Elongation rate ≤6.0% prevents cracking during electrode processing

Precision Coating

Single-side carbon layer 1μm thickness
Total thickness 12±1μm for uniform and controllable application

Customizable Dimensions

Standard width: 260±1mm
Coating width: 227±1mm

Technical Specifications

Parameter	Specification
Coating Thickness	1μm (single side)
Surface Resistivity	<30Ω/25μm²
Total Width	260±1mm
Coating Width	227±1mm
Base Foil Thickness	10±1.0μm (copper)
Copper Purity	>99.99%
Total Thickness	12±1μm (post-coating)
Tensile Strength	≥265MPa
Elongation Rate	≤6.0%

Applications

Lithium-Ion Batteries: Enhances anode performance for silicon-carbon and graphite systems
High-Power Devices: Supports fast charging/discharging in electric vehicles and drones
Thin-Film Electronics: Used in flexible circuits and advanced sensors

Quality Advantages

Enhanced Battery Life: Reduces delamination risks during cycling
Process Compatibility: Suitable for slurry coating, calendering, and stacking operations
Quality Consistency: Strict ±1μm tolerance control for industrial-scale production