Copper Foam Sheet & Roll as Battery Anode Current Collector, CBACCCF

A copper foam anode current collector is an advanced three-dimensional (3D) porous material that moves beyond traditional 2D copper foils. It is essentially a "metallic sponge" with an interconnected network of copper ligaments and open pores. It has the following features of (a) High Porosity: Typically ranges from 70% to 98%, meaning the material is mostly empty space. (b) 3D Interconnected Network: Unlike a mesh or perforated foil, the foam has a stochastic (randomized) honeycomb-like structure that provides electrical pathways in all directions. (c) Large Surface Area: Provides a massive amount of contact area for electrochemical reactions, significantly reducing local current density. 

Copper foam is specifically designed to solve the "bottlenecks" of high-capacity and high-safety batteries:

(1) Dendrite Suppression: In lithium-metal batteries, lithium tends to grow in needle-like "dendrites" that cause fires. The 3D structure of the foam provides "pockets" for lithium to deposit uniformly, physically preventing dendrite growth.

(2) Volume Expansion Accommodation: High-capacity materials like Silicon expand massively during charging. The open pores of the foam provide internal room for this expansion, preventing the battery from swelling or the electrode material from cracking.

(3) Ultra-Fast Charging (7C–10C): Because the active material is embedded within the conductive foam rather than sitting on top of a flat sheet, electrons and ions have much shorter distances to travel. This can support full charges in under 10 minutes.

Part Number	CBACCCF (C-BACC-CF)
Purity	>99.98%
Dimension	(1) Sheet: T 0.1mm * W 100mm * L 100mm (2) Sheet: T 0.2mm * W 100mm * L 100mm (3) Sheet: T 0.3mm * W 100mm * L 100mm (4) Sheet: T 0.5mm * W 100mm * L 100mm (5) Sheet: T 0.8mm * W 100mm * L 100mm (6) Sheet: T 1.0mm * W 100mm * L 100mm (7) Roll: T 0.5mm * W 300mm * L 480mm (8) Roll: T 1.6mm * W 300mm * L 480mm
Other foam format	If customer need other foam format, we can provide it upon request.

References:

1. G. Yang, et al., Graphene anchored on Cu foam as a lithiophilic 3D current collector for a stable and dendrite-free lithium metal anode, J. Mater. Chem. A, 2018,6, 9899-9905. 
2. Y. Zhou, et al., A nitrogen-doped-carbon/ZnO modified Cu foam current collector for high-performance Li metal batteries, J. Mater. Chem. A, 2019,7, 5712-5718.