AvCarb Graphite Felt & Carbon Felt

Electrode Materials for Flow Batteries, Electrolysis & Electrochemical Systems

Product Overview

AvCarb Graphite Felt and Carbon Felt are high-performance porous carbon materials widely used as electrode substrates in advanced electrochemical systems. These materials provide excellent electrical conductivity, chemical stability, and high surface area, making them ideal for applications requiring efficient electron transfer and fluid transport.

The Graphite Felt (G Series) offers superior electrical conductivity and corrosion resistance, making it suitable for demanding environments such as redox flow batteries and water electrolysis systems.

The Carbon Felt (C Series) provides a cost-effective alternative with good conductivity and mechanical stability, commonly used in laboratory experiments and fuel cell systems.

Key Features

·High electrical conductivity for efficient electron transfer

·Excellent chemical stability in electrochemical environments

·High porosity structure enabling efficient electrolyte transport

·Good mechanical strength and compressibility

·Available in multiple thicknesses for different reactor designs

·Suitable for high-temperature and corrosive environments

Product Series

Graphite Felt (G Series)

Graphite felt is produced by high-temperature graphitization of carbon fibers, resulting in improved conductivity and enhanced corrosion resistance.

Typical applications include:

·Redox Flow Batteries (Vanadium Flow Batteries, Iron Flow Batteries)

·Water Electrolysis Systems

·Electrochemical Flow Reactors

·Hydrogen Production Systems

·Electrochemical Energy Storage

Carbon Felt (C Series)

Carbon felt is a carbon fiber-based porous electrode material offering good conductivity and mechanical stability at a lower cost.

Typical applications include:

·Fuel Cell Research

·Laboratory Electrochemical Experiments

·Electrode Substrates for Catalyst Coating

·Gas Diffusion Systems

Technical Specifications

Graphite Felt (G Series)

Model	Material	Thickness	Bulk Density	Areal Weight	Through-Plane Resistivity	Carbon Content	Ash Content	Notes
G100	Graphite Felt	3.2 mm (3200 μm)	0.08 g/cm³	245 g/m²	<3 Ω·mm	≥99%	<0.2%	—
G150	Graphite Felt	4.8 mm	0.11 g/cm³	480 g/m²	250 mΩ·cm	—	—	—
G200	Graphite Felt	6.5 mm (6500 μm)	0.07 g/cm³	480 g/m²	<3 Ω·mm	≥99%	<0.2%	—
G280A	Graphite Felt (Hydrophilic)	2.8 mm @1.7 kPa	0.08 g/cm³	225 g/m²	<150 mΩ·cm² @43 kPa	—	—	Pre-oxidized
G300A	Graphite Felt	3.4 mm (3400 μm)	0.09 g/cm³	300 g/m²	125 mΩ·cm²	—	—	—
G475A	Graphite Felt	4.7 ±0.7 mm	0.107 ±0.018 g/cm³	440 ±44 g/m²	<200 mΩ·cm² @6.3 psi	—	—	Oxidation Rate <4%
G600A	Graphite Felt	6.1 mm (6100 μm)	0.11 g/cm³	639 g/m²	109 mΩ·cm²	—	—	—
G650A	Graphite Felt (Hydrophilic)	6.5 mm	0.11 g/cm³	665 ±50 g/m²	<200 mΩ·cm²	—	—	Pre-oxidized

Carbon Felt (C Series)

Model	Material	Thickness	Bulk Density	Areal Weight	Through-Plane Resistivity	Carbon Content	Ash Content
C100	Carbon Felt	3.2 mm (3200 μm)	0.09 g/cm³	285 g/m²	<4 Ω·mm	≥95%	<0.4%
C200	Carbon Felt	6.5 mm (6500 μm)	0.08 g/cm³	530 g/m²	<4 Ω·mm	≥95%	<0.4%
C280	Carbon Felt	3.2 mm	0.09 g/cm³	285 g/m²	<4 Ω·mm	≥95%	<0.4%

Parameter Explanation

Parameter	Description
Thickness	Thickness of the felt material
Bulk Density	Density of the material structure
Areal Weight	Weight per unit area
Through-Plane Resistivity	Electrical resistivity in the vertical direction
Carbon Content	Percentage of carbon in the material
Ash Content	Residual inorganic content after combustion
Oxidation Rate	Rate of oxidation under high-temperature conditions

Graphite Felt vs Carbon Felt

Material	Characteristics	Typical Applications
Graphite Felt (G Series)	Higher conductivity and corrosion resistance	Flow batteries, electrolysis systems
Carbon Felt (C Series)	Lower cost, moderate conductivity	Fuel cells, laboratory electrochemical experiments