DiffuCarb Hydrophilic Graphite Felt Sheet for Flow Battery, Electrolyzer, and Fuel Cell, CFBEFCDCHGFS

DiffuCarb brand graphite felt (specifically the GFB series) is high-purity, three-dimensional porous material that has become a cornerstone in electrochemical energy systems. While it shares a lineage with carbon felt, graphite felt is treated at much higher temperatures (typically above 2,000°C), giving it superior electrical conductivity and chemical resistance. 

(1) In redox flow battery application field, graphite felt acts as the active electrode where the liquid electrolyte undergoes oxidation and reduction. Its porous "felt" structure provides a massive surface area for the liquid ions to react and it also allows the electrolyte to flow through the electrode with low pressure drop.

(2) In electrolyzer application field, graphite felt is often used as a Porous Transport Layer (PTL) or a 3D scaffold for catalysts. It withstands the highly corrosive acidic or alkaline environments of the electrolysis cell. Moreover, due to its high porous structure, researchers often electroplate it with nickel, iron, or noble metals to create high-performance electrodes for the Hydrogen Evolution Reaction (HER).

(3) In fuel cell application field, graphite felt is used in specialized or high-temperature fuel cells (like H2/Br2 or microbial fuel cells). It facilitates the diffusion of gases and liquids to the catalyst sites. Its high conductivity (>99% carbon content) ensures that electrons generated in the reaction are moved efficiently to the external circuit with minimal heat loss.