Nickel Felt

THT nickel felt is manufactured using high-purity nickel fibers from 6 -40 um in diameter. Through a precision nonwoven felting process, in which the nickel fibers are needled and layered, followed by high-temperature vacuum sintering to form a monolithic structure.
Our nickel felt features a three-dimensional mesh structure with uniform pore size , high porosity, controllable microporous dimensions, and a large specific surface area. It has following characteristics:

Excellent corrosion resistance: Stable in alkaline, oxidizing, humid, and various corrosive chemical environments;
High-temperature stability: Maintains stable performance at 1000°C;
High electrical and thermal conductivity: Low electrical resistance and rapid heat transfer;
Excellent water and gas permeability: Three-dimensional, uniform porosity ensures stable water and gas fluxes and minimizes clogging;
High heat dissipation efficiency: Rapid heat exchange between the electrode and heat sinks;
Lightweight and highly flexible: Nickel fibers are soft and bendable, and can be cut or customized to irregular shapes

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仕様

材料	N6（Ni≥99%）
気孔率	50%-80%
寸法	1500*1500mm
Thickness	0.1-2mm
Working pressure	< 3 Mpa
Working temperature	800–1200 °C
Micron rating	3–100 μm
形	Round, square, or cut according to requirements

応用

Our nickel felt can be customized to meet various application requirements and is primarily used in the following areas:

Electrolytic hydrogen production equipment: alkaline electrolyzers, proton exchange membrane (PEM) electrolyzers, and anion exchange membrane (AEM) electrolyzers
Energy storage and fuel cells: fuel cells, flow batteries (gas diffusion layers and current collectors); core components for lithium-ion, nickel-metal hydride, and lithium-air batteries
Filtration and separation industry: High-temperature gas-liquid filtration media for removing impurities, particulates, and microorganisms to achieve purification and separation
Chemical industry: Catalyst supports to enhance catalytic reaction efficiency
Electromagnetic protection: Electromagnetic shielding materials to reduce electromagnetic interference in electronic devices
Research laboratories: Specialized substrates for various electrode experiments

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Our Nickel Felt VS Others

Raw Material Purity
THT nickel felt impurities are strictly controlled, ensuring no excess ions are released during electrolysis and maintain a consistently high electrolysis efficiency.
Sintering Strength
THT nickel felt adopts high-temperature vacuum sintering and fully fuses the fiber nodes. Prevent powder or fiber shedding and protect electrolysis equipment and keeping the electrolyte clean.
Pore Uniformity
THT nickel felt features a regular three-dimensional mesh structure with uniform pore size and porosity, ensuring consistent air permeability and electrical conductivity, stable gas production during electrolysis.
Alkali and Corrosion Resistance
THT nickel felt could resist powdering under long term alkaline condition. Other nickel felts gradually corrode and crumble when immersed in alkaline electrolyte, much shorter on service life;
Electrical Conductivity and Energy Consumption
THT nickel felts have excellent electrical conductivity and effectively reduce cell voltage, minimize electrical energy consumption, and lower long-term production costs.

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How to Identify Nickel?

1. Spectrometer Testing

Using an XRF fluorescence spectrometer or a direct-reading spectrometer, it is possible to directly determine whether the metal contains nickel and to measure its purity.

2. Density Calculation Based on Dimensions and Weight

Measure the sample’s dimensions, volume, and precise weight to calculate the material’s actual density. The standard density of pure nickel is 8.9 g/cm³. If the calculated density deviates significantly from this value, it indicates that the material is contaminated with large amounts of impurity metals such as iron and copper.

3. Chemical Spot Test

Moisten a cotton swab with dimethylglyoxime testing solution and rub it continuously on the metal surface for 30 seconds; if the swab turns a distinct pink or bright red, the material can be determined to contain nickel.

4.Magnet Test

Bring a magnet close to the sample. Pure nickel and nickel alloys exhibit weak magnetism and will be slightly attracted by the magnet; the strength of this attraction is far lower than that of strongly magnetic materials such as iron and ferritic stainless steel, making this a useful method for rapid preliminary screening.

Could you provide sample for test?

Yes, we could provide sample at beginning for your test.

What is your nickel felt density?

It depends on your nickel felt thickness, different thickness density is different, exact density you could お問い合わせ直接。

What is your nickel felt roughness?

Its roughness is Ra≤20um.

Could you also provide composite nickel felt?

Yes, we could .

Besides nickel felt, what is else material you could provide?

We could also provide チタン繊維フェルト, stainless steel fiber felt.

What kind of certificate you could provide during nickel felt shipment?

We provide a COA material analysis report for each batch, SEM micrographs, and third-party performance test reports to meet customers’ quality inspection and acceptance requirements for warehousing.

What is delivery time for nickel felt?

Most size we are available and would be 7 days after payment. Mass quantity or special size pls お問い合わせ自由に。

How should nickel felt be stored? Will it oxidize and rust during storage?

Nickel has better oxidation resistance than iron and is less prone to oxidation when stored in a dry environment for long periods; for long-term storage, vacuum-sealed, moisture-proof packaging is recommended.

How would you pack nickel felt?

Inner layer: PE barrier film + vacuum-sealed moisture-proof aluminum foil bag
Middle layer: Full-wrap bubble wrap cushioning with corner protection;
Outer layer: Thickened five-layer corrugated cardboard export carton; multiple rolls securely fastened together in a plywood crate