Highly Porous Open Cell Nickel Cobalt Foam
서론
- Nickel cobalt foam is a 3D open-cell metal foam with very high porosity, large specific surface area and excellent electrical conductivity. Its interconnected Ni–Co skeleton provides abundant active sites and low-resistance pathways for electron and ion transport, making it ideal as a current collector and substrate for Ni-MH and Ni-Zn batteries, supercapacitors and alkaline water electrolysis electrodes. The foam can be easily cut, punched and formed to size for both laboratory research and industrial production.
- This Ni–Co foam features good mechanical strength and stable performance in alkaline electrolytes, and is widely used as a carrier for nickel/cobalt hydroxide or oxide active materials. It is suitable for OER/HER electrocatalysts for water splitting, fuel-cell catalyst supports and various electrochemical reactors. By replacing traditional metal plates or meshes, nickel cobalt foam helps reduce internal resistance, increase energy and power density, and extend the cycle life of energy storage and conversion systems.
사양
| 유형 | Open‑cell Ni‑Co alloy foam / nickel‑cobalt porous metal foam |
| Purity / Alloy Base | Ni‑Co alloy system (typically Ni as main component with Co as alloying element; optional trace elements to adjust mechanical strength, corrosion resistance and catalytic activity, depending on specific grade) |
| 양식 | Sheet, plate, strip, roll, or custom‑cut blocks/parts; can be supplied as bare foam or with surface treatment / active coating (e.g. Ni/Co hydroxides, oxides, or other catalysts) |
| 셀 크기 (PPI) | Commonly 10–110 PPI (pores per inch), with coarse (10–30 PPI), medium (30–60 PPI) and fine (60–110 PPI) structures; special pore sizes available on request |
| 두께 | Standard about 0.5–5 mm for most electrode substrates; thicker types up to ~20 mm can be customized for filters, catalyst supports and structural applications |
| 크기 및 모양 | Typical sheets such as 100 × 100 mm, 200 × 300 mm, 300 × 500 mm; can be cut, punched, stamped, rolled, or formed into cylinders, discs, strips, and complex shapes according to customer drawings |
| 다공성 | Approx. 90% – 98% (highly porous 3D network); exact value depends on PPI, density and manufacturing process |
| 개방 셀 비율 | Usually ≥ 95% open‑cell interconnected structure, providing continuous channels for gas/liquid flow and ion/electron transport |
| 부피 밀도 | Typically about 0.15–0.8 g/cm³ (adjustable via porosity, PPI and alloy composition), much lower than bulk nickel/cobalt while maintaining metallic conductivity |
| 표면 밀도 | Approx. 150–4500 g/m² depending on thickness, porosity and density; lighter foams for high‑power electrodes, heavier foams for high‑capacity and structural use |
| Specific Surface Area | Large effective surface area due to 3D skeleton (commonly several hundred to several thousand m²/m³, depending on pore size and structure), ideal for electrochemical reactions and catalysis |
| Thermal Conductivity (Effective) | Effective thermal conductivity typically around 1–15 W/m·K (reduced compared with bulk Ni/Co due to high porosity), still suitable for heat dissipation and thermal management in electrochemical systems |
| Electrical Conductivity | Good metallic conductivity; bulk Ni‑Co alloys ~10⁶ S/m level, effective conductivity reduced by porosity but remains suitable for use as current collectors, high‑power electrodes and catalyst supports in batteries, supercapacitors and electrolyzers |
| Mechanical Strength (Compressive) | Compressive strength typically about 1–8 MPa for common electrode‑grade foams (varies with density, PPI and alloy composition); higher density foams show higher strength and stiffness |
| Average Tensile Strength (N/20 mm) | For thin and medium‑density strips: vertical ≥ 15 N/20 mm, horizontal ≥ 10 N/20 mm (reference values; actual data depend on product thickness, porosity and processing) |
| Temperature Resistance | Suitable for long‑term use in alkaline and neutral electrochemical environments at typical operating temperatures (room temperature to ~80–120 ℃); in inert or mild oxidizing atmospheres, Ni‑Co alloy foam can generally withstand several hundred degrees Celsius (exact limit depends on alloy composition and environment) |
| 외관 | Metallic gray to dark gray Ni‑Co surface, uniform color, with 3D sponge‑like structure; surface without obvious defects such as large blind holes, severe cracks, heavy oxide scale flaking or severe deformation; can be supplied degreased or activated for electrochemical use |
| Chemical Composition | Ni‑Co multi‑component alloy; Ni provides basic conductivity, corrosion resistance and mechanical strength, while Co improves electrocatalytic activity (e.g. OER/HER), mechanical properties and stability; detailed composition according to specific grade or customer requirements |
| Corrosion & Alkali Resistance | Good corrosion resistance in alkaline electrolytes (e.g. KOH, NaOH) and many neutral aqueous solutions; commonly used as a substrate for nickel / cobalt hydroxide or oxide active materials in alkaline batteries, supercapacitors and water‑electrolysis electrodes; not recommended for strong acids, strong oxidizing acids or highly aggressive halide environments without additional protection |
| 유연성 | Thin and medium‑porosity Ni‑Co foam sheets have certain flexibility and can be slightly bent, rolled or compressed; stiffness increases with thickness and density. Excessive repeated bending may cause local fracture of the foam skeleton |
| Elongation Rate (%) | Typically low compared with fully dense ductile alloys; for thin, high‑porosity foams, elongation is usually a few percent level (reference: ~2–5% depending on structure and direction) |
| Processability | Can be cut, punched, welded, spot‑welded, laser‑cut or coated by electrodeposition, chemical deposition, dip‑coating and spraying; easy to combine with various active materials for electrodes and catalysts |
| Surface Treatment / Coating (Optional) | Can be supplied with nickel / cobalt hydroxide, nickel‑cobalt oxide, Ni‑Fe / Ni‑Co‑Fe catalysts, precious metals, or other functional coatings to enhance capacity, catalytic activity or corrosion resistance |
| Typical Electrochemical Applications | Substrates / current collectors for Ni‑MH batteries, alkaline batteries, Ni‑Zn batteries, and some Li‑ion / Li‑S composite electrodes; high‑power supercapacitor electrodes; oxygen evolution (OER) and hydrogen evolution (HER) electrocatalyst supports in alkaline water electrolysis; electrodes for metal plating, electro‑oxidation, electro‑reduction and other electrochemical processes |
| Other Applications | Catalyst supports in fuel cells and electrochemical reactors, porous current collectors for hybrid energy storage, conductive 3D scaffolds for sensors, gas diffusion and fluid distribution structures where high surface area and conductivity are required |
| Main Features & Advantages | High porosity and large surface area for improved reaction area and loading of active materials; excellent metallic conductivity and low internal resistance; 3D interconnected structure for efficient mass transfer and gas release; good mechanical stability in alkaline environments; can significantly enhance energy density, power density and cycle life of electrochemical devices compared with traditional flat metal substrates |
차원 (두께* 길이*너비)
| 0.08mm*300mm*200mm | 0.2mm*200mm*300mm | 0.3mm*200mm*300mm |
| 0.5mm*200mm*300mm | 0.7mm*200mm*300mm | 0.9mm*200mm*300mm |
| 1.0mm*200mm*300mm | 1.3mm*200mm*300mm | 1.5mm*200mm*300mm |
| 1.7mm*200mm*300mm | 2.0mm*200mm*300mm | 5mm*200mm*300mm |
| 10mm*200mm*300mm | 30mm*200mm*300mm | 크기는 맞춤 제작이 가능합니다. |
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