Name: Carbon paper HCP020N (hydrophilic)
Brand: Canrud
Price: 36.25 USD

Question 1

Accepted Answer

We have not used this material for electrocatalysis; however, from the basic requirements of electrochemical reactions, the core consideration in choosing the substrate material is compatibility with the solvent to reduce interfacial resistance. Therefore, it mainly depends on which solvent the customer chooses for the electrocatalysis.

Question 2

Accepted Answer

Carbon paper HCP020N (hydrophilic type) should be placed in a desiccator and sealed at room temperature to prevent moisture absorption and performance degradation.

Question 3

Accepted Answer

Silicon oxide (1400) and silicon oxide (1600): both of these materials have a carbon coating

Question 4

Accepted Answer

The main differences between these four carbon papers are thickness, structural strength and applicable scenarios.
-GDS310 is a standard hydrophilic carbon paper with a thickness of about 310 μm, suitable for conventional fuel cell experiments;
-HCP010N, HCP020N, HCP030N respectively represent the series of increasing thickness (about 250 μm, 500 μm, 760 μm), the greater the thickness, the better the mechanical stability and compression adaptability, but the mass transfer resistance may also increase.

Therefore, which one to choose depends on the specific application requirements: space constraints, working pressure, current density and whether high resilience is required. Although the context does not provide a detailed parameter table, the above differences can reasonably be inferred from the naming convention and material use.

Question 5

Accepted Answer

It is carbon-coated

Question 6

Accepted Answer

The melting point of aluminum foil is 660 °C.

Question 7

Question 8

Accepted Answer

The main difference between "hydrophilic" and "hydrophobic" carbon paper is the surface treatment and its behavioral response to water:

-Hydrophobic carbon paper (such as HCP020P, HCP030P): after PTFE and other hydrophobic treatment, repel water, is conducive to gas diffusion and drainage, in the fuel cell to prevent the electrode is blocked by liquid water (I. e., "water flooding" phenomenon), improve battery stability and efficiency.
-Hydrophilic carbon paper (e. g. HCP020N, GDS310): No hydrophobic treatment or hydrophilic modification, can absorb and retain water, suitable for electrochemical systems that require high humidity environments or specific water management needs.

There may be no obvious difference in appearance (both black), similar specifications, but different functional positioning. The selection should be determined according to the specific application scenario: if you need to drain and breathe, choose the hydrophobic type; If you need to retain water or as an intermediate substrate, you can choose the hydrophilic type. Although the mechanism is not directly explained in the current knowledge base, the above conclusions can be reasonably inferred through the model naming rules and industry common sense.

Question 9

Accepted Answer

They are all carbon-coated.

Question 10

Accepted Answer

Graphite

Question 11

Accepted Answer

About 25%.

Question 12

Accepted Answer

Yes, it is multi-walled carbon nanotubes (MWCNT).

Question 13

Accepted Answer

The slurry formulation for the coating is different

Question 14

Accepted Answer

Carbonate-based.

Question 15

Accepted Answer

They are generally coated with carbon via chemical vapor deposition (CVD).

Question 16

Accepted Answer

Conductive carbon plus some binders

Question 17

Accepted Answer

This was provided by the original manufacturer.

Question 18

Accepted Answer

Within 200 nm.

Question 19

Accepted Answer

Conductive carbon: SP, CNT; binder: PVDF-5130

Question 20

Accepted Answer

The electrode foil is a double-sided carbon-coated aluminum foil; the other side is coated with a carbon layer

Question 21

Accepted Answer

Carbon cloth cannot be used directly as a lithium battery anode; it has no capacity. Anodes generally use graphite, hard carbon, silicon-carbon, etc.

Question 22

Accepted Answer

When preparing carbon-coated aluminum foil, the conductive additive is always prepared as a water-based slurry for coating.

Question 23

Accepted Answer

There is currently no XRD data. Normally silicon-carbon 420 shows XRD signals of both graphite and silicon.

Question 24

Accepted Answer

The customer can make the slurry themselves; we cannot do it at present.

Question 25

Accepted Answer

Common systems: PTFE (water-based, mainly for aqueous supercapacitors); PVDF (NMP, oxide cathodes); CMC SBR (carbon-based anodes); PAALi (silicon–carbon systems).

Question 26

Accepted Answer

Yes

Question 27

Accepted Answer

It's because of conductivity issues. Cathode materials themselves have poor conductivity, so they are generally coated.

Question 28

Accepted Answer

Yes, it is.

Question 29

Accepted Answer

LiFePO₄ has low conductivity. Carbon-coated aluminum foil reduces internal resistance, improves adhesion, and helps prevent electrode cracking.

Question 30

Accepted Answer

Both are coated; they are just different models of LiFePO4. D-3

Question 31

Accepted Answer

Solid-state-specific carbon-group anodes are still under development; currently there are no such products. For solid-state-specific lithium metal anodes, lithium–indium alloy is available at present.

Product Name	HCP010N	HCP020N	HCP020P	HCP030N	HCP030P	HCP120	HCP121	HCP122	HCP125	HCP130	HCP135
Water Resistance	Non-waterproof	Non-waterproof	Waterproof	Non-waterproof	Waterproof	With Filling Layer	With Filling Layer	With Filling Layer	With Filling Layer	With Filling Layer	Filling (Self-humidifying)
Thickness (mm)	0.10	0.20	0.20	0.30	0.30	0.220	0.210	0.230	0.260	0.290	0.32
Resistivity (mΩ·cm)	≤10	≤11	≤16	≤12	≤18	≤23	≤14	≤15	≤31	≤34	≤35
Porosity (%)	80	80	75	80	75	一	一	一	一	一	一
Air Resistance (mmH₂O)	<11	<11	<12	<11	<12	>20	>20	>20	>20	>20	>20
Bending Radius (cm)	>10	>10	>10	>10	>10	>10	>10	>10	>10	>10	>10

Density (g/cm³)	0.78
Dimensions (cm)	21 × 20
Water Resistance	Non-waterproof
Porosity	80%
Thickness (mm)	0.2
Bending Radius	>10 cm
Air Resistance (mmH2O)	<11
Resistivity (mΩ·cm²)	≤11

Carbon paper HCP020N (hydrophilic)

Details