Natural Silica Powder for Waterborne Battery Electrode Coating Trials
Natural crystalline silica powder for waterborne electrode-coating trials, supporting slurry rheology, filtration, edge-definition and dry-film uniformity screening without claiming battery-capacity performance.
Specifications
- Grade
- QG300, QG400, QG600, SP10, SP5, SP2
- SiO₂ Content
- 99.3–99.7%
- Fe₂O₃
- 0.01%
- Al₂O₃
- 0.015%
- K₂O
- 0.005%
- Moisture
- <0.1% all grades
- Loss on ignition (%)
- 0.15
- Mohs hardness
- 7 all grades
- Na⁺
- <10 ppm
- Cl⁻
- <10 ppm all grades
- EC (µS/cm)
- <5
- pH
- 5.7–7.5 all grades
- Particle size (unit not stated)
- QG300 21–24; QG400 17–20; QG600 15–17; SP10 9–12; SP5 3–5; SP2 1.5–2.5
A formulation-screening grade for teams moving waterborne electrode coating from lab slurry to measurable dry-film uniformity.
Product Overview
Natural crystalline silica powder for waterborne electrode-coating trials, helping formulators screen slurry rheology, edge definition and dry-film uniformity without claiming battery-capacity performance.
Material Identity and Grade Information
This product is natural quartz-derived crystalline silica powder. It is a formulation aid for controlled coating trials, not an active electrochemical material; keep it distinct from hydrophobic treated silica, precipitated silica and fumed silica.
Properties / Specification
| Property | Guidance |
|---|---|
| Material identity | Natural crystalline silica powder; confirm current material declaration. |
| SiO₂ | Crystalline silica reference range 99.3–99.7%; confirm by current COA. |
| Particle size | Grade-specific μm range; select against coat weight, filtration and surface-finish targets. |
| Moisture | Grade-specific; confirm before waterborne dispersion. |
| Rheology | No universal viscosity claim; measure at the customer’s solids, binder and dispersant levels. |
| Electrochemical boundary | No battery-capacity or cycle-life claim; subject to customer electrode trial. |
Values marked Grade-specific must be confirmed by the current TDS/COA. Use customer trial data for final acceptance.
Applications
Waterborne cathode/anode coating screens
Compare settling, shear response and coating-window behavior while holding active material and binder constant.
Slot-die or comma-coater edge definition
Use coupon runs to review edge bead, streaking and dry-film thickness consistency.
Low-VOC process development
Support material-side screening where waterborne processing and repeatable filtration are primary objectives.
Grade Selection / Engineering Boundaries
Do not infer electrical or cell-life performance from mineral filler data. Confirm ash, trace chemistry, filtration residue and interaction with the active material before cell assembly.
Production, Testing and Quality Documents
- Confirm PSD, moisture, chemistry and packaging from the current TDS/COA.
- Run dispersion and rheology checks at the customer’s solids and binder level.
- Evaluate coated-film thickness, adhesion and drying profile before electrochemical testing.
Related Changtong Products
- Crystalline silica powder for tile adhesives and grouts
- Hydrophobic silica for EV battery encapsulation
- Fused silica powder for EV power-module potting
- Request a Quote
FAQ
Is this an active battery ingredient?
No. It is a mineral powder for formulation and coating-process screening; active-material compatibility must be tested by the customer.
Which trial data is most useful?
Record slurry viscosity, settling, filter residue, coat weight, dry-film uniformity and adhesion before cell-level tests.
Request a Quote
Please share your country, Phone/WhatsApp, target application, particle-size range, estimated volume and current TDS/COA requirements.
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