NFPP Sodium Iron Phosphate Pyrophosphate Single-Sided Cathode Sheet, 20 mg/cm2
Sodium iron phosphate pyrophosphate, NFPP, is a polyanionic cathode material for sodium-ion batteries. This ready-to-use sheet is supplied for laboratory cell assembly and material evaluation in the listed Single-Sided, 20 mg/cm2, 120 x 120 mm, 5-Pack configuration.
Material Characteristics
- Iron phosphate pyrophosphate composition
- Cobalt-free sodium-ion cathode material
- Polyanionic cathode supplied as a coated research sheet
Typical Research Uses
Use for sodium-ion cathode comparison, hard-carbon pairing, electrolyte studies, and sodium-ion cell assembly.
How to Read This Configuration
Areal loading, coating side, active-material ratio, collector, and wet or dry process should be read together when selecting an NFPP sheet.
- Areal loading: 20 mg/cm2. Use this value as the coating-mass basis when comparing electrode configurations.
- Active material ratio: 94.50% is the listed active-material fraction of the coating formulation. The actual active mass still depends on the punched electrode mass.
- Capacity basis: 95 mAh/g is retained as an active-material reference value, not a guaranteed cell-level result.
| Product Specification | Value / Description |
|---|---|
| Product Type | Single-Sided Cathode Sheet |
| Active Material System | Sodium Iron Phosphate Pyrophosphate (NFPP) |
| Battery System | Sodium-Ion |
| Electrode Role | Cathode |
| Coating Side | Single-Sided |
| Areal Loading | 20 mg/cm2 |
| Coating Area / Sheet Size | 120 x 120 mm |
| Active Material Ratio | 94.50% |
| Specific Capacity | 95 mAh/g, based on active material mass |
| Pack Size | 5-Pack |
| SKU | AF-BM-S-CNFPP-AS20-5P0 |
Drying and Handling
Before cell assembly, dry the electrode sheet at 90-100 C for 12-24 hours. Use a clean, dry handling environment after drying.
Avoid bending, scratching, or contaminating the coated surface during cutting, punching, transfer, and stacking.
| Research Need | Related Atomfair Category | Best For |
|---|---|---|
| Full-cell electrode pairing | Sodium-Ion Anode Electrode Sheets | Selecting a complementary sodium-ion anode sheet for cell assembly |
| Custom configuration | Custom Battery Electrode Coating Service | Alternative loading, dimensions, current collector, or coating configuration |
This document outlines the critical handling and drying constraints for the Atomfair NFPP-S02 electrode sheet to ensure material integrity and reliable electrochemical testing. Adherence to the specified vacuum baking protocol is mandatory to prevent ambient phase contamination and structural degradation.
- Vacuum Baking Protocol: Bake the electrode sheet under vacuum at 100°C for 12 hours before thermal validation to prevent ambient phase contamination or structural degradation.
What is the active material ratio and specific capacity of the Atomfair NFPP-S02 sodium iron phosphate pyrophosphate electrode sheet?
The NFPP-S02 electrode sheet features an active material ratio of 94.50% and a specific capacity of 95 mAh/g. These parameters are specified in the product's technical specifications, ensuring high material purity and reliable electrochemical performance for sodium-ion battery R&D.
What vacuum baking conditions are required for the NFPP-S02 electrode sheet before use?
The recommended baking protocol is 12 hours under vacuum at 100°C. This step is critical to prevent ambient phase contamination or structural degradation prior to thermal validation, as stated in the product's operational notice.
What type of current collector substrate is used in the Atomfair NFPP-S02 electrode sheet?
The electrode sheet uses a carbon-coated aluminum foil substrate with a current collector density of 3.3 mg/cm² and a total substrate thickness of 12 + 0.5 + 0.5 μm. This carbon coating is designed to maximize electrical contact and optimize boundary interfacial dynamics in half-cell testing.
Atomfair NFPP-S02 electrode sheet provides a single-side coated sodium iron phosphate pyrophosphate cathode with 95 mAh/g capacity and 94.5% active material ratio on carbon-coated aluminum foil, designed for sodium-ion battery R&D with precise wet coating and a mandatory 12-hour vacuum baking step at 100°C.
Positive
- High active material ratio: The 94.5% active material ratio ensures a homogeneous NFPP distribution across the electrode, critical for reliable half-cell testing and baseline performance comparisons.
- Carbon-coated aluminum foil substrate: The carbon-coated aluminum current collector maximizes electrical contact and optimizes interfacial dynamics, enhancing measurement accuracy in electrochemical evaluations.
Trade-offs
- Mandatory vacuum baking protocol: The electrode sheets require a 12-hour vacuum bake at 100°C prior to use to prevent ambient phase contamination and structural degradation, adding preprocessing time and infrastructure demands.
- Single-sided coating limitation: The single-side coating design restricts areal loading to one side, which may require additional lamination or assembly steps for full-cell configurations that typically use double-sided electrodes.
Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.
To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.
Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD excl. heavy equipment). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).
