
NPSCl (Na₂.₉PS₃.₉Cl₀.₁) -Sulfide Solid Electrolyte Powder
SKU: XN-NPSCL
NPSCl Cl-Doped Sodium-Ion Sulfide Solid-State Electrolyte (Na₂.₉PS₃.₉Cl₀.₁) — chlorine-doped Na₃PS₄ framework with enhanced Na⁺ transport. 0.15 ± 0.05 mS/cm at 25 °C, sub-micron particle size (~500 nm). Engineered for all-solid-state sodium-ion battery research and low-cost grid storage applications.
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Name: NPSCl Cl-Doped Sodium-Ion Sulfide Solid-State Electrolyte (Na₂.₉PS₃.₉Cl₀.₁)
Material Form: Powder
Product Code: XN-NPSCL
Description:
NPSCl (Na₂.₉PS₃.₉Cl₀.₁) is a chlorine-doped sodium-ion sulfide solid-state electrolyte derived from the Na₃PS₄ framework. The introduction of Cl⁻ at the S-site and the matched Na vacancy create additional Na⁺ migration pathways, enhancing room-temperature ionic conductivity beyond pure Na₃PS₄. As a result, NPSCl is a strong candidate for all-solid-state sodium-ion batteries (Na-ASSBs) targeting low-cost, large-scale grid energy storage applications.
Application:
This material serves as a sodium-ion conducting solid electrolyte for all-solid-state sodium-ion batteries (Na-ASSBs), Na-S battery research, low-cost grid storage prototypes, and academic studies of fast Na⁺ ion transport in sulfide systems. Furthermore, it can be paired with sulfide or oxide cathodes in composite electrode formulations.
Specifications:
| Property | Value |
|---|---|
| Product Type | Sodium-Ion Sulfide Solid Electrolyte |
| Chemical Formula | Na₂.₉PS₃.₉Cl₀.₁ |
| Ionic Conductivity | 0.15 ± 0.05 mS/cm @ 25 °C |
| Average Particle Size | ~500 nm |
| Crystal Structure | Cubic Na₃PS₄-type framework with Cl-doping |
| Form | Powder |
| Storage | Inert atmosphere (Ar / N₂), sealed, moisture-excluded |
Values measured by Xnergy. Typical values for reference; not guaranteed unless otherwise specified.
XRD Phase Analysis:


XRD patterns of NPSCl powder confirming the cubic Na₃PS₄-type crystal structure with Cl-doping.
Characteristics:
Cl-doping enhances Na⁺ transport
Substituting Cl⁻ at the S-site creates Na vacancies that open additional Na⁺ migration channels. As a result, the room-temperature conductivity (~0.15 mS/cm) exceeds undoped Na₃PS₄ at the same temperature.
Sub-micron particle size
Average particle size of ~500 nm provides a high surface area for intimate cathode interface contact in composite electrode formulations. Therefore, this supports lower interfacial resistance and improved active material utilization.
Cubic Na₃PS₄-type framework
X-ray diffraction confirms the target cubic Na₃PS₄ framework with Cl-substitution. Consequently, the material delivers reproducible electrochemical performance and predictable behavior in cell architectures.
Low-cost sodium chemistry
Sodium-based electrolytes leverage abundant raw materials (Na vs Li). Therefore, NPSCl is well-suited for cost-sensitive, large-scale stationary storage applications where Li-ion economics are unfavorable.
Packaging & Storage:
The material ships vacuum-sealed under inert atmosphere in moisture-barrier aluminum-laminated bags. Therefore, customers should store sealed in an Ar or N₂ glovebox, protected from moisture. Because NPSCl is moisture-sensitive — sulfide electrolytes hydrolyze on contact with water to release H₂S — handle exclusively in a controlled dry environment with dew point < –40 °C. Reseal promptly after opening.
Safety:
For research and industrial use only. Hydrolysis of sulfide electrolytes releases hydrogen sulfide (H₂S), a toxic gas. Handle exclusively in a glovebox or well-ventilated dry environment. Wear full PPE (chemical-resistant gloves, lab coat, safety goggles, respirator if outside glovebox). Refer to SDS for complete safety information.
Note: Values listed above are typical and for reference only. Performance may vary depending on cell architecture, cathode selection, and test protocol. Compare with our other sodium-ion solid electrolytes: W-Doped NPS (Na₃.₁P₀.₉W₀.₁S₄) at 4.1 mS/cm, Na₃PS₄ Sodium-Ion Sulfide Electrolyte, MgO-Doped β″-Al₂O₃, and NASICON NZSPO.




