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Phosphorus Pentasulfide (P2S5, >99.9%) Precursor Powder for Sulfide Solid-State Electrolyte Synthesis, 100 g/bottle, CBSSEPCP2S5

Phosphorus Pentasulfide (P2S5, >99.9%) Precursor Powder for Sulfide Solid-State Electrolyte Synthesis, 100 g/bottle, CBSSEPCP2S5

$89.00 USD
In Stock SKU: CBSSEPCP2S5
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Phosphorus pentasulfide (P2S5) is the primary network-forming precursor used alongside Li2S to synthesize sulfide-based solid-state electrolytes (SSEs). It provides the structural backbone (PS4^{3-} tetrahedra) responsible for creating the open framework that allows rapid lithium-ion transport. Managing P2S5 requires precise control because its chemical stability, purity, and particle morphology directly dictate the ionic conductivity and electrochemical stability window of the resulting electrolyte.

In sulfide systems, P2S5 reacts with Li2S to modify the sulfide network. The ratio between the modifier (Li2S) and the network former (P2S5) determines the local structural units formed: (1) High Li2S Ratios (e.g., 3Li2S P2S5 or Li3PS4): Completely breaks down the P2S5 cage to form isolated, highly symmetrical ortho-thiophosphate [PS4]^{3-} tetrahedra. This structure provides optimal pathways for Li+ hopping and minimizes electronic conductivity. (2) Argyrodites (Li6PS5X): P2S5 provides the central [PS_4]^{3-} units, which are surrounded by free sulfide (S^{2-}) and halide (X-) ions, achieving ionic conductivities exceeding 10^{-3} S cm-1. (3) Meta- and Pyro-thiophosphates: Lower ratios of Li2S yield shared tetrahedra frameworks (like [P2S7]^{4-} or [P2S6]^{4-}), which generally exhibit lower ionic conductivities but can offer unique mechanical flexibility.

Part Number

CBSSEPCP2S5 (C-BSSE-PC-P2S5)

Purity

>99.9%

Molecular Weight

222.3 g/mol

Particle Size

~30 um

Melt Point

280-284 °C (lit.)

Density

2.09 g/mL at 25 °C (lit.)

Water Level

<50 ppm

 

Notes: (1) Please store the P2S5 powder in a glovebox due to its air/humidity sensitivity.

References

  1. Z. Warren, et al. Solution-Based Suspension Synthesis of Li2S–P2S5 Glass-Ceramic Systems as Solid-State Electrolytes: A Brief Review of Current Research, ACS Omega 2024, 9, 29, 31228–31236
  2. R. Maniwa, et al. Synthesis of sulfide solid electrolytes from Li2S and P2S5 in anisole, J. Mater. Chem. A, 2021, 9, 400-405 

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