LPS (Li7P3S11) Sulfide Solid‑State Electrolyte Powder is a sulfide solid‑state electrolyte powder with high lithium‑ion conductivity. It exhibits good cold‑pressing performance to form dense electrolyte pellets, and can be mixed with cathode materials to prepare composite catholytes for coin‑cell all‑solid‑state lithium‑metal battery research. The material is highly moisture‑sensitive and must be handled inside a glovebox.
- High lithium‑ion conductivity
- good cold‑pressing property
- formable into dense pellets
- compatible for composite catholyte preparation
- for coin‑cell all‑solid‑state lithium‑metal battery R&D
- moisture‑sensitive, glove‑box operation required
Dense electrolyte pellet preparation; composite catholyte fabrication; coin‑cell all‑solid‑state lithium‑metal battery assembly; solid‑state battery fundamental research.
Argon‑filled vacuum‑sealed package; store sealed in cool place; highly hydrolysable, releases H₂S; open and sample only in glovebox; use promptly after opening, avoid air exposure.
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This material is highly moisture-sensitive and undergoes hydrolysis upon exposure to ambient air, releasing toxic hydrogen sulfide gas. Storage requires argon-filled vacuum-sealed packaging in a cool environment, and all handling must be performed inside an inert atmosphere glovebox.
- Moisture Sensitivity: The powder rapidly degrades upon contact with atmospheric moisture, forming hydrogen sulfide gas.
- Toxic Gas Release: Hydrolysis produces H2S, a toxic and flammable gas that requires proper ventilation and monitoring.
- Glovebox Requirement: All opening, sampling, and processing must be conducted inside an argon-filled glovebox with oxygen and moisture levels below 0.1 ppm.
- Prompt Use After Opening: The material must be used immediately after opening the vacuum-sealed package to prevent moisture absorption.
- Avoid Air Exposure: Any exposure to ambient air will cause degradation and loss of ionic conductivity.
This procedure describes the safe handling of the moisture-sensitive powder and the preparation of dense electrolyte pellets via cold pressing. All operations must be performed inside an argon-filled glovebox to prevent hydrolysis and H2S release.
Required Equipment: Argon-filled glovebox, Die set, Hydraulic press
- Transfer Package to Glovebox
Transfer the sealed argon-filled vacuum package into an argon-filled glovebox before opening. - Open Package
Open the vacuum-sealed package only inside the glovebox to avoid moisture exposure. - Weigh Desired Amount
Weigh the required amount of LPS powder using a laboratory balance placed inside the glovebox. - Cold Press Pellet
Load the powder into a die set and apply uniaxial pressure using a hydraulic press to form a dense electrolyte pellet. - Seal and Store Pellet
Seal the prepared pellet in an argon-filled container and store in a cool, dry environment until use.
What particle size and cold-pressing properties does Li7P3S11 sulfide electrolyte offer for pellet fabrication?
Li7P3S11 powder is available with a particle size of 5–10 µm and exhibits good cold-pressing performance, enabling formation of dense electrolyte pellets for solid-state battery research. The 1.98 g/cm³ theoretical density supports efficient pellet densification under ambient-temperature pressing.
Can Li7P3S11 be mixed with cathode materials to prepare composite catholytes?
Yes, Li7P3S11 is designed for mixing with cathode materials to fabricate composite catholytes. This compatibility allows direct integration into coin-cell all-solid-state lithium-metal battery architectures, combining high ionic conductivity (>2.0 mS/cm at 27°C) with cathode active material.
What handling and storage precautions are required for Li7P3S11 due to moisture sensitivity?
Li7P3S11 is highly moisture-sensitive and hydrolyses rapidly in air, releasing toxic H₂S gas. It must be opened, sampled and handled exclusively inside an argon-filled glovebox. The product is supplied in an argon-filled vacuum-sealed package and should be stored sealed in a cool place; use promptly after opening to avoid air exposure.
LPS (Li7P3S11) sulfide solid-state electrolyte powder delivers >2.0 mS/cm ionic conductivity at 27°C and is formable into dense pellets via cold pressing, making it suitable for coin-cell all-solid-state lithium-metal battery research. However, its high moisture sensitivity necessitates glovebox handling and argon-sealed storage to avoid hydrolysis and H₂S release.
Positive
- High lithium-ion conductivity: Ionic conductivity >2.0 mS/cm at 27°C enables efficient ion transport, critical for solid-state battery performance.
- Excellent cold-pressing behavior: Forms dense electrolyte pellets without high-temperature sintering, simplifying pellet fabrication for battery assembly.
Trade-offs
- Severe moisture sensitivity: Highly hydrolysable material that releases H₂S upon air exposure; requires strict glovebox handling and argon-filled vacuum-sealed storage.
- Limited particle size distribution: Specified particle size of 5–10 um may influence composite catholyte homogeneity and interfacial contact, requiring careful mixing optimization.
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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.
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