Fluorine‑Doped LPSCl (Li5.4PS4.4Cl1.4F0.2) Sulfide Solid‑State Electrolyte Powder sulfide electrolyte achieves a high ionic conductivity up to 3.25 mS/cm. Equipped with an inherent self-healing lithium fluoride (LiF) nano-interphase, the material delivers superior water resistance and excellent interfacial stability for industrial all-solid-state battery applications.
It is fully compatible with lithium metal anodes and optimized for low stack-pressure processes. It eliminates the need for nano-coating on cathode powder, greatly simplifying cathode fabrication. The robust self-healing LiF interface withstands high-speed mixing without structural damage, removing the requirement for precise particle size grading and closest-packing matching. A stable nanoscale LiF layer is naturally formed on the lithium metal anode. Adopting this single electrolyte effectively reduces cell cost, simplifies manufacturing procedures, improves energy density and enables ultra-long cycle life exceeding 3000 cycles for mass production.
- Core‑shell fluorinated sulfide electrolyte
- ionic conductivity up to 3.25 mS/cm
- inherent self‑healing LiF nano‑interphase
- enhanced moisture resistance
- low stack‑pressure compatible
- lithium‑metal anode compatible
- no cathode nano‑coating required
- tolerant to high‑speed mixing
- no particle packing‑ratio matching
- streamlines electrode fabrication
- single‑component for low‑cost mass production
- >3000‑cycle stability
Lithium‑metal‑based all‑solid‑state battery R&D and pilot‑scale production; Composite cathode fabrication for ASSBs; Pouch‑cell and pellet‑type solid‑state cell prototyping; High‑energy‑density power battery systems; Academic & industrial solid‑state battery material research.
Vacuum‑sealed under inert gas; cool‑dry sealed storage; moisture‑sensitive; open and handle inside glove‑box; 12‑month shelf‑life for unopened package
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Store vacuum-sealed under inert gas in a cool, dry environment. The material is moisture-sensitive and must be opened and handled exclusively inside a glovebox.
- Moisture Sensitivity: The material is moisture-sensitive and must be opened and handled only inside a glovebox with an inert atmosphere.
- Storage Conditions: Store the vacuum-sealed package in a cool, dry environment to preserve material integrity.
- Shelf Life: The unopened package has a shelf life of 12 months under recommended storage conditions.
- Handling Requirement: Always handle the powder under an inert gas atmosphere to prevent moisture-induced degradation.
Does the fluorine doping in LPSCl compromise ionic conductivity while improving moisture resistance?
No, the fluorine-doped LPSCl (Li5.4PS4.4Cl1.4F0.2) achieves a high ionic conductivity of 3.25 mS/cm at 25°C while simultaneously providing enhanced moisture resistance through an inherent self-healing lithium fluoride (LiF) nano-interphase. The conductivity is competitive with undoped argyrodite LPSCl, and the LiF layer does not degrade ionic transport.
Can this fluorine-doped LPSCl electrolyte be used directly with standard cathode materials without additional nano-coating?
Yes, the material eliminates the need for nano-coating on cathode powder, greatly simplifying cathode fabrication. The self-healing LiF interface withstands high-speed mixing without structural damage and removes the requirement for precise particle size grading or closest-packing matching, making it compatible with conventional cathode processing in all-solid-state batteries.
What are the specific storage and handling requirements for fluorine-doped LPSCl sulfide electrolyte to maintain its performance?
The material must be stored vacuum-sealed under inert gas in a cool, dry environment and is moisture-sensitive. All handling and opening must be performed inside a glove-box under inert atmosphere. Unopened packages have a 12-month shelf life; proper storage preserves the LiF nano-interphase and ionic conductivity of 3.25 mS/cm.
Fluorine-doped LPSCl (Li5.4PS4.4Cl1.4F0.2) sulfide solid-state electrolyte powder achieves ionic conductivity up to 3.25 mS/cm at 25°C and features an inherent self-healing LiF nano-interphase that provides enhanced moisture resistance and interfacial stability, eliminating the need for cathode nano-coating and enabling compatibility with lithium metal anodes under low stack-pressure conditions.
Positive
- High ionic conductivity: Achieves ionic conductivity up to 3.25 mS/cm at 25°C, enabling efficient ion transport in all-solid-state batteries.
- Self-healing LiF nano-interphase: Inherent self-healing LiF layer provides enhanced moisture resistance and interfacial stability, eliminates need for cathode nano-coating, and is compatible with lithium metal anodes and low stack-pressure processes.
Trade-offs
- Moisture-sensitive handling required: Material is moisture-sensitive; must be stored vacuum-sealed under inert gas, kept in cool-dry conditions, and handled inside a glove-box to prevent degradation.
- Limited unopened shelf-life: Unopened package has a 12-month shelf-life; opened material must be used promptly under inert atmosphere to maintain performance.
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