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    • SEI Materials
      • About SEI Materials
      • Anode
      • Cathode
      • Separator
    • Solid State Battery Cells
      • About Battery Cells
      • 3.6V 13Ah
      • 3.6V 28Ah
      • 3.6V 35Ah
      • 4V 32Ah
    • Solid State Battery Packs
      • About Battery Packs
      • Solid State Drone Battery
      • 22V 30000mah
      • 22V 40000mah
      • 24V 32000mAh
      • 44V 40000mah
      • 48V 32000mah
    • Company
      • About Us
      • Contact
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      • Technical Documents
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    MSDS

    Separator Sheets

    SEI's Li-ion conductive separator is a drop-in replacement for conventional separators that eliminates liquid electrolyte from the separator layer. By transporting Li-ions through a solid-state electrolyte coating layer, it mitigates thermal runaway, reduces cell resistance, and prevents irreversible capacity loss—delivering superior energy output and enhanced safety

    • Lithium-ion conductive separator

      Lithium-ion conductive separator

      Lithium-ion conductive separator

      Regular price From $499.99 USD
      Regular price Sale price From $499.99 USD

    Custom Separators

    SEI also specializes in custom fabrication of separators materials (powders and sheets), engineered for safety, high capacity, long cycle life, fast charging, and reliable low-temperature performance.

    • Custom Li-ion Separator

      Custom Li-ion Separator

      Custom Li-ion Separator

      Regular price From $499.99 USD
      Regular price Sale price From $499.99 USD

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