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Solid Polymer Electrolyte

NANOMYTE® H-polymer is a solid polymer electrolyte specifically designed for lithium-ion battery applications. As a 100% solid material, H-polymer combines the benefits of high room temperature ionic conductivity with the good mechanical properties of a solid polymer.

H-polymer is a PEO-based copolymer with PEO segments in the polymer backbone. PEO has been intensively explored as a solid polymer electrolyte. Although the PEO / lithium salt complex has good lithium-ion conductivity above 60 °C, the room temperature ionic conductivity is typically low due to the crystallization of PEO chains. NANOMYTE® H-polymer overcomes this drawback by having an amorphous structure and a much improved ionic conductivity of around four orders of magnitude higher (~ 5 x 10-5 S/cm) than that of pure PEO.

NANOMYTE® H-Polymer can be used as a separator, by itself, or in combination with an inorganic solid electrolyte. It can also be used as a Li-ion conductive binder to reduce the interfacial resistance between cathode or anode particles.

XRD patterns of H-polymer and PEO

Features & Benefits

  • Conducts lithium ions at room temp
  • Forms composite membranes with inorganic solid electrolyte particles
  • Flexible membrane can be cast


  • Ionic Conductivity: 5 x 10-5 S/cm
  • Crystallinity: Amorphous
  • Glass Transition Temperature: < 0 °C

For additional specifications, please refer to the Specification Sheet (pdf) »

Storage & Handling

Precautions for Safe Handling
Appropriate personal protective equipment should be used at all times. Avoid contact with eyes and skin. Toxic if swallowed or contact with skin. Provide good ventilation or extraction, and avoid breathing vapors. Avoid formation of dust.

Conditions for Safe Storage
Keep container tightly closed in a dry and well-ventilated place. Storage class (TRGS 510): Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects.

For complete safety information, refer to the Safety Data Sheet (pdf) »

Available for Purchase

NANOMYTE® H-Polymer is made and shipped directly from NEI and available for purchase in lots of 10g, 25g, 50g, 100g, or larger.