High Performance Battery Materials
Cathodes, Anodes, and Solid Electrolyte Materials
Polymer-Ceramic Composite Electrolyte
NANOMYTE® SE-50
NANOMYTE® SE-50 is a hybrid polymer-ceramic solid electrolyte engineered for advanced solid-state lithium batteries. This material directly addresses two critical barriers to high-performance solid-state battery systems: the inherently low ionic conductivity common to many solid electrolytes and the significant interfacial impedance at the electrode-electrolyte interface. SE-50 is specifically designed to mitigate these challenges, exhibiting high Li+ ionic conductivity and achieving low interfacial resistance between the active electrode materials and the solid electrolyte. These superior transport and interfacial properties are attributed to the material’s unique elastomeric and self-adhesive characteristics, which facilitate intimate contact. Furthermore, NANOMYTE® SE-50 demonstrates excellent electrochemical stability, enabling its compatibility with high-voltage cathode materials, thus expanding the operational voltage window and enhancing energy density.
Features & Benefits
Product Features & Benefits
NANOMYTE® SE-50 is used as the separator and is added to the electrode as well. The material has been engineered such that it provides for low interfacial resistance between the electrode and electrolyte. The standard form of SE-50 is a polymer-ceramic composite, but it can also be supplied without the ceramic, with similar electrochemical properties.
- Compatible with Lithium metal
- Excellent electrochemical stability
- Exceptionally low interfacial resistance
- Stable up to 5.2V (at RT)
- High ionic conductivity
- Thermally stable up to 150 °C
NEI offers SE-50 in lots of 10g, 25g, 50g, & 100g quantities (or larger) and is available in three different forms:
- NANOMYTE® SE-50 is a bulk solid composite
- NANOMYTE® SE-50A is a 30% SE-50 solution in Acetonitrile
- NANOMYTE® SE-50N is a 30% SE-50 solution in NMP
Note: All weights refer to the solids content
Specifications
Product Specifications
Physical Characteristics:
- Components: Polymer – Composite Material with Lithium Salt
- Form: Solid
- Color: Off-white
- Crystallinity: Amorphous
- Solubility: Common polar organic solvent
Technical Data:
- Ionic Conductivity: 2 – 4 x 10-4 S/cm (@ RT)
- Crystallinity: Amorphous
- Glass Transition Temperature: < -40°C (DSC)
- Capacity at 0.04C (NMC): ≥ 190 mAh/g (with NMC811)
- Capacity at 0.04C (LFP): ≥ 150 mAh/g (with LiFePO4)
For additional specifications and processing instructions, view / download our SE-50 Specification Sheet (pdf) »
Voltage Stability
Voltage Stability
Safety Information
Product Safety Information
NANOMYTE® SE-50 is composed of a proprietary blend of polymer and ceramic materials, with a Lithium Salt added. The material can be handled in a dry room for short periods of time, but it is important that the hygroscopic material not be exposed to moisture at any time.
Precautions for Safe Handling: Material is hygroscopic – protect from moisture and humidity. Handle in a controlled environment, preferably in a glovebox under inert gas. Material may also be handled in a dry room for a few hours at a time. Appropriate personal protective equipment should be used at all times. Avoid contact with eyes, skin, and clothing. Provide appropriate exhaust ventilation and avoid inhalation of dust, vapors, or mist. If product is dispersed in solvent, keep away from sources of ignition – no smoking. Take measures to prevent the buildup of electrostatic charge. For additional precautions, see Safety Data Sheets.
Conditions for Safe Storage: Best stored under inert gas. Keep container tightly sealed, in a cool, dry, and well-ventilated place. This material is moisture sensitive. Protect from humidity and keep away from water. Keep away from oxidizing agents. Store in a locked cabinet or with access restricted to technical experts or their assistants. If product is dispersed in solvent, be sure that opened containers are carefully resealed and kept upright to prevent leakage.
For complete information on the safe use of this material, please refer to the Safety Data Sheet.
Request Quote
Quote Request Form
NANOMYTE® SE-50 is made and shipped directly from NEI and available for purchase from 10 grams to kilogram quantities. To submit a request for pricing or a formal quote, complete the form below (* – required fields) and someone will be in touch with you soon. NEI accepts purchase orders (check, wire, or bank transfer) and credit cards.
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Page updated June 4, 2025