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Phosphate-based Solid Electrolytes
Solid Electrolytes for Lithium-ion Batteries
Phosphate Solid Electrolytes (PSEs) are a premier class of materials driving the evolution of next-generation lithium-ion batteries. Known for their robust NASICON-type (Sodium Super Ionic Conductor) crystal structure, these materials provide a stable 3D framework that facilitates rapid lithium-ion transport.
As a key component in all-solid-state batteries (ASSBs), NASICON-structured electrolytes offer significant improvements in energy density, thermal safety, and cycle life compared to conventional liquid electrolytes. Two prominent examples are LATP (Lithium Aluminum Titanium Phosphate) and LAGP (Lithium Aluminum Germanium Phosphate), which provide the following strategic benefits:
- High Ionic Conductivity: Both LATP and LAGP feature the open NASICON framework, which allows for high ionic conductivity—a critical requirement for high-rate battery performance.
- Enhanced Stability: These materials are chemically stable in ambient air and moisture, simplifying the manufacturing process compared to sulfide-based alternatives. Their structural rigidity also helps suppress dendrite growth.
- Versatile Compatibility: LATP and LAGP are compatible with a wide range of high-voltage cathode materials, making them versatile building blocks for diverse solid-state battery chemistries.
The potential benefits of PSEs in terms of safety, energy density, and performance make them a promising area of research for the future of lithium-ion batteries.
Available Phosphate Compositions
NEI produces phosphate-based solid electrolyte powders with distinctive features, such as high phase purity and crystallinity, fine particle size, and a high degree of particle size distribution (PSD) uniformity. These powder characteristics allow NEI’s phosphate-based solid electrolyte materials to be produced into suitable structures with excellent electrochemical properties.
Select a tab below to learn more about our phosphate-based solid electrolyte materials (including links to our technical and safety data sheets), explore additional electrolyte materials we offer, review ordering information, or request a quote.
Phosphate-based Electrolytes
Phosphate-based Electrolyte Materials
All of our phosphate solid electrolyte materials are offered in powder form and available in ready-to-ship quantities of 10 grams, 25 grams, 50 grams, 100 grams, 250 grams, 500 grams, and 1 kilogram. Larger bulk quantities are also available (upon request).
| Product Name | Product Description | Formula | Safety Data Sheet | Specification Sheet |
| NANOMYTE® PHE-10 | “Fine LATP” – Lithium Aluminum Titanium Phosphate (1 µm) | Li1.4Al0.4Ti1.6(PO4)3 | SDS (pdf) » | Specs (pdf) » |
| NANOMYTE® PHE-15 | “Micro LATP” – Lithium Aluminum Titanium Phosphate (2 to 3 µm) | Li1.4Al0.4Ti1.6(PO4)3 | SDS (pdf) » | Specs (pdf) » |
| NANOMYTE® PHE-20 | “LAGP” – Lithium Aluminum Germanium Phosphate (2 to 3 µm) | Li1.5Al0.5Ge1.5(PO4)3 | SDS (pdf) » | Specs (pdf) » |
Other Solid Electrolytes
Other Solid Electrolyte Materials
NEI is actively involved in producing various compositions of solid electrolyte materials. Click on a category below to learn more.
Sulfide-based Solid Electrolytes
- Choose from a variety of sulfide-compositions synthesized by NEI, such as LSPS, LPS, LPSCl, and more | Learn More »
Halide-based Solid Electrolytes (*NEW*)
- NEI is now offering Lithium Indium Chloride (Li3InCl6) powder, a halide-based solid electrolyte | Learn More »
Oxide-based Solid Electrolytes
- NEI produces a variety of oxide-based compositions, such as LLTO, LLZO, and LLZTO | Learn More »
Polymer-based Solid Electrolytes
- Our polymer electrolytes, complexed with highly conductive lithium salts, are made exclusively by NEI | Learn More »
Phosphate-based Solid Electrolytes
- NEI produces high phase purity phosphate-based solid electrolyte powders, such as LATP and LAGP | Learn More »
Solid Electrolyte Dispersion Fluids
- NEI offers a solvent-based dispersion fluid compatible with sulfide-based solid electrolyte powders | Learn More »
Sodium-ion Solid Electrolytes
- NEI offers “NATP” Sodium Aluminum Titanium Phosphate solid electrolyte powder for Na-ion batteries | Learn More »
Custom Solid Electrolyte Materials
- NEI is well positioned to reproducibly synthesize small and large quantities of custom solid electrolyte compositions | Learn More »
Ordering Information
Ordering Information
To request pricing for any of our solid electrolyte materials, please complete our quote form. Additional details about our ordering process can be found below.
All of NEI’s materials are shipped directly to you from our facilities in Somerset, NJ (USA). For customers in South Korea and Japan, please send us your request and we will put you in touch with our local representatives.
Minimum Order Quantities (MOQ)
- 10 grams (per phosphate material and specification)
Unfortunately, we are unable to provide free samples.
How to Purchase
- Request a Quote – submit a request for pricing or a formal quote by completing our quote form.
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Request a Quote
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Page updated March 24, 2026