About SEI Materials

About Solid Energies Inc. (SEI) - Forefront of US Solid-State Battery Innovation

Since 2017, Solid Energies Inc. (SEI), through its Solid Master Battery division and strategic partnerships, has been at the forefront of pioneering high-performance battery materials in the United States. Engineered for demanding sectors such as electric vehicles (EVs), aerospace and defense. SEI’s materials provide exceptional reliability, higher energy density, faster charge-discharge cycles, and improved thermal and structural stability compared to current lithium-ion solutions.

American Innovation in Superior Battery Materials

Our advanced portfolio of solid-state battery materials includes:

1. High-Performance Cathode Materials (Powders & Sheets)

Engineered for high voltage, exceptional capacity and superior chemical, electrochemical and structural stability, ensuring optimal performance in demanding applications.

2. Advanced Anode Materials (Powders & Sheets)

Formulated to provide high capacity and outstanding chemical, electrochemical and structural integrity, enabling longer-lasting, more efficient energy storage.

3. Solid-State Electrolyte Layers & Separators

Offering high ionic conductivity for rapid ion transport, enhanced safety robust chemical and structural stability, these components ensure greater durability and performance.

Why Choose SEI:? The SEI Advantage: Performance, Scale and Value

  • Innovation Leadership: As an industry pioneer in the development of advanced solid-state and lithium-ion battery materials, SEI doesn’t just supply products—we set the standard for next-generation battery performance.
  • From R&D to Full-Scale Production: Our seamless transition from research and development to full-scale manufacturing minimizes risks and accelerates your product's time-to-market.
  • Custom Built for Every Mission: Whether for the rigorous demands of aerospace and defense applications or the competitive landscape of commercial EVs and energy storage markets, our materials are engineered to meet the most demanding requirements.
  • Solid-State Technology Made Practical: We deliver the high performance of solid-state battery technology, while maintaining a cost-effective structure that ensures rapid integration and scalability.

With SEI’s advanced solid state battery materials, you can trust in superior performance, reliability, and innovation, no matter the application.