The Tech

We’re not tweaking yesterday’s battery—we’re building a fundamentally better one.

ION was founded by experts across materials science, manufacturing, defense, and energy to bring solid-state batteries out of the lab and into the market. U.S.-engineered and designed for scalable production, our technology is powering the future—without the tradeoffs of traditional lithium-ion or first-gen solid-state systems.

The Tech

We’re not tweaking yesterday’s battery—we’re building a fundamentally better one.

ION was founded by experts across materials science, manufacturing, defense, and energy to bring solid-state batteries out of the lab and into the market. U.S.-engineered and designed for scalable production, our technology is powering the future—without the tradeoffs of traditional lithium-ion or first-gen solid-state systems.

Our Secret Sauce: the Bilayer Ceramic Electrolyte

ION’s patented 3D ceramic electrolyte is nonflammable and uses easy to source materials—enabling safe, high-performance lithium-metal batteries. Its unique structure allows for orders of magnitude increased contact area with lithium and enables cells that don’t require pressure or compression to function.

Anodeless Manufacturing

Our anodeless design eliminates the need for a pre-formed anode, allowing lithium to plate directly onto the current collector during operation. This simplifies manufacturing, reduces material costs, and improves energy density and safety both at the factory and in your pocket.

Broad Cathode Compatibility

ION’s platform is compatible with a wide range of cathode chemistries, from traditional layered oxides to emerging cobalt- and nickel-free materials. This flexibility allows customers to tailor performance, cost, and sustainability to their specific application needs.

Scalable Manufacturing

Our cells are built using scalable stacking process that results in high-performance pouch or prismatic cells. This approach supports high throughput, uniformity, and compatibility with existing battery manufacturing infrastructure.

Easy Integration

ION’s batteries are packaged in a standard pouch cell format today, making them easy to integrate into existing systems and designs. They are also the only solid state battery company that can use prismatic packaging. The lack of swelling and compression requirements further simplifies mechanical and thermal integration.

More Power, Less Space

    • Lithium-metal anode and thin ceramic electrolyte enable compact, lightweight cells
    • More energy per volume and weight—ideal for EVs, aerospace, and portable devices
    • Supports longer runtimes and extended range without increasing pack size

    Built to Last

      • Ideal for applications requiring long service life and low maintenance
      • Demonstrated benchmark performance
        >1,000 Cycles commercially relevant footprint
        >2,000 Cycles R&D footprint
      • Uniquely able to maintain performance in a wider temperature operating range

      Charge Fast, Stay Cool

        • Achieved ARPA-E and DOE VTO Fast-Charge goals
        • Demonstrated 8-minute fast charge at 60°C where Li-ion cannot safely operate

        No Swell, No Stress

          • Bilayer ceramic structure prevents volume change during cycling (no more accordion cells)
          • No need for swell allowances
             > Eliminated mechanisms that cause swell in lithium-ion pouch cells
          • Enables thinner, more compact system designs

          Freedom from Force

            • Cells operate without external pressure or mechanical clamping
            • Eliminates bulky compression systems used in other solid-state designs
            • Simplifies mechanical design and improves manufacturability

            Designed to Drop In

              • Compatible with conventional pouch cell formats and assembly lines
              • No complex thermal management or pressure systems required
              • Accelerates product development and reduces system-level complexity

              Secure by Design

                • No graphite; can be designed without nickel or cobalt
                • Avoids high-risk regions and ethically sensitive materials
                • Supports long-term availability, traceability, and cost stability

                Safety at the Core

                  • Nonflammable ceramic electrolyte eliminates risk of fire or explosion
                  • Chemically stable across a wide temperature range
                  • Safe for use in consumer, industrial, and defense environments