The Global Solid Ion Conductor Material Market was valued at US$ 24.9 Million in 2025 and is projected to reach US$ 54.5 Million by 2034, growing at a Compound Annual Growth Rate (CAGR) of 12.1% during the forecast period. This robust growth is fueled by the global push towards electrification, the escalating demand for safer and higher-energy-density batteries, and the accelerating adoption of solid-state batteries across consumer electronics, electric vehicles, and grid storage sectors.

As industries transition away from flammable liquid electrolytes towards more stable and efficient solid-state solutions, the companies developing advanced solid ion conductor materials are at the forefront of this energy revolution. In this blog, we profile the Top 10 Companies in the Solid Ion Conductor Material Industry—a mix of established chemical giants, specialized materials suppliers, and innovative battery technology pioneers shaping the future of energy storage.

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🔟 1. Heraeus

Headquarters: Hanau, Germany
Key Offering: Specialty Glass Powders, Ceramic Components for Solid-State Batteries

Heraeus is a leading global technology group with a strong presence in advanced materials. Their portfolio includes high-purity specialty glass and ceramic precursors that are critical for developing sulfide and oxide-based solid electrolytes, serving major battery manufacturers and automotive OEMs.

Innovation Focus:

• Development of high-conductivity solid electrolyte materials

• Strategic partnerships with automotive and electronics industries

• Investment in scalable manufacturing processes for solid-state battery components

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9️⃣ 2. Nippon Electric Glass Co., Ltd.

Headquarters: Otsu, Shiga, Japan
Key Offering: Thin Glass Substrates, Solid Electrolyte Glass-Ceramics

Nippon Electric Glass (NEG) is a key supplier of glass materials for electronic applications, extending its expertise to solid ion conductors. The company is developing innovative glass-ceramic materials that offer high ionic conductivity and excellent stability for use in next-generation solid-state batteries.

Innovation Focus:

• Advanced glass-ceramic solid electrolytes

• Focus on improving interfacial stability with electrode materials

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8️⃣ 3. LG Chem

Headquarters: Seoul, South Korea
Key Offering: Polymer & Ceramic Solid Electrolytes, Solid-State Battery Development

LG Chem, a global leader in battery technology, is heavily invested in solid-state battery R&D. The company is developing both polymer and ceramic-based solid ion conductor materials, aiming to commercialize solid-state batteries for electric vehicles and high-performance electronics.

Innovation Focus:

• Integrated approach from material development to battery cell production

• Targeting EV battery applications with enhanced safety and energy density

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7️⃣ 4. Sumitomo Chemical Co., Ltd.

Headquarters: Tokyo, Japan
Key Offering: Polymer Electrolytes, Advanced Battery Materials

Sumitomo Chemical is a diversified chemical company with significant investments in energy materials. Their work on polymer-based solid ion conductors focuses on creating flexible, processable electrolyte systems that maintain high ionic conductivity at room temperature.

Innovation Focus:

• Development of high-performance solid polymer electrolytes

• Collaborations with automotive partners for EV battery applications

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6️⃣ 5. Toyota Motor Corporation

Headquarters: Toyota City, Aichi, Japan
Key Offering: Proprietary Solid Electrolytes, Full Solid-State Battery Systems

Toyota is not just an automaker but a significant innovator in solid-state battery technology. The company holds numerous patents on sulfide-based solid electrolytes and is working towards the mass production of solid-state batteries for its future electric vehicle lineup.

Innovation Focus:

• Pioneering sulfide-based solid electrolyte technology

• Vertical integration from material science to vehicle integration

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5️⃣ 6. Ilika plc

Headquarters: Southampton, United Kingdom
Key Offering: Stereax® Solid-State Batteries, Proprietary Solid Electrolytes

Ilika is a pioneer in solid-state battery technology, developing materials for both miniature Stereax batteries for medical devices and larger format Goliath batteries for electric vehicles. Their expertise spans various solid ion conductor chemistries tailored for specific applications.

Innovation Focus:

• Materials for both small-scale and large-format solid-state batteries

• Focus on industrial-scale manufacturing processes

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4️⃣ 7. BrightVolt

Headquarters: Redmond, Washington, USA
Key Offering: Solid Polymer Electrolytes, Flexible Solid-State Batteries

BrightVolt specializes in solid polymer electrolyte technology, offering safer alternatives to conventional lithium-ion batteries. Their materials enable the production of flexible, thin-film solid-state batteries for IoT devices, smart cards, and medical applications.

Innovation Focus:

• Proprietary solid polymer electrolyte formulations

• Focus on safety and form factor flexibility

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3️⃣ 8. Excellatron Solid State LLC

Headquarters: Atlanta, Georgia, USA
Key Offering: Thin-Film Solid Electrolytes, Advanced Solid-State Battery Designs

Excellatron is focused on developing thin-film solid-state batteries using proprietary solid ion conductor materials. Their technology targets applications requiring high energy density, long cycle life, and exceptional safety, particularly in medical and aerospace sectors.

Innovation Focus:

• Thin-film deposition techniques for solid electrolytes

• Custom battery designs for specialized applications

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2️⃣ 9. Solid Power, Inc. (Partner Network)

Headquarters: Louisville, Colorado, USA
Key Offering: Sulfide-Based Solid Electrolytes, EV-Scale Solid-State Batteries

While primarily a battery developer, Solid Power works closely with material suppliers and has developed its own sulfide-based solid electrolyte technology. The company’s partnerships with automakers like BMW and Ford highlight the importance of its material innovations.

Innovation Focus:

• High-conductivity sulfide solid electrolytes

• Scalable manufacturing processes for automotive applications

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1️⃣ 10. QuantumScape Corporation

Headquarters: San Jose, California, USA
Key Offering: Ceramic Solid Separator, Anode-Less Solid-State Battery Technology

QuantumScape is developing revolutionary solid-state battery technology using a proprietary ceramic solid electrolyte. Their anode-less design and high-conductivity ceramic separator represent a significant advancement in solid ion conductor materials for electric vehicles.

Innovation Focus:

• Proprietary ceramic solid electrolyte technology

• Partnership with Volkswagen for automotive commercialization

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🔋 Outlook: The Future of Solid Ion Conductor Materials Is High-Performance and Scalable

The solid ion conductor material market is experiencing transformative growth as the limitations of conventional liquid electrolytes become increasingly apparent. While current materials are primarily used in research and niche applications, the industry is rapidly advancing toward commercial-scale production for mainstream energy storage.

📈 Key Trends Shaping the Market:

• Accelerated R&D in sulfide, oxide, and polymer-based solid electrolytes

• Increasing automotive industry investments in solid-state battery technology

• Growing focus on improving interfacial stability and manufacturing scalability

• Emergence of hybrid solid electrolyte systems combining multiple material advantages

Get Full Report Here: Solid Ion Conductor Material Market – View in Detailed Research Report

The companies profiled above are not only developing advanced materials—they’re enabling the next generation of safe, high-energy-density energy storage systems that will power our electric future.