High Performance, Ready to Scale

Sithorit® AX is PCC Thorion’s high-performance silicon-carbon composite engineered for the next generation of lithium-ion batteries. Designed to enhance the performance of advanced battery cells while integrating seamlessly into existing cell manufacturing processes, Sithorit® AX combines outstanding electrochemical performance with industrial scalability as a ready-to-use drop-in solution.

A Composite Material for an Innovative Drop-in Solution

Conventional graphite anodes are increasingly reaching their performance limits. Sithorit® AX enables the stepwise introduction of an advanced silicon-carbon composite as a drop-in solution for graphite-based electrode formulations. This allows battery manufacturers to significantly increase the energy density of modern lithium-ion batteries without fundamentally changing established production processes.

Key Benefits

• Seamless drop-in integration into existing cell manufacturing processes

• Significant increase in battery energy density

• Excellent cycle stability enabled by an optimized silicon-carbon architecture

• Industrially scalable production concept

• Fully compatible with existing production equipment

• Exceptionally low carbon footprint through the use of renewable energy and a sustainable raw material base

Unlocking Higher Performance for Future Applications

By combining the high theoretical capacity of silicon with the stability of an advanced carbon matrix, Sithorit® AX unlocks the full potential of silicon-based anode materials for industrial applications. The material supports the development of next-generation batteries requiring higher energy and power densities for electric mobility, drones, robotics, and other emerging technologies.

Electrolyte Additives

Enhancing Performance and Sustainability Through Innovative Electrolyte Additives

The performance of modern lithium-ion batteries is not determined solely by anode and cathode materials. The electrolyte and its additives also play a critical role in influencing efficiency, safety, service life, and fast-charging capability. PCC Thorion develops innovative electrolyte additives that are specifically designed to enhance battery materials and pave the way for higher-performance and more sustainable battery systems.

Higher Efficiency and Extended Service Life

Electrolyte additives govern key electrochemical processes within a battery cell. They promote the formation of a stable Solid Electrolyte Interphase (SEI), protect electrode surfaces, improve charge and discharge efficiency, and contribute significantly to extended battery life. As silicon-based anode materials become increasingly adopted, the performance requirements for electrolyte additives continue to grow.

New Materials Require New Additives

Silicon-based anodes offer tremendous potential for increasing energy density but place unique demands on the electrolyte. PCC Thorion therefore develops additive solutions specifically tailored to next-generation high-performance anode materials, enabling their full potential to be realized over the long term.

Biodegradable Alternatives Address Emerging PFAS Regulations

Today, Fluoroethylene Carbonate (FEC) is widely used with silicon-based anodes to support the formation of a stable SEI layer. However, fluorinated additives are increasingly affected by regulatory developments, particularly those related to PFAS substances. PCC Thorion is taking a forward-looking approach by developing innovative additives that deliver comparable functionality while offering the potential for improved biodegradability.

Future-Proofing Through Sustainability and Technological Freedom

For PCC Thorion, future readiness extends beyond sustainability alone. Electrolyte and cell manufacturers often require highly specialized additives to achieve the desired performance characteristics of their battery cells. When suitable additives are available only from limited sources or are constrained by existing intellectual property rights, manufacturers' Freedom to Operate (FTO) can be significantly restricted.

To address this challenge, PCC Thorion develops alternative electrolyte additives with equivalent or enhanced functionality. These solutions create additional technological options, reduce supply dependencies, and help customers develop high-performance electrolyte systems with greater flexibility in product development. At the same time, our additive concepts are designed with regulatory compliance and sustainability considerations in mind.

Key Benefits

• Optimized performance across a wide range of cell chemistries

• Improved cycle life and extended battery durability

• PFAS-free alternatives to fluorinated additives

• Enhanced Freedom to Operate (FTO) through alternative additive solutions

Our electrolyte additives are not developed in isolation, but as part of an integrated materials platform. Through the close alignment of our additive technologies with our silicon-based anode materials, we create solutions that are optimally matched and engineered to maximize the performance, longevity, and sustainability of next-generation lithium-ion batteries.