Impact Minerals' Alluminous Reaches Key Battery Qualification Milestone with C4V's Advanced Particle Engineering

Alluminous' High Purity Alumina Engineered for Battery Separator Coatings

The successful completion of the particle engineering phase validates Alluminous’ High Purity Alumina for advanced battery uses. Utilizing C4V’s proprietary dry particle engineering technology, Alluminous processed its HPA to produce material compatible with lithium-ion battery separator coatings. Independent testing verified that the engineered HPA retained its chemical purity throughout processing, a critical factor as contaminants can degrade electrochemical performance in batteries.

This milestone is significant as it confirms both the material’s quality and the effectiveness of C4V’s particle engineering platform in processing Alluminous HPA without quality loss. Particle engineering is essential for battery-grade HPA development since separator coatings demand precise control over particle size, morphology, and dispersion to ensure uniform coating quality and reliable electrochemical function. Completing this phase demonstrates Alluminous’ ability to overcome a major technical hurdle in commercializing HPA for battery applications in North America.

Particle Size Distribution and Crystal Structure Confirmed for Separator Coating Performance

Technical evaluation showed the engineered HPA met stringent battery industry criteria for particle size distribution. Results indicated 90% of particles were smaller than 3 microns, with 10% under 500 nanometres, fulfilling the demanding particle size requirements for separator coatings. Controlled particle morphology is vital for consistent coating thickness and electrochemical performance in large-scale battery manufacturing.

X-ray diffraction (XRD) analysis by C4V confirmed the HPA’s alpha crystal form, preferred for battery separator coatings. The program also successfully developed stable, sodium-free, water-based slurries suitable for coating separators. The absence of sodium contamination is crucial for advanced battery chemistries, where such impurities can adversely affect cell performance and lifespan. These technical accomplishments mark an important step toward commercial battery qualification.

Advancing to Electrochemical Validation and Full Battery Cell Testing

Following particle engineering completion, the Alluminous-C4V partnership is progressing to battery architecture development and electrochemical validation. Engineered Alluminous material will be incorporated into full battery cells for performance testing, with additional material prepared for this phase. These efforts aim to validate HPA’s performance in advanced lithium-ion battery systems and support future commercial qualification discussions with North American battery manufacturers.

This transition is a critical stage in the qualification program, encompassing separator coating formulation optimization, coated separator production, electrochemical testing within lithium-ion cells, and benchmarking against commercial separator materials. The test program aligns closely with lithium battery supply chain qualification processes, providing a robust technical foundation for future customer engagement and potential commercial supply agreements.

C4V Collaboration Expands from Technical Assessment to Commercial Partnership

The milestone’s success has strengthened Alluminous and C4V’s commercial relationship. While initial efforts focused on evaluating Alluminous HPA’s suitability for battery applications, their Collaboration Agreement also includes support for commercial opportunities as the project advances through battery validation. C4V offers technical advisory assistance throughout the qualification process, leveraging its expertise and established North American battery supply chain connections.

This growing commercial engagement reflects increasing confidence in Alluminous’ technology and the strategic importance of secure North American supply chains for critical battery materials. As governments and manufacturers prioritize domestic battery material sources, collaborations like this pave the way for future commercial prospects. C4V’s alignment of its test program with industry qualification standards indicates positioning Alluminous HPA for potential supply deals with major battery producers.

Impact Minerals’ Strategic Role in North American Battery Materials Supply

Impact Minerals Limited’s 50% ownership of Alluminous Pty Ltd places it as a key player in developing battery-grade HPA for the North American market. This involvement underscores a strategic focus on high-purity specialty materials catering to growing demand from advanced battery manufacturers. With rapid growth driven by electric vehicle adoption and energy storage needs, suppliers of consistently high-purity materials in North America are well-positioned for sustained commercial success.

Alluminous occupies a critical position at the intersection of materials science, battery technology, and energy security. High purity alumina is vital for battery separator coatings that enhance safety, thermal stability, and electrochemical performance. The successful validation of Alluminous HPA through the C4V collaboration exposes Impact Minerals to one of the fastest-growing battery materials sectors, suggesting a pathway toward qualification as a supplier to major North American battery manufacturers.

Maintaining Ultra-High Purity Through Particle Engineering: A Technical Breakthrough

A key technical achievement is demonstrating that Alluminous’ HPA maintained ultra-high chemical purity throughout particle engineering. While chemical purity is essential for battery applications, many particle engineering methods risk introducing contaminants or degrading material properties. Achieving the required particle size and morphology without compromising purity validates both the original HPA quality and C4V’s particle engineering platform suitability.

This breakthrough addresses a major challenge in commercializing HPA for batteries. Although many suppliers produce chemically pure HPA, fewer can engineer it into battery-specific particle sizes and morphologies without contamination or performance loss. Successfully completing this phase indicates Alluminous has established a reliable route to meet stringent battery industry technical specifications.

Strategic Importance of Developing North American Battery Supply Chains

The Alluminous-C4V collaboration occurs amid heightened focus on secure, domestic battery supply chains in North America. U.S. and Canadian policies and manufacturer initiatives incentivize local sources of critical battery materials. Alluminous’ potential role as a battery-grade HPA supplier aligns with these objectives, unlocking commercial opportunities previously unavailable.

Expanding commercial engagement between Alluminous and C4V reflects this strategic landscape. Both companies are exploring North American battery supply chain opportunities alongside technical qualification, suggesting ongoing discussions with potential downstream partners about future supply. The increasing emphasis on supply chain security creates a favorable environment for qualified critical material suppliers like Alluminous.

Pathway to Commercial Qualification and Customer Engagement

Completing the first technical milestone sets a clear roadmap toward commercial qualification. Upcoming phases will focus on optimizing separator coating formulations, producing coated separator materials, conducting electrochemical evaluations in lithium-ion cells, and benchmarking against commercial separators. These steps will generate essential technical data and validation to support battery manufacturers’ qualification of new materials. C4V’s alignment with industry qualification protocols facilitates this process.

Impact Minerals’ Managing Director, Dr Mike Jones, stated the program is "moving into battery architecture development and electrochemical validation, bringing us significantly closer to potential commercial qualification for advanced battery applications." This reflects confidence in technical progress and a realistic path toward commercial deployment of Alluminous HPA. Concurrent expansion of commercial engagement with C4V indicates active pursuit of battery materials market opportunities.

Risks and Technical Challenges Ahead

Despite this milestone’s importance, substantial technical work remains before commercial qualification is secured. Battery qualification involves extensive electrochemical testing, safety validation, and performance benchmarking. There is no assurance Alluminous HPA will meet all manufacturer requirements or compete effectively with alternative materials. Impact Minerals cautions that actual outcomes may differ materially from forward-looking statements in this announcement.

Commercialization also depends on securing customer commitments through complex negotiations and lengthy validation. Market dynamics, competition, and evolving battery technologies could impact Alluminous HPA’s commercial viability. Investors should note that successful technical milestones do not guarantee commercial success or revenue generation for Impact Minerals or Alluminous.