Altech Batteries (ASX:ATC) strengthens global position as major battery producer begins silumina anodes evaluation

Altech Batteries Limited (ASX:ATC) has advanced a significant stage in the development of its Silumina Anodes technology after receiving a direct approach from one of the world’s largest electric vehicle battery manufacturers.

This engagement provides strong validation of the technical progress achieved by the company and has created a structured pathway for formal material testing, graphite coating trials and continued technical collaboration.

Altech’s Managing Director Iggy Tan explains the importance of this industry interest, the scope of the activity underway and the relevance of the most recent long cycle testing results for Silumina Anodes.

What prompted the approach from the major battery manufacturer and why is it important for Altech?

The approach from the major battery manufacturer was unsolicited and followed their review of the performance advances achieved by Silumina Anodes.

Their decision to initiate the discussion is significant, because it shows that global battery leaders are recognising the progress demonstrated through our alumina coated silicon.

During preliminary dialogue the group highlighted a performance outcome that they consider uncommon across the industry.

“across the industry they have not yet seen silicon additions deliver such meaningful performance improvements at low percentages.”

This acknowledgement confirms the technical relevance of our work and underscores that our silicon additive is performing at a level that distinguishes it from the challenges ordinarily seen with silicon integration, including expansion related degradation and rapid cycle life decline.

For Altech, this engagement provides rare external validation and signals that Silumina Anodes is reaching a stage where leading manufacturers are prepared to conduct in depth evaluations of the technology.

What is the purpose of the NDA and what activity is happening under it?

The NDA provides the framework for confidential technical exchange and it enables both parties to proceed with the level of transparency required for advanced evaluation.

Under the agreement Altech has prepared Silumina Anodes samples, manufactured under the direction of Chief Technical Officer Dr Jingyuan Lui, and shipped them to the Battery Group’s state of the art testing laboratories in China.

These samples will undergo formal assessment using the group’s internal testing procedures.

In addition to material testing, the NDA also governs the graphite coating trials requested by the Battery Group.

Several kilograms of their representative graphite have been dispatched to our Perth laboratory where our team is applying Altech’s proprietary alumina coating process directly onto their anode substrate.

Once these coated batches are complete, they will be returned to the Battery Group for benchmarking against their existing formulations, providing a direct comparison that will allow them to assess the influence of our coating technology on their preferred graphite material.

What early feedback has the Battery Group provided regarding Silumina Anodes performance?

The initial feedback from the Battery Group has been constructive and encouraging, particularly because they noted that very few suppliers globally are producing silicon additives with the stability and consistency demonstrated by Silumina Anodes.

“very few material suppliers globally are producing silicon additives with this level of stability, consistency, and real world applicability.”

Traditional attempts to integrate silicon into commercial anodes often face limitations such as unstable SEI formation and mechanical degradation from expansion, yet the Battery Group’s early observations suggest that our alumina coated silicon behaves differently.

Their acknowledgement of these properties reinforces the work undertaken by our development team and demonstrates that the technology is resonating strongly with those who operate at scale in the battery manufacturing sector.

What do the latest long cycle results show and why are they important?

Altech’s latest long cycle results have delivered the strongest performance data achieved so far for Silumina Anodes.

The updated testing shows 83 percent capacity retention after one thousand charge and discharge cycles using a five percent Silumina Anodes addition to a standard graphite anode, which demonstrates both impressive durability and the ability to maintain structural and electrochemical stability across extended use.

“the latest test results now demonstrate an impressive 83 percent capacity retention after 1,000 charge discharge cycles with a 5 percent Silumina Anodes addition to a standard graphite anode.”

This performance places Silumina Anodes at the forefront of next generation silicon enhanced anode technologies and confirms the commercial potential of the material, particularly when considered alongside the strong results reported earlier in the year.

High retention over one thousand cycles is a critical indicator for industry partners, because it directly reflects long term battery performance in practical operating conditions.

What is involved in the graphite coating trials and why are they valuable?

The graphite coating trials requested by the Battery Group involve applying Altech Batteries alumina coating technology directly to their chosen graphite substrate.

This work is being conducted at our Perth laboratory where our technical team is preparing evaluation batches using several kilograms of graphite supplied by the Battery Group.

These coated batches will then be returned for internal benchmarking, enabling the Battery Group to assess the direct performance impact of the coating when applied to the graphite they already use in their anode systems.

This process is valuable because it transitions the collaboration from general technical interest into fully applied evaluation.

By testing the coated graphite within their own framework, the Battery Group will be able to determine how effectively Altech’s alumina coating integrates with their established materials, which is essential for any future development pathway.

Positioning silumina anodes for global evaluation

As demonstrated throughout this Q&A, the combination of updated performance data, the commencement of formal material testing by a leading global battery manufacturer and the progression of graphite coating trials marks a substantial advancement for Silumina Anodes.

Iggy Tan notes that the interest from one of the largest groups in the sector is a strong indication of the progress made by Altech’s alumina coated silicon technology, and it further validates the outcomes achieved through continuous development and testing.

These activities create a clear and commercially relevant pathway for the company to continue demonstrating the performance of Silumina Anodes within real world battery environments while strengthening its position in the global battery materials market.

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