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Highlights
- Altech Batteries’ Silumina Anodes™ achieved 88.5% capacity retention after 500 cycles with just 5% silicon addition to graphite.
- The 5% Silumina addition delivers 500 mAh/g initial capacity and retains 420 mAh/g after 500 cycles.
- Repeated tests confirmed over 88% retention, demonstrating reproducibility and process stability.
- Silicon stores nearly 10x more lithium per gram than graphite.
Altech Batteries Limited (ASX:ATC) (FRA:A3Y) has reported a major milestone in its Silumina Anodes™ Project. The latest data demonstrates that incorporating only 5% of Silumina Anodes™ into a graphite anode yields 88.5% capacity retention after 500 charge-discharge cycles. Repeated tests consistently showed retention above 88.0%, confirming both reproducibility and process stability.
This represents the highest battery cycling performance achieved to date for ATC’s alumina-coated spherical silicon anode material. Silicon is gaining wider adoption across the battery industry for its ability to store nearly ten times more lithium per gram than graphite, resulting in a significant increase in anode energy density. Altech’s spherical alumina coating decreases swelling-induced electrode degradation.
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