HPQ Silicon’s French affiliate, Novacium, has demonstrated that its silicon anode battery materials showed a 40% overall capacity improvement over a graphite benchmark in 100 charge-discharge cycles.
The tests simulated real-world use to assess the durability and longevity of lithium-ion 18650 batteries made with a blend of graphite and Novacium’s GEN3 silicon-based anode material.
After 100 cycles, the battery performance was 26% higher than Novacium’s previous GEN1 material and 15% higher than its GEN2 material.
The performance degradation for GEN3 advanced silicon material over 100 cycles was minimal, with a retention of 98.8%, decreasing from 3,883.0 mAh to 3,838.2 mAh. This compared to a 99.2% decrease from 2,780.0 mAh to 2,758.5 mAh for the graphite benchmark. This difference of less than 0.5% falls within the margin of error.
“The ability to producing silicon-based anode material that enables 18650 battery cells to exceed 4,000 mAh under maximum discharge testing conditions and achieve 40% more capacity than graphite-only Li-Ion batteries after 100 charge-discharge cycles under real-world conditions demonstrates our capabilities,” said Jed Kraiem, COO of Novacium.
Source: HPQ Silicon