Li-ion
CELLS
Among energy storage technologies, Li-ion batteries currently offer the best-performing results in terms of energy density.They also offer an extended lifespan, with performance that can be tailored to factors such as fast charging, minimal self-discharge, and the ability to withstand thousands of charge and discharge cycles.
However, significant challenges remain in this field:
CAPACITY
How to increase it without accelerating cell degradation;
CYCLE LIFE
Meeting market demands with stable performance at low cost;
COSTS
Continuously reducing them is the main challenge in every sector of our society;
LOCAL RESOURCES
Addressing climate challenges and ensuring energy sovereignty.
OUR SOLU-TIONS
Unlike the cathode and the electrolyte, the anode remains the primary focus for potential improvements to increase cell capacity.
Graphite, the most commonly used material in its production, has now reached its limits.
It has already been demonstrated that incorporating silicon enhances graphite’s lithium accommodation capacity, thereby significantly increasing the capacity of Li-ion cells.
Guided by our expertise in silicon and its derivatives, and through the continuous refinement of our technology, we have developed a silicon-based compound that has undergone various surface and bulk treatments.
By easily mixing with graphite and being integrated into the anode, it increases the capacity of our cells while limiting their degradation. This silicon compound also incorporates an innovative, patented fluorination process (FLUOCAR®) that increases conductivity and improves the lifespan of our cells.
OUR RESULTS
Our third-generation material (GEN3) delivers performance that surpasses all current market standards.
The silicon-based compound we’ve developed enables a near 25% increase in cell capacity and optimized cycle life. After 1,000 cycles, cells retain 80% of their initial capacity—all while maintaining an easy industrial implementation and production costs.
Additionally, the raw materials used are abundant in France, Europe, and the Americas, supporting energy sovereignty for adopting countries.
Finally, our cells are customizable to meet the specific needs and goals of diverse applications.
mAh
4030
Wh/kg
306
mAh
8 385
Wh/kg
306
mAh
6 050
Wh/kg
306
mAh
12 757
​
Wh/kg
306
18650
21700
26650
32650
CAPACITY​ + 25% minimum
CYCLE LIFE > 1 000
COST = ZERO IMPACT
ADAPTABLE TO MANY APPLICATIONS
LOCALLY SOURCED RESOURCES
APPLI-CATIONS
Our cells, primarily designed for the 3C* market , are also adaptable to both civilian and military applications.
By providing tailored support to our partners in the development of their batteries equipped with our cells, we empower them to meet their specific needs—whether in terms of energy density, performance, or cost.
* 3C stands for Computer, Communication, Consumer electronics
FOCUS
ON SILIC-ON(Si)
Silicon makes up 27.7% of the Earth’s crust, making it the second most abundant element on the planet after oxygen 1. Although primarily produced in China, it is found worldwide, and France ranks among the top 10 producers 2 . However, silicon does not occur in its native state; it is mainly found as oxides, such as quartz or sand, and requires purification.
His main industrials applications are metallurgical alloys, silicones, photovoltaic and microelectronic.
Yet, its refining and processing have significant environmental impacts.
Thanks to the PUREVAP™ process 3—owned by HPQ Silicon, a Novacium partner—the silicon we use substantially mitigates these issues. Unlike standard methods, PUREVAP™ produces high-purity silicon in a single step, reducing both production costs and COâ‚‚ emissions.
1 - Source CNRS 2 - Source Minéral Info 3 - PUREVAP
news.
Following the industrial launch of the first batches of cylindrical cells in the second quarter of 2025, we are starting production for STAT at the beginning of 2026.
next.
We are constantly striving to improve our performance, with the next step targeting 4,500 mAh for our 18650 cells.
