Technology
Hollow Carbon Nano-Onions are structurally distinct from every competing advanced carbon material. Here is why that matters for energy storage.
Structure
A single HCNO particle consists of multiple concentric graphenic shells surrounding a hollow core — each shell separated from the next by a precisely engineered interlayer gap. The particle is smaller than a biological virus yet structurally more complex than any competing carbon electrode material.
Tessera produces HCNOs to formal specification: shell count, hollow volume, interlayer spacing, surface chemistry, defect density, and dopant placement are all controlled parameters — not statistical outcomes of a bulk process.
This is what "Precision Carbon" means. Not a grade. Not a surface-area number. A fully specified structure.
Produced to specification, not to grade.
Ions from the electrolyte slip into the gaps between each concentric shell — like pages of a book. The interlayer spacing in HCNOs is engineered to accept ion chemistries, including larger ions such as sodium and potassium, that graphite cannot accommodate.
Charged particles adsorb directly onto the outer shell surface — the same mechanism that powers supercapacitors. The spherical geometry ensures full surface accessibility; flat graphene sheets stack and block each other.
The hollow core provides additional interior surface area where ions accumulate — storage capacity that simply does not exist in solid carbon particles.
Ions pack in during charging, and materials swell. The hollow core acts as a built-in mechanical buffer: swelling pressure is absorbed inward into empty space rather than outward against adjacent particles. This is the structural basis for HCNO's cycle-life advantage.
Manufacturing
Tessera's proprietary precision synthesis process produces Hollow Carbon Nano-Onions to formal specification across multiple carbon-rich feedstocks. A single reactor architecture accepts different input materials and produces the same structurally controlled HCNO output — tuned by grade for the target device category.
This feedstock agnosticism is a supply-chain resilience advantage that no competing advanced carbon supplier offers. Peers are locked to single input materials; Tessera is not.
Patent filings covering the precision synthesis process are in preparation.
Differentiation
Hollow CNOs deliver four simultaneous energy-storage mechanisms. No solid carbon particle — closed-pore scaffold, nanocomposite, open mesh, or graphite blend — can replicate this structural architecture.
Tessera's process produces HCNOs to atomic-level specification and does so across multiple carbon-rich feedstocks from a single reactor architecture. The process is proprietary, patentable, and not replicable from the published literature. Patent filings are in process.
The same precision synthesis process accepts multiple carbon-rich feedstocks. Competitors are supply-chain-locked to a single input material; Tessera is not.
A single process produces six distinct HCNO grades for six device categories. Competing advanced carbon suppliers are focused on a single application. Tessera's platform spans the energy-storage landscape.
Get in Touch
Detailed technical materials and grade discussions are available to qualified industrial partners and investors under NDA. Tessera Materials is 2–3 years from first commercial product release; technical briefings are available now to prospective partners.