Mechanism and Primitive Description
The carbon-substrate flow is the supply path that transforms upstream carbonaceous feedstock into the active material installed in the disclosed cell. The flow is characterized as a sequence of credentialed process steps, each with feedstock input, product output, responsible authority, and metrology artifact. The multiple-admissible-carbonization-processes primitive specifies that the carbonization step within this flow is not bound to a single technology; instead the primitive admits a class of processes, any of which may be selected for any given supply path, and combinations of which may be composed within a single path.
Four carbonization processes are explicitly disclosed. Flash Joule heating (FJH) applies a high-current electrical pulse to a packed bed of carbonaceous feedstock, raising the feedstock briefly to graphenization temperatures (on the order of three thousand kelvin) and producing turbostratic graphene with hierarchical porosity at high throughput per pulse. Hydrothermal carbonization (HTC) processes high-moisture feedstock in pressurized aqueous conditions at moderate temperatures, producing a hydrochar intermediate amenable to subsequent thermal treatment. Host-manufacturing-native conversion exploits the elevated-temperature operations already present in conventional building-material manufacture (cement-clinker firing, asphalt processing, brick-firing) to convert co-fed carbonaceous additives in the host kiln environment without dedicated carbonization equipment. In-situ flash graphenization performs the FJH-equivalent thermal pulse within or adjacent to the cell-fabrication line, eliminating intermediate handling of the graphenized active material.
The primitive specifies the admissibility relation: any of the four processes, applied to a feedstock for which the process is appropriate, produces an output that is admissible into downstream credentialed cell fabrication. The four processes are not ordered or ranked; they are co-admissible. The primitive further specifies that combinations are admissible, including sequential combinations (e.g. HTC followed by FJH) and parallel combinations (multiple processes feeding a common downstream blending step). The output of each process step is independently characterizable and the lineage chain records the process identity, parameters, and acceptance metrology for each step regardless of how many steps the path comprises.
Operating Parameters and Engineering Envelope
Selection occurs along three principal axes. The feedstock axis governs the choice between dry-feedstock processes (FJH, in-situ flash) and wet-feedstock processes (HTC); high-moisture biomass and food-waste streams require HTC dewatering before any flash-heating step is feasible, while waste plastics, petroleum coke, and dry biomass admit direct FJH. The scale axis governs the choice between centralized and distributed conversion: FJH installations achieve favorable specific energy at megawatt-scale pulse delivery and are well suited to centralized processing of aggregated feedstock streams, while in-situ flash and host-manufacturing-native conversion accept distributed deployment at sites where the carbonization can be co-located with downstream operations. The integration axis governs the choice between dedicated and host-shared infrastructure: where a host-material manufacturing facility (cement plant, asphalt plant, brick kiln) is already operating at the site, host-manufacturing-native conversion exploits the existing thermal asset and avoids dedicated carbonization equipment.
Quantitatively, the disclosed envelope encompasses FJH pulse durations on the order of milliseconds to tens of milliseconds at peak temperatures of approximately two thousand five hundred to three thousand five hundred kelvin; HTC processing in the range of one hundred eighty to two hundred fifty degrees Celsius at autogenous pressures over residence times of hours; host-manufacturing-native conversion at the temperatures characteristic of the host process (approximately one thousand four hundred fifty degrees Celsius for cement clinker, lower for asphalt and brick firing); and in-situ flash graphenization at parameters matched to the FJH envelope and adapted to the geometry of the integration line. Acceptance metrology is consistent across processes and includes Raman-spectroscopic confirmation of graphenic ordering, BET surface-area characterization, hierarchical-pore-size-distribution measurement, and electrochemical acceptance testing on a representative cell build.
The primitive admits feedstock heterogeneity within and across processes. A single FJH installation may process multiple feedstock types in succession, with feedstock identity recorded per pulse on the lineage chain. A hybrid path may apply HTC to a wet stream, FJH to a dry stream, and blend the products downstream, with the blend ratio recorded as a credentialed event. Selection is therefore continuous over feedstock mix and not constrained to single-feedstock supply paths.
Alternative Embodiments
A first embodiment routes mixed-municipal organic waste through HTC pre-treatment to a hydrochar intermediate, then through FJH to graphenized active material at a centralized facility. A second embodiment integrates an in-situ flash graphenization stage immediately upstream of cell active-material deposition, eliminating storage and handling of the graphenized intermediate.
A third embodiment co-fires a carbonaceous additive into a host cement kiln, recovering graphenized material from the kiln output stream as a value-added co-product of clinker production. A fourth embodiment uses an asphalt plant as the host process, with recovered graphenized material feeding cell fabrication co-located with road-material manufacture.
A fifth embodiment applies FJH to petroleum-coke or coal-derived feedstock at a refinery-adjacent installation, leveraging existing solid-handling infrastructure. A sixth embodiment applies HTC to algal or aquatic-biomass feedstock with subsequent FJH at a separate facility connected by credentialed transport. A seventh embodiment supports a fully distributed deployment in which small-scale FJH or in-situ flash equipment is sited at each cell-fabrication node, with feedstock aggregated locally and graphenized material consumed without intervening transport.
Composition with Adjacent Primitives
The multiple-admissible-carbonization-processes primitive composes with the credentialed manufacturing-event primitive: each carbonization event, regardless of process, generates a signed attestation recording feedstock identity, process parameters, output metrology, and responsible authority. The lineage chain therefore records the full process history of every active-material lot independent of which carbonization technology was employed.
Composition with the feedstock-provenance primitive binds upstream feedstock identity through the carbonization step into the downstream cell credentialing, supporting end-to-end audit from waste-stream origin to deployed cell. Composition with the regulatory-binding primitive admits jurisdiction-specific approval of particular process classes (for example, regulatory acceptance of host-manufacturing-native conversion at permitted host facilities) without altering the architectural primitive.
Composition with the hierarchical-porosity-preservation primitive establishes the acceptance criterion across processes: the carbonization output is admissible only if the resulting active material exhibits the hierarchical pore-size distribution required for the disclosed cell chemistry. Process selection is therefore subordinate to the porosity outcome, and any process meeting the porosity criterion is co-admissible with any other.
Prior-Art Distinctions
Prior carbonization-process literature treats each process as a self-contained technology with its own feedstock, equipment, and product specifications. FJH literature describes flash graphene production at laboratory and pilot scale without architectural integration into a downstream credentialed cell-manufacturing flow. HTC literature describes hydrochar production for combustion or soil-amendment uses and does not specify a downstream graphenization or cell-fabrication interface. Host-manufacturing co-firing literature describes carbon sequestration in cement and similar materials but does not specify a recovery path for graphenic active material. In-situ flash graphenization is disclosed in recent literature without a credentialing chain or feedstock-provenance binding.
The disclosed primitive is distinguished by treating the four processes as co-admissible inputs to a single architectural flow rather than as competing standalone technologies. The primitive specifies the admissibility relation, the acceptance criteria, and the credentialing interface; selection among processes is engineering choice driven by feedstock, scale, and integration, not by architectural exclusion. Prior art does not specify this admissibility relation and does not provide a single credentialing architecture under which all four processes are valid inputs.
The disclosed primitive is further distinguished by admitting hybrid flows in which multiple processes operate within a single supply chain with credentialed handoffs between stages. Prior art treats process boundaries as supply-chain boundaries; the disclosed flow internalizes the boundaries within a unified credentialing chain. The primitive is also distinguished by its explicit future-extensibility: novel carbonization processes meeting the porosity and graphenic-ordering criteria are admitted under the existing credentialing architecture without architectural amendment, a property absent from prior single-process disclosures.
Disclosure Scope
The disclosure encompasses the four enumerated carbonization processes (flash Joule heating, hydrothermal carbonization, host-manufacturing-native conversion, in-situ flash graphenization) and admits any combination thereof, including sequential, parallel, and hybrid configurations within a single supply chain.
The disclosure encompasses all feedstock classes admissible into any of the four processes, including but not limited to lignocellulosic biomass, food-waste organics, mixed-municipal organic waste, waste plastics, petroleum coke, coal-derived carbon, algal and aquatic biomass, and engineered carbonaceous precursors. The disclosure admits feedstock mixing and per-pulse or per-batch feedstock heterogeneity recorded on the credentialed lineage chain.
The disclosure encompasses centralized, distributed, and hybrid deployment topologies, and admits any siting configuration consistent with the selected process or process combination. The disclosure encompasses host-manufacturing co-location at cement, asphalt, brick, and equivalent thermal-process facilities, and admits any further host process whose operating envelope supports carbonaceous co-feed.
The disclosure expressly extends to additional carbonization processes developed subsequent to filing where such processes produce graphene-class active material with preserved hierarchical porosity. Such processes are admitted under the existing credentialing architecture without architectural change. Specific process parameters, throughput figures, temperature ranges, and acceptance thresholds recited in the present specification are illustrative and do not narrow the scope of the disclosed primitive.
The disclosure additionally encompasses energy-source flexibility for each enumerated process. FJH and in-situ flash graphenization may be powered by grid electricity, by behind-the-meter renewable generation, by waste-heat-recovery generation co-located with the host facility, or by any combination thereof. HTC may be heated by fossil-fuel combustion, electrical resistance, solar-thermal collection, or industrial waste-heat recovery. Host-manufacturing-native conversion uses the energy budget of the host process by definition. The carbon-intensity of each carbonization event is recorded as a metrology field on the lineage chain attestation, supporting downstream embodied-carbon accounting without architectural change to the primitive.
The disclosure further encompasses byproduct-handling flexibility. Each enumerated process produces process-specific byproducts (FJH off-gases, HTC process water, host-manufacturing co-product streams, in-situ flash effluents) for which handling pathways are recorded as credentialed events on a parallel byproduct chain linked to the primary active-material chain. The byproduct-handling pathways are not architecturally restricted; the primitive admits any handling consistent with applicable jurisdictional regulation. The combination of process flexibility, energy-source flexibility, and byproduct-handling flexibility renders the disclosed primitive deployable across a broad range of regulatory, geographic, and economic contexts without modification of the core architectural specification.
