{"schema_version":1,"experiment_id":"eoa_inverse_innovation_exp09_archetype_breadth150_20260804","research_id":"eoa_inverse_innovation_exp09_light_prior_art_20260804","cell_id":"rate_limiting__chemistry_materials","search_lanes":{"direct_problem_and_intervention":{"queries":["lithium ion cathode slurry carbon black powder addition rate mixing agglomerates wetting study","conductive carbon cathode slurry mixing powder feeding rate torque agglomeration","patent battery slurry powder feeder feed rate controlled torque mixer","\"token bucket\" powder feeder mixing"],"source_ids":["SRC1","SRC2"],"no_result_note":"No retained source disclosed a token-bucket or rolling-window burst allowance specifically for conductive-carbon admission to a lithium-ion cathode-slurry batch."},"synonyms_and_historical_terms":{"queries":["carbon black incorporation powder addition rate mixer wetting batches agglomerates","powders into liquids controlled addition fish eyes agglomerates","battery slurry mixing carbon black powder feeding sequence wetting dispersion patent feeder"],"source_ids":["SRC1","SRC2"],"no_result_note":"Searches using incorporation, wet-out, deagglomeration, fish-eye, loss-in-weight, and controlled-feeding terminology found adjacent practices but not the complete proposed control rule."},"products_practices_and_standards":{"queries":["gravimetric powder feeder lithium ion battery slurry mixing controlled feed rate","lithium battery slurry mixing automatic powder feeding system mass flow controller","site:cdc.gov NIOSH carbon black dust exposure engineering controls","site:nfpa.org combustible dust standard carbon black official"],"source_ids":["SRC3","SRC4"],"no_result_note":null},"component_combination":{"queries":["powder feeder rolling window mass flow limit controller","batch mixer powder addition rate control prevent agglomerates","powder induction controlled addition rate mixer agglomerates feeder","lithium ion battery automatic batching powder feeding metering system"],"source_ids":["SRC1","SRC2","SRC3"],"no_result_note":"The component search found measured powder-rate control, battery-slurry automatic metering, and dispersion-sensitive cathode processing separately, but no direct evidence of their combination with explicit short- and long-window burst enforcement."}},"sources":[{"source_id":"SRC1","title":"The effect of solid content on the rheological properties and microstructures of a Li-ion battery cathode slurry","publisher":"Royal Society of Chemistry / PubMed Central","url":"https://pmc.ncbi.nlm.nih.gov/articles/PMC9054056/","source_type":"PRIMARY_RESEARCH","claims_supported":["Cathode slurries containing carbon black can develop agglomerates, increased fineness, high viscosity, and reduced dispersion uniformity.","Slurry uniformity and stability affect electrode-coating quality and battery manufacturing.","Under fixed shear, high solid content can produce large hard aggregate clusters because dispersion becomes slower than re-aggregation."]},{"source_id":"SRC2","title":"CN1658962A — Control system and method for mixing of slurry","publisher":"Google Patents","url":"https://patents.google.com/patent/CN1658962A/en","source_type":"OTHER","claims_supported":["Prior art measures actual powder-addition rate with a scale or loss-in-weight feeder before powder enters a mixer.","A controller adjusts feeder drive to maintain powder addition near a reference rate.","The disclosed application is continuous polyurethane-powder slurry production and controls concentration and flow, not battery-slurry wetting overload or a rolling-window burst budget."]},{"source_id":"SRC3","title":"Lithium-ion battery automatic batching system","publisher":"Pengyi Intelligent Technology Co., Ltd.","url":"https://en.qhdpengyi.com/products_detail/3.html","source_type":"FIRST_PARTY_PRODUCT","claims_supported":["A commercial first-party system for lithium-ion slurry materials combines metering, powder feeding and conveying, computer control, storage, and a transit buffer tank.","Automatic conveying and weighing-based metering are already established product capabilities in battery-slurry batching.","The product page does not disclose rolling-window admission, bounded bursts, or control based on wetting and dispersion capacity."]},{"source_id":"SRC4","title":"NIOSH Pocket Guide to Chemical Hazards — Carbon black","publisher":"National Institute for Occupational Safety and Health, CDC","url":"https://www.cdc.gov/niosh/npg/npgd0102.html","source_type":"OFFICIAL_GUIDANCE","claims_supported":["Carbon black is an inhalation and eye-contact hazard with NIOSH and OSHA time-weighted exposure limits of 3.5 mg/m3.","Carbon black is identified as a combustible solid that may contain flammable hydrocarbons.","Acetylene black is among the listed synonyms, making the guidance relevant to conductive-carbon handling."]}],"problem_evidence":{"status":"PARTLY_SUPPORTED","finding":"The literature directly shows that carbon-black-containing cathode slurries exhibit agglomeration, fineness, viscosity, dispersion-uniformity, and coating-quality problems, and existing systems demonstrate that powder mass flow can be measured and controlled before mixer entry. The retained evidence does not directly isolate short conductive-carbon feed spikes as the cause of floating rafts, torque excursions, or persistent cathode-slurry defects, so that specific transient-overload mechanism remains to be tested.","source_ids":["SRC1","SRC2","SRC3"]},"closest_prior_art":[{"name":"Loss-in-weight powder-rate feedback for continuous slurry mixing (CN1658962A)","source_ids":["SRC2"],"overlap":"Measures actual powder flow upstream of a mixer and controls feeder speed against a reference addition rate, placing control at substantially the same admission boundary.","remaining_difference":"It targets continuous polyurethane slurry concentration and output control; it does not disclose conductive-carbon cathode batches, rolling short and long mass windows, a bounded burst allowance, sealed deferral without catch-up, or prevention of wetting-capacity overload."},{"name":"Pengyi lithium-ion battery automatic batching system","source_ids":["SRC3"],"overlap":"Combines battery-slurry powder feeding, weighing-based metering, computer control, storage, and buffering in an available product system.","remaining_difference":"The public description concerns accurate automatic batching and total ingredient delivery, without an explicit sustained-rate envelope, burst budget, rolling-window enforcement, or dispersion-overload outcome."},{"name":"Cathode-slurry process control through solids, rheology, and dispersion management","source_ids":["SRC1"],"overlap":"Treats slurry dispersion, agglomeration, fineness, viscosity, and coating consequences as process-dependent and measurable.","remaining_difference":"The study varies solid content under a fixed mixing method; it neither varies powder-addition transients nor implements upstream admission control."}],"prior_art_disposition":"ADJACENT_PRIOR_ART","contrastive_claim_remaining":"For a fixed cathode recipe and mixer program, enforcing both sustained and burst limits on measured conductive-carbon mass before vessel entry will reduce transient dry-powder accumulation and torque excursions, and improve prespecified dispersion or coating indicators, relative to total-charge control or an average feeder-speed target alone. The remaining distinction is the explicit rolling-window burst envelope and no-catch-up upstream deferral, not powder metering or controlled feeding generally.","contrastive_claim_falsifier":"With formulation, powder lot, fill level, temperature limits, mixer program, and total mass fixed, the claim is falsified if the token-limited batch demonstrably bounds measured powder flux but produces no prespecified reduction in visible incorporation time, dry accumulation, torque or power excursions, fineness, rheology variability, or coating defects; it is also falsified if an ordinary constant-rate loss-in-weight control performs equivalently, showing that rolling windows and burst accounting add no effect.","gates":{"adequate_source_search":{"status":"PASS","rationale":"The bounded search covered the proposal directly, battery-slurry and carbon-black terminology, older incorporation and wet-out terminology, patents, commercial batching and feeder practices, safety guidance, and combinations of mass-flow measurement, mixer admission, and agglomeration. Four opened sources span four publishers and include primary research, a first-party product, and official guidance.","source_ids":["SRC1","SRC2","SRC3","SRC4"]},"supported_problem":{"status":"PASS","rationale":"Primary research supports agglomeration, rheology, nonuniform dispersion, and downstream coating relevance in carbon-black-containing cathode slurry. The particular assertion that transient feed spikes cause those outcomes is only partly supported, but is measurable in the proposed test.","source_ids":["SRC1"]},"distinct_testable_claim":{"status":"PASS","rationale":"Existing art substantially covers metered powder feeding and controlled powder-addition rates, but the retained sources do not disclose the narrower combination of rolling mass windows, limited bursts, and no-catch-up deferral for conductive-carbon cathode-slurry incorporation. Its incremental effect over constant-rate gravimetric control is falsifiable.","source_ids":["SRC1","SRC2","SRC3"]},"bounded_next_test":{"status":"PASS","rationale":"A two-batch non-production comparison using one lot and fixed formulation, fill, temperature limits, mixer program, and total mass can log mass flow, token balance, torque, power, temperature, incorporation time, fineness, rheology, and coating appearance. A stronger design should include or subsequently add a constant-rate loss-in-weight comparator to isolate the token-bucket increment.","source_ids":["SRC1","SRC2","SRC3"]},"no_obvious_safety_or_authority_stop":{"status":"PASS","rationale":"Carbon black has inhalation and combustible-solid hazards, but the proposed test preserves containment, extraction, approved operating limits, emergency stops, sealed upstream retention, EHS concurrence, and laboratory authority. These hazards impose controls and halt conditions rather than an obvious stop to the bounded non-production test.","source_ids":["SRC4"]}},"screen_survival":true,"world_novelty_boundary":"This bounded four-source screen supports only an adjacent-prior-art disposition and a researchable incremental claim. It cannot establish world novelty, patentability, freedom to operate, market size, expert acceptance, realized value, or applicability beyond the tested powder, formulation, equipment, and operating envelope."}