{"schema_version":1,"experiment_id":"eoa_inverse_innovation_exp12_substrate_denial72_20260805","research_id":"eoa_inverse_innovation_exp12_light_screen_20260805","cell_id":"modular_decomposition__chemistry_materials","search_lanes":{"direct_problem_and_intervention":{"queries":["electrochemical flow cell modular cassette replaceable electrode membrane compression","fuel cell test fixture reproducible compression replaceable MEA hardware","electrolyzer cassette replaceable membrane electrode assembly patent"],"source_ids":["SRC1","SRC2","SRC3"],"no_result_note":null},"synonyms_and_historical_terms":{"queries":["patent electrochemical cell electrode cassette replaceable membrane cassette","patent fuel cell cassette replaceable electrode module gasket","electrochemical test cell cartridge exchangeable electrodes separator modular"],"source_ids":["SRC3","SRC4"],"no_result_note":null},"products_practices_and_standards":{"queries":["fuel cell test fixture reproducible compression replaceable MEA hardware","electrochemical cell assembly pressure alignment gasket contact resistance repeatability research"],"source_ids":["SRC1","SRC2"],"no_result_note":null},"component_combination":{"queries":["modular flow cell exchangeable electrodes gasket research","electrochemical flow cell modular cassette replaceable electrode membrane compression","patent fuel cell cassette replaceable electrode module gasket"],"source_ids":["SRC2","SRC3","SRC4"],"no_result_note":null}},"sources":[{"source_id":"SRC1","title":"Development of reference hardware for a harmonised testing of PEM single cell fuel cells","publisher":"Publications Office of the European Union / Joint Research Centre","url":"https://op.europa.eu/en/publication-detail/-/publication/57794ea3-7585-11eb-9ac9-01aa75ed71a1/language-en","source_type":"OFFICIAL_GUIDANCE","claims_supported":["Fuel-cell testing hardware and working conditions can materially affect measured MEA performance.","Controlled MEA compression and uniform pressure, temperature, flow, and concentration are important for comparable tests.","Reference hardware was designed and experimentally validated to reduce hardware-induced variation."]},{"source_id":"SRC2","title":"Standardised single cell test stand for electrolysers","publisher":"DILICO engineering GmbH","url":"https://www.dilico.de/en/products/dilico-cell-test-system","source_type":"FIRST_PARTY_PRODUCT","claims_supported":["A commercial PEM/AEM electrolyzer test stand already provides rapid membrane integration through a quick-connect fixture.","The product applies adjustable pneumatic compression and is marketed for reproducible membrane testing.","Rapid specimen exchange and controlled compression are established product-level practices, although the page does not disclose independently preloaded catalyst, separator, and counterelectrode cassettes."]},{"source_id":"SRC3","title":"Membrane Fixation to Cassette for Electrolyzer, U.S. Patent Application 20250043445","publisher":"Justia Patents","url":"https://patents.justia.com/patent/20250043445","source_type":"OTHER","claims_supported":["The application discloses a membrane held between gasket parts by locking features so it remains registered and can be handled as one unit.","It discloses an electrolyzer cassette combining that retained membrane assembly with electrolyte plates and sealing interfaces.","The cassette can use grooves and locking geometry for accurate positioning and fluid-tight assembly."]},{"source_id":"SRC4","title":"Electrodes for Cost-Effective Bio-Electrochemical Systems, U.S. Patent 12,122,689","publisher":"Justia Patents","url":"https://patents.justia.com/patent/12122689","source_type":"OTHER","claims_supported":["The patent discloses framed electrode cassettes containing electrodes, current collectors, padding, spacers, and electrical interfaces.","The electrode cassette is described as a modular building block that permits easy replacement and can engage a rack structure.","This establishes close prior art for retained electrode subassemblies, though in bio-electrochemical systems rather than the proposed laboratory flow-cell architecture."]}],"problem_evidence":{"status":"PARTLY_SUPPORTED","finding":"The underlying confounding problem is visible: official reference-hardware work reports that cell hardware and operating conditions affect measured MEA performance and specifically emphasizes controlled compression, while commercial equipment advertises reproducible compression and rapid membrane exchange. The retained sources do not directly quantify how much non-target alignment, wetting, resistance, or compression changes after a nominally local substitution, so the proposal's full disturbance diagnosis remains only partly supported.","source_ids":["SRC1","SRC2"]},"closest_prior_art":[{"name":"DILICO quick-connect electrolyzer membrane test stand","source_ids":["SRC2"],"overlap":"Provides rapid membrane exchange in a standardized cell fixture with adjustable pneumatic compression for reproducible testing.","remaining_difference":"The disclosed product does not show multiple independently retained functional cassettes whose unopened internal layers remain preloaded during another cassette's exchange."},{"name":"Gasket-locked electrolyzer membrane cassette","source_ids":["SRC3"],"overlap":"Retains a membrane between gasket parts using positional locking features, permits unit handling, and provides aligned sealing against adjacent plates.","remaining_difference":"It principally packages the membrane and adjacent electrolyte-plate structure; it does not disclose the proposed simultaneous partition into independently exchangeable catalyst/PTL, separator, counterelectrode, and reusable flow-field/current-collector modules."},{"name":"Bio-electrochemical electrode-pair cassette","source_ids":["SRC4"],"overlap":"Packages electrodes, frames, current collectors, padding, spacers, and electrical interfaces as an easily replaceable modular building block that can fit a rack.","remaining_difference":"It does not demonstrate a leak-tight laboratory flow-cell stack with a separately retained separator cassette, standardized cross-cassette fluid faces, hard-stop compression datums, or preservation of non-target cassette preload during exchange."},{"name":"Harmonised PEM single-cell reference hardware","source_ids":["SRC1"],"overlap":"Treats compression and hardware-induced variation as experimental-control problems and validates standardized hardware intended to improve inter-test comparability.","remaining_difference":"It standardizes whole-cell test hardware rather than decomposing internal functions into separately preloaded, locally exchangeable cassettes."}],"prior_art_disposition":"ADJACENT_PRIOR_ART","contrastive_claim_remaining":"In one common laboratory flow-cell frame, separately retained catalyst/porous-transport, separator, and counterelectrode cassettes can permit exchange of one designated functional group while the internal registration and preload of unopened cassettes remain within predefined tolerances, and the reassembled cell still meets common leak, pressure-drop, contact-resistance, and electrochemical checks. The retained prior art separately establishes quick-change controlled-compression fixtures, membrane cassettes, and electrode cassettes, but not this complete independently retained multi-cassette arrangement.","contrastive_claim_falsifier":"The claim is falsified if matched repeated exchanges show no smaller change in non-target registration, thickness, compression, contact resistance, pressure drop, leakage, or wetting-sensitive impedance than a conventional loose-layer fixture, or if the cassette interfaces cannot repeatedly pass the same leak, electrical, transport, and whole-cell checks without case-specific rebuilding.","gates":{"adequate_source_search":{"status":"PASS","rationale":"The bounded search covered direct architecture terms, cassette/cartridge and older modular terminology, commercial and official testing practices, patents, and combinations of retained membranes, electrode cassettes, sealing, registration, and controlled compression. Exactly four opened sources from four publisher contexts were retained, including an official source and a first-party product source.","source_ids":["SRC1","SRC2","SRC3","SRC4"]},"supported_problem":{"status":"PASS","rationale":"The problem is partly supported: official reference-hardware work confirms hardware-dependent performance and the importance of compression control, and a commercial test fixture addresses reproducible compression and rapid specimen exchange. Direct evidence for every claimed disturbance mode is absent, which limits but does not defeat the gate.","source_ids":["SRC1","SRC2"]},"distinct_testable_claim":{"status":"PASS","rationale":"A distinct contrast remains despite close component prior art: simultaneous independent functional cassettes must preserve the measured internal state of unopened cassettes during local exchange while still composing into an operating flow cell. This can be tested against both loose-layer and quick-change whole-specimen fixtures.","source_ids":["SRC1","SRC2","SRC3","SRC4"]},"bounded_next_test":{"status":"PASS","rationale":"A low-pressure paired prototype study can limit itself to repeated exchanges and predefined dimensional, leak, pressure-drop, resistance, and whole-cell acceptance measurements. Controlled-compression reference hardware and commercial quick-change fixtures make this a technically bounded comparison rather than a scale-up claim.","source_ids":["SRC1","SRC2"]},"no_obvious_safety_or_authority_stop":{"status":"PASS","rationale":"No categorical stop is visible for a removable low-pressure prototype restricted to already approved aqueous chemistry, gas handling, electrical limits, and fixture ratings under the laboratory's designated safety authority. Comparable commercial electrolyzer test equipment exists, but that does not waive ordinary pressure, hydrogen/oxygen, electrical, chemical-compatibility, ventilation, and waste controls.","source_ids":["SRC2"]}},"screen_survival":true,"world_novelty_boundary":"This bounded public-web screen found adjacent prior art and preserves only a testable architectural contrast. It cannot establish world novelty, patentability, freedom to operate, market size, expert acceptance, safety certification, realized value, or a superior effect size."}