{"schema_version":1,"experiment_id":"eoa_inverse_innovation_exp09_archetype_breadth150_20260804","research_id":"eoa_inverse_innovation_exp09_light_prior_art_20260804","cell_id":"decoupling_via_interface__chemistry_materials","search_lanes":{"direct_problem_and_intervention":{"queries":["battery electrode conductive primer current collector carbon coated foil adhesion contact resistance binder solvent","conductive primer battery current collector compatibility different electrode formulations"],"source_ids":["SRC1","SRC3"],"no_result_note":null},"synonyms_and_historical_terms":{"queries":["primer layer current collector solvent resistance battery","primer for battery electrode multilayer conductive support electroactive layer"],"source_ids":["SRC2"],"no_result_note":null},"products_practices_and_standards":{"queries":["carbon coated aluminum foil current collector manufacturer adhesion resistance product official","battery electrode current collector adhesion standard peel test ASTM"],"source_ids":["SRC3","SRC4"],"no_result_note":null},"component_combination":{"queries":["dual sided functional conductive primer current collector solvent resistant roughness surface energy qualification","versioned interface contract battery electrode current collector primer coupon compatibility envelope","conductive primer current collector multiple electrode compositions tested adhesion resistance"],"source_ids":["SRC1","SRC2","SRC3","SRC4"],"no_result_note":"No retained source described the full combination of a fixed primer version, predeclared cross-formulation compatibility envelope, retained reference formulations, and a no-collector-retuning substitution test."}},"sources":[{"source_id":"SRC1","title":"Enabling aqueous binders for lithium battery cathodes—Carbon coating of aluminum current collector","publisher":"Journal of Power Sources; abstract indexed by U.S. EPA HERO","url":"https://hero.epa.gov/reference/13123878/","source_type":"PRIMARY_RESEARCH","claims_supported":["Changing to an aqueous CMC binder system produced serious aluminum-current-collector corrosion because of slurry pH.","A preliminary thin carbon coating prevented direct contact between the corrosive slurry and aluminum and improved the resulting electrode performance.","The result directly demonstrates that formulation chemistry can change collector-interface behavior and that an interlayer can isolate the collector."]},{"source_id":"SRC2","title":"WO2009054987A1—Primer for battery electrode","publisher":"World Intellectual Property Organization, via Google Patents","url":"https://patents.google.com/patent/WO2009054987A1/en","source_type":"OTHER","claims_supported":["Patent prior art describes one- and two-layer conductive primers between a conductive support and an electroactive layer.","Its first primer layer may be designed for adhesion to the conductive support while its second layer is selected to adhere to both the first layer and electroactive layer, closely matching the proposed differently functionalized faces.","It also teaches electrical conduction, electrolyte compatibility, corrosion protection, and formulation-dependent interactions among primer, binder, solvent, support, and electroactive material."]},{"source_id":"SRC3","title":"Simultaneous Primer Coating for Fast Drying of Battery Electrodes","publisher":"Energy Technology (Wiley-VCH) and Karlsruhe Institute of Technology","url":"https://publikationen.bibliothek.kit.edu/1000175945/155423443","source_type":"PRIMARY_RESEARCH","claims_supported":["Primer coatings are described as functional layers between current collector and electrode coating that are normally applied in a separate process.","Reported objectives include increased adhesion and reduced interface resistance; the paper also identifies binder migration during drying as an interface-relevant process problem.","The study evaluates multiple primer formulations and reports more than 200% adhesion improvement for a selected formulation, confirming measurable coupon-scale evaluation is practical."]},{"source_id":"SRC4","title":"Carbon-coated Coatings for Current Collectors","publisher":"Henan Human Chemical Industry Co., Ltd.","url":"https://global.humanchem.com/products/conductive-carbon-coatings.html","source_type":"FIRST_PARTY_PRODUCT","claims_supported":["A commercial coating is offered for roller application to aluminum or copper current-collector foil.","The supplier specifies low resistance, adhesion, solvent resistance, wetting, and corrosion prevention—the principal functional properties proposed for the interlayer.","The published specifications include visual film quality, tape-peel adhesion, and NMP/electrolyte wipe-resistance tests, showing that a limited property contract is already used commercially."]}],"problem_evidence":{"status":"PARTLY_SUPPORTED","finding":"The problem is visible at the electrode/current-collector interface. Primary research shows that changing binder/solvent chemistry can cause aluminum corrosion and that drying-related binder migration affects adhesion; the literature also treats adhesion and interface resistance as measurable primer targets. The retained evidence does not establish the full frequency or magnitude of formulation-specific collector-preparation retuning across laboratory screening programs, nor that such retuning routinely confounds active-material comparisons.","source_ids":["SRC1","SRC3"]},"closest_prior_art":[{"name":"Two-layer primer for battery electrodes (WO2009054987A1)","source_ids":["SRC2"],"overlap":"Places a conductive primer between collector and electroactive layer and expressly assigns different functions to collector-adjacent and electrode-adjacent primer layers, including adhesion, electrical conduction, solvent/electrolyte compatibility, and corrosion protection.","remaining_difference":"It does not disclose operating one fixed primer version as a predeclared, version-controlled compatibility contract across swappable formulations or testing whether substitutions eliminate collector-side retuning."},{"name":"Carbon-coated aluminum foil enabling aqueous CMC cathodes","source_ids":["SRC1"],"overlap":"Uses a thin carbon interlayer to isolate aluminum from a changed binder/solvent formulation, prevent corrosion, and retain electrode performance.","remaining_difference":"It demonstrates adaptation to one problematic formulation rather than a qualified cross-formulation boundary with fixed collector preparation."},{"name":"Research and commercial conductive-primer coatings","source_ids":["SRC3","SRC4"],"overlap":"Separately applied primer layers, adhesion and resistance measurements, solvent-resistance tests, and product-level specifications are already established.","remaining_difference":"The retained sources do not combine those specifications with version identifiers, retained-reference transition tests, a declared multi-formulation envelope, and a no-retuning substitution criterion."}],"prior_art_disposition":"ADJACENT_PRIOR_ART","contrastive_claim_remaining":"Relative to known multilayer primers and carbon-coated collectors, one independently manufactured and versioned primer can be qualified in advance against a declared electrical, mechanical, surface, and solvent envelope and then support substitution among at least three materially different approved electrode formulations without changing collector preparation or drying settings, while reducing formulation-dependent peel-failure-location and interface-resistance variation relative to bare foil.","contrastive_claim_falsifier":"The claim is falsified by prior art that already teaches the same versioned cross-formulation contract and fixed-process substitution protocol, or experimentally if any nominally in-envelope formulation requires collector-side adjustment, materially changes primer resistance or failure location beyond preset tolerances, attacks the foil, or yields no reduction in substrate-by-formulation interaction relative to bare foil.","gates":{"adequate_source_search":{"status":"PASS","rationale":"Four search lanes covered direct terminology, older primer terminology, research, patents, commercial practice, test standards, and component combinations. Exactly four opened sources span four publishing contexts and include two primary studies and one first-party product. This is adequate for a coarse screen but not exhaustive.","source_ids":["SRC1","SRC2","SRC3","SRC4"]},"supported_problem":{"status":"PASS","rationale":"The problem is partly supported: formulation chemistry, drying, adhesion, resistance, and corrosion visibly interact at the collector boundary, although routine laboratory retuning and comparison confounding remain underdocumented.","source_ids":["SRC1","SRC3"]},"distinct_testable_claim":{"status":"PASS","rationale":"A narrower distinction remains falsifiable through preset contract thresholds, one fixed primer version, multiple formulations, unchanged collector-side processing, and comparison of interaction variance against bare foil.","source_ids":["SRC1","SRC2","SRC3","SRC4"]},"bounded_next_test":{"status":"PASS","rationale":"The proposed 18-coupon factorial comparison is bounded, non-energized, and directly measures adhesion, resistance, visible foil change, and defects. Existing research and commercial specifications show these measurements are practicable; thresholds should be fixed before testing.","source_ids":["SRC3","SRC4"]},"no_obvious_safety_or_authority_stop":{"status":"PASS","rationale":"No retained source indicates a categorical stop for small, non-energized coupons. The proposed step is limited to already-approved materials and controls, reserves approval to the PI, test owner, and EHS personnel, and provides halt and disposal conditions. Local chemical approval remains controlling.","source_ids":["SRC1","SRC3","SRC4"]}},"screen_survival":true,"world_novelty_boundary":"This bounded public-web search establishes only adjacent prior art and a residual operational claim. It cannot establish world novelty, patentability, freedom to operate, market size, expert acceptance, scalability, electrochemical value, or realized benefit. Broader patent-family, standards, supplier, and literature searches could eliminate the remaining distinction."}