{"schema_version":1,"experiment_id":"eoa_inverse_innovation_exp12_substrate_denial72_20260805","cell_id":"emergent_pattern_detection__chemistry_materials","arm":"CONSTRAINED_HIGH","candidate_id":"emergent_pattern_detection__chemistry_materials__CONSTRAINED_HIGH","decision":"PROPOSAL","abstention_reason":null,"proposal":{"schema_version":1,"experiment_id":"eoa_inverse_innovation_exp12_substrate_denial72_20260805","cell_id":"emergent_pattern_detection__chemistry_materials","arm":"CONSTRAINED_HIGH","candidate_id":"emergent_pattern_detection__chemistry_materials__CONSTRAINED_HIGH","proposal_index":1,"version":0,"title":"Depth-coded separator that physically detects and interrupts emergent metal-dendrite percolation","problem":"During rechargeable-metal electrodeposition, many local tip-growth, ion-depletion, and field-concentration interactions can collectively form a conductive dendritic cluster across a separator. No individual deposition event establishes the danger, and terminal voltage may remain ordinary until the cluster completes an internal short. The concrete problem is recognizing an advancing, connected metal-growth pattern early enough to interrupt plating before it bridges the working electrodes.","actors":["Plating metal electrode","Counterelectrode","Electrolyte and separator","Locally growing metal tips and branches","Segmented guard-electrode layers","Current-limited thermal summing element","Spring-opened current interrupter","Cell safety operator"],"observable_state":"Electronic contacts made by deposited metal among laterally segmented guard islands at successive separator depths; the resulting summed guard current; an irreversible depth witness showing the furthest contacted layer; and the open or closed state of the current interrupter.","consequence":"If the connected deposit reaches the counterelectrode, it can create an internal short, localized Joule heating, irreversible cell damage, and loss of electrochemical function.","affected_objective":"Maintain electrochemical cycling without permitting an electrodeposited metal network to create a through-separator electronic short.","intervention":"Laminate several ultrathin, electrically isolated, segmented guard-electrode layers into a replaceable separator. Exposed sensing islands are arranged at successive depths but connected externally through identical current-limiting resistors to a common miniature heater. A metal branch touching an island creates an electronic contact and contributes a bounded current; ordinary ionic conduction is insufficient to contribute the same current. Multiple contacts distributed across neighboring segments and depths sum as Joule heat within the heater's thermal time window. When their combined heat crosses a calibrated phase-transition threshold, a wax or low-melting latch releases a spring contact that physically opens the plating-current path. Layer-specific fusible witness traces retain the depth reached for post-test interpretation. Geometry, resistance, thermal mass, and latch temperature constitute the aggregation, uncertainty threshold, classification, and response rule; no software is required.","structural_mapping":[{"archetype_element":"Local Signal Collection","domain_realization":"Each isolated guard island registers a local electronic contact made by electrodeposited metal at a known lateral position and separator depth."},{"archetype_element":"Aggregation Rule","domain_realization":"Current-limiting branches add their heat in one thermal mass, integrating the number, proximity class, depth, and temporal overlap of local contacts."},{"archetype_element":"Pattern Detector","domain_realization":"The latch changes phase only when aggregated heat indicates a sufficiently distributed and advancing set of low-resistance metal contacts, rather than one transient ionic fluctuation."},{"archetype_element":"Context Marker","domain_realization":"Depth-coded, segmented fusible witness traces preserve where the conductive growth reached even after current interruption."},{"archetype_element":"Desirability Classification","domain_realization":"Outward metal growth contacting several successive separator depths is physically classified as harmful because that topology approaches an electrode-spanning short."},{"archetype_element":"Response Rule","domain_realization":"Latch release causes a preloaded spring contact to open the plating circuit."},{"archetype_element":"Feedback Review Loop","domain_realization":"After each bounded cell test, microscopy and witness-trace states are compared with the trip event, and only physical parameters such as island geometry, branch resistance, thermal mass, or latch transition temperature are revised."},{"archetype_element":"Baseline and Variation Frame","domain_realization":"The heater threshold is calibrated against ionic leakage, uniform plating, isolated metal specks, and deliberately induced connected dendritic growth."},{"archetype_element":"Privacy and Legitimacy Guardrail","domain_realization":"The device senses only electrochemical continuity inside a test cell and collects no information about people."}],"mechanism_mapping":[{"mechanism_slug":"weak_signal_aggregation","role":"Each early metal-to-island contact is ambiguous alone; bounded currents from contemporaneous contacts physically combine as heat to expose the forming cross-separator pattern.","counterfactual_removal":"Without physical summation, the instrument becomes a set of isolated contact alarms and cannot distinguish distributed advancing growth from a lone speck or branch."},{"mechanism_slug":"trend_detection","role":"Successively deeper guard layers encode the directional progression of conductive growth toward the counterelectrode.","counterfactual_removal":"Without depth staging, contact indicates metal deposition somewhere but not an advancing cross-separator pattern."},{"mechanism_slug":"anomaly_detection","role":"A phase-transition latch distinguishes combined electronic-contact heating from the calibrated envelope of ordinary ionic leakage and isolated contacts.","counterfactual_removal":"Without the physical threshold, normal leakage or a single incidental contact could cause false interruption, while weak distributed contacts would remain uninterpreted."}],"causal_chain":["Local electrochemical deposition events reinforce high-field tips and produce multiple metal branches.","Some branches reach segmented guard islands at increasing separator depths, converting spatially distributed growth into local electronic contacts.","Each contact contributes a current limited by its fixed branch resistor.","Currents present within the heater's thermal time window aggregate as heat, while isolated or widely separated events dissipate below the latch transition.","Sufficient distributed, multi-depth contact heating changes the latch phase, physically identifying an advancing connected-growth pattern.","The released spring opens the plating circuit, removing the electrochemical driving current before the deposit is intended to reach the counterelectrode.","Depth-coded witness traces retain local context for inspection and recalibration."],"baseline":"A cell monitored only by terminal voltage, total current, temperature, or a single guard electrode. These baselines can detect a completed short, a bulk thermal consequence, or one local contact, but do not directly test whether distributed deposited metal is forming a spatially advancing conductive topology.","nearest_rivals":["A mechanically stronger or chemically resistant separator that attempts to block dendrite penetration without detecting its progression.","A single buried guard electrode that trips on the first metal contact but lacks spatial aggregation and depth context.","Terminal voltage or overcurrent interruption that responds when a strong leakage path or completed short changes whole-cell behavior.","Electrochemical-impedance measurement, which may sense changing cell state but does not directly localize or require an advancing conductive topology.","Optical microscopy in a transparent laboratory cell, which directly observes growth but is not an embedded autonomous interrupter."],"remaining_contrastive_claim":"The candidate's testable contrast is not general sensitivity to cell degradation; it is that a physically segmented, multi-depth continuity structure can respond specifically to the emergence of a distributed, advancing metal network and mechanically interrupt plating before a working-electrode short, while rejecting calibrated ionic leakage and isolated contacts. No claim of superiority or effect magnitude is made.","authority_safety":{"decision_authority":"A laboratory electrochemistry safety lead may authorize only the bounded low-energy aqueous-cell experiment; any deployment in a production or high-energy cell requires separate materials, electrical, and abuse-safety review.","authorized_first_step":"Fabricate and test removable guard-layer coupons in current-limited transparent aqueous zinc cells behind a physical containment shield.","excluded_actions":["Testing first in lithium-metal, high-energy, sealed, or production cells","Connecting the prototype to an unrestricted current source","Treating a trip as proof that a dangerous dendrite existed without microscopy","Using the sensing laminate as the sole cell-safety barrier","Scaling manufacturing or making reliability claims from the first experiment"],"halt_rollback":"Disconnect the current source and stop the series if the laminate increases leakage before plating, delaminates, heats outside the summing element, evolves gas unexpectedly, or visibly redirects growth toward a hazardous path. The removable coupon and external spring interrupter can then be removed, returning the apparatus to the baseline test configuration."},"negative_tests":{"strongest_counterevidence":"The guard islands themselves may distort the electric field, nucleate metal, or redirect branches, so the detected pattern could be created by the instrument rather than reveal the untreated cell's emerging behavior.","problem_falsifier":"The proposed problem framing is falsified for the selected cell geometry if microscopy shows that failures arise from single foreign-particle bridges or another localized cause rather than accumulated electrodeposition interactions, or if ordinary terminal measurements consistently provide equally early unambiguous warning.","intervention_falsifier":"The intervention is falsified if multi-depth trips do not precede working-electrode shorts, if uniform nonhazardous plating or ionic leakage causes trips, if dangerous growth bypasses the islands without sufficient heating, or if instrumented cells develop materially different growth paths from matched imaging controls.","risks":["Field distortion or heterogeneous nucleation caused by guard metals","Chemical incompatibility, corrosion, or dissolution of sensing layers","Local heating from the summing element","False trips from contamination or guard-layer defects","Missed narrow branches that bypass sensing islands","Reduced separator mechanical strength or increased ionic resistance","A spring interrupter that arcs or fails open","Overinterpreting a topology observed in a transparent aqueous model as transferable to other metal chemistries"]},"next_evidence_step":"Run a bounded blinded bench comparison using matched current-limited transparent aqueous zinc cells with plain separators, single-depth guards, and multi-depth segmented guards. Use time-lapse microscopy as the independent reference; record first guard contact, layer sequence, latch trip, working-electrode bridge, leakage, and temperature. Include uniform-plating, isolated-metal-speck, and induced-branch conditions. Section the separators afterward to determine whether the instrument detected, missed, or caused the connected growth. The immediate decision is only whether multi-depth physical aggregation merits a second prototype iteration.","prior_art_status":"UNSEARCHED","diversity_from_prior_proposals":"Not assessed against other proposals or experiment cells because runtime isolation forbids their inspection; this candidate is derived only from the supplied emergent-pattern archetype and chemistry/materials domain card.","revision_record":{"parent_version":null,"progress_targets_addressed":["Construct one causally explicit chemistry/materials candidate","Preserve the local-signal-to-macro-pattern-to-response structure","Make the essential detector and response independent of forbidden software and governance channels","State serious rivals, counterevidence, falsifiers, safeguards, and a bounded evidence step"],"conceptual_changes":["Instantiated emergent pattern detection as physical recognition of electrodeposited-metal percolation through a separator."],"operational_changes":["Specified segmented depth guards, current-limited thermal aggregation, a phase-transition latch, and a spring-opened interrupter."],"evidence_changes":["Set prior-art status to unsearched and limited the first evidence step to a controlled aqueous zinc-cell comparison."],"claim_changes":["Restricted the contrastive claim to topology-sensitive pre-short detection and interruption without asserting novelty, demand, prevalence, superiority, or effect size."]},"substrate_contract":{"primary_allowed_process":"MEASUREMENT_INSTRUMENTATION","counterfactual_independence":"If all software, algorithmic inference, databases, dashboards, reporting, incentives, authorization rules, and procedural enforcement are removed, deposited metal still closes local electronic contacts; the resulting resistor currents still combine as Joule heat; the latch still changes phase; and the spring still opens the plating circuit. Those physical events constitute the essential detection and response.","forbidden_channel_audit":"The proposal contains no software detector, learned model, database, dashboard, recommender, information-routing system, or human-in-the-loop trip decision. Layer geometry performs spatial selection, electrical continuity collects local signals, thermal mass performs temporal aggregation, a material phase transition supplies the threshold, and stored spring energy executes interruption. Human review is confined to authorizing a safe experiment and inspecting evidence afterward; it is not required for the operative effect."}}}